#  @zkmastertech ZK MasterTech ZK MasterTech posts on YouTube about zk, service, shop, green the most. They currently have [-------] followers and [---] posts still getting attention that total [------] engagements in the last [--] hours. ### Engagements: [------] [#](/creator/youtube::UCp4xj7dAgee-6Hg9qo-R6Og/interactions)  - [--] Week [-------] +105% - [--] Month [-------] -33% - [--] Months [---------] +48% - [--] Year [---------] +118% ### Mentions: [--] [#](/creator/youtube::UCp4xj7dAgee-6Hg9qo-R6Og/posts_active)  - [--] Month [--] -3.90% - [--] Months [--] +35% - [--] Year [--] +196% ### Followers: [-------] [#](/creator/youtube::UCp4xj7dAgee-6Hg9qo-R6Og/followers)  - [--] Week [-------] no change - [--] Month [-------] +0.98% - [--] Months [-------] +8% - [--] Year [-------] +14% ### CreatorRank: [-------] [#](/creator/youtube::UCp4xj7dAgee-6Hg9qo-R6Og/influencer_rank)  ### Social Influence **Social category influence** [currencies](/list/currencies) [technology brands](/list/technology-brands) [automotive brands](/list/automotive-brands) [social networks](/list/social-networks) **Social topic influence** [zk](/topic/zk) #43, [service](/topic/service), [shop](/topic/shop), [green](/topic/green), [iron](/topic/iron) #2644, [tech](/topic/tech), [fuel](/topic/fuel), [in the](/topic/in-the), [calls](/topic/calls), [oil](/topic/oil) **Top accounts mentioned or mentioned by** [@thezkmastertechisfromwebapp1senderdevicepc](/creator/undefined) [@thezkmastech](/creator/undefined) [@stellarindustries](/creator/undefined) [@thezkmastertech](/creator/undefined) [@millennialfarmer](/creator/undefined) [@sloanimplement](/creator/undefined) [@sloanexpress](/creator/undefined) [@carpuride](/creator/undefined) **Top assets mentioned** [Crane Holdings, Co. (CR)](/topic/$cr) ### Top Social Posts Top posts by engagements in the last [--] hours "Hydraulic Nightmare This John Deere [----] Had ZERO Oil Pressure What started as a simple service call on a John Deere [----] that wouldnt start quickly turned into a full hydraulic nightmare. After getting the tractor running and driving it I found it had zero hydraulics and absolutely no charge pressure. The tractor was hauled back to the shop for further diagnosis and things only got worse from there. During testing there was no charge pressure and not even a drop of oil coming out of the charge pump outlet. After draining the oil and removing the sump screen the problem became clear the" [YouTube Link](https://youtube.com/watch?v=3ZD_C01dj9g) 2026-02-13T20:00Z 103K followers, 34.6K engagements "John Deere 8370R IVT removal. (Part 1) In this video Josh and I are going to remove the IVT transmission from the 8370R in order to replace the hydro inside the IVT. See what it takes to split the tractor and remove the transmission Check out my merch store https://zk-mastertech.myspreadshop.com/ Want a career with Sloan Implement https://www.sloans.com/career Check out my Amazon store front Buy the tools I use and recommend https://www.amazon.com/shop/zkmastertech IVT transmission transmission repair john deere 8R IVT tractor repair sloan implement zk mastertech 8370R IVT transmission" [YouTube Link](https://youtube.com/watch?v=ctsjS15NtSI) 2023-08-11T15:10Z 103K followers, 86.6K engagements "John Deere 8370R IVT disassembly (Part 2) In this video you will get to see the IVT transmission get disassembled in order to figure out what is wrong with it. This is one of my favorite jobs to do in the shop. I just love taking transmission's apart and figuring out what the problems are. So I thought I would take you guys along. Enjoy Check out my merch store https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front Buy the tools I use and recommend https://www.amazon.com/shop/zkmastertech Interested in a career with Sloan Implement https://www.sloans.com/career john deere" [YouTube Link](https://youtube.com/watch?v=bQ1ifDbSuM4) 2023-08-18T22:09Z 103K followers, 90.8K engagements "8RX [---] track 9360R Radiator X9 Issues & S780 Electrical Gremlins Harvest [----] Service Calls [--] In Harvest [----] Service Calls [--] its another packed round of field and shop repairs during one of the busiest times of the year. The day kicks off with a John Deere S660 throwing a fuel dosing inlet pressure fault. Then its on to a 9360R with a leaking radiator and an X9 [----] with a bad unloading auger latch assembly. Next up an S780 in the field develops strange electrical issues traced to bad grounds and a software glitch. An S680 rolls in with a shredded chopper jackshaft belt a leaking grain" [YouTube Link](https://youtube.com/watch?v=iihR7dLnDV0) 2025-10-04T11:30Z 103K followers, 50K engagements "Come meet me at the National Farm machinery show Sloan Express booth [----] #nfms" [YouTube Link](https://youtube.com/watch?v=klVPprbNYYk) 2026-02-14T13:25Z 103K followers, [----] engagements "John Deere Master Ag Technician service truck tour See what tooling it takes to be a Master John Deere Ag Technician I have been collecting tools since [----] after I graduated from Wyotech. Loads of Snap-on Milwaukee Gearwrench knipex Matco Sunex Tekton Deere tools and more My service truck is a mobile shop and I need to have everything to do whatever task I need to in any weather condition. In harvest and planting season I am working under pressure and I cannot afford to not have the right tool for the job. But I will admit I might have a slight tool addictionlol. Want to see the best of ZK" [YouTube Link](https://youtube.com/watch?v=gzNVFDaBp_M) 2021-07-20T12:07Z 103K followers, 229.2K engagements "This John Deere 8370R Wouldnt Come Out of Park Heres What Failed Inside the IVT This John Deere 8370R came to a complete stop during harvest when the IVT transmission would not finish its startup calibration and would not come out of park. Forced calibration attempts failed so pressure testing was performed to determine what was really going on inside the transmission. System [--] pressure was found to be only [--] psi when specification called for [---] psi indicating a major internal leak. Based on the codes being set and the pressure readings a failed hydro module inside the IVT transmission was" [YouTube Link](https://youtube.com/watch?v=t6GRId0pzyw) 2021-10-26T15:42Z 103K followers, 520.6K engagements "2023 RAM [----] Service Truck Tour Built to Work with Stellar T-Max Crane Join me for an in-depth tour of my brand new [----] RAM [----] service truck outfitted with a Stellar Industries T-Max crane body. This build is all about heavy-duty performance smart organization and getting the job done right. Heres what youll see in this video: ✅ Exterior Walkaround A close look at the RAM [----] and the rugged T-Max crane setup 🔧 Tool Storage & Organization Compartments drawers and racks packed with Milwaukee Snap-On Matco Gearwrench Tekton Sunnex and more ⚙ Custom Add-Ons Modifications that make this" [YouTube Link](https://youtube.com/watch?v=1I7ac9VQ_Us) 2024-11-28T16:41Z 103K followers, 59.5K engagements "The Most Optioned $1M John Deere X9 Full Inspection Back at the farm with one of the most impressive machines Ive ever inspected a brand-new John Deere X9 [----] thats only run one season equipped with the Ultimate Technology Package and literally every option Ive ever seen. This is a true million-dollar combine and in this video I walk through a complete front-to-back inspection showing exactly what I look for on an X9 and the key areas that deserve extra attention. Using the Shop Dog Industries CBX combine turning tool I break this machine down section by section feederhouse tracks residue" [YouTube Link](https://youtube.com/watch?v=G7ZiUcPlYa0) 2026-01-17T16:00Z 103K followers, 33.5K engagements "John Deere 8R [---] fuel tank replacement In this video I work on replacing a fuel tank that got a hole rubbed into it because one of the wheel wedges came loose and the tire went inward causing it to rub a hole into the tank This is usually caused from human error and not getting them tight enough properly torqued or the wedges didn't get re-torqued after some hours were put on the tractor. I've never had a wheel come loose when it is properly torqued and re-torqued after driving it. But it is what it is and needs to be fixed. A lot more stuff has to come off than I thought to get the fuel" [YouTube Link](https://youtube.com/watch?v=YN4zdqLeu1E) 2022-06-12T17:16Z 103K followers, 291.5K engagements "John Deere 6125R IVT low lube pressure codes Part [--]. Thanks to BRUNT for sponsoring this video Get $10 off your first purchase with a 30-day risk-free trial at https://brunt.yt.link/Fpmgj66 using code ZK10. In this video I continue the work of reconditioning the MFWD that had a blown shaft seal which was causing a severe lube pressure leak in the IVT transmission. Watch as I show you how to rebuild the MFWD step by step and get this tractor running again. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a" [YouTube Link](https://youtube.com/watch?v=h9eGLvcWCgY) 2024-07-26T12:00Z 103K followers, 44.3K engagements "First Look: John Deere S7 [---] Through a Master Technicians Eyes In this video I take you on my very first master technician walkthrough of the all-new John Deere S7 [---] combine. Forget the usual salesman tour this is a deep dive into the nuts and bolts of every upgrade Deere packed into this machine. From the redesigned cab and powerhouse engine to next-level cleaning systems and cutting-edge electronics I break down all the real improvements and share my honest unfiltered opinion. This is the very first S7 combine Ive had the chance to check out so youre getting my raw first reactions to" [YouTube Link](https://youtube.com/watch?v=qJCPB9Et5p0) 2025-08-09T11:42Z 103K followers, 72.3K engagements "John Deere S770 Combine Major Feederhouse Rebuild Hydraulic Fixes & PowerCast Upgrades Back on the John Deere S770 combine for a full round of inspections repairs and upgrades. What started as a simple grease seal issue on the variable speed feederhouse drive turned into a complete rebuild with multiple new parts and a full reassembly including a step-by-step on putting the upper variable back together and adjusting the speed correctly. Other repairs and upgrades in this video include: Replacing the broken shoe auger drive bearing Vertical auger gearbox rebuild & auger replacement Installing" [YouTube Link](https://youtube.com/watch?v=sHr-7avLCZ4) 2025-08-16T12:01Z 103K followers, 35.2K engagements "John Deere 8370R IVT assembly (Part 3) In this video we are putting the IVT back together with some new parts. It is a very meticulous job getting every detail right and there is zero room for error. Come tag along with us and you can watch how this modern marvel transmission gets reassembled. The IVT is an incredible transmission and it just amazes me how it works. It is one of my favorite transmissions to work on. Check out my merch store https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front Buy the tools I use and recommend https://www.amazon.com/shop/zkmastertech Want a" [YouTube Link](https://youtube.com/watch?v=2h0lFsqRt5E) 2023-08-25T13:37Z 103K followers, 143.8K engagements "X9 Turbo Leak S780 Transmission and separator clutch Failure X9 hits a pole with unloading auger Thanks to Rakd Audio for sponsoring this video Go to https://getrakd.com and use discount code ZK10 to get 10% off your purchase on the new V2.1 Bluetooth speaker In this episode of Harvest [----] Service Calls [--] the week starts out with an X9 combine thats leaking coolant out of the turbo box on the big 13.6L engine. Then its back to the shop where I show off my brand new Rakd Audio Bluetooth Ammo Can Speaker this things built tough and sounds awesome. Next up I dig into an S780 in the shop thats" [YouTube Link](https://youtube.com/watch?v=3boNwPg86pc) 2025-10-11T11:00Z 103K followers, 48.3K engagements "It Ate Something BAD 💥 Shop Carnage + Harvest Fixes The harvest just wont end and neither do the breakdowns. We start by rescuing a [----] with a locked-up enginewinching it onto a drop-deck with an 8R doing the pulling and steering hoses to snake it onto a trailer it barely fits. Then its an S790 with a DEF dosing pressure fault (bad pressure sensor in the dosing unit). Swap the sensor back to combining corn. Next an 8R [---] with no cab heatdiagnostics point to a stuck-closed water valve (temperature actuator). Fixed and warm again. On to an S780 thats losing prime all fall and hates cold" [YouTube Link](https://youtube.com/watch?v=KehyUOcJh5c) 2025-11-15T15:00Z 103K followers, 83.8K engagements "@MillennialFarmer 8RT tractor & high speed planter inspection (Part 1) Went on the longest service call ever to Millennial Farmer's shop in Minnesota. I've got my best friend Caleb with me and he is a planter master Together we team up and show how Sloan Implement gets it done In part [--] we get the tractor ready to hook up to the planter hook up the planter talk about all the hydraulic and electrical connections and get it unfolded and ready to inspect. #johndeere #johndeeretractor #johndeeretractorpower #agriculture @MillennialFarmer @sloanimplement @sloanexpress Want to see the best of ZK" [YouTube Link](https://youtube.com/watch?v=OlZaG9CCEzQ) 2022-03-04T21:00Z 103K followers, 277.1K engagements "After Everything This [----] Went Through This Is the Moment This is the final chapter of the John Deere [----] engine saga. After a catastrophic engine failure and draining oil full of bearing material this tractor has been torn down rebuilt and put back together one system at a time. Today is the moment where everything comes together or doesnt. There are no guarantees at this stage. After everything this tractor has been through it all comes down to one turn of the key. In this video I walk through installing the replacement engine reconnecting the fuel system cooling system charge air wiring" [YouTube Link](https://youtube.com/watch?v=P8ga9uBrVPY) 2026-01-31T21:00Z 103K followers, 41.7K engagements "Replacing a Failed 12.5L John Deere [----] Complete Block Build This John Deere [----] didnt just need parts it needed a second chance. In this video I take a completely failed 12.5L engine and build a brand-new complete block assembly from the stand up showing every critical step along the way. The original engine failure was caused by a failed water pump that allowed coolant to intrude into the engine oil which led to main bearing failure and rapid internal engine damage. This was not operator error or neglect once coolant contamination occurs bearing damage can escalate quickly and replacement" [YouTube Link](https://youtube.com/watch?v=XtpVJhMjTYY) 2026-01-24T20:30Z 103K followers, 58.9K engagements "Major Failure Inside This S780 [--] Speed Feeder House Gear Case Last harvest season this John Deere S780 combine came to a stop in the field with low transmission supply pressure. Field diagnostics led to a failure inside the [--] speed feeder house gear case specifically the C91 (first gear) clutch. After the season ended the customer brought the combine into the shop so the machine could be torn down and repaired properly. In this video the combine is brought into the shop and disassembled for repair. The duals and gull wing door had to be removed for access along with drive shafts hydraulic" [YouTube Link](https://youtube.com/watch?v=rsMAerlXS_A) 2026-02-07T21:00Z 103K followers, 44.2K engagements "Chasing Harvest Breakdowns Service Calls Across Multiple Days (EP. 1) Kicking off my brand-new series Harvest [----] Service Calls 🌽🚜 Over the course of several busy harvest days I hit the road to tackle a wide variety of breakdowns diagnostics and repairs. Each day brings something different and you never know where the next call will take me. We start with an update on the S680 Ive been working on then head out to a John Deere S670 with a banging noise in the cleaning shoe. The pre-cleaner was about ready to fall out causing damage to the pre-cleaner chaffer and sieve elements all of which" [YouTube Link](https://youtube.com/watch?v=dJ5D8fcTDnA) 2025-09-13T01:20Z 103K followers, 32.8K engagements "🔧 Massive John Deere Repairs: 8400R Harness Headaches & 8360R ILS Overhaul Its a full throttle day of Deere diagnostics and serious repairs We kick things off with an update on the John Deere 8400R and the ongoing battle with its chassis and transmission wiring harness issues. Then its off to the farm to tackle a long list of repairs on a John Deere 8360R. This round includes: Replacing ILS accumulators Swapping out SCV couplers Repairing a leaking oil cooler line Installing a new hydraulic restriction sensor Rebuilding the RH ILS steering cylinder guide After the 8360R is squared away we" [YouTube Link](https://youtube.com/watch?v=33e904T615A) 2025-04-04T23:00Z 103K followers, 113.5K engagements "We Put It Back Together Did This 9.0L Survive Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/PKfEl6p using code ZKMASTERTECH. Before tearing into reassembly heres some background on why this engine was removed in the first place. This John Deere S670 came in with a running issue that led to finding a failed intake valve. What started as a single component failure had the potential to cause major engine damage if it was put back into service. To be absolutely sure there were no additional issues hiding below the surface the decision was made" [YouTube Link](https://youtube.com/watch?v=6dvK_GAb600) 2025-12-20T21:00Z 103K followers, 45.7K engagements "The Worst Engine Vibration Ive Ever Felt 9510R Torsional Damper Failure If youve never felt a failed torsional damper youre in for a wild onethis John Deere 9510R felt like the engine was about to jump out of the frame In this video Ill walk you through what it takes to replace the torsional damper behind the enginea job made even tougher when theres no room to work. This years been extra dry and these tractors are pulling harder than ever. Ive already seen a couple of these dampers fail and getting them out isnt easy I might need to bring a smaller guy with me next time. 💥 Expect insane" [YouTube Link](https://youtube.com/watch?v=6mq2pWMR5aw) 2024-11-16T12:04Z 103K followers, 122.3K engagements "Worst Equipment Carnage I've Ever Seen This video is a compilation of the worst equipment carnage Ive seen real-world failures caught during diagnostics in both the field and the shop. From catastrophic engine damage and transmission failures to hydrostatic pumps completely puking their guts out to failed axle bearings a harness fire and machines instantly taken out of service this video shows what failure actually looks like when it happens for real. This compilation pulls together failures from dozens of different machines across multiple model lines tractors combines and harvest equipment" [YouTube Link](https://youtube.com/watch?v=98Qn0zUlc-8) 2026-01-03T16:00Z 103K followers, 92.6K engagements "S670 Engine REMOVAL & Tear-Down You Wont Believe What I Found Inside I just reached 100K subscribers and I want to thank every single one of you for helping me get here. Your support means more than you know. Now we dive into a brand-new series: [----] Winter Shop Projects. First up is a John Deere S670 I looked at this fall that was throwing an intake manifold air temperature high code and derating the engine. During my initial diagnosis I suspected an intake valve issue around cylinder [--] based on the compression noise in the intake and how fast the sensor was heating. We had the combine" [YouTube Link](https://youtube.com/watch?v=HqGQP0KhsrA) 2025-12-06T21:00Z 103K followers, 106.4K engagements "Major Combine Repairs in the Heat of Harvest Good ol' [--] Series combine Got to love it Its harvest season which means the service calls dont stop. In this video I cover a full round of combine repairs diagnostics and field fixes: Update on the John Deere S790 getting a complete cleaning shoe rebuild in the shop Service call on an S780 throwing emissions codes diagnosed a bad aftertreatment temp module replaced it and ran a regen John Deere [----] with a bad header lift control valve that left the header stuck on the ground S680 with a grain tank cover and fountain auger fold problem S7800 with" [YouTube Link](https://youtube.com/watch?v=KouDEDEui48) 2025-09-20T12:35Z 103K followers, 67.7K engagements "X9 Shop Repairs & a Look at a $1M X9 X9 shop repairs: clean grain elevator overhaul + cleaning fan belt & sheave maintenance. Plus a quick look at a $1M X9 [----] and a [----] engine surprise back at the shop. We kick this one off with a quick [----] update (and a teaser of whats coming) then dive straight into the X9 clean grain elevator work: paddle chain removal belt de-tension top sprocket chain install and lower auger install. From there I tighten everything back up and move into the cleaning fan drive belt driven sheave oil change and fan belt install. We also run into a midfloor issue that" [YouTube Link](https://youtube.com/watch?v=NSCi0n3FCCg) 2026-01-10T16:00Z 103K followers, 52.7K engagements "This John Deere [----] Axle Was Failing Heres How We Caught It in Time What started as a simple axle seal leak turned into a major front axle bearing failure in progress on this John Deere [----]. The customer noticed oil leaking from the front axle and being slung all the way up to the windshield. Once the tractor arrived at the dealership I checked the axle bearing end play and immediately knew something wasnt right it was way out of specification. After draining the axle a large amount of metal and bearing material came out confirming the axle bearings were failing and the tractor was on" [YouTube Link](https://youtube.com/watch?v=P5oXHWcLa5k) 2021-11-22T10:06Z 103K followers, 2.7M engagements "The [----] That REFUSES to Run Today was a big diagnostic day in the shop. The main issue A John Deere [----] that starts runs for a few seconds and dies until it finally goes completely dead. This wasnt a battery issue. This was electronic: CAN power grounds relays ECU failure and everything in between. Follow along as I test trace and finally track down the culprit. Also included in this video: Diagnosing a 9620RX that wont throttle up Full road test after verifying active codes Replacing the DEF dosing unit on the 9620RX Swapping and programming the ECU on the [----] Cold-weather gear-up segment" [YouTube Link](https://youtube.com/watch?v=VXwLxwzudl8) 2025-11-30T00:00Z 103K followers, 85.2K engagements "Oil Pressure Was In Spec Then This [----] Engine Destroyed Itself This is a follow-up to the John Deere [----] with a 12.5L engine that suffered a catastrophic engine failure after a water pump failure allowed coolant into the crankcase. The water pump was replaced the crankcase flushed oil and filters changed and oil pressure checked. Everything looked acceptable on paper. This video is part of the Winter Shop Projects series (Episode 4). Cold oil pressure was strong. Hot oil pressure was lower but still within minimum specification. To fully evaluate it under load we took the tractor to the" [YouTube Link](https://youtube.com/watch?v=Xc2NXobIquE) 2025-12-29T21:00Z 103K followers, 119.1K engagements "Small Problem HUGE Repair Intake Valve Failure on a 9.0L We start off with a look at the intake valve failure on the 9.0L engine out of the S670 combine. Before this engine can go back into the machine I dig into replacing the water pump and the leaking main engine gear case input shaft seal. Once thats handled we shift gears while waiting on the cylinder head to return from the machine shop. Next up is an X9 [----] clean grain auger repair back at the shop. And then the next morning its time to brave the cold. I throw on the gear and head out to a Bron [---] tile plow throwing DEF system faults." [YouTube Link](https://youtube.com/watch?v=vU5hOXr3ZA8) 2025-12-13T21:00Z 103K followers, 60.1K engagements "This [-----] LB Beast Is Powered by a John Deere 13.6L 💪🔥 In this one I dive into repairs on a BRON [---] tile plowan [-----] LB beast powered by a John Deere 13.6L engine. The water pumps shot and its time to get it swapped out and back to work. Then its over to an 8400R Ive already started diagnosing. The SCVs arent working and the root cause is a load sense issue inside the priority valve. Time to tear in fix the problem and get this tractor back in the field. Big iron deep diagnostics and real-world repairsjust another day in the shop Want to see the best of ZK MasterTech Check out my top" [YouTube Link](https://youtube.com/watch?v=0pk-b0pMyVc) 2025-03-07T13:12Z 95.8K followers, 39.6K engagements "John Deere 8370R hydraulic diagnostics - This one ALMOST stumped me Going back to the 8370R that the customer is complaining of hard steering when turning on the end rows while planting. Got to love a good challenge Continuing from part [--] I am back to replace the load compensation valve on the main pump that I could NOT get to adjust because the adjustment screw was seized solid. Got to get the main pump pressure up to continue diagnostics. One thing leads to another and I end up having to yank the duals off to make some pressure adjustments and replace the whole entire priority valve" [YouTube Link](https://youtube.com/watch?v=21JSLDTEUjM) 2024-07-20T17:00Z 90.7K followers, 61.3K engagements "X9 Rock Damage Elevator Repairs & Serious Chopper Upgrade Back on the John Deere X9 [----] for more repairs and upgrades. I finish up work on the clean grain elevator by replacing both the top and bottom chain sprockets and installing a new lower elevator boot. Then I get into some serious rock damage in the discharge beater that needs attention. Finally its time for a major chopper upgrade removing the powercast tailboard installing an updated chopper floor and bolting in some aggressive powercast paddles to keep this thing from plugging. This ones all about pushing through and keeping that" [YouTube Link](https://youtube.com/watch?v=29K-wQ6I0U0) 2025-06-20T23:30Z 103K followers, 30.2K engagements "Learn how a John Deere R134a air conditioning system works We are busting out the simulator Let my sponsor BetterHelp connect you to a therapist who can support you - all from the comfort of your own home. Visit https://betterhelp.com/zkmastertech and enjoy a special discount on your first month This video is the best basic A/C lesson in [--] minutes you will ever see. Bringing in my buddy Caleb in on this video at the Sloan's training center to show you how a basic A/C system works. We will talk about the basic theory of heat transfer and how that applies into air conditioning. We are going to" [YouTube Link](https://youtube.com/watch?v=3-m9DAuTt2c) 2024-03-22T12:00Z 79K followers, [----] engagements "Going deeper into repairs on the 8295R (Part 2) In this video we dive right back into repairs on the John Deere 8295R. See the process of replacing the MFWD differential housing bearing and seals ILS drive shaft re-sealing the final drive and charging and replacing the hydraulic accumulators for the ILS (Independent link suspension). It's time to kick it into high gear and get this tractor done. More tractors are waiting Check out Rak'd Audio Ammo can bluetooth speakers https://www.getrakd.com Use promo code "ZK10" at checkout to get 10% off Want some ZK merch" [YouTube Link](https://youtube.com/watch?v=60iIszzQOyk) 2024-03-02T02:51Z 79K followers, 48.7K engagements "John Deere [----] will not move. CAN bus diagnostics This tractor had me stumped for a while. Took some serious diagnosing and testing to figure out what was crashing the CAN bus on this tractor. Engine would sometimes cutout or die and sometimes the transmission would default to neutral. Limited controllers would show up on the corner post display and there were no codes to follow. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career To buy the" [YouTube Link](https://youtube.com/watch?v=7km1yoly62o) 2024-06-14T17:00Z 91.9K followers, 71K engagements "How a Variable Pitch Fan Works Until It Doesnt 😬 John Deere X9 Trouble Ever wonder how a variable pitch fan works In this video I dig into a troublesome fan on a John Deere X9 [----] combine thats giving me all kinds of headaches. We go through: How the variable pitch fan system operates Electrical and hydraulic diagnostics Repair attempts and testing And ultimately the moment it explodes during disassembly 😳 Despite the deep dive the only solution was to order a brand-new fan. Sometimes the job throws you curveballsyou just have to roll with it. Go to https://buyraycon.com/zkmastertech to" [YouTube Link](https://youtube.com/watch?v=81vIq7e-3XI) 2025-02-07T18:49Z 92K followers, 27.6K engagements "We got a Shop Dog CBX Let's use it on a John Deere X9 [----] Check out https://www.shopdogindustries.comto see their full product line and learn more about the CBX. This thing is a total game changer In this video I'm going to give you the most in depth tour of a John Deere X9 combine on YouTube using the Shop Dog CBX to turn the separator and feeder house and inspect every inch. See how the Shop Dog CBX is game changer for all John Deere combine technicians working on S-Series X-Series and [--] series combines. By the end of the video you will have a good idea on how an X9 works and the" [YouTube Link](https://youtube.com/watch?v=BSpnbCKJZ7Q) 2024-08-10T00:00Z 87.3K followers, 53.8K engagements "The John Deere 9510R is back Time to get the turbo EGR cooler and exhaust manifold fixed right The 9510R made it through spring planting We were able to get the oil contamination in the cooling system under control with replacing the oil cooler (oil cooler tested bad) and the fan drives replaced so it could finish up this spring. The tractor had to finish spring with a terrible noise coming from the turbo an exhaust manifold leak and a cracked EGR cooler. With the weather window we had there was not enough time to stop and fix the rest. Now I can go back and fix it right. Got to replace the" [YouTube Link](https://youtube.com/watch?v=D5ISDf-wOm0) 2024-06-22T02:18Z 88.9K followers, 81.4K engagements "I got a new service truck [----] Ram [----] with a Stellar T-Max service body. To buy the Carpuride W903 go to https://carpuride.com/ref=zkmastertech and use coupon code "ZKMT" to get $50 off your purchase Carpuride on Amazon: https://www.amazon.com/dp/B0CJ26G15G/ref=cm_sw_r_as_gl_api_gl_i_dl_E9BS8265F2MEBCPPCTM2linkCode=ml2&tag=zethdawnayake-20 In this video I am going to be upgrading service trucks. Going from a [----] Ford F-350 with a readings service body to a new [----] Ram [----] with a Stellar Tax 1-11 crane body. Going to get all my tools switched over mount a drawer unit in organize all my" [YouTube Link](https://youtube.com/watch?v=DlNW89NF8Qo) 2024-02-09T14:38Z 87.4K followers, 110.4K engagements "Tractors Everywhere. and Theyre All Tore Apart 😱 Spring Prep Madness Begins Spring prep is in full swingand the shop is packed In this video: 🛠 I completely remove the aftertreatment system from a 9620RX to get it cleaned and back in shape. 🐭 Check out the damage on an S780 combine with a wiring harness chewed clean in half by miceand yep an 8400R with the same rodent problem on its transmission harness. 🔧 Patrick's busy tearing into an 8320R and I hit the road for a service call on a classic [----] and a Case IH [---] disc that needs some attention. Multiple tractors nonstop repairs and the" [YouTube Link](https://youtube.com/watch?v=H3onMiOqSDQ) 2025-03-14T12:00Z 96.2K followers, 52.5K engagements "John Deere 9R [---] Steering Issue Load Sense Leak Diagnosed + Q&A Got called out to troubleshoot a hard steering issue on a John Deere 9R [---]. After checking pressures and flow I traced the problem to a load sense leak in the steering circuit that was dropping pressure. Want to see the best of ZK MasterTech Check out my top repair and service videos here: https://youtube.com/playlistlist=PLhGcsfw6sbwx66pEkZpqLd_SF8jASNMgY&si=1aomfCy5TJ8d19kf Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with" [YouTube Link](https://youtube.com/watch?v=IraAm-IRsLE) 2024-12-20T18:00Z 92.4K followers, 40.6K engagements "Pure Grit: [----] ECU Hail Mary Electrical Gremlins & Wrenching Past Sundown. This ones all about pushing throughno matter what it takes. The saga of the John Deere [----] finally comes to a head with one last HAIL MARY: a new ECU and a sketchy benchtop reprogramming trick and it WORKED. The [----] is back from the dead and running strong. But no rest for the wearynext up is a 9560RT with starting issues. Quick diagnosis points to a failed low-pressure fuel pump and were back the next day to knock it out. Then the 8310RT throws a new curveballzero cab power. After chasing down hidden electrical" [YouTube Link](https://youtube.com/watch?v=JQW6Abd2SWs) 2025-05-24T14:00Z 103K followers, 46K engagements "Ask me anything Next video I'm going to do a Q&A" [YouTube Link](https://youtube.com/watch?v=Jf1D92avgCE) 2024-12-12T02:36Z 90.9K followers, [----] engagements "John Deere 8400T track tension cylinder repair Thanks to BRUNT for sponsoring this video Get $10 off your first purchase with a 30-day risk-free trial at https://brunt.yt.link/EXOHxIQ using code ZK10. In this video I've got a 8400T that is down because the track tension has loosened all the way due to a leaking tension cylinder. See the process of getting that cylinder in and out and reconditioned Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career" [YouTube Link](https://youtube.com/watch?v=Kur688RUkJU) 2024-09-27T18:54Z 87.1K followers, 43.2K engagements "John Deere S780 will not crank S670 & S770 transmission codes X9 track drive sprocket failure These next two videos are going to follow just one day in the life of ZK. This video we start things off with an S780 that sometimes will not crank and is having issues with the engine speed surging and header kicking out. Second service call I go look at an S670 that has an active transmission code. Got to love mice Third service call I go look at a brand spankin new S770 that will not go into gear or come out of park. Then my boss sends me a picture of an X9 with some serious track carnage. Want" [YouTube Link](https://youtube.com/watch?v=N9FJWaeikQA) 2024-10-04T17:00Z 89.1K followers, 42.8K engagements "Fuel Pump Failure DEF Issues & X9 Breakdowns Harvest Service Calls [----] Ep. [--] Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/CoYsW9u using code ZKMASTERTECH. This round of harvest service calls is packed with repairs across multiple machines. I start out with a John Deere S670 throwing a PTP code for the reverse pressure sensor on the ProDrive hydrostatic pump. After thats resolved its on to an S680 with a leaking separator drive hydraulic cylinder and then a 9370R with emissions codes. From there I check out a combine in the shop with a" [YouTube Link](https://youtube.com/watch?v=PzLGaQtMtCA) 2025-09-27T10:44Z 103K followers, 55.6K engagements "Update: The 9570RT is fixed Injectors fixed the issue. Check out the full video" [YouTube Link](https://youtube.com/watch?v=QvcLbXkQ9V4) 2025-05-22T02:42Z 103K followers, 18.3K engagements "EPIC John Deere Adventure 🚜 [----] X9 [----] 8RX [---] & More in One Video The legendary [----] is backand this time its got a weird SCV issue that needs tracking down. Then it's road trip time to a true John Deere paradise where I get hands-on with the tracks on an X9 [----] and update a few shiny 8RX 410's Next up: a service call for hydraulic leaks on an 8310R and a quick stop to diagnose a 6130R throwing a code thats shutting the engine down. 👉 Tons of green iron real-world diagnostics and serious wrenching in this one. Dont miss the original [----] video if you havent seen it yetthis story just" [YouTube Link](https://youtube.com/watch?v=SpUV7SjfY3w) 2025-03-22T02:44Z 96K followers, 52.4K engagements "John Deere 8370R IVT installation. (Part 4) It runs like a dream Now it's time to install the transmission back into the tractor and get everything put back together. Once we get everything back together and the hydraulic oil filled up we will perform the hydro flush procedure and replace the RU & CU control valves. Then we will get the oil hot and do a full IVT calibration. And after all that work has been accomplished we will finally get to take our maiden voyage. It runs like a dream Thank you for watching this series Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my" [YouTube Link](https://youtube.com/watch?v=TAAdSdaogwE) 2023-09-06T17:52Z 76.7K followers, 25.6K engagements "6125R IVT Transmission diagnostics 8370R Hydraulic diagnostics Go to https://buyraycon.com/zkmastertech to get 15% off your Raycon purchase plus free shipping Working on a 6125R IVT transmission with low lube and system pressure codes. See how I diagnose a leak in the system. Then I go work on a 8370R with a hard steering complaint. See how I diagnose low main pump system pressure and low steering stall pressure. BONUS CONTENT: Then after that I remove the cab roof of an S670 combine to replace the blower motor. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon" [YouTube Link](https://youtube.com/watch?v=U4jMRPlhsyI) 2024-07-13T00:47Z 92.1K followers, 38.8K engagements "9570R Field Fix 3046R fuel sender and a Shop Head-Scratcher on the 8360RT Back on the road with a quick service call to repair a DEF priming issue on a John Deere 9570R that I previously diagnosed. That job goes quickbut next up is something outside my usual horsepower range: a John Deere 3046R compact tractor with a faulty fuel sender. I usually stick to 200+ HP equipment but this one turns into a full-on tank removal to get the job done. Then its back at the shop where I dig into a new project: a John Deere 8360RT with hydraulic oil that's overheating. It's not a simple fixand I'm still" [YouTube Link](https://youtube.com/watch?v=UzqTNRX8V94) 2025-05-31T13:00Z 103K followers, 37.5K engagements "8R [---] Gets More Air AND a Smoother Ride Air Cleaner + Seat Fix Customer's been fighting with a clogged air filter every [--] days on this John Deere 8R [---] and Ive got the fix: a new upgraded air cleaner with a better pre-cleaner system to keep things running smoother longer. But thats not allthe Ultimate Seat isnt living up to its name. Some serious air line issues mean Ive got to pull the entire seat out of the cab to make it right. More air = more power. Fixed seat = better ride. Lets get to it. Want to see the best of ZK MasterTech Check out my top repair and service videos here:" [YouTube Link](https://youtube.com/watch?v=VdkMGmEwuRI) 2025-02-28T13:20Z 92.2K followers, 38.6K engagements "This [----] is testing my LAST nerve 😤 This [----] has been haunting me all spring. Camshaft and crankshaft sensor codes just keep coming back no matter what I do and now it's down to running new wires from the ECU. 🔧 Watch the full repair TONIGHT at 6:30PM central. If youve ever had a machine fight you every step of the way 👉 Hit that subscribe button and ride along #JohnDeere9530 #TractorRepair #DieselTech #ZKMastertech #FarmLife #GreenIron #SnapOnTools #MilwaukeeTools #MatcoTools #Shorts John Deere [----] John Deere tractor repair tractor problems tractor won't run tractor ECU codes camshaft" [YouTube Link](https://youtube.com/watch?v=_y0dWo2qCD8) 2025-04-18T23:05Z 103K followers, 28.2K engagements "Big Repairs Bigger Machines John Deere 8400R & 8R [---] Fixes Were back in the shop and back in the field First up: I finally get the cab reinstalled on the rodent-damaged John Deere 8400R. Then it's off to a customers farm to tackle some serious issues on a John Deere 8R 370a front MFWD output housing leak caused by loose bearings failed seals and sloppy ILS driveshafts. And thats not allthe right side needs attention too. After that I take on a problem at the RH rear inner dual where the tires dangerously close to punching a hole in the fuel tank. Time for a new bracket install and some tire" [YouTube Link](https://youtube.com/watch?v=au1RpjCi9pQ) 2025-04-12T02:41Z 103K followers, 69K engagements "620HP 15.0L Cummins fuel system diagnosis. (Part 2) Will we finally get the 9620R started The story finally continues. Got the tractor back in the shop for more diagnostics. In an earlier video diagnostics led to replacing the high pressure fuel injection pump. During the repair I noticed the inlet screen to the pump was clogged so I suspected a contaminated fuel system. Could not build enough rail pressure to start. Replacing the pump finally got the engine running but it would not start without ether and once it was running it was rough and smoking really bad. In this video we finally get" [YouTube Link](https://youtube.com/watch?v=bCMOqsT2s5U) 2024-01-27T02:20Z 87.5K followers, 42.4K engagements "2021 John Deere 9620RX sets multiple communication faults and speed is de-rated to [--] mph. Got a brand new John Deere 9620RX that is setting steering and communication fault codes and will only run [--] mph. Speed is de-rated. Problem is very intermittent which makes it very hard to diagnose. What do you do when the diagnostics lead you nowhere #johndeere #johndeere9620rx #johndeerewrenching #johndeereagtech #farmlife #johndeeretractorpower" [YouTube Link](https://youtube.com/watch?v=cJEC99sR7eo) 2021-04-13T01:21Z 97.2K followers, 99.8K engagements "Let's kick Spring [----] off right John Deere 9620RX QXS15 Cummins water pump repair. First tractor that broke down in the field for Spring [----] and it turned out to be a good one Water pump totally grenaded and sent metal into the cooling system. Will have to replaced the EGR cooler thermostat and flush the entire cooling system to make sure all the contamination is removed. #johndeere #johndeeretractor #cummins Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement" [YouTube Link](https://youtube.com/watch?v=d_1k3axywrk) 2024-04-14T22:09Z 79.9K followers, 65.7K engagements "John Deere S680 ProDrive: 5-Speed Feeder House Gear Case Failure & Full Tear Down Working on an S680 throwing a transmission supply pressure low code. Tracing the issue brought us to something Ive never seen fail before the 5-speed feeder house gear case. I always thought these things were bulletproof These gear cases have been in combines since the [--] Series and Ive never had to open one upuntil now. Want to see the best of ZK MasterTech Check out my top repair and service videos here: https://youtube.com/playlistlist=PLhGcsfw6sbwx66pEkZpqLd_SF8jASNMgY&si=1aomfCy5TJ8d19kf Want some ZK merch" [YouTube Link](https://youtube.com/watch?v=fL3apQP5dwA) 2025-01-11T15:35Z 95.9K followers, 44.9K engagements "The ULTIMATE fan drive upgrade Best way to improve your Vari-Cool fan drive John Deere [----] series In this video I am going to show you how and why you should upgrade your [----] series tractor Vari-Cool fan drive system. Are you tired of leaks fan speed codes and belt wear I have your answers in this video where I completely update a John Deere 9530T Vari-Cool fan drive system to the latest and greatest parts. You also might pick up some helpful repair tips and tricks along the way. #johndeere #johndeeretractor #johndeeretractorpower #tractor #agriculture #9530 CHECK OUT THE CERTIFIED WRENCH" [YouTube Link](https://youtube.com/watch?v=griXlL6nXPA) 2022-01-21T18:00Z 90.4K followers, 260.6K engagements "Fixing Everything: 9570R [----] 8R [---] [----] & Even My Truck This one's got it allinjector swaps regen problems coolant system tricks DEF pressure codes truck upgrades and even a hydraulic leak fix on my crane. I start with the John Deere 9570R thats been having constant regen issues. Diagnostics pointed to weak injectors so I tore into the QSX 15.0L Cummins and got new ones installed. Next up a John Deere [----] sprayer with an ECU [------] manifold temperature high code. After fighting a stuck radiator valve I used a neat trick the next morning to bleed the two-part cooling systemand got that" [YouTube Link](https://youtube.com/watch?v=i1ltgtlC83E) 2025-05-10T11:30Z 103K followers, 39.9K engagements "Harvest carnage updates and a John Deere 9620RX gets a new turbo. Got a lot of carnage stories to tell X9 hydrostat pump failure S790 transmission failure S670 looses both front left duals (Major carnage) and a X9 gets it's unloading auger damaged from a grain cart. After I give you the updates I will show you how to replace the VGT turbo on a 15.0L QSX Cummins in a John Deere 9620RX. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career" [YouTube Link](https://youtube.com/watch?v=j33Y3yQ6jfI) 2024-10-19T18:37Z 92.1K followers, 73.8K engagements "Worst air line to install ever Watch the full video on the channel. #johndeere #tools #farming" [YouTube Link](https://youtube.com/watch?v=jZgnTYz9HCc) 2025-03-01T03:35Z 90.7K followers, [----] engagements "AutoTrac FAILS on a 9R [---] and the [----] Wont Stop Throwing Codes 😤 This one tested my patience. I start the day with a 1.5-hour drive to look at a John Deere 9R [---] where AutoTrac isnt working. After checking over the system and diagnostics I track down the issue and quickly get it sorted. Nothing like driving [---] hours to fix it in [--] min But then. its off to a [----] that just wont quit giving me trouble. Its been throwing ECU camshaft and crankshaft position codes all spring and Ive tried everything. The codes keep coming back. Now there's only one move left: run new wires directly from the" [YouTube Link](https://youtube.com/watch?v=jz5aMDtvojc) 2025-04-18T23:30Z 103K followers, 48.8K engagements "X9 [----] variable speed feeder house drive and unload auger repair. In this video I finally get to fix a vibration that haunted me all harvest. Going to replace the feeder house drive sheave assembly and variable speed belt. Also while Ive got it in the shop Im going to repair the unload auger because it is not going into the cradle correctly and will not latch. #johndeere #mechaniclife #X91000 #farmlife #farming #milwaukeetools #snapontools Check out Rak'd Audio https://www.getrakd.com Use promo code "ZK10" at checkout to get 10% off Want some ZK merch https://zk-mastertech.myspreadshop.com/" [YouTube Link](https://youtube.com/watch?v=mnSovwLHa3I) 2024-01-05T13:00Z 87.6K followers, 58.6K engagements "Oops. S780 Took Out a Power Pole Auger & Swing Cylinder Fix Well it happens every year In this video I show you how we repaired a John Deere S780 combine after it tangled with a power poletaking out the horizontal unloading auger and swing cylinder in the process. Luckily the new crane truck made this job a whole lot easier. We walk through the damage the parts we replaced and how we got everything back in working order fast. Harvest is starting to wind downjust a little corn left out thereand tillage work is picking up. This one was a solid mid-season recovery job. 💬 Let me know in the" [YouTube Link](https://youtube.com/watch?v=o_VsVTrnrrA) 2024-11-09T12:02Z 92.2K followers, 66.8K engagements "John Deere 8310R ILS leak & Regeneration faults - Wrapping up harvest and field work Video sponsored by BRUNT: https://bruntworkwear.com/ZK10 use code "ZK10" for $10 off your first order of $60 or more In this video I've got a John Deere 8310R that has a major hydraulic leak on the ILS valve block and has regeneration faults. You will learn how to properly bleed the pressure down on the ILS fix the leak calibrate the ILS and learn what to look for when it will not complete a regeneration. Check out my merch store https://www.zk-mastertech.myspreadshop.com Interested in being a John Deere tech" [YouTube Link](https://youtube.com/watch?v=pi6zOxJ-YYE) 2022-12-06T18:28Z 87.4K followers, 67K engagements "John Deere S780 chopper damage. Thanks to BRUNT for sponsoring this video Get $10 off your first purchase with a 30-day risk-free trial at https://brunt.yt.link/OXtbGM2 using code ZK10. In this video I discovered some serious chopper and tailboard damage on an S780 combine after an inspection was performed. Three chopper hammers were found missing and the chopper started vibrating bad enough to start breaking the sheet metal of the chopper housing and tailboard housing. See what it takes to completely rebuild a chopper and powercast tailboard Want some ZK merch" [YouTube Link](https://youtube.com/watch?v=sJ-UhFong3U) 2024-08-16T12:01Z 89.7K followers, 72.8K engagements "Critical Repairs Before Harvest on this John Deere S790. Back at the shop with the John Deere S790 combine just [---] hours on it but already needing some serious attention. In this video I'm replacing the main hydraulic pump for a product improvement program leveling the concave fixing the sieve frame rubbing hard on the right-hand side centering the discharge beater to correct the belt drive alignment and doing a bunch of general maintenance to get it ready for harvest season. Stick around for a detailed walkthrough and honest assessment to keep this machine running strong. John Deere S790" [YouTube Link](https://youtube.com/watch?v=tRNq2bU7EpM) 2025-07-26T00:00Z 103K followers, 47.3K engagements "John Deere 9560RT Hard Start FIXED Timing Issues Injector Replacement & Pro Tips This John Deere 9560RT came into the shop with a long crank/hard start issue after sitting and it wasnt going away. We already replaced the low-pressure fuel pump in a previous video but the problem persisted. In this episode I take you through the deep-dive diagnostic process that led to the real root cause: leaking injectors bleeding off fuel pressure. But that wasnt all during injector replacement I discovered the engine wasnt in proper time The crank and cam timing pins wouldnt go in forcing a full teardown" [YouTube Link](https://youtube.com/watch?v=uTNwdahpgFI) 2025-07-12T12:01Z 103K followers, 75K engagements "🔥 Stubborn Bolt Battle on a Mint [----] + [----] SCV Update & 8360R Prep Kicking things off with a quick update on the John Deere [----] and its ongoing SCV issue. Then I head to the farm to check out a super clean low-hour [----] that needs a little TLC before spring. The main problem A broken exhaust manifold bolt that does not want to come out without a fight. After winning that battle I knock out a few smaller fixes before prepping to dive into a bigger job on the John Deere 8360R which is going to take a solid two days of work. Wrenching diagnostics and classic green ironthis ones got it all" [YouTube Link](https://youtube.com/watch?v=vu-G4wFhMaY) 2025-03-28T23:00Z 96.2K followers, 66.4K engagements "S680 5-Speed Gear Case Rebuild & Install Shifts Like Butter (Part 2) We finally got all the parts in to rebuild the 5-speed feeder house gear case on this John Deere S680. In this Part [--] video we walk through the full reassembly get it installed back into the combine and hook everything up. Want to see the best of ZK MasterTech Check out my top repair and service videos here: https://youtube.com/playlistlist=PLhGcsfw6sbwx66pEkZpqLd_SF8jASNMgY&si=1aomfCy5TJ8d19kf Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech" [YouTube Link](https://youtube.com/watch?v=zJI048FSuRQ) 2025-01-24T13:03Z 92.2K followers, 27.4K engagements "9620RX MAJOR Oil Leak + [----] Engine Lockup Harvest Service Calls [--] ✅ Its been one wild harvest and this round of service calls has everything from oil leaks to engine lockups First stop is a 9620RX with a MAJOR oil leak pouring from the front of the engine. Turns out the timing cover bolts came loose not something you see every day. Once thats sealed up and cleaned I head out to a 9RX [---] throwing low fuel pressure codes. A new set of filters fixes the problem but when I cut them open I find something you never want to see algae in the fuel system. Then I share the story of the previous day a" [YouTube Link](https://youtube.com/watch?v=2dpE5xjdabg) 2025-11-09T00:00Z 103K followers, 55.1K engagements "13.5L VGT turbo replacement on a John Deere 9510R Just got back to work after the 4th of July and the power is out at the shop so I am hitting the road to get some things done. Going to go do a VGT turbo replacement on a John Deere 9510R. When I get that done I give a little update on what's going on with the X9 [----] combine in the shop. Interested in becoming a Deere tech for Sloan's https://www.sloans.com/career Check out my merch store https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front Buy the tools I recommend https://www.amazon.com/shop/zkmastertech" [YouTube Link](https://youtube.com/watch?v=3y2q2k1vbFs) 2023-07-08T19:21Z 97.9K followers, 76.4K engagements "Overrev Regen Fails & Electrical Chaos Deere Diagnostics Madness In just one day I tackled five different John Deere machines with problems ranging from wild overrevving to regen issues and full-on electrical chaos. These are real-world issuesand real-world fixes. I kick off in the shop with a [----] surging to [----] RPM at startup. Then I head to a 9570R with a Cummins QSX15 dealing with frequent regenerations. That leads to a quick but revealing diagnostic. Back in the shop I trace down a short in the [----] only to get pulled into a hub build for a 2660VT. then out again to troubleshoot a 9460R" [YouTube Link](https://youtube.com/watch?v=7VmBD8QZgRw) 2025-04-25T23:30Z 103K followers, 51.1K engagements "X9 Repairs 8295R Axle Seals & 8235R Fan-to-Radiator Damage The spring rush is finally behind us and that means its time to bring the shop projects back in. In this video I head out to finish repairs on a John Deere X9 combine I inspected back in March replacing a feederhouse variable drive belt patching a worn-through clean grain elevator boot and checking off a few smaller jobs. Back at the shop weve got an 8295R that just sold and needs to be buttoned up. Service is done but the big job ahead is fixing a leaking [----] MFWD front axle seal. I also show a project Bens working on: an 8235R" [YouTube Link](https://youtube.com/watch?v=9yMx3LdtacI) 2025-06-14T00:59Z 103K followers, 34.9K engagements "John Deere X9 [----] track drive sprocket failure. Go to https://buyraycon.com/zkmastertech for 20-50% off sitewide Brought to you by Raycon On the previous video I got a call towards the end of the day about the drive sprocket falling off an X9. I went ahead and got it back together that evening so we could get it loaded up on a trailer the next day. We brought the customer another combine so he could keep rollin *Combine update: We converted this combine to [----] LSW tires because we could not get a final drive soon enough. Was not able to show this process sorry guys Want to see the best of" [YouTube Link](https://youtube.com/watch?v=AXwr8ln30xM) 2024-10-11T17:00Z 98.8K followers, 430K engagements "S790 Inspection Masterclass Everything You Need to Know This is the S790 Inspection Masterclass. In this video I take you through a full inspection of a John Deere S790 combine start to finish. Even though this machine only has [---] hours on it I still found more than I should have. Thats why it pays to be vigilant and check everything. Just because its low-hour doesnt mean its problem-free. Whether you're a seasoned operator experienced combine tech or new to S700 Series combines I break down exactly what to look for where issues hide and how to catch them before they cost you in the field." [YouTube Link](https://youtube.com/watch?v=A_z7sDm2JT8) 2025-06-28T12:00Z 103K followers, 35.7K engagements "✅ [--] NEW Must-Have Milwaukee Tools That Are Game Changers in the Ag Shop In this video I test out [--] NEW Milwaukee Tools that are absolute game changers for the Ag shop. Milwaukee sent me their latest gear the M12 Heated Hoodie with HEXON Heat Technology the M18 Precision Blower and the M12 Underbody Light and I put them to work in real farm and service truck conditions. Each of these tools brings something new to the table for Ag mechanics. The heated hoodie keeps you comfortable through long cold days the M18 blower makes cleanup fast and efficient and the M12 underbody light completely" [YouTube Link](https://youtube.com/watch?v=BKbx9YZ0clg) 2025-11-07T00:00Z 103K followers, 17.3K engagements "When you know the problem before even looking at it A couple moments of my newest video. Sometimes you know exactly whats wrong before you even get there. 8310R with hard steering when activating an SCV and a S780 combine with RC2 codes and the unloading auger will not swing" [YouTube Link](https://youtube.com/watch?v=CG8cWM5v4Ew) 2025-10-18T22:54Z 103K followers, 34.4K engagements "John Deere S680 Feeder House Floor Augers & Driveshaft Repairs + S790 service call Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/lZ2j90x or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support In this video Im out at a customers farm working on a John Deere S680. I start out replacing the feeder house floor and show you how it can be done by yourself with all the tips and tricks youll need. After that I quickly replace the middle and outer unload augers. The next morning I head out on my first harvest" [YouTube Link](https://youtube.com/watch?v=CN2qbvVplDQ) 2025-09-06T13:25Z 103K followers, 36.7K engagements "Massey On Fire + Deere Wont Start 😬 #farmequipment #harvest2025 #zkmastertech Crazy day in the field. Massey tractor fire. John Deere [----] issue. 9560R completely dead. Just another harvest service call. 💚🔥 Check out the full video now What's the craziest fire/harvest story that's happened to you #JohnDeere #FarmLife #Mechanic #Harvest #TractorRepair #ServiceCall #FarmTok #DieselPower #AgLife #MasseyFerguson #GreenIron #ZKMasterTech" [YouTube Link](https://youtube.com/watch?v=FZ1GAiAiLEY) 2025-10-28T01:59Z 103K followers, 36.3K engagements "Tractor Trouble: 8310RT Breakdown 8370R CAN Faults 9570RT Regen Issues 9100s Gone In this episode the [----] saga takes a surprise turn as we finally install a new fuel pumpand then get some good news about its future. From there its straight into the heat with a roadside 8310RT that mysteriously wont move. until it does. I track down a couple hydraulic leaks and run tests but no hard fault found. Next up: a quick but critical fix on an 8370R with CAN bus gremlins traced back to the cab wiring. Then its back to the shop for an update on the 9100its outta here I wrap things up with a deep-dive" [YouTube Link](https://youtube.com/watch?v=HZiMDtgxKdg) 2025-05-17T00:15Z 103K followers, 43.6K engagements "8295R [----] MFWD Axle Seal Replacement + [----] Rescue Mission In this video I start repairs on a John Deere 8295R with a leaking axle seal on the [----] MFWD front axle. I remove the final drive and knuckle but before I can finish the job I get called out to rescue a John Deere [----] thats dead in the fieldno hydraulics no transmission and stuck in a ditch. I get it loaded on a semi and hauled back to the shop. Then its back to the 8295R to wrap up the axle seal job and get it back together. Field breakdowns heavy repairs and real-world problem solvingjust another day keeping that green iron" [YouTube Link](https://youtube.com/watch?v=KxioQEaoz2Q) 2025-07-04T12:00Z 103K followers, 171.5K engagements "John Deere 8370R has a major hydraulic oil leak. Getting the job done with the Stellar T-MAX In this video I will be repairing a couple hydraulic oil leaks on a Deere 8370R. Going to have to remove the duals to get access to a blown hose. Got to love hydraulic oil leaks on tractors in the spring time #johndeere #johndeeretractor #johndeere8r @StellarIndustries Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career To buy the Carpuride W702 for a" [YouTube Link](https://youtube.com/watch?v=QZ4ppWtP-vE) 2024-05-26T01:25Z 98K followers, 101.6K engagements "Farm Progress Show [----] New MONSTER 9RX [---] + Game-Changing S780 Repair Tips I finally made it to the Farm Progress Show in Decatur IL and this year I was set up in the Sloan Implement / Sloan Express booth It was my first ever public appearance since starting this YouTube channel and it was awesome getting to meet so many of you in person. Thanks to everyone who stopped by to talk shop pick up some merch and support the channel. While I was there I had a chance to connect with a few great companies: Kampag the makers of the new high-performance feed accelerator upgrade kit for S-Series" [YouTube Link](https://youtube.com/watch?v=TnHLKp0sQO8) 2025-08-30T12:00Z 103K followers, 29.4K engagements "John Deere S680 ProDrive hydrostatic pump failure. In this video I finally get to do the repairs on the John Deere S680 combine that suffered a hydrostatic pump failure in the field. I recovered this combine from the field and had it hauled back to the shop. We cannot run the engine on this combine because the pump is locked up. A pump failure of this magnitude is probably the worst hydraulic failure you can have on a combine Theres just metal everywhere I am going to have to replace a lot of parts to get this combine to move again. This is one of the most time consuming jobs you can do on a" [YouTube Link](https://youtube.com/watch?v=XTi1EIrLTUo) 2022-02-05T13:57Z 97.9K followers, 151.8K engagements "The [----] Refuses to Run and the 8Rs Fan Goes Full Turbo The John Deere [----] saga continues After running new wires from the injection pump to the ECU Im still chasing down the issueand now its worse than ever. Then I jump over to one of my favorites: a John Deere 8R [---]. I break down how the new electronic viscous fan clutch works diagnose an electrical fault that's sending the fan to full RPM and replace the failed clutch. Back in the shop its time to pull the 9100s pump and send it to the pump shop for internal harness repairs. Finally I show off a new 4000-watt inverter for my RAM service" [YouTube Link](https://youtube.com/watch?v=ZEGjbpXjdHc) 2025-05-03T01:00Z 103K followers, 41.6K engagements "The path of the kernel explained See how a combine works The path of the kernel is a lesson I give to every technician I train on combines. Understanding the path the grain takes and how the combine separates the grain from residue is an important thing to know as a technician. Also I will show you the new technology on the John Deere S780 combine that helps the operator achieve the optimal grain quality. I will also explain how the combine calculates yield data in real time. At the end of the video I will show off a cool new Milwaukee M18 transfer pump that I bought that is going to make my" [YouTube Link](https://youtube.com/watch?v=aW_-ek8zsNs) 2023-04-07T15:18Z 98K followers, 115.4K engagements "Game-Changing Upgrade for John Deere S790 Sloan Express Feed Accelerator Install 🚨 MASSIVE COMBINE UPGRADE ALERT S790 GETS A POWER BOOST 🚨 In this video we're upgrading a John Deere S790 with the new High-Performance Wide Body Feed Accelerator Kit from Sloan Express and Im walking you through the full install step-by-step. 🔗 Order the Sloan Express Feed Accelerator Kit here: https://www.sloanex.com/combine-high-performance-feed-accelerator-kit-fits-john-deere.html This isnt just a parts swap this is a serious performance upgrade field-tested in over [----] combines worldwide and now" [YouTube Link](https://youtube.com/watch?v=b25y2KppWIg) 2025-07-19T00:00Z 103K followers, 44.5K engagements "One day we won't need operators in the driver's seat New X9 with ultimate technology package In this video I start with a quick update on the John Deere S770 combine Ive been working on and finally track down the issue with the feeder house speed adjustment. Then its off to a service call on a John Deere 9410R that wont throttle up before checking in back at the shop where Macen is tearing into a big 9.0L overhaul project on a [----] STS combine. To wrap things up I get to show off the all-new [----] John Deere X9 [----] with the Ultimate Technology Package I go over the predictive ground speed" [YouTube Link](https://youtube.com/watch?v=d1zIW5-GUNE) 2025-08-23T12:01Z 103K followers, 44.8K engagements "John Deere 8R series SCV coupler repairs. In this video I will show you how to replace the SCV couplers on an John Deere 8R tractor. These style couplers have been used for a long time and you can use this repair process for a variety of tractors like the [----] series [----] series 8R and 9R tractors. The tractor that I am repairing is a John Deere 8370R that I previously did work on. Took awhile to get the SCV couplers in so I am just now getting to put them in. Plus stick around for the bonus content of this video I will show you how to check grain loss monitor sensors in a John Deere S680" [YouTube Link](https://youtube.com/watch?v=f-3_wt8rQGs) 2022-08-28T14:16Z 99.7K followers, 54.5K engagements "John Deere X9 variable pitch fan video out now" [YouTube Link](https://youtube.com/watch?v=hdVxa7QKF1A) 2025-02-20T04:48Z 91.1K followers, [----] engagements "Learn how to inspect a John Deere S-Series Combine Learn how to inspect a John Deere S-Series Combine like a pro In this video we have an S670 combine and I'll cover what things to check for when inspecting an S-Series combine. #johndeere #s670 #s-seriescombines #harvest Music from soundstripe Code: 3OL0JGATUPZ2WM9W" [YouTube Link](https://youtube.com/watch?v=j1Dq5cWUm-o) 2021-08-15T17:09Z 98.5K followers, 124K engagements "John Deere [----] water pump disaster (Part 2) The work is just beginning on the [----]. Now that the engine has been condemned its time to start rebuilding the complete block assembly. #johndeere #johndeere9430 #johndeerewrenching #johndeereagtech #johndeeretractorpower" [YouTube Link](https://youtube.com/watch?v=mCV1KthYfk4) 2021-04-02T13:02Z 99.8K followers, 156.4K engagements "9R breakdowns & S670 engine Backfires Through the Intake Shes About to Blow It starts off innocent enough just a 9570R setting an ECM [-------] Intake NOx Sensor Fault and a [------] Low Fuel Pressure Code. I fix those issues and think the days turning around but its not. This video takes you through one of the craziest chains of breakdowns Ive had in a while: The 9570R gets new filters and a NOx sensor to clear its codes. My new shop project a 9510R comes in with both the EGR cooler and oil cooler failed coolant and soot contamination everywhere. Rain sends me indoors to rebuild and flush that" [YouTube Link](https://youtube.com/watch?v=pZoX6kLlbpY) 2025-11-01T20:00Z 103K followers, 82.5K engagements "John Deere S790 sieve frame replacement & discharge beater fix perfect shoe alignment achieved Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/0UzfBF0 or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support Back on the John Deere S790 This time Im finishing the sieve frame repairs. I remove the sieve frame replace the side sheets and square everything up perfectly. Before reinstalling I tackle a discharge beater thats off-center in the machine. Even with the aggression level at [--] it wouldnt budge I had to cut" [YouTube Link](https://youtube.com/watch?v=sXb9VNL4A68) 2025-08-02T12:32Z 103K followers, 35.2K engagements "Rear Drive GONE 9RX Would Only Pull With the Front Tracks Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/FjvboEk using code ZKMASTERTECH. Milwaukee M12 1/2" Stubby Impact Kit: https://www.homedepot.com/p/Milwaukee-M12-FUEL-12V-Li-Ion-Brushless-Cordless-Stubby-1-2-in-Impact-Wrench-Kit-w-1-5-0Ah-1-2-5-Ah-High-Output-Batteries-2563-22/331534715 This one launches HARD right out of the gate. We kick off Harvest [--] Service Calls Episode [--] with a 9RX [---] thats only got the front tracks pulling and a code for extremely low axle lube pressure. A" [YouTube Link](https://youtube.com/watch?v=wOk67GQN_ZE) 2025-11-22T15:01Z 103K followers, 71K engagements "⚠ S780 wont swing unloading auger 💪 8310R hard steering 🔥 The X9 Strikes Again In this episode of Harvest Service Calls I start with an 8310R thats got steering issues traced back to blown O-rings in the priority valve. Then its back to the X9 1000yep replacing that unloading auger swing cylinder again after the cushioning seals got damaged. After that I tackle an S780 combine with RC2 controller faults that keep the auger from swinging out and show how to correctly replace and protect those Cinch terminals. Finally I get back on the X9 project to install the center unloading auger and take" [YouTube Link](https://youtube.com/watch?v=wmjkYb5ogSY) 2025-10-18T11:01Z 103K followers, 46.3K engagements "9620R QSX15 Cummins died and will not start. (Part 1) Got a John Deere 9620R with a QSX15 Cummins that was getting ECU stop codes for DPF and SCR temperatures extremely high then it died like it ran out of fuel and will not restart. Got to get this tractor up and running so we can at least get it back to the shop for further repairs. Diagnosis led to replacing the high pressure fuel pump so Josh and I are going to head out there and get the pump replaced and see if we can get this beast back alive. #johndeere #johndeeretractor #qsx15 #cummins #cumminspower #johndeerewrenching Follow me on" [YouTube Link](https://youtube.com/watch?v=xXwhBeXK9-w) 2023-11-24T15:38Z 98.7K followers, 148.5K engagements "Service Call CHAOS 😳 Massey Fire + Dead 9R in the Woods Harvest [--] #7 Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/GdPPrnW using code ZKMASTERTECH. #zkmastertech #farmequipment #harvest2025 In this episode of Harvest [--] Service Calls 00:00 🚒 Fire Tease Massey emergency 00:34 🧠 John Deere [----] Camshaft position fault diagnosis 05:40 🔧 [----] Twisted pair signal wire repair (EMI issue) 08:22 📉 S780 Feederhouse 5-speed clutch smoked (trans pressure low) 10:04 🌬 [----] STS ECU [-------] charge air leak + 9570R low DEF dosing pressure 13:36 🛑" [YouTube Link](https://youtube.com/watch?v=zL8OJybQlFY) 2025-10-25T20:00Z 103K followers, 88.8K engagements "Come meet me at the National Farm machinery show Sloan Express booth [----] #nfms" [YouTube Link](https://youtube.com/watch?v=klVPprbNYYk) 2026-02-14T13:25Z 103K followers, [----] engagements "Hydraulic Nightmare This John Deere [----] Had ZERO Oil Pressure What started as a simple service call on a John Deere [----] that wouldnt start quickly turned into a full hydraulic nightmare. After getting the tractor running and driving it I found it had zero hydraulics and absolutely no charge pressure. The tractor was hauled back to the shop for further diagnosis and things only got worse from there. During testing there was no charge pressure and not even a drop of oil coming out of the charge pump outlet. After draining the oil and removing the sump screen the problem became clear the" [YouTube Link](https://youtube.com/watch?v=3ZD_C01dj9g) 2026-02-13T20:00Z 103K followers, 34.6K engagements "Major Failure Inside This S780 [--] Speed Feeder House Gear Case Last harvest season this John Deere S780 combine came to a stop in the field with low transmission supply pressure. Field diagnostics led to a failure inside the [--] speed feeder house gear case specifically the C91 (first gear) clutch. After the season ended the customer brought the combine into the shop so the machine could be torn down and repaired properly. In this video the combine is brought into the shop and disassembled for repair. The duals and gull wing door had to be removed for access along with drive shafts hydraulic" [YouTube Link](https://youtube.com/watch?v=rsMAerlXS_A) 2026-02-07T21:00Z 103K followers, 44.2K engagements "After Everything This [----] Went Through This Is the Moment This is the final chapter of the John Deere [----] engine saga. After a catastrophic engine failure and draining oil full of bearing material this tractor has been torn down rebuilt and put back together one system at a time. Today is the moment where everything comes together or doesnt. There are no guarantees at this stage. After everything this tractor has been through it all comes down to one turn of the key. In this video I walk through installing the replacement engine reconnecting the fuel system cooling system charge air wiring" [YouTube Link](https://youtube.com/watch?v=P8ga9uBrVPY) 2026-01-31T21:00Z 103K followers, 41.7K engagements "Replacing a Failed 12.5L John Deere [----] Complete Block Build This John Deere [----] didnt just need parts it needed a second chance. In this video I take a completely failed 12.5L engine and build a brand-new complete block assembly from the stand up showing every critical step along the way. The original engine failure was caused by a failed water pump that allowed coolant to intrude into the engine oil which led to main bearing failure and rapid internal engine damage. This was not operator error or neglect once coolant contamination occurs bearing damage can escalate quickly and replacement" [YouTube Link](https://youtube.com/watch?v=XtpVJhMjTYY) 2026-01-24T20:30Z 103K followers, 58.9K engagements "The Most Optioned $1M John Deere X9 Full Inspection Back at the farm with one of the most impressive machines Ive ever inspected a brand-new John Deere X9 [----] thats only run one season equipped with the Ultimate Technology Package and literally every option Ive ever seen. This is a true million-dollar combine and in this video I walk through a complete front-to-back inspection showing exactly what I look for on an X9 and the key areas that deserve extra attention. Using the Shop Dog Industries CBX combine turning tool I break this machine down section by section feederhouse tracks residue" [YouTube Link](https://youtube.com/watch?v=G7ZiUcPlYa0) 2026-01-17T16:00Z 103K followers, 33.5K engagements "X9 Shop Repairs & a Look at a $1M X9 X9 shop repairs: clean grain elevator overhaul + cleaning fan belt & sheave maintenance. Plus a quick look at a $1M X9 [----] and a [----] engine surprise back at the shop. We kick this one off with a quick [----] update (and a teaser of whats coming) then dive straight into the X9 clean grain elevator work: paddle chain removal belt de-tension top sprocket chain install and lower auger install. From there I tighten everything back up and move into the cleaning fan drive belt driven sheave oil change and fan belt install. We also run into a midfloor issue that" [YouTube Link](https://youtube.com/watch?v=NSCi0n3FCCg) 2026-01-10T16:00Z 103K followers, 52.7K engagements "Worst Equipment Carnage I've Ever Seen This video is a compilation of the worst equipment carnage Ive seen real-world failures caught during diagnostics in both the field and the shop. From catastrophic engine damage and transmission failures to hydrostatic pumps completely puking their guts out to failed axle bearings a harness fire and machines instantly taken out of service this video shows what failure actually looks like when it happens for real. This compilation pulls together failures from dozens of different machines across multiple model lines tractors combines and harvest equipment" [YouTube Link](https://youtube.com/watch?v=98Qn0zUlc-8) 2026-01-03T16:00Z 103K followers, 92.6K engagements "Oil Pressure Was In Spec Then This [----] Engine Destroyed Itself This is a follow-up to the John Deere [----] with a 12.5L engine that suffered a catastrophic engine failure after a water pump failure allowed coolant into the crankcase. The water pump was replaced the crankcase flushed oil and filters changed and oil pressure checked. Everything looked acceptable on paper. This video is part of the Winter Shop Projects series (Episode 4). Cold oil pressure was strong. Hot oil pressure was lower but still within minimum specification. To fully evaluate it under load we took the tractor to the" [YouTube Link](https://youtube.com/watch?v=Xc2NXobIquE) 2025-12-29T21:00Z 103K followers, 119.1K engagements "We Put It Back Together Did This 9.0L Survive Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/PKfEl6p using code ZKMASTERTECH. Before tearing into reassembly heres some background on why this engine was removed in the first place. This John Deere S670 came in with a running issue that led to finding a failed intake valve. What started as a single component failure had the potential to cause major engine damage if it was put back into service. To be absolutely sure there were no additional issues hiding below the surface the decision was made" [YouTube Link](https://youtube.com/watch?v=6dvK_GAb600) 2025-12-20T21:00Z 103K followers, 45.7K engagements "Small Problem HUGE Repair Intake Valve Failure on a 9.0L We start off with a look at the intake valve failure on the 9.0L engine out of the S670 combine. Before this engine can go back into the machine I dig into replacing the water pump and the leaking main engine gear case input shaft seal. Once thats handled we shift gears while waiting on the cylinder head to return from the machine shop. Next up is an X9 [----] clean grain auger repair back at the shop. And then the next morning its time to brave the cold. I throw on the gear and head out to a Bron [---] tile plow throwing DEF system faults." [YouTube Link](https://youtube.com/watch?v=vU5hOXr3ZA8) 2025-12-13T21:00Z 103K followers, 60.1K engagements "S670 Engine REMOVAL & Tear-Down You Wont Believe What I Found Inside I just reached 100K subscribers and I want to thank every single one of you for helping me get here. Your support means more than you know. Now we dive into a brand-new series: [----] Winter Shop Projects. First up is a John Deere S670 I looked at this fall that was throwing an intake manifold air temperature high code and derating the engine. During my initial diagnosis I suspected an intake valve issue around cylinder [--] based on the compression noise in the intake and how fast the sensor was heating. We had the combine" [YouTube Link](https://youtube.com/watch?v=HqGQP0KhsrA) 2025-12-06T21:00Z 103K followers, 106.4K engagements "The [----] That REFUSES to Run Today was a big diagnostic day in the shop. The main issue A John Deere [----] that starts runs for a few seconds and dies until it finally goes completely dead. This wasnt a battery issue. This was electronic: CAN power grounds relays ECU failure and everything in between. Follow along as I test trace and finally track down the culprit. Also included in this video: Diagnosing a 9620RX that wont throttle up Full road test after verifying active codes Replacing the DEF dosing unit on the 9620RX Swapping and programming the ECU on the [----] Cold-weather gear-up segment" [YouTube Link](https://youtube.com/watch?v=VXwLxwzudl8) 2025-11-30T00:00Z 103K followers, 85.2K engagements "Rear Drive GONE 9RX Would Only Pull With the Front Tracks Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/FjvboEk using code ZKMASTERTECH. Milwaukee M12 1/2" Stubby Impact Kit: https://www.homedepot.com/p/Milwaukee-M12-FUEL-12V-Li-Ion-Brushless-Cordless-Stubby-1-2-in-Impact-Wrench-Kit-w-1-5-0Ah-1-2-5-Ah-High-Output-Batteries-2563-22/331534715 This one launches HARD right out of the gate. We kick off Harvest [--] Service Calls Episode [--] with a 9RX [---] thats only got the front tracks pulling and a code for extremely low axle lube pressure. A" [YouTube Link](https://youtube.com/watch?v=wOk67GQN_ZE) 2025-11-22T15:01Z 103K followers, 71K engagements "It Ate Something BAD 💥 Shop Carnage + Harvest Fixes The harvest just wont end and neither do the breakdowns. We start by rescuing a [----] with a locked-up enginewinching it onto a drop-deck with an 8R doing the pulling and steering hoses to snake it onto a trailer it barely fits. Then its an S790 with a DEF dosing pressure fault (bad pressure sensor in the dosing unit). Swap the sensor back to combining corn. Next an 8R [---] with no cab heatdiagnostics point to a stuck-closed water valve (temperature actuator). Fixed and warm again. On to an S780 thats losing prime all fall and hates cold" [YouTube Link](https://youtube.com/watch?v=KehyUOcJh5c) 2025-11-15T15:00Z 103K followers, 83.8K engagements "9620RX MAJOR Oil Leak + [----] Engine Lockup Harvest Service Calls [--] ✅ Its been one wild harvest and this round of service calls has everything from oil leaks to engine lockups First stop is a 9620RX with a MAJOR oil leak pouring from the front of the engine. Turns out the timing cover bolts came loose not something you see every day. Once thats sealed up and cleaned I head out to a 9RX [---] throwing low fuel pressure codes. A new set of filters fixes the problem but when I cut them open I find something you never want to see algae in the fuel system. Then I share the story of the previous day a" [YouTube Link](https://youtube.com/watch?v=2dpE5xjdabg) 2025-11-09T00:00Z 103K followers, 55.1K engagements "✅ [--] NEW Must-Have Milwaukee Tools That Are Game Changers in the Ag Shop In this video I test out [--] NEW Milwaukee Tools that are absolute game changers for the Ag shop. Milwaukee sent me their latest gear the M12 Heated Hoodie with HEXON Heat Technology the M18 Precision Blower and the M12 Underbody Light and I put them to work in real farm and service truck conditions. Each of these tools brings something new to the table for Ag mechanics. The heated hoodie keeps you comfortable through long cold days the M18 blower makes cleanup fast and efficient and the M12 underbody light completely" [YouTube Link](https://youtube.com/watch?v=BKbx9YZ0clg) 2025-11-07T00:00Z 103K followers, 17.3K engagements "9R breakdowns & S670 engine Backfires Through the Intake Shes About to Blow It starts off innocent enough just a 9570R setting an ECM [-------] Intake NOx Sensor Fault and a [------] Low Fuel Pressure Code. I fix those issues and think the days turning around but its not. This video takes you through one of the craziest chains of breakdowns Ive had in a while: The 9570R gets new filters and a NOx sensor to clear its codes. My new shop project a 9510R comes in with both the EGR cooler and oil cooler failed coolant and soot contamination everywhere. Rain sends me indoors to rebuild and flush that" [YouTube Link](https://youtube.com/watch?v=pZoX6kLlbpY) 2025-11-01T20:00Z 103K followers, 82.5K engagements "Massey On Fire + Deere Wont Start 😬 #farmequipment #harvest2025 #zkmastertech Crazy day in the field. Massey tractor fire. John Deere [----] issue. 9560R completely dead. Just another harvest service call. 💚🔥 Check out the full video now What's the craziest fire/harvest story that's happened to you #JohnDeere #FarmLife #Mechanic #Harvest #TractorRepair #ServiceCall #FarmTok #DieselPower #AgLife #MasseyFerguson #GreenIron #ZKMasterTech" [YouTube Link](https://youtube.com/watch?v=FZ1GAiAiLEY) 2025-10-28T01:59Z 103K followers, 36.3K engagements "Service Call CHAOS 😳 Massey Fire + Dead 9R in the Woods Harvest [--] #7 Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/GdPPrnW using code ZKMASTERTECH. #zkmastertech #farmequipment #harvest2025 In this episode of Harvest [--] Service Calls 00:00 🚒 Fire Tease Massey emergency 00:34 🧠 John Deere [----] Camshaft position fault diagnosis 05:40 🔧 [----] Twisted pair signal wire repair (EMI issue) 08:22 📉 S780 Feederhouse 5-speed clutch smoked (trans pressure low) 10:04 🌬 [----] STS ECU [-------] charge air leak + 9570R low DEF dosing pressure 13:36 🛑" [YouTube Link](https://youtube.com/watch?v=zL8OJybQlFY) 2025-10-25T20:00Z 103K followers, 88.8K engagements "When you know the problem before even looking at it A couple moments of my newest video. Sometimes you know exactly whats wrong before you even get there. 8310R with hard steering when activating an SCV and a S780 combine with RC2 codes and the unloading auger will not swing" [YouTube Link](https://youtube.com/watch?v=CG8cWM5v4Ew) 2025-10-18T22:54Z 103K followers, 34.4K engagements "⚠ S780 wont swing unloading auger 💪 8310R hard steering 🔥 The X9 Strikes Again In this episode of Harvest Service Calls I start with an 8310R thats got steering issues traced back to blown O-rings in the priority valve. Then its back to the X9 1000yep replacing that unloading auger swing cylinder again after the cushioning seals got damaged. After that I tackle an S780 combine with RC2 controller faults that keep the auger from swinging out and show how to correctly replace and protect those Cinch terminals. Finally I get back on the X9 project to install the center unloading auger and take" [YouTube Link](https://youtube.com/watch?v=wmjkYb5ogSY) 2025-10-18T11:01Z 103K followers, 46.3K engagements "X9 Turbo Leak S780 Transmission and separator clutch Failure X9 hits a pole with unloading auger Thanks to Rakd Audio for sponsoring this video Go to https://getrakd.com and use discount code ZK10 to get 10% off your purchase on the new V2.1 Bluetooth speaker In this episode of Harvest [----] Service Calls [--] the week starts out with an X9 combine thats leaking coolant out of the turbo box on the big 13.6L engine. Then its back to the shop where I show off my brand new Rakd Audio Bluetooth Ammo Can Speaker this things built tough and sounds awesome. Next up I dig into an S780 in the shop thats" [YouTube Link](https://youtube.com/watch?v=3boNwPg86pc) 2025-10-11T11:00Z 103K followers, 48.3K engagements "8RX [---] track 9360R Radiator X9 Issues & S780 Electrical Gremlins Harvest [----] Service Calls [--] In Harvest [----] Service Calls [--] its another packed round of field and shop repairs during one of the busiest times of the year. The day kicks off with a John Deere S660 throwing a fuel dosing inlet pressure fault. Then its on to a 9360R with a leaking radiator and an X9 [----] with a bad unloading auger latch assembly. Next up an S780 in the field develops strange electrical issues traced to bad grounds and a software glitch. An S680 rolls in with a shredded chopper jackshaft belt a leaking grain" [YouTube Link](https://youtube.com/watch?v=iihR7dLnDV0) 2025-10-04T11:30Z 103K followers, 50K engagements "Fuel Pump Failure DEF Issues & X9 Breakdowns Harvest Service Calls [----] Ep. [--] Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/CoYsW9u using code ZKMASTERTECH. This round of harvest service calls is packed with repairs across multiple machines. I start out with a John Deere S670 throwing a PTP code for the reverse pressure sensor on the ProDrive hydrostatic pump. After thats resolved its on to an S680 with a leaking separator drive hydraulic cylinder and then a 9370R with emissions codes. From there I check out a combine in the shop with a" [YouTube Link](https://youtube.com/watch?v=PzLGaQtMtCA) 2025-09-27T10:44Z 103K followers, 55.6K engagements "Major Combine Repairs in the Heat of Harvest Good ol' [--] Series combine Got to love it Its harvest season which means the service calls dont stop. In this video I cover a full round of combine repairs diagnostics and field fixes: Update on the John Deere S790 getting a complete cleaning shoe rebuild in the shop Service call on an S780 throwing emissions codes diagnosed a bad aftertreatment temp module replaced it and ran a regen John Deere [----] with a bad header lift control valve that left the header stuck on the ground S680 with a grain tank cover and fountain auger fold problem S7800 with" [YouTube Link](https://youtube.com/watch?v=KouDEDEui48) 2025-09-20T12:35Z 103K followers, 67.7K engagements "Chasing Harvest Breakdowns Service Calls Across Multiple Days (EP. 1) Kicking off my brand-new series Harvest [----] Service Calls 🌽🚜 Over the course of several busy harvest days I hit the road to tackle a wide variety of breakdowns diagnostics and repairs. Each day brings something different and you never know where the next call will take me. We start with an update on the S680 Ive been working on then head out to a John Deere S670 with a banging noise in the cleaning shoe. The pre-cleaner was about ready to fall out causing damage to the pre-cleaner chaffer and sieve elements all of which" [YouTube Link](https://youtube.com/watch?v=dJ5D8fcTDnA) 2025-09-13T01:20Z 103K followers, 32.8K engagements "John Deere S680 Feeder House Floor Augers & Driveshaft Repairs + S790 service call Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/lZ2j90x or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support In this video Im out at a customers farm working on a John Deere S680. I start out replacing the feeder house floor and show you how it can be done by yourself with all the tips and tricks youll need. After that I quickly replace the middle and outer unload augers. The next morning I head out on my first harvest" [YouTube Link](https://youtube.com/watch?v=CN2qbvVplDQ) 2025-09-06T13:25Z 103K followers, 36.7K engagements "Farm Progress Show [----] New MONSTER 9RX [---] + Game-Changing S780 Repair Tips I finally made it to the Farm Progress Show in Decatur IL and this year I was set up in the Sloan Implement / Sloan Express booth It was my first ever public appearance since starting this YouTube channel and it was awesome getting to meet so many of you in person. Thanks to everyone who stopped by to talk shop pick up some merch and support the channel. While I was there I had a chance to connect with a few great companies: Kampag the makers of the new high-performance feed accelerator upgrade kit for S-Series" [YouTube Link](https://youtube.com/watch?v=TnHLKp0sQO8) 2025-08-30T12:00Z 103K followers, 29.4K engagements "One day we won't need operators in the driver's seat New X9 with ultimate technology package In this video I start with a quick update on the John Deere S770 combine Ive been working on and finally track down the issue with the feeder house speed adjustment. Then its off to a service call on a John Deere 9410R that wont throttle up before checking in back at the shop where Macen is tearing into a big 9.0L overhaul project on a [----] STS combine. To wrap things up I get to show off the all-new [----] John Deere X9 [----] with the Ultimate Technology Package I go over the predictive ground speed" [YouTube Link](https://youtube.com/watch?v=d1zIW5-GUNE) 2025-08-23T12:01Z 103K followers, 44.8K engagements "John Deere S770 Combine Major Feederhouse Rebuild Hydraulic Fixes & PowerCast Upgrades Back on the John Deere S770 combine for a full round of inspections repairs and upgrades. What started as a simple grease seal issue on the variable speed feederhouse drive turned into a complete rebuild with multiple new parts and a full reassembly including a step-by-step on putting the upper variable back together and adjusting the speed correctly. Other repairs and upgrades in this video include: Replacing the broken shoe auger drive bearing Vertical auger gearbox rebuild & auger replacement Installing" [YouTube Link](https://youtube.com/watch?v=sHr-7avLCZ4) 2025-08-16T12:01Z 103K followers, 35.2K engagements "First Look: John Deere S7 [---] Through a Master Technicians Eyes In this video I take you on my very first master technician walkthrough of the all-new John Deere S7 [---] combine. Forget the usual salesman tour this is a deep dive into the nuts and bolts of every upgrade Deere packed into this machine. From the redesigned cab and powerhouse engine to next-level cleaning systems and cutting-edge electronics I break down all the real improvements and share my honest unfiltered opinion. This is the very first S7 combine Ive had the chance to check out so youre getting my raw first reactions to" [YouTube Link](https://youtube.com/watch?v=qJCPB9Et5p0) 2025-08-09T11:42Z 103K followers, 72.3K engagements "John Deere S790 sieve frame replacement & discharge beater fix perfect shoe alignment achieved Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/0UzfBF0 or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support Back on the John Deere S790 This time Im finishing the sieve frame repairs. I remove the sieve frame replace the side sheets and square everything up perfectly. Before reinstalling I tackle a discharge beater thats off-center in the machine. Even with the aggression level at [--] it wouldnt budge I had to cut" [YouTube Link](https://youtube.com/watch?v=sXb9VNL4A68) 2025-08-02T12:32Z 103K followers, 35.2K engagements "Critical Repairs Before Harvest on this John Deere S790. Back at the shop with the John Deere S790 combine just [---] hours on it but already needing some serious attention. In this video I'm replacing the main hydraulic pump for a product improvement program leveling the concave fixing the sieve frame rubbing hard on the right-hand side centering the discharge beater to correct the belt drive alignment and doing a bunch of general maintenance to get it ready for harvest season. Stick around for a detailed walkthrough and honest assessment to keep this machine running strong. John Deere S790" [YouTube Link](https://youtube.com/watch?v=tRNq2bU7EpM) 2025-07-26T00:00Z 103K followers, 47.3K engagements "Game-Changing Upgrade for John Deere S790 Sloan Express Feed Accelerator Install 🚨 MASSIVE COMBINE UPGRADE ALERT S790 GETS A POWER BOOST 🚨 In this video we're upgrading a John Deere S790 with the new High-Performance Wide Body Feed Accelerator Kit from Sloan Express and Im walking you through the full install step-by-step. 🔗 Order the Sloan Express Feed Accelerator Kit here: https://www.sloanex.com/combine-high-performance-feed-accelerator-kit-fits-john-deere.html This isnt just a parts swap this is a serious performance upgrade field-tested in over [----] combines worldwide and now" [YouTube Link](https://youtube.com/watch?v=b25y2KppWIg) 2025-07-19T00:00Z 103K followers, 44.5K engagements "John Deere 9560RT Hard Start FIXED Timing Issues Injector Replacement & Pro Tips This John Deere 9560RT came into the shop with a long crank/hard start issue after sitting and it wasnt going away. We already replaced the low-pressure fuel pump in a previous video but the problem persisted. In this episode I take you through the deep-dive diagnostic process that led to the real root cause: leaking injectors bleeding off fuel pressure. But that wasnt all during injector replacement I discovered the engine wasnt in proper time The crank and cam timing pins wouldnt go in forcing a full teardown" [YouTube Link](https://youtube.com/watch?v=uTNwdahpgFI) 2025-07-12T12:01Z 103K followers, 75K engagements "8295R [----] MFWD Axle Seal Replacement + [----] Rescue Mission In this video I start repairs on a John Deere 8295R with a leaking axle seal on the [----] MFWD front axle. I remove the final drive and knuckle but before I can finish the job I get called out to rescue a John Deere [----] thats dead in the fieldno hydraulics no transmission and stuck in a ditch. I get it loaded on a semi and hauled back to the shop. Then its back to the 8295R to wrap up the axle seal job and get it back together. Field breakdowns heavy repairs and real-world problem solvingjust another day keeping that green iron" [YouTube Link](https://youtube.com/watch?v=KxioQEaoz2Q) 2025-07-04T12:00Z 103K followers, 171.5K engagements "S790 Inspection Masterclass Everything You Need to Know This is the S790 Inspection Masterclass. In this video I take you through a full inspection of a John Deere S790 combine start to finish. Even though this machine only has [---] hours on it I still found more than I should have. Thats why it pays to be vigilant and check everything. Just because its low-hour doesnt mean its problem-free. Whether you're a seasoned operator experienced combine tech or new to S700 Series combines I break down exactly what to look for where issues hide and how to catch them before they cost you in the field." [YouTube Link](https://youtube.com/watch?v=A_z7sDm2JT8) 2025-06-28T12:00Z 103K followers, 35.7K engagements "X9 Rock Damage Elevator Repairs & Serious Chopper Upgrade Back on the John Deere X9 [----] for more repairs and upgrades. I finish up work on the clean grain elevator by replacing both the top and bottom chain sprockets and installing a new lower elevator boot. Then I get into some serious rock damage in the discharge beater that needs attention. Finally its time for a major chopper upgrade removing the powercast tailboard installing an updated chopper floor and bolting in some aggressive powercast paddles to keep this thing from plugging. This ones all about pushing through and keeping that" [YouTube Link](https://youtube.com/watch?v=29K-wQ6I0U0) 2025-06-20T23:30Z 103K followers, 30.2K engagements "X9 Repairs 8295R Axle Seals & 8235R Fan-to-Radiator Damage The spring rush is finally behind us and that means its time to bring the shop projects back in. In this video I head out to finish repairs on a John Deere X9 combine I inspected back in March replacing a feederhouse variable drive belt patching a worn-through clean grain elevator boot and checking off a few smaller jobs. Back at the shop weve got an 8295R that just sold and needs to be buttoned up. Service is done but the big job ahead is fixing a leaking [----] MFWD front axle seal. I also show a project Bens working on: an 8235R" [YouTube Link](https://youtube.com/watch?v=9yMx3LdtacI) 2025-06-14T00:59Z 103K followers, 34.9K engagements "9570R Field Fix 3046R fuel sender and a Shop Head-Scratcher on the 8360RT Back on the road with a quick service call to repair a DEF priming issue on a John Deere 9570R that I previously diagnosed. That job goes quickbut next up is something outside my usual horsepower range: a John Deere 3046R compact tractor with a faulty fuel sender. I usually stick to 200+ HP equipment but this one turns into a full-on tank removal to get the job done. Then its back at the shop where I dig into a new project: a John Deere 8360RT with hydraulic oil that's overheating. It's not a simple fixand I'm still" [YouTube Link](https://youtube.com/watch?v=UzqTNRX8V94) 2025-05-31T13:00Z 103K followers, 37.5K engagements "Pure Grit: [----] ECU Hail Mary Electrical Gremlins & Wrenching Past Sundown. This ones all about pushing throughno matter what it takes. The saga of the John Deere [----] finally comes to a head with one last HAIL MARY: a new ECU and a sketchy benchtop reprogramming trick and it WORKED. The [----] is back from the dead and running strong. But no rest for the wearynext up is a 9560RT with starting issues. Quick diagnosis points to a failed low-pressure fuel pump and were back the next day to knock it out. Then the 8310RT throws a new curveballzero cab power. After chasing down hidden electrical" [YouTube Link](https://youtube.com/watch?v=JQW6Abd2SWs) 2025-05-24T14:00Z 103K followers, 46K engagements "Update: The 9570RT is fixed Injectors fixed the issue. Check out the full video" [YouTube Link](https://youtube.com/watch?v=QvcLbXkQ9V4) 2025-05-22T02:42Z 103K followers, 18.3K engagements "Tractor Trouble: 8310RT Breakdown 8370R CAN Faults 9570RT Regen Issues 9100s Gone In this episode the [----] saga takes a surprise turn as we finally install a new fuel pumpand then get some good news about its future. From there its straight into the heat with a roadside 8310RT that mysteriously wont move. until it does. I track down a couple hydraulic leaks and run tests but no hard fault found. Next up: a quick but critical fix on an 8370R with CAN bus gremlins traced back to the cab wiring. Then its back to the shop for an update on the 9100its outta here I wrap things up with a deep-dive" [YouTube Link](https://youtube.com/watch?v=HZiMDtgxKdg) 2025-05-17T00:15Z 103K followers, 43.6K engagements "Fixing Everything: 9570R [----] 8R [---] [----] & Even My Truck This one's got it allinjector swaps regen problems coolant system tricks DEF pressure codes truck upgrades and even a hydraulic leak fix on my crane. I start with the John Deere 9570R thats been having constant regen issues. Diagnostics pointed to weak injectors so I tore into the QSX 15.0L Cummins and got new ones installed. Next up a John Deere [----] sprayer with an ECU [------] manifold temperature high code. After fighting a stuck radiator valve I used a neat trick the next morning to bleed the two-part cooling systemand got that" [YouTube Link](https://youtube.com/watch?v=i1ltgtlC83E) 2025-05-10T11:30Z 103K followers, 39.9K engagements "The [----] Refuses to Run and the 8Rs Fan Goes Full Turbo The John Deere [----] saga continues After running new wires from the injection pump to the ECU Im still chasing down the issueand now its worse than ever. Then I jump over to one of my favorites: a John Deere 8R [---]. I break down how the new electronic viscous fan clutch works diagnose an electrical fault that's sending the fan to full RPM and replace the failed clutch. Back in the shop its time to pull the 9100s pump and send it to the pump shop for internal harness repairs. Finally I show off a new 4000-watt inverter for my RAM service" [YouTube Link](https://youtube.com/watch?v=ZEGjbpXjdHc) 2025-05-03T01:00Z 103K followers, 41.6K engagements "Overrev Regen Fails & Electrical Chaos Deere Diagnostics Madness In just one day I tackled five different John Deere machines with problems ranging from wild overrevving to regen issues and full-on electrical chaos. These are real-world issuesand real-world fixes. I kick off in the shop with a [----] surging to [----] RPM at startup. Then I head to a 9570R with a Cummins QSX15 dealing with frequent regenerations. That leads to a quick but revealing diagnostic. Back in the shop I trace down a short in the [----] only to get pulled into a hub build for a 2660VT. then out again to troubleshoot a 9460R" [YouTube Link](https://youtube.com/watch?v=7VmBD8QZgRw) 2025-04-25T23:30Z 103K followers, 51.1K engagements "AutoTrac FAILS on a 9R [---] and the [----] Wont Stop Throwing Codes 😤 This one tested my patience. I start the day with a 1.5-hour drive to look at a John Deere 9R [---] where AutoTrac isnt working. After checking over the system and diagnostics I track down the issue and quickly get it sorted. Nothing like driving [---] hours to fix it in [--] min But then. its off to a [----] that just wont quit giving me trouble. Its been throwing ECU camshaft and crankshaft position codes all spring and Ive tried everything. The codes keep coming back. Now there's only one move left: run new wires directly from the" [YouTube Link](https://youtube.com/watch?v=jz5aMDtvojc) 2025-04-18T23:30Z 103K followers, 48.8K engagements "This [----] is testing my LAST nerve 😤 This [----] has been haunting me all spring. Camshaft and crankshaft sensor codes just keep coming back no matter what I do and now it's down to running new wires from the ECU. 🔧 Watch the full repair TONIGHT at 6:30PM central. If youve ever had a machine fight you every step of the way 👉 Hit that subscribe button and ride along #JohnDeere9530 #TractorRepair #DieselTech #ZKMastertech #FarmLife #GreenIron #SnapOnTools #MilwaukeeTools #MatcoTools #Shorts John Deere [----] John Deere tractor repair tractor problems tractor won't run tractor ECU codes camshaft" [YouTube Link](https://youtube.com/watch?v=_y0dWo2qCD8) 2025-04-18T23:05Z 103K followers, 28.2K engagements "Big Repairs Bigger Machines John Deere 8400R & 8R [---] Fixes Were back in the shop and back in the field First up: I finally get the cab reinstalled on the rodent-damaged John Deere 8400R. Then it's off to a customers farm to tackle some serious issues on a John Deere 8R 370a front MFWD output housing leak caused by loose bearings failed seals and sloppy ILS driveshafts. And thats not allthe right side needs attention too. After that I take on a problem at the RH rear inner dual where the tires dangerously close to punching a hole in the fuel tank. Time for a new bracket install and some tire" [YouTube Link](https://youtube.com/watch?v=au1RpjCi9pQ) 2025-04-12T02:41Z 103K followers, 69K engagements Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing
@zkmastertech ZK MasterTech
ZK MasterTech posts on YouTube about zk, service, shop, green the most. They currently have [-------] followers and [---] posts still getting attention that total [------] engagements in the last [--] hours.
Engagements: [------] #
- [--] Week [-------] +105%
- [--] Month [-------] -33%
- [--] Months [---------] +48%
- [--] Year [---------] +118%
Mentions: [--] #
- [--] Month [--] -3.90%
- [--] Months [--] +35%
- [--] Year [--] +196%
Followers: [-------] #
- [--] Week [-------] no change
- [--] Month [-------] +0.98%
- [--] Months [-------] +8%
- [--] Year [-------] +14%
CreatorRank: [-------] #
Social Influence
Social category influence currencies technology brands automotive brands social networks
Social topic influence zk #43, service, shop, green, iron #2644, tech, fuel, in the, calls, oil
Top accounts mentioned or mentioned by @thezkmastertechisfromwebapp1senderdevicepc @thezkmastech @stellarindustries @thezkmastertech @millennialfarmer @sloanimplement @sloanexpress @carpuride
Top assets mentioned Crane Holdings, Co. (CR)
Top Social Posts
Top posts by engagements in the last [--] hours
"Hydraulic Nightmare This John Deere [----] Had ZERO Oil Pressure What started as a simple service call on a John Deere [----] that wouldnt start quickly turned into a full hydraulic nightmare. After getting the tractor running and driving it I found it had zero hydraulics and absolutely no charge pressure. The tractor was hauled back to the shop for further diagnosis and things only got worse from there. During testing there was no charge pressure and not even a drop of oil coming out of the charge pump outlet. After draining the oil and removing the sump screen the problem became clear the"
YouTube Link 2026-02-13T20:00Z 103K followers, 34.6K engagements
"John Deere 8370R IVT removal. (Part 1) In this video Josh and I are going to remove the IVT transmission from the 8370R in order to replace the hydro inside the IVT. See what it takes to split the tractor and remove the transmission Check out my merch store https://zk-mastertech.myspreadshop.com/ Want a career with Sloan Implement https://www.sloans.com/career Check out my Amazon store front Buy the tools I use and recommend https://www.amazon.com/shop/zkmastertech IVT transmission transmission repair john deere 8R IVT tractor repair sloan implement zk mastertech 8370R IVT transmission"
YouTube Link 2023-08-11T15:10Z 103K followers, 86.6K engagements
"John Deere 8370R IVT disassembly (Part 2) In this video you will get to see the IVT transmission get disassembled in order to figure out what is wrong with it. This is one of my favorite jobs to do in the shop. I just love taking transmission's apart and figuring out what the problems are. So I thought I would take you guys along. Enjoy Check out my merch store https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front Buy the tools I use and recommend https://www.amazon.com/shop/zkmastertech Interested in a career with Sloan Implement https://www.sloans.com/career john deere"
YouTube Link 2023-08-18T22:09Z 103K followers, 90.8K engagements
"8RX [---] track 9360R Radiator X9 Issues & S780 Electrical Gremlins Harvest [----] Service Calls [--] In Harvest [----] Service Calls [--] its another packed round of field and shop repairs during one of the busiest times of the year. The day kicks off with a John Deere S660 throwing a fuel dosing inlet pressure fault. Then its on to a 9360R with a leaking radiator and an X9 [----] with a bad unloading auger latch assembly. Next up an S780 in the field develops strange electrical issues traced to bad grounds and a software glitch. An S680 rolls in with a shredded chopper jackshaft belt a leaking grain"
YouTube Link 2025-10-04T11:30Z 103K followers, 50K engagements
"Come meet me at the National Farm machinery show Sloan Express booth [----] #nfms"
YouTube Link 2026-02-14T13:25Z 103K followers, [----] engagements
"John Deere Master Ag Technician service truck tour See what tooling it takes to be a Master John Deere Ag Technician I have been collecting tools since [----] after I graduated from Wyotech. Loads of Snap-on Milwaukee Gearwrench knipex Matco Sunex Tekton Deere tools and more My service truck is a mobile shop and I need to have everything to do whatever task I need to in any weather condition. In harvest and planting season I am working under pressure and I cannot afford to not have the right tool for the job. But I will admit I might have a slight tool addictionlol. Want to see the best of ZK"
YouTube Link 2021-07-20T12:07Z 103K followers, 229.2K engagements
"This John Deere 8370R Wouldnt Come Out of Park Heres What Failed Inside the IVT This John Deere 8370R came to a complete stop during harvest when the IVT transmission would not finish its startup calibration and would not come out of park. Forced calibration attempts failed so pressure testing was performed to determine what was really going on inside the transmission. System [--] pressure was found to be only [--] psi when specification called for [---] psi indicating a major internal leak. Based on the codes being set and the pressure readings a failed hydro module inside the IVT transmission was"
YouTube Link 2021-10-26T15:42Z 103K followers, 520.6K engagements
"2023 RAM [----] Service Truck Tour Built to Work with Stellar T-Max Crane Join me for an in-depth tour of my brand new [----] RAM [----] service truck outfitted with a Stellar Industries T-Max crane body. This build is all about heavy-duty performance smart organization and getting the job done right. Heres what youll see in this video: ✅ Exterior Walkaround A close look at the RAM [----] and the rugged T-Max crane setup 🔧 Tool Storage & Organization Compartments drawers and racks packed with Milwaukee Snap-On Matco Gearwrench Tekton Sunnex and more ⚙ Custom Add-Ons Modifications that make this"
YouTube Link 2024-11-28T16:41Z 103K followers, 59.5K engagements
"The Most Optioned $1M John Deere X9 Full Inspection Back at the farm with one of the most impressive machines Ive ever inspected a brand-new John Deere X9 [----] thats only run one season equipped with the Ultimate Technology Package and literally every option Ive ever seen. This is a true million-dollar combine and in this video I walk through a complete front-to-back inspection showing exactly what I look for on an X9 and the key areas that deserve extra attention. Using the Shop Dog Industries CBX combine turning tool I break this machine down section by section feederhouse tracks residue"
YouTube Link 2026-01-17T16:00Z 103K followers, 33.5K engagements
"John Deere 8R [---] fuel tank replacement In this video I work on replacing a fuel tank that got a hole rubbed into it because one of the wheel wedges came loose and the tire went inward causing it to rub a hole into the tank This is usually caused from human error and not getting them tight enough properly torqued or the wedges didn't get re-torqued after some hours were put on the tractor. I've never had a wheel come loose when it is properly torqued and re-torqued after driving it. But it is what it is and needs to be fixed. A lot more stuff has to come off than I thought to get the fuel"
YouTube Link 2022-06-12T17:16Z 103K followers, 291.5K engagements
"John Deere 6125R IVT low lube pressure codes Part [--]. Thanks to BRUNT for sponsoring this video Get $10 off your first purchase with a 30-day risk-free trial at https://brunt.yt.link/Fpmgj66 using code ZK10. In this video I continue the work of reconditioning the MFWD that had a blown shaft seal which was causing a severe lube pressure leak in the IVT transmission. Watch as I show you how to rebuild the MFWD step by step and get this tractor running again. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a"
YouTube Link 2024-07-26T12:00Z 103K followers, 44.3K engagements
"First Look: John Deere S7 [---] Through a Master Technicians Eyes In this video I take you on my very first master technician walkthrough of the all-new John Deere S7 [---] combine. Forget the usual salesman tour this is a deep dive into the nuts and bolts of every upgrade Deere packed into this machine. From the redesigned cab and powerhouse engine to next-level cleaning systems and cutting-edge electronics I break down all the real improvements and share my honest unfiltered opinion. This is the very first S7 combine Ive had the chance to check out so youre getting my raw first reactions to"
YouTube Link 2025-08-09T11:42Z 103K followers, 72.3K engagements
"John Deere S770 Combine Major Feederhouse Rebuild Hydraulic Fixes & PowerCast Upgrades Back on the John Deere S770 combine for a full round of inspections repairs and upgrades. What started as a simple grease seal issue on the variable speed feederhouse drive turned into a complete rebuild with multiple new parts and a full reassembly including a step-by-step on putting the upper variable back together and adjusting the speed correctly. Other repairs and upgrades in this video include: Replacing the broken shoe auger drive bearing Vertical auger gearbox rebuild & auger replacement Installing"
YouTube Link 2025-08-16T12:01Z 103K followers, 35.2K engagements
"John Deere 8370R IVT assembly (Part 3) In this video we are putting the IVT back together with some new parts. It is a very meticulous job getting every detail right and there is zero room for error. Come tag along with us and you can watch how this modern marvel transmission gets reassembled. The IVT is an incredible transmission and it just amazes me how it works. It is one of my favorite transmissions to work on. Check out my merch store https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front Buy the tools I use and recommend https://www.amazon.com/shop/zkmastertech Want a"
YouTube Link 2023-08-25T13:37Z 103K followers, 143.8K engagements
"X9 Turbo Leak S780 Transmission and separator clutch Failure X9 hits a pole with unloading auger Thanks to Rakd Audio for sponsoring this video Go to https://getrakd.com and use discount code ZK10 to get 10% off your purchase on the new V2.1 Bluetooth speaker In this episode of Harvest [----] Service Calls [--] the week starts out with an X9 combine thats leaking coolant out of the turbo box on the big 13.6L engine. Then its back to the shop where I show off my brand new Rakd Audio Bluetooth Ammo Can Speaker this things built tough and sounds awesome. Next up I dig into an S780 in the shop thats"
YouTube Link 2025-10-11T11:00Z 103K followers, 48.3K engagements
"It Ate Something BAD 💥 Shop Carnage + Harvest Fixes The harvest just wont end and neither do the breakdowns. We start by rescuing a [----] with a locked-up enginewinching it onto a drop-deck with an 8R doing the pulling and steering hoses to snake it onto a trailer it barely fits. Then its an S790 with a DEF dosing pressure fault (bad pressure sensor in the dosing unit). Swap the sensor back to combining corn. Next an 8R [---] with no cab heatdiagnostics point to a stuck-closed water valve (temperature actuator). Fixed and warm again. On to an S780 thats losing prime all fall and hates cold"
YouTube Link 2025-11-15T15:00Z 103K followers, 83.8K engagements
"@MillennialFarmer 8RT tractor & high speed planter inspection (Part 1) Went on the longest service call ever to Millennial Farmer's shop in Minnesota. I've got my best friend Caleb with me and he is a planter master Together we team up and show how Sloan Implement gets it done In part [--] we get the tractor ready to hook up to the planter hook up the planter talk about all the hydraulic and electrical connections and get it unfolded and ready to inspect. #johndeere #johndeeretractor #johndeeretractorpower #agriculture @MillennialFarmer @sloanimplement @sloanexpress Want to see the best of ZK"
YouTube Link 2022-03-04T21:00Z 103K followers, 277.1K engagements
"After Everything This [----] Went Through This Is the Moment This is the final chapter of the John Deere [----] engine saga. After a catastrophic engine failure and draining oil full of bearing material this tractor has been torn down rebuilt and put back together one system at a time. Today is the moment where everything comes together or doesnt. There are no guarantees at this stage. After everything this tractor has been through it all comes down to one turn of the key. In this video I walk through installing the replacement engine reconnecting the fuel system cooling system charge air wiring"
YouTube Link 2026-01-31T21:00Z 103K followers, 41.7K engagements
"Replacing a Failed 12.5L John Deere [----] Complete Block Build This John Deere [----] didnt just need parts it needed a second chance. In this video I take a completely failed 12.5L engine and build a brand-new complete block assembly from the stand up showing every critical step along the way. The original engine failure was caused by a failed water pump that allowed coolant to intrude into the engine oil which led to main bearing failure and rapid internal engine damage. This was not operator error or neglect once coolant contamination occurs bearing damage can escalate quickly and replacement"
YouTube Link 2026-01-24T20:30Z 103K followers, 58.9K engagements
"Major Failure Inside This S780 [--] Speed Feeder House Gear Case Last harvest season this John Deere S780 combine came to a stop in the field with low transmission supply pressure. Field diagnostics led to a failure inside the [--] speed feeder house gear case specifically the C91 (first gear) clutch. After the season ended the customer brought the combine into the shop so the machine could be torn down and repaired properly. In this video the combine is brought into the shop and disassembled for repair. The duals and gull wing door had to be removed for access along with drive shafts hydraulic"
YouTube Link 2026-02-07T21:00Z 103K followers, 44.2K engagements
"Chasing Harvest Breakdowns Service Calls Across Multiple Days (EP. 1) Kicking off my brand-new series Harvest [----] Service Calls 🌽🚜 Over the course of several busy harvest days I hit the road to tackle a wide variety of breakdowns diagnostics and repairs. Each day brings something different and you never know where the next call will take me. We start with an update on the S680 Ive been working on then head out to a John Deere S670 with a banging noise in the cleaning shoe. The pre-cleaner was about ready to fall out causing damage to the pre-cleaner chaffer and sieve elements all of which"
YouTube Link 2025-09-13T01:20Z 103K followers, 32.8K engagements
"🔧 Massive John Deere Repairs: 8400R Harness Headaches & 8360R ILS Overhaul Its a full throttle day of Deere diagnostics and serious repairs We kick things off with an update on the John Deere 8400R and the ongoing battle with its chassis and transmission wiring harness issues. Then its off to the farm to tackle a long list of repairs on a John Deere 8360R. This round includes: Replacing ILS accumulators Swapping out SCV couplers Repairing a leaking oil cooler line Installing a new hydraulic restriction sensor Rebuilding the RH ILS steering cylinder guide After the 8360R is squared away we"
YouTube Link 2025-04-04T23:00Z 103K followers, 113.5K engagements
"We Put It Back Together Did This 9.0L Survive Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/PKfEl6p using code ZKMASTERTECH. Before tearing into reassembly heres some background on why this engine was removed in the first place. This John Deere S670 came in with a running issue that led to finding a failed intake valve. What started as a single component failure had the potential to cause major engine damage if it was put back into service. To be absolutely sure there were no additional issues hiding below the surface the decision was made"
YouTube Link 2025-12-20T21:00Z 103K followers, 45.7K engagements
"The Worst Engine Vibration Ive Ever Felt 9510R Torsional Damper Failure If youve never felt a failed torsional damper youre in for a wild onethis John Deere 9510R felt like the engine was about to jump out of the frame In this video Ill walk you through what it takes to replace the torsional damper behind the enginea job made even tougher when theres no room to work. This years been extra dry and these tractors are pulling harder than ever. Ive already seen a couple of these dampers fail and getting them out isnt easy I might need to bring a smaller guy with me next time. 💥 Expect insane"
YouTube Link 2024-11-16T12:04Z 103K followers, 122.3K engagements
"Worst Equipment Carnage I've Ever Seen This video is a compilation of the worst equipment carnage Ive seen real-world failures caught during diagnostics in both the field and the shop. From catastrophic engine damage and transmission failures to hydrostatic pumps completely puking their guts out to failed axle bearings a harness fire and machines instantly taken out of service this video shows what failure actually looks like when it happens for real. This compilation pulls together failures from dozens of different machines across multiple model lines tractors combines and harvest equipment"
YouTube Link 2026-01-03T16:00Z 103K followers, 92.6K engagements
"S670 Engine REMOVAL & Tear-Down You Wont Believe What I Found Inside I just reached 100K subscribers and I want to thank every single one of you for helping me get here. Your support means more than you know. Now we dive into a brand-new series: [----] Winter Shop Projects. First up is a John Deere S670 I looked at this fall that was throwing an intake manifold air temperature high code and derating the engine. During my initial diagnosis I suspected an intake valve issue around cylinder [--] based on the compression noise in the intake and how fast the sensor was heating. We had the combine"
YouTube Link 2025-12-06T21:00Z 103K followers, 106.4K engagements
"Major Combine Repairs in the Heat of Harvest Good ol' [--] Series combine Got to love it Its harvest season which means the service calls dont stop. In this video I cover a full round of combine repairs diagnostics and field fixes: Update on the John Deere S790 getting a complete cleaning shoe rebuild in the shop Service call on an S780 throwing emissions codes diagnosed a bad aftertreatment temp module replaced it and ran a regen John Deere [----] with a bad header lift control valve that left the header stuck on the ground S680 with a grain tank cover and fountain auger fold problem S7800 with"
YouTube Link 2025-09-20T12:35Z 103K followers, 67.7K engagements
"X9 Shop Repairs & a Look at a $1M X9 X9 shop repairs: clean grain elevator overhaul + cleaning fan belt & sheave maintenance. Plus a quick look at a $1M X9 [----] and a [----] engine surprise back at the shop. We kick this one off with a quick [----] update (and a teaser of whats coming) then dive straight into the X9 clean grain elevator work: paddle chain removal belt de-tension top sprocket chain install and lower auger install. From there I tighten everything back up and move into the cleaning fan drive belt driven sheave oil change and fan belt install. We also run into a midfloor issue that"
YouTube Link 2026-01-10T16:00Z 103K followers, 52.7K engagements
"This John Deere [----] Axle Was Failing Heres How We Caught It in Time What started as a simple axle seal leak turned into a major front axle bearing failure in progress on this John Deere [----]. The customer noticed oil leaking from the front axle and being slung all the way up to the windshield. Once the tractor arrived at the dealership I checked the axle bearing end play and immediately knew something wasnt right it was way out of specification. After draining the axle a large amount of metal and bearing material came out confirming the axle bearings were failing and the tractor was on"
YouTube Link 2021-11-22T10:06Z 103K followers, 2.7M engagements
"The [----] That REFUSES to Run Today was a big diagnostic day in the shop. The main issue A John Deere [----] that starts runs for a few seconds and dies until it finally goes completely dead. This wasnt a battery issue. This was electronic: CAN power grounds relays ECU failure and everything in between. Follow along as I test trace and finally track down the culprit. Also included in this video: Diagnosing a 9620RX that wont throttle up Full road test after verifying active codes Replacing the DEF dosing unit on the 9620RX Swapping and programming the ECU on the [----] Cold-weather gear-up segment"
YouTube Link 2025-11-30T00:00Z 103K followers, 85.2K engagements
"Oil Pressure Was In Spec Then This [----] Engine Destroyed Itself This is a follow-up to the John Deere [----] with a 12.5L engine that suffered a catastrophic engine failure after a water pump failure allowed coolant into the crankcase. The water pump was replaced the crankcase flushed oil and filters changed and oil pressure checked. Everything looked acceptable on paper. This video is part of the Winter Shop Projects series (Episode 4). Cold oil pressure was strong. Hot oil pressure was lower but still within minimum specification. To fully evaluate it under load we took the tractor to the"
YouTube Link 2025-12-29T21:00Z 103K followers, 119.1K engagements
"Small Problem HUGE Repair Intake Valve Failure on a 9.0L We start off with a look at the intake valve failure on the 9.0L engine out of the S670 combine. Before this engine can go back into the machine I dig into replacing the water pump and the leaking main engine gear case input shaft seal. Once thats handled we shift gears while waiting on the cylinder head to return from the machine shop. Next up is an X9 [----] clean grain auger repair back at the shop. And then the next morning its time to brave the cold. I throw on the gear and head out to a Bron [---] tile plow throwing DEF system faults."
YouTube Link 2025-12-13T21:00Z 103K followers, 60.1K engagements
"This [-----] LB Beast Is Powered by a John Deere 13.6L 💪🔥 In this one I dive into repairs on a BRON [---] tile plowan [-----] LB beast powered by a John Deere 13.6L engine. The water pumps shot and its time to get it swapped out and back to work. Then its over to an 8400R Ive already started diagnosing. The SCVs arent working and the root cause is a load sense issue inside the priority valve. Time to tear in fix the problem and get this tractor back in the field. Big iron deep diagnostics and real-world repairsjust another day in the shop Want to see the best of ZK MasterTech Check out my top"
YouTube Link 2025-03-07T13:12Z 95.8K followers, 39.6K engagements
"John Deere 8370R hydraulic diagnostics - This one ALMOST stumped me Going back to the 8370R that the customer is complaining of hard steering when turning on the end rows while planting. Got to love a good challenge Continuing from part [--] I am back to replace the load compensation valve on the main pump that I could NOT get to adjust because the adjustment screw was seized solid. Got to get the main pump pressure up to continue diagnostics. One thing leads to another and I end up having to yank the duals off to make some pressure adjustments and replace the whole entire priority valve"
YouTube Link 2024-07-20T17:00Z 90.7K followers, 61.3K engagements
"X9 Rock Damage Elevator Repairs & Serious Chopper Upgrade Back on the John Deere X9 [----] for more repairs and upgrades. I finish up work on the clean grain elevator by replacing both the top and bottom chain sprockets and installing a new lower elevator boot. Then I get into some serious rock damage in the discharge beater that needs attention. Finally its time for a major chopper upgrade removing the powercast tailboard installing an updated chopper floor and bolting in some aggressive powercast paddles to keep this thing from plugging. This ones all about pushing through and keeping that"
YouTube Link 2025-06-20T23:30Z 103K followers, 30.2K engagements
"Learn how a John Deere R134a air conditioning system works We are busting out the simulator Let my sponsor BetterHelp connect you to a therapist who can support you - all from the comfort of your own home. Visit https://betterhelp.com/zkmastertech and enjoy a special discount on your first month This video is the best basic A/C lesson in [--] minutes you will ever see. Bringing in my buddy Caleb in on this video at the Sloan's training center to show you how a basic A/C system works. We will talk about the basic theory of heat transfer and how that applies into air conditioning. We are going to"
YouTube Link 2024-03-22T12:00Z 79K followers, [----] engagements
"Going deeper into repairs on the 8295R (Part 2) In this video we dive right back into repairs on the John Deere 8295R. See the process of replacing the MFWD differential housing bearing and seals ILS drive shaft re-sealing the final drive and charging and replacing the hydraulic accumulators for the ILS (Independent link suspension). It's time to kick it into high gear and get this tractor done. More tractors are waiting Check out Rak'd Audio Ammo can bluetooth speakers https://www.getrakd.com Use promo code "ZK10" at checkout to get 10% off Want some ZK merch"
YouTube Link 2024-03-02T02:51Z 79K followers, 48.7K engagements
"John Deere [----] will not move. CAN bus diagnostics This tractor had me stumped for a while. Took some serious diagnosing and testing to figure out what was crashing the CAN bus on this tractor. Engine would sometimes cutout or die and sometimes the transmission would default to neutral. Limited controllers would show up on the corner post display and there were no codes to follow. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career To buy the"
YouTube Link 2024-06-14T17:00Z 91.9K followers, 71K engagements
"How a Variable Pitch Fan Works Until It Doesnt 😬 John Deere X9 Trouble Ever wonder how a variable pitch fan works In this video I dig into a troublesome fan on a John Deere X9 [----] combine thats giving me all kinds of headaches. We go through: How the variable pitch fan system operates Electrical and hydraulic diagnostics Repair attempts and testing And ultimately the moment it explodes during disassembly 😳 Despite the deep dive the only solution was to order a brand-new fan. Sometimes the job throws you curveballsyou just have to roll with it. Go to https://buyraycon.com/zkmastertech to"
YouTube Link 2025-02-07T18:49Z 92K followers, 27.6K engagements
"We got a Shop Dog CBX Let's use it on a John Deere X9 [----] Check out https://www.shopdogindustries.comto see their full product line and learn more about the CBX. This thing is a total game changer In this video I'm going to give you the most in depth tour of a John Deere X9 combine on YouTube using the Shop Dog CBX to turn the separator and feeder house and inspect every inch. See how the Shop Dog CBX is game changer for all John Deere combine technicians working on S-Series X-Series and [--] series combines. By the end of the video you will have a good idea on how an X9 works and the"
YouTube Link 2024-08-10T00:00Z 87.3K followers, 53.8K engagements
"The John Deere 9510R is back Time to get the turbo EGR cooler and exhaust manifold fixed right The 9510R made it through spring planting We were able to get the oil contamination in the cooling system under control with replacing the oil cooler (oil cooler tested bad) and the fan drives replaced so it could finish up this spring. The tractor had to finish spring with a terrible noise coming from the turbo an exhaust manifold leak and a cracked EGR cooler. With the weather window we had there was not enough time to stop and fix the rest. Now I can go back and fix it right. Got to replace the"
YouTube Link 2024-06-22T02:18Z 88.9K followers, 81.4K engagements
"I got a new service truck [----] Ram [----] with a Stellar T-Max service body. To buy the Carpuride W903 go to https://carpuride.com/ref=zkmastertech and use coupon code "ZKMT" to get $50 off your purchase Carpuride on Amazon: https://www.amazon.com/dp/B0CJ26G15G/ref=cm_sw_r_as_gl_api_gl_i_dl_E9BS8265F2MEBCPPCTM2linkCode=ml2&tag=zethdawnayake-20 In this video I am going to be upgrading service trucks. Going from a [----] Ford F-350 with a readings service body to a new [----] Ram [----] with a Stellar Tax 1-11 crane body. Going to get all my tools switched over mount a drawer unit in organize all my"
YouTube Link 2024-02-09T14:38Z 87.4K followers, 110.4K engagements
"Tractors Everywhere. and Theyre All Tore Apart 😱 Spring Prep Madness Begins Spring prep is in full swingand the shop is packed In this video: 🛠 I completely remove the aftertreatment system from a 9620RX to get it cleaned and back in shape. 🐭 Check out the damage on an S780 combine with a wiring harness chewed clean in half by miceand yep an 8400R with the same rodent problem on its transmission harness. 🔧 Patrick's busy tearing into an 8320R and I hit the road for a service call on a classic [----] and a Case IH [---] disc that needs some attention. Multiple tractors nonstop repairs and the"
YouTube Link 2025-03-14T12:00Z 96.2K followers, 52.5K engagements
"John Deere 9R [---] Steering Issue Load Sense Leak Diagnosed + Q&A Got called out to troubleshoot a hard steering issue on a John Deere 9R [---]. After checking pressures and flow I traced the problem to a load sense leak in the steering circuit that was dropping pressure. Want to see the best of ZK MasterTech Check out my top repair and service videos here: https://youtube.com/playlistlist=PLhGcsfw6sbwx66pEkZpqLd_SF8jASNMgY&si=1aomfCy5TJ8d19kf Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with"
YouTube Link 2024-12-20T18:00Z 92.4K followers, 40.6K engagements
"Pure Grit: [----] ECU Hail Mary Electrical Gremlins & Wrenching Past Sundown. This ones all about pushing throughno matter what it takes. The saga of the John Deere [----] finally comes to a head with one last HAIL MARY: a new ECU and a sketchy benchtop reprogramming trick and it WORKED. The [----] is back from the dead and running strong. But no rest for the wearynext up is a 9560RT with starting issues. Quick diagnosis points to a failed low-pressure fuel pump and were back the next day to knock it out. Then the 8310RT throws a new curveballzero cab power. After chasing down hidden electrical"
YouTube Link 2025-05-24T14:00Z 103K followers, 46K engagements
"Ask me anything Next video I'm going to do a Q&A"
YouTube Link 2024-12-12T02:36Z 90.9K followers, [----] engagements
"John Deere 8400T track tension cylinder repair Thanks to BRUNT for sponsoring this video Get $10 off your first purchase with a 30-day risk-free trial at https://brunt.yt.link/EXOHxIQ using code ZK10. In this video I've got a 8400T that is down because the track tension has loosened all the way due to a leaking tension cylinder. See the process of getting that cylinder in and out and reconditioned Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career"
YouTube Link 2024-09-27T18:54Z 87.1K followers, 43.2K engagements
"John Deere S780 will not crank S670 & S770 transmission codes X9 track drive sprocket failure These next two videos are going to follow just one day in the life of ZK. This video we start things off with an S780 that sometimes will not crank and is having issues with the engine speed surging and header kicking out. Second service call I go look at an S670 that has an active transmission code. Got to love mice Third service call I go look at a brand spankin new S770 that will not go into gear or come out of park. Then my boss sends me a picture of an X9 with some serious track carnage. Want"
YouTube Link 2024-10-04T17:00Z 89.1K followers, 42.8K engagements
"Fuel Pump Failure DEF Issues & X9 Breakdowns Harvest Service Calls [----] Ep. [--] Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/CoYsW9u using code ZKMASTERTECH. This round of harvest service calls is packed with repairs across multiple machines. I start out with a John Deere S670 throwing a PTP code for the reverse pressure sensor on the ProDrive hydrostatic pump. After thats resolved its on to an S680 with a leaking separator drive hydraulic cylinder and then a 9370R with emissions codes. From there I check out a combine in the shop with a"
YouTube Link 2025-09-27T10:44Z 103K followers, 55.6K engagements
"Update: The 9570RT is fixed Injectors fixed the issue. Check out the full video"
YouTube Link 2025-05-22T02:42Z 103K followers, 18.3K engagements
"EPIC John Deere Adventure 🚜 [----] X9 [----] 8RX [---] & More in One Video The legendary [----] is backand this time its got a weird SCV issue that needs tracking down. Then it's road trip time to a true John Deere paradise where I get hands-on with the tracks on an X9 [----] and update a few shiny 8RX 410's Next up: a service call for hydraulic leaks on an 8310R and a quick stop to diagnose a 6130R throwing a code thats shutting the engine down. 👉 Tons of green iron real-world diagnostics and serious wrenching in this one. Dont miss the original [----] video if you havent seen it yetthis story just"
YouTube Link 2025-03-22T02:44Z 96K followers, 52.4K engagements
"John Deere 8370R IVT installation. (Part 4) It runs like a dream Now it's time to install the transmission back into the tractor and get everything put back together. Once we get everything back together and the hydraulic oil filled up we will perform the hydro flush procedure and replace the RU & CU control valves. Then we will get the oil hot and do a full IVT calibration. And after all that work has been accomplished we will finally get to take our maiden voyage. It runs like a dream Thank you for watching this series Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my"
YouTube Link 2023-09-06T17:52Z 76.7K followers, 25.6K engagements
"6125R IVT Transmission diagnostics 8370R Hydraulic diagnostics Go to https://buyraycon.com/zkmastertech to get 15% off your Raycon purchase plus free shipping Working on a 6125R IVT transmission with low lube and system pressure codes. See how I diagnose a leak in the system. Then I go work on a 8370R with a hard steering complaint. See how I diagnose low main pump system pressure and low steering stall pressure. BONUS CONTENT: Then after that I remove the cab roof of an S670 combine to replace the blower motor. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon"
YouTube Link 2024-07-13T00:47Z 92.1K followers, 38.8K engagements
"9570R Field Fix 3046R fuel sender and a Shop Head-Scratcher on the 8360RT Back on the road with a quick service call to repair a DEF priming issue on a John Deere 9570R that I previously diagnosed. That job goes quickbut next up is something outside my usual horsepower range: a John Deere 3046R compact tractor with a faulty fuel sender. I usually stick to 200+ HP equipment but this one turns into a full-on tank removal to get the job done. Then its back at the shop where I dig into a new project: a John Deere 8360RT with hydraulic oil that's overheating. It's not a simple fixand I'm still"
YouTube Link 2025-05-31T13:00Z 103K followers, 37.5K engagements
"8R [---] Gets More Air AND a Smoother Ride Air Cleaner + Seat Fix Customer's been fighting with a clogged air filter every [--] days on this John Deere 8R [---] and Ive got the fix: a new upgraded air cleaner with a better pre-cleaner system to keep things running smoother longer. But thats not allthe Ultimate Seat isnt living up to its name. Some serious air line issues mean Ive got to pull the entire seat out of the cab to make it right. More air = more power. Fixed seat = better ride. Lets get to it. Want to see the best of ZK MasterTech Check out my top repair and service videos here:"
YouTube Link 2025-02-28T13:20Z 92.2K followers, 38.6K engagements
"This [----] is testing my LAST nerve 😤 This [----] has been haunting me all spring. Camshaft and crankshaft sensor codes just keep coming back no matter what I do and now it's down to running new wires from the ECU. 🔧 Watch the full repair TONIGHT at 6:30PM central. If youve ever had a machine fight you every step of the way 👉 Hit that subscribe button and ride along #JohnDeere9530 #TractorRepair #DieselTech #ZKMastertech #FarmLife #GreenIron #SnapOnTools #MilwaukeeTools #MatcoTools #Shorts John Deere [----] John Deere tractor repair tractor problems tractor won't run tractor ECU codes camshaft"
YouTube Link 2025-04-18T23:05Z 103K followers, 28.2K engagements
"Big Repairs Bigger Machines John Deere 8400R & 8R [---] Fixes Were back in the shop and back in the field First up: I finally get the cab reinstalled on the rodent-damaged John Deere 8400R. Then it's off to a customers farm to tackle some serious issues on a John Deere 8R 370a front MFWD output housing leak caused by loose bearings failed seals and sloppy ILS driveshafts. And thats not allthe right side needs attention too. After that I take on a problem at the RH rear inner dual where the tires dangerously close to punching a hole in the fuel tank. Time for a new bracket install and some tire"
YouTube Link 2025-04-12T02:41Z 103K followers, 69K engagements
"620HP 15.0L Cummins fuel system diagnosis. (Part 2) Will we finally get the 9620R started The story finally continues. Got the tractor back in the shop for more diagnostics. In an earlier video diagnostics led to replacing the high pressure fuel injection pump. During the repair I noticed the inlet screen to the pump was clogged so I suspected a contaminated fuel system. Could not build enough rail pressure to start. Replacing the pump finally got the engine running but it would not start without ether and once it was running it was rough and smoking really bad. In this video we finally get"
YouTube Link 2024-01-27T02:20Z 87.5K followers, 42.4K engagements
"2021 John Deere 9620RX sets multiple communication faults and speed is de-rated to [--] mph. Got a brand new John Deere 9620RX that is setting steering and communication fault codes and will only run [--] mph. Speed is de-rated. Problem is very intermittent which makes it very hard to diagnose. What do you do when the diagnostics lead you nowhere #johndeere #johndeere9620rx #johndeerewrenching #johndeereagtech #farmlife #johndeeretractorpower"
YouTube Link 2021-04-13T01:21Z 97.2K followers, 99.8K engagements
"Let's kick Spring [----] off right John Deere 9620RX QXS15 Cummins water pump repair. First tractor that broke down in the field for Spring [----] and it turned out to be a good one Water pump totally grenaded and sent metal into the cooling system. Will have to replaced the EGR cooler thermostat and flush the entire cooling system to make sure all the contamination is removed. #johndeere #johndeeretractor #cummins Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement"
YouTube Link 2024-04-14T22:09Z 79.9K followers, 65.7K engagements
"John Deere S680 ProDrive: 5-Speed Feeder House Gear Case Failure & Full Tear Down Working on an S680 throwing a transmission supply pressure low code. Tracing the issue brought us to something Ive never seen fail before the 5-speed feeder house gear case. I always thought these things were bulletproof These gear cases have been in combines since the [--] Series and Ive never had to open one upuntil now. Want to see the best of ZK MasterTech Check out my top repair and service videos here: https://youtube.com/playlistlist=PLhGcsfw6sbwx66pEkZpqLd_SF8jASNMgY&si=1aomfCy5TJ8d19kf Want some ZK merch"
YouTube Link 2025-01-11T15:35Z 95.9K followers, 44.9K engagements
"The ULTIMATE fan drive upgrade Best way to improve your Vari-Cool fan drive John Deere [----] series In this video I am going to show you how and why you should upgrade your [----] series tractor Vari-Cool fan drive system. Are you tired of leaks fan speed codes and belt wear I have your answers in this video where I completely update a John Deere 9530T Vari-Cool fan drive system to the latest and greatest parts. You also might pick up some helpful repair tips and tricks along the way. #johndeere #johndeeretractor #johndeeretractorpower #tractor #agriculture #9530 CHECK OUT THE CERTIFIED WRENCH"
YouTube Link 2022-01-21T18:00Z 90.4K followers, 260.6K engagements
"Fixing Everything: 9570R [----] 8R [---] [----] & Even My Truck This one's got it allinjector swaps regen problems coolant system tricks DEF pressure codes truck upgrades and even a hydraulic leak fix on my crane. I start with the John Deere 9570R thats been having constant regen issues. Diagnostics pointed to weak injectors so I tore into the QSX 15.0L Cummins and got new ones installed. Next up a John Deere [----] sprayer with an ECU [------] manifold temperature high code. After fighting a stuck radiator valve I used a neat trick the next morning to bleed the two-part cooling systemand got that"
YouTube Link 2025-05-10T11:30Z 103K followers, 39.9K engagements
"Harvest carnage updates and a John Deere 9620RX gets a new turbo. Got a lot of carnage stories to tell X9 hydrostat pump failure S790 transmission failure S670 looses both front left duals (Major carnage) and a X9 gets it's unloading auger damaged from a grain cart. After I give you the updates I will show you how to replace the VGT turbo on a 15.0L QSX Cummins in a John Deere 9620RX. Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career"
YouTube Link 2024-10-19T18:37Z 92.1K followers, 73.8K engagements
"Worst air line to install ever Watch the full video on the channel. #johndeere #tools #farming"
YouTube Link 2025-03-01T03:35Z 90.7K followers, [----] engagements
"AutoTrac FAILS on a 9R [---] and the [----] Wont Stop Throwing Codes 😤 This one tested my patience. I start the day with a 1.5-hour drive to look at a John Deere 9R [---] where AutoTrac isnt working. After checking over the system and diagnostics I track down the issue and quickly get it sorted. Nothing like driving [---] hours to fix it in [--] min But then. its off to a [----] that just wont quit giving me trouble. Its been throwing ECU camshaft and crankshaft position codes all spring and Ive tried everything. The codes keep coming back. Now there's only one move left: run new wires directly from the"
YouTube Link 2025-04-18T23:30Z 103K followers, 48.8K engagements
"X9 [----] variable speed feeder house drive and unload auger repair. In this video I finally get to fix a vibration that haunted me all harvest. Going to replace the feeder house drive sheave assembly and variable speed belt. Also while Ive got it in the shop Im going to repair the unload auger because it is not going into the cradle correctly and will not latch. #johndeere #mechaniclife #X91000 #farmlife #farming #milwaukeetools #snapontools Check out Rak'd Audio https://www.getrakd.com Use promo code "ZK10" at checkout to get 10% off Want some ZK merch https://zk-mastertech.myspreadshop.com/"
YouTube Link 2024-01-05T13:00Z 87.6K followers, 58.6K engagements
"Oops. S780 Took Out a Power Pole Auger & Swing Cylinder Fix Well it happens every year In this video I show you how we repaired a John Deere S780 combine after it tangled with a power poletaking out the horizontal unloading auger and swing cylinder in the process. Luckily the new crane truck made this job a whole lot easier. We walk through the damage the parts we replaced and how we got everything back in working order fast. Harvest is starting to wind downjust a little corn left out thereand tillage work is picking up. This one was a solid mid-season recovery job. 💬 Let me know in the"
YouTube Link 2024-11-09T12:02Z 92.2K followers, 66.8K engagements
"John Deere 8310R ILS leak & Regeneration faults - Wrapping up harvest and field work Video sponsored by BRUNT: https://bruntworkwear.com/ZK10 use code "ZK10" for $10 off your first order of $60 or more In this video I've got a John Deere 8310R that has a major hydraulic leak on the ILS valve block and has regeneration faults. You will learn how to properly bleed the pressure down on the ILS fix the leak calibrate the ILS and learn what to look for when it will not complete a regeneration. Check out my merch store https://www.zk-mastertech.myspreadshop.com Interested in being a John Deere tech"
YouTube Link 2022-12-06T18:28Z 87.4K followers, 67K engagements
"John Deere S780 chopper damage. Thanks to BRUNT for sponsoring this video Get $10 off your first purchase with a 30-day risk-free trial at https://brunt.yt.link/OXtbGM2 using code ZK10. In this video I discovered some serious chopper and tailboard damage on an S780 combine after an inspection was performed. Three chopper hammers were found missing and the chopper started vibrating bad enough to start breaking the sheet metal of the chopper housing and tailboard housing. See what it takes to completely rebuild a chopper and powercast tailboard Want some ZK merch"
YouTube Link 2024-08-16T12:01Z 89.7K followers, 72.8K engagements
"Critical Repairs Before Harvest on this John Deere S790. Back at the shop with the John Deere S790 combine just [---] hours on it but already needing some serious attention. In this video I'm replacing the main hydraulic pump for a product improvement program leveling the concave fixing the sieve frame rubbing hard on the right-hand side centering the discharge beater to correct the belt drive alignment and doing a bunch of general maintenance to get it ready for harvest season. Stick around for a detailed walkthrough and honest assessment to keep this machine running strong. John Deere S790"
YouTube Link 2025-07-26T00:00Z 103K followers, 47.3K engagements
"John Deere 9560RT Hard Start FIXED Timing Issues Injector Replacement & Pro Tips This John Deere 9560RT came into the shop with a long crank/hard start issue after sitting and it wasnt going away. We already replaced the low-pressure fuel pump in a previous video but the problem persisted. In this episode I take you through the deep-dive diagnostic process that led to the real root cause: leaking injectors bleeding off fuel pressure. But that wasnt all during injector replacement I discovered the engine wasnt in proper time The crank and cam timing pins wouldnt go in forcing a full teardown"
YouTube Link 2025-07-12T12:01Z 103K followers, 75K engagements
"🔥 Stubborn Bolt Battle on a Mint [----] + [----] SCV Update & 8360R Prep Kicking things off with a quick update on the John Deere [----] and its ongoing SCV issue. Then I head to the farm to check out a super clean low-hour [----] that needs a little TLC before spring. The main problem A broken exhaust manifold bolt that does not want to come out without a fight. After winning that battle I knock out a few smaller fixes before prepping to dive into a bigger job on the John Deere 8360R which is going to take a solid two days of work. Wrenching diagnostics and classic green ironthis ones got it all"
YouTube Link 2025-03-28T23:00Z 96.2K followers, 66.4K engagements
"S680 5-Speed Gear Case Rebuild & Install Shifts Like Butter (Part 2) We finally got all the parts in to rebuild the 5-speed feeder house gear case on this John Deere S680. In this Part [--] video we walk through the full reassembly get it installed back into the combine and hook everything up. Want to see the best of ZK MasterTech Check out my top repair and service videos here: https://youtube.com/playlistlist=PLhGcsfw6sbwx66pEkZpqLd_SF8jASNMgY&si=1aomfCy5TJ8d19kf Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech"
YouTube Link 2025-01-24T13:03Z 92.2K followers, 27.4K engagements
"9620RX MAJOR Oil Leak + [----] Engine Lockup Harvest Service Calls [--] ✅ Its been one wild harvest and this round of service calls has everything from oil leaks to engine lockups First stop is a 9620RX with a MAJOR oil leak pouring from the front of the engine. Turns out the timing cover bolts came loose not something you see every day. Once thats sealed up and cleaned I head out to a 9RX [---] throwing low fuel pressure codes. A new set of filters fixes the problem but when I cut them open I find something you never want to see algae in the fuel system. Then I share the story of the previous day a"
YouTube Link 2025-11-09T00:00Z 103K followers, 55.1K engagements
"13.5L VGT turbo replacement on a John Deere 9510R Just got back to work after the 4th of July and the power is out at the shop so I am hitting the road to get some things done. Going to go do a VGT turbo replacement on a John Deere 9510R. When I get that done I give a little update on what's going on with the X9 [----] combine in the shop. Interested in becoming a Deere tech for Sloan's https://www.sloans.com/career Check out my merch store https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front Buy the tools I recommend https://www.amazon.com/shop/zkmastertech"
YouTube Link 2023-07-08T19:21Z 97.9K followers, 76.4K engagements
"Overrev Regen Fails & Electrical Chaos Deere Diagnostics Madness In just one day I tackled five different John Deere machines with problems ranging from wild overrevving to regen issues and full-on electrical chaos. These are real-world issuesand real-world fixes. I kick off in the shop with a [----] surging to [----] RPM at startup. Then I head to a 9570R with a Cummins QSX15 dealing with frequent regenerations. That leads to a quick but revealing diagnostic. Back in the shop I trace down a short in the [----] only to get pulled into a hub build for a 2660VT. then out again to troubleshoot a 9460R"
YouTube Link 2025-04-25T23:30Z 103K followers, 51.1K engagements
"X9 Repairs 8295R Axle Seals & 8235R Fan-to-Radiator Damage The spring rush is finally behind us and that means its time to bring the shop projects back in. In this video I head out to finish repairs on a John Deere X9 combine I inspected back in March replacing a feederhouse variable drive belt patching a worn-through clean grain elevator boot and checking off a few smaller jobs. Back at the shop weve got an 8295R that just sold and needs to be buttoned up. Service is done but the big job ahead is fixing a leaking [----] MFWD front axle seal. I also show a project Bens working on: an 8235R"
YouTube Link 2025-06-14T00:59Z 103K followers, 34.9K engagements
"John Deere X9 [----] track drive sprocket failure. Go to https://buyraycon.com/zkmastertech for 20-50% off sitewide Brought to you by Raycon On the previous video I got a call towards the end of the day about the drive sprocket falling off an X9. I went ahead and got it back together that evening so we could get it loaded up on a trailer the next day. We brought the customer another combine so he could keep rollin *Combine update: We converted this combine to [----] LSW tires because we could not get a final drive soon enough. Was not able to show this process sorry guys Want to see the best of"
YouTube Link 2024-10-11T17:00Z 98.8K followers, 430K engagements
"S790 Inspection Masterclass Everything You Need to Know This is the S790 Inspection Masterclass. In this video I take you through a full inspection of a John Deere S790 combine start to finish. Even though this machine only has [---] hours on it I still found more than I should have. Thats why it pays to be vigilant and check everything. Just because its low-hour doesnt mean its problem-free. Whether you're a seasoned operator experienced combine tech or new to S700 Series combines I break down exactly what to look for where issues hide and how to catch them before they cost you in the field."
YouTube Link 2025-06-28T12:00Z 103K followers, 35.7K engagements
"✅ [--] NEW Must-Have Milwaukee Tools That Are Game Changers in the Ag Shop In this video I test out [--] NEW Milwaukee Tools that are absolute game changers for the Ag shop. Milwaukee sent me their latest gear the M12 Heated Hoodie with HEXON Heat Technology the M18 Precision Blower and the M12 Underbody Light and I put them to work in real farm and service truck conditions. Each of these tools brings something new to the table for Ag mechanics. The heated hoodie keeps you comfortable through long cold days the M18 blower makes cleanup fast and efficient and the M12 underbody light completely"
YouTube Link 2025-11-07T00:00Z 103K followers, 17.3K engagements
"When you know the problem before even looking at it A couple moments of my newest video. Sometimes you know exactly whats wrong before you even get there. 8310R with hard steering when activating an SCV and a S780 combine with RC2 codes and the unloading auger will not swing"
YouTube Link 2025-10-18T22:54Z 103K followers, 34.4K engagements
"John Deere S680 Feeder House Floor Augers & Driveshaft Repairs + S790 service call Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/lZ2j90x or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support In this video Im out at a customers farm working on a John Deere S680. I start out replacing the feeder house floor and show you how it can be done by yourself with all the tips and tricks youll need. After that I quickly replace the middle and outer unload augers. The next morning I head out on my first harvest"
YouTube Link 2025-09-06T13:25Z 103K followers, 36.7K engagements
"Massey On Fire + Deere Wont Start 😬 #farmequipment #harvest2025 #zkmastertech Crazy day in the field. Massey tractor fire. John Deere [----] issue. 9560R completely dead. Just another harvest service call. 💚🔥 Check out the full video now What's the craziest fire/harvest story that's happened to you #JohnDeere #FarmLife #Mechanic #Harvest #TractorRepair #ServiceCall #FarmTok #DieselPower #AgLife #MasseyFerguson #GreenIron #ZKMasterTech"
YouTube Link 2025-10-28T01:59Z 103K followers, 36.3K engagements
"Tractor Trouble: 8310RT Breakdown 8370R CAN Faults 9570RT Regen Issues 9100s Gone In this episode the [----] saga takes a surprise turn as we finally install a new fuel pumpand then get some good news about its future. From there its straight into the heat with a roadside 8310RT that mysteriously wont move. until it does. I track down a couple hydraulic leaks and run tests but no hard fault found. Next up: a quick but critical fix on an 8370R with CAN bus gremlins traced back to the cab wiring. Then its back to the shop for an update on the 9100its outta here I wrap things up with a deep-dive"
YouTube Link 2025-05-17T00:15Z 103K followers, 43.6K engagements
"8295R [----] MFWD Axle Seal Replacement + [----] Rescue Mission In this video I start repairs on a John Deere 8295R with a leaking axle seal on the [----] MFWD front axle. I remove the final drive and knuckle but before I can finish the job I get called out to rescue a John Deere [----] thats dead in the fieldno hydraulics no transmission and stuck in a ditch. I get it loaded on a semi and hauled back to the shop. Then its back to the 8295R to wrap up the axle seal job and get it back together. Field breakdowns heavy repairs and real-world problem solvingjust another day keeping that green iron"
YouTube Link 2025-07-04T12:00Z 103K followers, 171.5K engagements
"John Deere 8370R has a major hydraulic oil leak. Getting the job done with the Stellar T-MAX In this video I will be repairing a couple hydraulic oil leaks on a Deere 8370R. Going to have to remove the duals to get access to a blown hose. Got to love hydraulic oil leaks on tractors in the spring time #johndeere #johndeeretractor #johndeere8r @StellarIndustries Want some ZK merch https://zk-mastertech.myspreadshop.com/ Check out my Amazon store front https://www.amazon.com/shop/zkmastertech Want a career with Sloan Implement https://www.sloans.com/career To buy the Carpuride W702 for a"
YouTube Link 2024-05-26T01:25Z 98K followers, 101.6K engagements
"Farm Progress Show [----] New MONSTER 9RX [---] + Game-Changing S780 Repair Tips I finally made it to the Farm Progress Show in Decatur IL and this year I was set up in the Sloan Implement / Sloan Express booth It was my first ever public appearance since starting this YouTube channel and it was awesome getting to meet so many of you in person. Thanks to everyone who stopped by to talk shop pick up some merch and support the channel. While I was there I had a chance to connect with a few great companies: Kampag the makers of the new high-performance feed accelerator upgrade kit for S-Series"
YouTube Link 2025-08-30T12:00Z 103K followers, 29.4K engagements
"John Deere S680 ProDrive hydrostatic pump failure. In this video I finally get to do the repairs on the John Deere S680 combine that suffered a hydrostatic pump failure in the field. I recovered this combine from the field and had it hauled back to the shop. We cannot run the engine on this combine because the pump is locked up. A pump failure of this magnitude is probably the worst hydraulic failure you can have on a combine Theres just metal everywhere I am going to have to replace a lot of parts to get this combine to move again. This is one of the most time consuming jobs you can do on a"
YouTube Link 2022-02-05T13:57Z 97.9K followers, 151.8K engagements
"The [----] Refuses to Run and the 8Rs Fan Goes Full Turbo The John Deere [----] saga continues After running new wires from the injection pump to the ECU Im still chasing down the issueand now its worse than ever. Then I jump over to one of my favorites: a John Deere 8R [---]. I break down how the new electronic viscous fan clutch works diagnose an electrical fault that's sending the fan to full RPM and replace the failed clutch. Back in the shop its time to pull the 9100s pump and send it to the pump shop for internal harness repairs. Finally I show off a new 4000-watt inverter for my RAM service"
YouTube Link 2025-05-03T01:00Z 103K followers, 41.6K engagements
"The path of the kernel explained See how a combine works The path of the kernel is a lesson I give to every technician I train on combines. Understanding the path the grain takes and how the combine separates the grain from residue is an important thing to know as a technician. Also I will show you the new technology on the John Deere S780 combine that helps the operator achieve the optimal grain quality. I will also explain how the combine calculates yield data in real time. At the end of the video I will show off a cool new Milwaukee M18 transfer pump that I bought that is going to make my"
YouTube Link 2023-04-07T15:18Z 98K followers, 115.4K engagements
"Game-Changing Upgrade for John Deere S790 Sloan Express Feed Accelerator Install 🚨 MASSIVE COMBINE UPGRADE ALERT S790 GETS A POWER BOOST 🚨 In this video we're upgrading a John Deere S790 with the new High-Performance Wide Body Feed Accelerator Kit from Sloan Express and Im walking you through the full install step-by-step. 🔗 Order the Sloan Express Feed Accelerator Kit here: https://www.sloanex.com/combine-high-performance-feed-accelerator-kit-fits-john-deere.html This isnt just a parts swap this is a serious performance upgrade field-tested in over [----] combines worldwide and now"
YouTube Link 2025-07-19T00:00Z 103K followers, 44.5K engagements
"One day we won't need operators in the driver's seat New X9 with ultimate technology package In this video I start with a quick update on the John Deere S770 combine Ive been working on and finally track down the issue with the feeder house speed adjustment. Then its off to a service call on a John Deere 9410R that wont throttle up before checking in back at the shop where Macen is tearing into a big 9.0L overhaul project on a [----] STS combine. To wrap things up I get to show off the all-new [----] John Deere X9 [----] with the Ultimate Technology Package I go over the predictive ground speed"
YouTube Link 2025-08-23T12:01Z 103K followers, 44.8K engagements
"John Deere 8R series SCV coupler repairs. In this video I will show you how to replace the SCV couplers on an John Deere 8R tractor. These style couplers have been used for a long time and you can use this repair process for a variety of tractors like the [----] series [----] series 8R and 9R tractors. The tractor that I am repairing is a John Deere 8370R that I previously did work on. Took awhile to get the SCV couplers in so I am just now getting to put them in. Plus stick around for the bonus content of this video I will show you how to check grain loss monitor sensors in a John Deere S680"
YouTube Link 2022-08-28T14:16Z 99.7K followers, 54.5K engagements
"John Deere X9 variable pitch fan video out now"
YouTube Link 2025-02-20T04:48Z 91.1K followers, [----] engagements
"Learn how to inspect a John Deere S-Series Combine Learn how to inspect a John Deere S-Series Combine like a pro In this video we have an S670 combine and I'll cover what things to check for when inspecting an S-Series combine. #johndeere #s670 #s-seriescombines #harvest Music from soundstripe Code: 3OL0JGATUPZ2WM9W"
YouTube Link 2021-08-15T17:09Z 98.5K followers, 124K engagements
"John Deere [----] water pump disaster (Part 2) The work is just beginning on the [----]. Now that the engine has been condemned its time to start rebuilding the complete block assembly. #johndeere #johndeere9430 #johndeerewrenching #johndeereagtech #johndeeretractorpower"
YouTube Link 2021-04-02T13:02Z 99.8K followers, 156.4K engagements
"9R breakdowns & S670 engine Backfires Through the Intake Shes About to Blow It starts off innocent enough just a 9570R setting an ECM [-------] Intake NOx Sensor Fault and a [------] Low Fuel Pressure Code. I fix those issues and think the days turning around but its not. This video takes you through one of the craziest chains of breakdowns Ive had in a while: The 9570R gets new filters and a NOx sensor to clear its codes. My new shop project a 9510R comes in with both the EGR cooler and oil cooler failed coolant and soot contamination everywhere. Rain sends me indoors to rebuild and flush that"
YouTube Link 2025-11-01T20:00Z 103K followers, 82.5K engagements
"John Deere S790 sieve frame replacement & discharge beater fix perfect shoe alignment achieved Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/0UzfBF0 or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support Back on the John Deere S790 This time Im finishing the sieve frame repairs. I remove the sieve frame replace the side sheets and square everything up perfectly. Before reinstalling I tackle a discharge beater thats off-center in the machine. Even with the aggression level at [--] it wouldnt budge I had to cut"
YouTube Link 2025-08-02T12:32Z 103K followers, 35.2K engagements
"Rear Drive GONE 9RX Would Only Pull With the Front Tracks Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/FjvboEk using code ZKMASTERTECH. Milwaukee M12 1/2" Stubby Impact Kit: https://www.homedepot.com/p/Milwaukee-M12-FUEL-12V-Li-Ion-Brushless-Cordless-Stubby-1-2-in-Impact-Wrench-Kit-w-1-5-0Ah-1-2-5-Ah-High-Output-Batteries-2563-22/331534715 This one launches HARD right out of the gate. We kick off Harvest [--] Service Calls Episode [--] with a 9RX [---] thats only got the front tracks pulling and a code for extremely low axle lube pressure. A"
YouTube Link 2025-11-22T15:01Z 103K followers, 71K engagements
"⚠ S780 wont swing unloading auger 💪 8310R hard steering 🔥 The X9 Strikes Again In this episode of Harvest Service Calls I start with an 8310R thats got steering issues traced back to blown O-rings in the priority valve. Then its back to the X9 1000yep replacing that unloading auger swing cylinder again after the cushioning seals got damaged. After that I tackle an S780 combine with RC2 controller faults that keep the auger from swinging out and show how to correctly replace and protect those Cinch terminals. Finally I get back on the X9 project to install the center unloading auger and take"
YouTube Link 2025-10-18T11:01Z 103K followers, 46.3K engagements
"9620R QSX15 Cummins died and will not start. (Part 1) Got a John Deere 9620R with a QSX15 Cummins that was getting ECU stop codes for DPF and SCR temperatures extremely high then it died like it ran out of fuel and will not restart. Got to get this tractor up and running so we can at least get it back to the shop for further repairs. Diagnosis led to replacing the high pressure fuel pump so Josh and I are going to head out there and get the pump replaced and see if we can get this beast back alive. #johndeere #johndeeretractor #qsx15 #cummins #cumminspower #johndeerewrenching Follow me on"
YouTube Link 2023-11-24T15:38Z 98.7K followers, 148.5K engagements
"Service Call CHAOS 😳 Massey Fire + Dead 9R in the Woods Harvest [--] #7 Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/GdPPrnW using code ZKMASTERTECH. #zkmastertech #farmequipment #harvest2025 In this episode of Harvest [--] Service Calls 00:00 🚒 Fire Tease Massey emergency 00:34 🧠 John Deere [----] Camshaft position fault diagnosis 05:40 🔧 [----] Twisted pair signal wire repair (EMI issue) 08:22 📉 S780 Feederhouse 5-speed clutch smoked (trans pressure low) 10:04 🌬 [----] STS ECU [-------] charge air leak + 9570R low DEF dosing pressure 13:36 🛑"
YouTube Link 2025-10-25T20:00Z 103K followers, 88.8K engagements
"Come meet me at the National Farm machinery show Sloan Express booth [----] #nfms"
YouTube Link 2026-02-14T13:25Z 103K followers, [----] engagements
"Hydraulic Nightmare This John Deere [----] Had ZERO Oil Pressure What started as a simple service call on a John Deere [----] that wouldnt start quickly turned into a full hydraulic nightmare. After getting the tractor running and driving it I found it had zero hydraulics and absolutely no charge pressure. The tractor was hauled back to the shop for further diagnosis and things only got worse from there. During testing there was no charge pressure and not even a drop of oil coming out of the charge pump outlet. After draining the oil and removing the sump screen the problem became clear the"
YouTube Link 2026-02-13T20:00Z 103K followers, 34.6K engagements
"Major Failure Inside This S780 [--] Speed Feeder House Gear Case Last harvest season this John Deere S780 combine came to a stop in the field with low transmission supply pressure. Field diagnostics led to a failure inside the [--] speed feeder house gear case specifically the C91 (first gear) clutch. After the season ended the customer brought the combine into the shop so the machine could be torn down and repaired properly. In this video the combine is brought into the shop and disassembled for repair. The duals and gull wing door had to be removed for access along with drive shafts hydraulic"
YouTube Link 2026-02-07T21:00Z 103K followers, 44.2K engagements
"After Everything This [----] Went Through This Is the Moment This is the final chapter of the John Deere [----] engine saga. After a catastrophic engine failure and draining oil full of bearing material this tractor has been torn down rebuilt and put back together one system at a time. Today is the moment where everything comes together or doesnt. There are no guarantees at this stage. After everything this tractor has been through it all comes down to one turn of the key. In this video I walk through installing the replacement engine reconnecting the fuel system cooling system charge air wiring"
YouTube Link 2026-01-31T21:00Z 103K followers, 41.7K engagements
"Replacing a Failed 12.5L John Deere [----] Complete Block Build This John Deere [----] didnt just need parts it needed a second chance. In this video I take a completely failed 12.5L engine and build a brand-new complete block assembly from the stand up showing every critical step along the way. The original engine failure was caused by a failed water pump that allowed coolant to intrude into the engine oil which led to main bearing failure and rapid internal engine damage. This was not operator error or neglect once coolant contamination occurs bearing damage can escalate quickly and replacement"
YouTube Link 2026-01-24T20:30Z 103K followers, 58.9K engagements
"The Most Optioned $1M John Deere X9 Full Inspection Back at the farm with one of the most impressive machines Ive ever inspected a brand-new John Deere X9 [----] thats only run one season equipped with the Ultimate Technology Package and literally every option Ive ever seen. This is a true million-dollar combine and in this video I walk through a complete front-to-back inspection showing exactly what I look for on an X9 and the key areas that deserve extra attention. Using the Shop Dog Industries CBX combine turning tool I break this machine down section by section feederhouse tracks residue"
YouTube Link 2026-01-17T16:00Z 103K followers, 33.5K engagements
"X9 Shop Repairs & a Look at a $1M X9 X9 shop repairs: clean grain elevator overhaul + cleaning fan belt & sheave maintenance. Plus a quick look at a $1M X9 [----] and a [----] engine surprise back at the shop. We kick this one off with a quick [----] update (and a teaser of whats coming) then dive straight into the X9 clean grain elevator work: paddle chain removal belt de-tension top sprocket chain install and lower auger install. From there I tighten everything back up and move into the cleaning fan drive belt driven sheave oil change and fan belt install. We also run into a midfloor issue that"
YouTube Link 2026-01-10T16:00Z 103K followers, 52.7K engagements
"Worst Equipment Carnage I've Ever Seen This video is a compilation of the worst equipment carnage Ive seen real-world failures caught during diagnostics in both the field and the shop. From catastrophic engine damage and transmission failures to hydrostatic pumps completely puking their guts out to failed axle bearings a harness fire and machines instantly taken out of service this video shows what failure actually looks like when it happens for real. This compilation pulls together failures from dozens of different machines across multiple model lines tractors combines and harvest equipment"
YouTube Link 2026-01-03T16:00Z 103K followers, 92.6K engagements
"Oil Pressure Was In Spec Then This [----] Engine Destroyed Itself This is a follow-up to the John Deere [----] with a 12.5L engine that suffered a catastrophic engine failure after a water pump failure allowed coolant into the crankcase. The water pump was replaced the crankcase flushed oil and filters changed and oil pressure checked. Everything looked acceptable on paper. This video is part of the Winter Shop Projects series (Episode 4). Cold oil pressure was strong. Hot oil pressure was lower but still within minimum specification. To fully evaluate it under load we took the tractor to the"
YouTube Link 2025-12-29T21:00Z 103K followers, 119.1K engagements
"We Put It Back Together Did This 9.0L Survive Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/PKfEl6p using code ZKMASTERTECH. Before tearing into reassembly heres some background on why this engine was removed in the first place. This John Deere S670 came in with a running issue that led to finding a failed intake valve. What started as a single component failure had the potential to cause major engine damage if it was put back into service. To be absolutely sure there were no additional issues hiding below the surface the decision was made"
YouTube Link 2025-12-20T21:00Z 103K followers, 45.7K engagements
"Small Problem HUGE Repair Intake Valve Failure on a 9.0L We start off with a look at the intake valve failure on the 9.0L engine out of the S670 combine. Before this engine can go back into the machine I dig into replacing the water pump and the leaking main engine gear case input shaft seal. Once thats handled we shift gears while waiting on the cylinder head to return from the machine shop. Next up is an X9 [----] clean grain auger repair back at the shop. And then the next morning its time to brave the cold. I throw on the gear and head out to a Bron [---] tile plow throwing DEF system faults."
YouTube Link 2025-12-13T21:00Z 103K followers, 60.1K engagements
"S670 Engine REMOVAL & Tear-Down You Wont Believe What I Found Inside I just reached 100K subscribers and I want to thank every single one of you for helping me get here. Your support means more than you know. Now we dive into a brand-new series: [----] Winter Shop Projects. First up is a John Deere S670 I looked at this fall that was throwing an intake manifold air temperature high code and derating the engine. During my initial diagnosis I suspected an intake valve issue around cylinder [--] based on the compression noise in the intake and how fast the sensor was heating. We had the combine"
YouTube Link 2025-12-06T21:00Z 103K followers, 106.4K engagements
"The [----] That REFUSES to Run Today was a big diagnostic day in the shop. The main issue A John Deere [----] that starts runs for a few seconds and dies until it finally goes completely dead. This wasnt a battery issue. This was electronic: CAN power grounds relays ECU failure and everything in between. Follow along as I test trace and finally track down the culprit. Also included in this video: Diagnosing a 9620RX that wont throttle up Full road test after verifying active codes Replacing the DEF dosing unit on the 9620RX Swapping and programming the ECU on the [----] Cold-weather gear-up segment"
YouTube Link 2025-11-30T00:00Z 103K followers, 85.2K engagements
"Rear Drive GONE 9RX Would Only Pull With the Front Tracks Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/FjvboEk using code ZKMASTERTECH. Milwaukee M12 1/2" Stubby Impact Kit: https://www.homedepot.com/p/Milwaukee-M12-FUEL-12V-Li-Ion-Brushless-Cordless-Stubby-1-2-in-Impact-Wrench-Kit-w-1-5-0Ah-1-2-5-Ah-High-Output-Batteries-2563-22/331534715 This one launches HARD right out of the gate. We kick off Harvest [--] Service Calls Episode [--] with a 9RX [---] thats only got the front tracks pulling and a code for extremely low axle lube pressure. A"
YouTube Link 2025-11-22T15:01Z 103K followers, 71K engagements
"It Ate Something BAD 💥 Shop Carnage + Harvest Fixes The harvest just wont end and neither do the breakdowns. We start by rescuing a [----] with a locked-up enginewinching it onto a drop-deck with an 8R doing the pulling and steering hoses to snake it onto a trailer it barely fits. Then its an S790 with a DEF dosing pressure fault (bad pressure sensor in the dosing unit). Swap the sensor back to combining corn. Next an 8R [---] with no cab heatdiagnostics point to a stuck-closed water valve (temperature actuator). Fixed and warm again. On to an S780 thats losing prime all fall and hates cold"
YouTube Link 2025-11-15T15:00Z 103K followers, 83.8K engagements
"9620RX MAJOR Oil Leak + [----] Engine Lockup Harvest Service Calls [--] ✅ Its been one wild harvest and this round of service calls has everything from oil leaks to engine lockups First stop is a 9620RX with a MAJOR oil leak pouring from the front of the engine. Turns out the timing cover bolts came loose not something you see every day. Once thats sealed up and cleaned I head out to a 9RX [---] throwing low fuel pressure codes. A new set of filters fixes the problem but when I cut them open I find something you never want to see algae in the fuel system. Then I share the story of the previous day a"
YouTube Link 2025-11-09T00:00Z 103K followers, 55.1K engagements
"✅ [--] NEW Must-Have Milwaukee Tools That Are Game Changers in the Ag Shop In this video I test out [--] NEW Milwaukee Tools that are absolute game changers for the Ag shop. Milwaukee sent me their latest gear the M12 Heated Hoodie with HEXON Heat Technology the M18 Precision Blower and the M12 Underbody Light and I put them to work in real farm and service truck conditions. Each of these tools brings something new to the table for Ag mechanics. The heated hoodie keeps you comfortable through long cold days the M18 blower makes cleanup fast and efficient and the M12 underbody light completely"
YouTube Link 2025-11-07T00:00Z 103K followers, 17.3K engagements
"9R breakdowns & S670 engine Backfires Through the Intake Shes About to Blow It starts off innocent enough just a 9570R setting an ECM [-------] Intake NOx Sensor Fault and a [------] Low Fuel Pressure Code. I fix those issues and think the days turning around but its not. This video takes you through one of the craziest chains of breakdowns Ive had in a while: The 9570R gets new filters and a NOx sensor to clear its codes. My new shop project a 9510R comes in with both the EGR cooler and oil cooler failed coolant and soot contamination everywhere. Rain sends me indoors to rebuild and flush that"
YouTube Link 2025-11-01T20:00Z 103K followers, 82.5K engagements
"Massey On Fire + Deere Wont Start 😬 #farmequipment #harvest2025 #zkmastertech Crazy day in the field. Massey tractor fire. John Deere [----] issue. 9560R completely dead. Just another harvest service call. 💚🔥 Check out the full video now What's the craziest fire/harvest story that's happened to you #JohnDeere #FarmLife #Mechanic #Harvest #TractorRepair #ServiceCall #FarmTok #DieselPower #AgLife #MasseyFerguson #GreenIron #ZKMasterTech"
YouTube Link 2025-10-28T01:59Z 103K followers, 36.3K engagements
"Service Call CHAOS 😳 Massey Fire + Dead 9R in the Woods Harvest [--] #7 Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/GdPPrnW using code ZKMASTERTECH. #zkmastertech #farmequipment #harvest2025 In this episode of Harvest [--] Service Calls 00:00 🚒 Fire Tease Massey emergency 00:34 🧠 John Deere [----] Camshaft position fault diagnosis 05:40 🔧 [----] Twisted pair signal wire repair (EMI issue) 08:22 📉 S780 Feederhouse 5-speed clutch smoked (trans pressure low) 10:04 🌬 [----] STS ECU [-------] charge air leak + 9570R low DEF dosing pressure 13:36 🛑"
YouTube Link 2025-10-25T20:00Z 103K followers, 88.8K engagements
"When you know the problem before even looking at it A couple moments of my newest video. Sometimes you know exactly whats wrong before you even get there. 8310R with hard steering when activating an SCV and a S780 combine with RC2 codes and the unloading auger will not swing"
YouTube Link 2025-10-18T22:54Z 103K followers, 34.4K engagements
"⚠ S780 wont swing unloading auger 💪 8310R hard steering 🔥 The X9 Strikes Again In this episode of Harvest Service Calls I start with an 8310R thats got steering issues traced back to blown O-rings in the priority valve. Then its back to the X9 1000yep replacing that unloading auger swing cylinder again after the cushioning seals got damaged. After that I tackle an S780 combine with RC2 controller faults that keep the auger from swinging out and show how to correctly replace and protect those Cinch terminals. Finally I get back on the X9 project to install the center unloading auger and take"
YouTube Link 2025-10-18T11:01Z 103K followers, 46.3K engagements
"X9 Turbo Leak S780 Transmission and separator clutch Failure X9 hits a pole with unloading auger Thanks to Rakd Audio for sponsoring this video Go to https://getrakd.com and use discount code ZK10 to get 10% off your purchase on the new V2.1 Bluetooth speaker In this episode of Harvest [----] Service Calls [--] the week starts out with an X9 combine thats leaking coolant out of the turbo box on the big 13.6L engine. Then its back to the shop where I show off my brand new Rakd Audio Bluetooth Ammo Can Speaker this things built tough and sounds awesome. Next up I dig into an S780 in the shop thats"
YouTube Link 2025-10-11T11:00Z 103K followers, 48.3K engagements
"8RX [---] track 9360R Radiator X9 Issues & S780 Electrical Gremlins Harvest [----] Service Calls [--] In Harvest [----] Service Calls [--] its another packed round of field and shop repairs during one of the busiest times of the year. The day kicks off with a John Deere S660 throwing a fuel dosing inlet pressure fault. Then its on to a 9360R with a leaking radiator and an X9 [----] with a bad unloading auger latch assembly. Next up an S780 in the field develops strange electrical issues traced to bad grounds and a software glitch. An S680 rolls in with a shredded chopper jackshaft belt a leaking grain"
YouTube Link 2025-10-04T11:30Z 103K followers, 50K engagements
"Fuel Pump Failure DEF Issues & X9 Breakdowns Harvest Service Calls [----] Ep. [--] Thanks to BRUNT for sponsoring this video Get $10 off your first purchase at https://brunt.yt.link/CoYsW9u using code ZKMASTERTECH. This round of harvest service calls is packed with repairs across multiple machines. I start out with a John Deere S670 throwing a PTP code for the reverse pressure sensor on the ProDrive hydrostatic pump. After thats resolved its on to an S680 with a leaking separator drive hydraulic cylinder and then a 9370R with emissions codes. From there I check out a combine in the shop with a"
YouTube Link 2025-09-27T10:44Z 103K followers, 55.6K engagements
"Major Combine Repairs in the Heat of Harvest Good ol' [--] Series combine Got to love it Its harvest season which means the service calls dont stop. In this video I cover a full round of combine repairs diagnostics and field fixes: Update on the John Deere S790 getting a complete cleaning shoe rebuild in the shop Service call on an S780 throwing emissions codes diagnosed a bad aftertreatment temp module replaced it and ran a regen John Deere [----] with a bad header lift control valve that left the header stuck on the ground S680 with a grain tank cover and fountain auger fold problem S7800 with"
YouTube Link 2025-09-20T12:35Z 103K followers, 67.7K engagements
"Chasing Harvest Breakdowns Service Calls Across Multiple Days (EP. 1) Kicking off my brand-new series Harvest [----] Service Calls 🌽🚜 Over the course of several busy harvest days I hit the road to tackle a wide variety of breakdowns diagnostics and repairs. Each day brings something different and you never know where the next call will take me. We start with an update on the S680 Ive been working on then head out to a John Deere S670 with a banging noise in the cleaning shoe. The pre-cleaner was about ready to fall out causing damage to the pre-cleaner chaffer and sieve elements all of which"
YouTube Link 2025-09-13T01:20Z 103K followers, 32.8K engagements
"John Deere S680 Feeder House Floor Augers & Driveshaft Repairs + S790 service call Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/lZ2j90x or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support In this video Im out at a customers farm working on a John Deere S680. I start out replacing the feeder house floor and show you how it can be done by yourself with all the tips and tricks youll need. After that I quickly replace the middle and outer unload augers. The next morning I head out on my first harvest"
YouTube Link 2025-09-06T13:25Z 103K followers, 36.7K engagements
"Farm Progress Show [----] New MONSTER 9RX [---] + Game-Changing S780 Repair Tips I finally made it to the Farm Progress Show in Decatur IL and this year I was set up in the Sloan Implement / Sloan Express booth It was my first ever public appearance since starting this YouTube channel and it was awesome getting to meet so many of you in person. Thanks to everyone who stopped by to talk shop pick up some merch and support the channel. While I was there I had a chance to connect with a few great companies: Kampag the makers of the new high-performance feed accelerator upgrade kit for S-Series"
YouTube Link 2025-08-30T12:00Z 103K followers, 29.4K engagements
"One day we won't need operators in the driver's seat New X9 with ultimate technology package In this video I start with a quick update on the John Deere S770 combine Ive been working on and finally track down the issue with the feeder house speed adjustment. Then its off to a service call on a John Deere 9410R that wont throttle up before checking in back at the shop where Macen is tearing into a big 9.0L overhaul project on a [----] STS combine. To wrap things up I get to show off the all-new [----] John Deere X9 [----] with the Ultimate Technology Package I go over the predictive ground speed"
YouTube Link 2025-08-23T12:01Z 103K followers, 44.8K engagements
"John Deere S770 Combine Major Feederhouse Rebuild Hydraulic Fixes & PowerCast Upgrades Back on the John Deere S770 combine for a full round of inspections repairs and upgrades. What started as a simple grease seal issue on the variable speed feederhouse drive turned into a complete rebuild with multiple new parts and a full reassembly including a step-by-step on putting the upper variable back together and adjusting the speed correctly. Other repairs and upgrades in this video include: Replacing the broken shoe auger drive bearing Vertical auger gearbox rebuild & auger replacement Installing"
YouTube Link 2025-08-16T12:01Z 103K followers, 35.2K engagements
"First Look: John Deere S7 [---] Through a Master Technicians Eyes In this video I take you on my very first master technician walkthrough of the all-new John Deere S7 [---] combine. Forget the usual salesman tour this is a deep dive into the nuts and bolts of every upgrade Deere packed into this machine. From the redesigned cab and powerhouse engine to next-level cleaning systems and cutting-edge electronics I break down all the real improvements and share my honest unfiltered opinion. This is the very first S7 combine Ive had the chance to check out so youre getting my raw first reactions to"
YouTube Link 2025-08-09T11:42Z 103K followers, 72.3K engagements
"John Deere S790 sieve frame replacement & discharge beater fix perfect shoe alignment achieved Get 50% off your first box of freshly made healthy dog food by heading to https://thefarmersdog.yt.link/0UzfBF0 or scanning the QR code on screen. Plus get FREE shipping and 24/7 customer support Back on the John Deere S790 This time Im finishing the sieve frame repairs. I remove the sieve frame replace the side sheets and square everything up perfectly. Before reinstalling I tackle a discharge beater thats off-center in the machine. Even with the aggression level at [--] it wouldnt budge I had to cut"
YouTube Link 2025-08-02T12:32Z 103K followers, 35.2K engagements
"Critical Repairs Before Harvest on this John Deere S790. Back at the shop with the John Deere S790 combine just [---] hours on it but already needing some serious attention. In this video I'm replacing the main hydraulic pump for a product improvement program leveling the concave fixing the sieve frame rubbing hard on the right-hand side centering the discharge beater to correct the belt drive alignment and doing a bunch of general maintenance to get it ready for harvest season. Stick around for a detailed walkthrough and honest assessment to keep this machine running strong. John Deere S790"
YouTube Link 2025-07-26T00:00Z 103K followers, 47.3K engagements
"Game-Changing Upgrade for John Deere S790 Sloan Express Feed Accelerator Install 🚨 MASSIVE COMBINE UPGRADE ALERT S790 GETS A POWER BOOST 🚨 In this video we're upgrading a John Deere S790 with the new High-Performance Wide Body Feed Accelerator Kit from Sloan Express and Im walking you through the full install step-by-step. 🔗 Order the Sloan Express Feed Accelerator Kit here: https://www.sloanex.com/combine-high-performance-feed-accelerator-kit-fits-john-deere.html This isnt just a parts swap this is a serious performance upgrade field-tested in over [----] combines worldwide and now"
YouTube Link 2025-07-19T00:00Z 103K followers, 44.5K engagements
"John Deere 9560RT Hard Start FIXED Timing Issues Injector Replacement & Pro Tips This John Deere 9560RT came into the shop with a long crank/hard start issue after sitting and it wasnt going away. We already replaced the low-pressure fuel pump in a previous video but the problem persisted. In this episode I take you through the deep-dive diagnostic process that led to the real root cause: leaking injectors bleeding off fuel pressure. But that wasnt all during injector replacement I discovered the engine wasnt in proper time The crank and cam timing pins wouldnt go in forcing a full teardown"
YouTube Link 2025-07-12T12:01Z 103K followers, 75K engagements
"8295R [----] MFWD Axle Seal Replacement + [----] Rescue Mission In this video I start repairs on a John Deere 8295R with a leaking axle seal on the [----] MFWD front axle. I remove the final drive and knuckle but before I can finish the job I get called out to rescue a John Deere [----] thats dead in the fieldno hydraulics no transmission and stuck in a ditch. I get it loaded on a semi and hauled back to the shop. Then its back to the 8295R to wrap up the axle seal job and get it back together. Field breakdowns heavy repairs and real-world problem solvingjust another day keeping that green iron"
YouTube Link 2025-07-04T12:00Z 103K followers, 171.5K engagements
"S790 Inspection Masterclass Everything You Need to Know This is the S790 Inspection Masterclass. In this video I take you through a full inspection of a John Deere S790 combine start to finish. Even though this machine only has [---] hours on it I still found more than I should have. Thats why it pays to be vigilant and check everything. Just because its low-hour doesnt mean its problem-free. Whether you're a seasoned operator experienced combine tech or new to S700 Series combines I break down exactly what to look for where issues hide and how to catch them before they cost you in the field."
YouTube Link 2025-06-28T12:00Z 103K followers, 35.7K engagements
"X9 Rock Damage Elevator Repairs & Serious Chopper Upgrade Back on the John Deere X9 [----] for more repairs and upgrades. I finish up work on the clean grain elevator by replacing both the top and bottom chain sprockets and installing a new lower elevator boot. Then I get into some serious rock damage in the discharge beater that needs attention. Finally its time for a major chopper upgrade removing the powercast tailboard installing an updated chopper floor and bolting in some aggressive powercast paddles to keep this thing from plugging. This ones all about pushing through and keeping that"
YouTube Link 2025-06-20T23:30Z 103K followers, 30.2K engagements
"X9 Repairs 8295R Axle Seals & 8235R Fan-to-Radiator Damage The spring rush is finally behind us and that means its time to bring the shop projects back in. In this video I head out to finish repairs on a John Deere X9 combine I inspected back in March replacing a feederhouse variable drive belt patching a worn-through clean grain elevator boot and checking off a few smaller jobs. Back at the shop weve got an 8295R that just sold and needs to be buttoned up. Service is done but the big job ahead is fixing a leaking [----] MFWD front axle seal. I also show a project Bens working on: an 8235R"
YouTube Link 2025-06-14T00:59Z 103K followers, 34.9K engagements
"9570R Field Fix 3046R fuel sender and a Shop Head-Scratcher on the 8360RT Back on the road with a quick service call to repair a DEF priming issue on a John Deere 9570R that I previously diagnosed. That job goes quickbut next up is something outside my usual horsepower range: a John Deere 3046R compact tractor with a faulty fuel sender. I usually stick to 200+ HP equipment but this one turns into a full-on tank removal to get the job done. Then its back at the shop where I dig into a new project: a John Deere 8360RT with hydraulic oil that's overheating. It's not a simple fixand I'm still"
YouTube Link 2025-05-31T13:00Z 103K followers, 37.5K engagements
"Pure Grit: [----] ECU Hail Mary Electrical Gremlins & Wrenching Past Sundown. This ones all about pushing throughno matter what it takes. The saga of the John Deere [----] finally comes to a head with one last HAIL MARY: a new ECU and a sketchy benchtop reprogramming trick and it WORKED. The [----] is back from the dead and running strong. But no rest for the wearynext up is a 9560RT with starting issues. Quick diagnosis points to a failed low-pressure fuel pump and were back the next day to knock it out. Then the 8310RT throws a new curveballzero cab power. After chasing down hidden electrical"
YouTube Link 2025-05-24T14:00Z 103K followers, 46K engagements
"Update: The 9570RT is fixed Injectors fixed the issue. Check out the full video"
YouTube Link 2025-05-22T02:42Z 103K followers, 18.3K engagements
"Tractor Trouble: 8310RT Breakdown 8370R CAN Faults 9570RT Regen Issues 9100s Gone In this episode the [----] saga takes a surprise turn as we finally install a new fuel pumpand then get some good news about its future. From there its straight into the heat with a roadside 8310RT that mysteriously wont move. until it does. I track down a couple hydraulic leaks and run tests but no hard fault found. Next up: a quick but critical fix on an 8370R with CAN bus gremlins traced back to the cab wiring. Then its back to the shop for an update on the 9100its outta here I wrap things up with a deep-dive"
YouTube Link 2025-05-17T00:15Z 103K followers, 43.6K engagements
"Fixing Everything: 9570R [----] 8R [---] [----] & Even My Truck This one's got it allinjector swaps regen problems coolant system tricks DEF pressure codes truck upgrades and even a hydraulic leak fix on my crane. I start with the John Deere 9570R thats been having constant regen issues. Diagnostics pointed to weak injectors so I tore into the QSX 15.0L Cummins and got new ones installed. Next up a John Deere [----] sprayer with an ECU [------] manifold temperature high code. After fighting a stuck radiator valve I used a neat trick the next morning to bleed the two-part cooling systemand got that"
YouTube Link 2025-05-10T11:30Z 103K followers, 39.9K engagements
"The [----] Refuses to Run and the 8Rs Fan Goes Full Turbo The John Deere [----] saga continues After running new wires from the injection pump to the ECU Im still chasing down the issueand now its worse than ever. Then I jump over to one of my favorites: a John Deere 8R [---]. I break down how the new electronic viscous fan clutch works diagnose an electrical fault that's sending the fan to full RPM and replace the failed clutch. Back in the shop its time to pull the 9100s pump and send it to the pump shop for internal harness repairs. Finally I show off a new 4000-watt inverter for my RAM service"
YouTube Link 2025-05-03T01:00Z 103K followers, 41.6K engagements
"Overrev Regen Fails & Electrical Chaos Deere Diagnostics Madness In just one day I tackled five different John Deere machines with problems ranging from wild overrevving to regen issues and full-on electrical chaos. These are real-world issuesand real-world fixes. I kick off in the shop with a [----] surging to [----] RPM at startup. Then I head to a 9570R with a Cummins QSX15 dealing with frequent regenerations. That leads to a quick but revealing diagnostic. Back in the shop I trace down a short in the [----] only to get pulled into a hub build for a 2660VT. then out again to troubleshoot a 9460R"
YouTube Link 2025-04-25T23:30Z 103K followers, 51.1K engagements
"AutoTrac FAILS on a 9R [---] and the [----] Wont Stop Throwing Codes 😤 This one tested my patience. I start the day with a 1.5-hour drive to look at a John Deere 9R [---] where AutoTrac isnt working. After checking over the system and diagnostics I track down the issue and quickly get it sorted. Nothing like driving [---] hours to fix it in [--] min But then. its off to a [----] that just wont quit giving me trouble. Its been throwing ECU camshaft and crankshaft position codes all spring and Ive tried everything. The codes keep coming back. Now there's only one move left: run new wires directly from the"
YouTube Link 2025-04-18T23:30Z 103K followers, 48.8K engagements
"This [----] is testing my LAST nerve 😤 This [----] has been haunting me all spring. Camshaft and crankshaft sensor codes just keep coming back no matter what I do and now it's down to running new wires from the ECU. 🔧 Watch the full repair TONIGHT at 6:30PM central. If youve ever had a machine fight you every step of the way 👉 Hit that subscribe button and ride along #JohnDeere9530 #TractorRepair #DieselTech #ZKMastertech #FarmLife #GreenIron #SnapOnTools #MilwaukeeTools #MatcoTools #Shorts John Deere [----] John Deere tractor repair tractor problems tractor won't run tractor ECU codes camshaft"
YouTube Link 2025-04-18T23:05Z 103K followers, 28.2K engagements
"Big Repairs Bigger Machines John Deere 8400R & 8R [---] Fixes Were back in the shop and back in the field First up: I finally get the cab reinstalled on the rodent-damaged John Deere 8400R. Then it's off to a customers farm to tackle some serious issues on a John Deere 8R 370a front MFWD output housing leak caused by loose bearings failed seals and sloppy ILS driveshafts. And thats not allthe right side needs attention too. After that I take on a problem at the RH rear inner dual where the tires dangerously close to punching a hole in the fuel tank. Time for a new bracket install and some tire"
YouTube Link 2025-04-12T02:41Z 103K followers, 69K engagements
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