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A MASSIVE Boost Leak Was Just ONE Problem...11 Harvest Service Calls!
59:58
A MASSIVE Boost Leak Was Just ONE Problem...11 Harvest Service Calls!
9.9K views1 week ago
YouTubeZK MasterTech
640HP John Deere 9RX Catastrophic Failure… FULL REBUILD
45:01
640HP John Deere 9RX Catastrophic Failure… FULL REBUILD
169.1K views6 months ago
YouTubeZK MasterTech
This S680 Has to Go Back Together EXACTLY Right
55:44
This S680 Has to Go Back Together EXACTLY Right
28K views2 months ago
YouTubeZK MasterTech
Hydraulic Nightmare! This John Deere 6300 Had ZERO Oil Pressure…
51:50
Hydraulic Nightmare! This John Deere 6300 Had ZERO Oil Pressure…
117.6K views8 months ago
YouTubeZK MasterTech
Replacing a Failed 12.5L — John Deere 9520 Complete Block Build
50:41
Replacing a Failed 12.5L — John Deere 9520 Complete Block Build
86.3K views8 months ago
YouTubeZK MasterTech
Major Combine Repairs in the Heat of Harvest! Good ol' 70 Series combine, Got to love it!
56:12
Major Combine Repairs in the Heat of Harvest! Good ol' 70 Series combine, Got to love it!
78.6K viewsSep 20, 2025
YouTubeZK MasterTech
Small Problem, HUGE Repair — Intake Valve Failure on a 9.0L
46:48
Small Problem, HUGE Repair — Intake Valve Failure on a 9.0L
63.4K views10 months ago
YouTubeZK MasterTech
44:13
One Last Push to Finish These John Deere X9s!
38.7K views3 months ago
YouTubeZK MasterTech
51:11
I've Never Seen an S780 With This Many Holes!
45.9K views2 months ago
YouTubeZK MasterTech
49:28
6 Breakdowns… Oil in coolant, broken gears and a major injector job
63.8K views5 months ago
YouTubeZK MasterTech
39:37
We Found MORE Damage Than We Expected...
26.3K views3 months ago
YouTubeZK MasterTech
57:46
Building a 640HP Monster — 9RX 640 Rear Axle Rebuild, Wide Stance Kit & First Startup
65.7K views6 months ago
YouTubeZK MasterTech
52:31
What Caused This S780 5 Speed Feeder House Gear Case Failure?
60.6K views8 months ago
YouTubeZK MasterTech
53:14
After NFMS 2026 and Fixing an S790, This 9RX 640 Showed Up Destroyed
69.8K views8 months ago
YouTubeZK MasterTech
44:10
The WORST John Deere Damper Failure I’ve Ever Seen!
51.6K views4 months ago
YouTubeZK MasterTech
28:58
Coolant in the Intake?! John Deere 9530T EGR Failure + 8R 370 Diagnosis
38K views7 months ago
YouTubeZK MasterTech
55:35
Storm WRECKS Two John Deere Tractors… 6 Breakdowns
55.5K views5 months ago
YouTubeZK MasterTech
38:59
After Everything This 9520 Went Through… This Is the Moment
55.2K views8 months ago
YouTubeZK MasterTech
34:06
This S770 Was Doing Something It Shouldn’t Be Able to Do...
55.1K views1 month ago
YouTubeZK MasterTech
56:27
This Legendary 9870 STS Had Some SERIOUS Problems! | Old Iron Meets NEW Milwaukee Tools
38.8K views2 months ago
YouTubeZK MasterTech
40:01
Cab Off the 9RX 640… Pump Stack Failure Confirmed
92.2K views7 months ago
YouTubeZK MasterTech
3:42
9RX 640 Failure Recap — Pump Stack & Scavenge Pump Investigation
19.1K views7 months ago
YouTubeZK MasterTech
4:00
9RX 640 Failure Story So Far… Pinion Gear Teeth Destroyed
25.4K views7 months ago
YouTubeZK MasterTech
56:21
I Finally Named the S680 That Just Won’t Quit
31.1K views3 months ago
YouTubeZK MasterTech
48:47
8295R 1500 MFWD Axle Seal Replacement + 8210 Rescue Mission!
194.8K viewsJul 4, 2025
YouTubeZK MasterTech
42:37
Oil Pressure Was “In Spec”… Then This 9520 Engine Destroyed Itself
157.1K views9 months ago
YouTubeZK MasterTech
37:53
How to repair a variable speed feeder house drive on John Deere S-Series combines.
185.9K viewsSep 17, 2021
YouTubeZK MasterTech
48:12
First Look: John Deere S7 800 Through a Master Technician’s Eyes
78.7K viewsAug 9, 2025
YouTubeZK MasterTech
36:20
John Deere S790 - How to repair the clean grain and unload system after harvesting down corn.
68.6K viewsJul 17, 2022
YouTubeZK MasterTech
58:28
John Deere S770 Combine | Major Feederhouse Rebuild, Hydraulic Fixes & PowerCast Upgrades
36.4K viewsAug 16, 2025
YouTubeZK MasterTech
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