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9RX 640 Failure Story So Far… Pinion Gear Teeth Destroyed

9RX 640 Failure Story So Far… Pinion Gear Teeth Destroyed ZK MasterTech

21.8K views - 4 days ago

After NFMS 2026 and Fixing an S790, This 9RX 640 Showed Up Destroyed

After NFMS 2026 and Fixing an S790, This 9RX 640 Showed Up Destroyed ZK MasterTech

57.8K views - 1 week ago

The Most Optioned $1M John Deere X9 — Full Inspection

The Most Optioned $1M John Deere X9 — Full Inspection ZK MasterTech

32.4K views - 4 weeks ago

Major Combine Repairs in the Heat of Harvest! Good ol' 70 Series combine, Got to love it!

Major Combine Repairs in the Heat of Harvest! Good ol' 70 Series combine, Got to love it! ZK MasterTech

65.6K views - 5 months ago

Fuel Pump Failure, DEF Issues & X9 Breakdowns | Harvest Service Calls 2025 Ep. 3

Fuel Pump Failure, DEF Issues & X9 Breakdowns | Harvest Service Calls 2025 Ep. 3 ZK MasterTech

52.6K views - 5 months ago

Chasing Harvest Breakdowns | Service Calls Across Multiple Days (EP. 1)

Chasing Harvest Breakdowns | Service Calls Across Multiple Days (EP. 1) ZK MasterTech

30.9K views - 5 months ago

8RX 410 track, 9360R Radiator, X9 Issues & S780 Electrical Gremlins | Harvest 2025 Service Calls 4

8RX 410 track, 9360R Radiator, X9 Issues & S780 Electrical Gremlins | Harvest 2025 Service Calls 4 ZK MasterTech

47.6K views - 4 months ago

Farm Progress Show 2025, New MONSTER 9RX 770 + Game-Changing S780 Repair Tips

Farm Progress Show 2025, New MONSTER 9RX 770 + Game-Changing S780 Repair Tips ZK MasterTech

27.8K views - 6 months ago

Hydraulic Nightmare! This John Deere 6300 Had ZERO Oil Pressure…

Hydraulic Nightmare! This John Deere 6300 Had ZERO Oil Pressure… ZK MasterTech

64.7K views - 2 weeks ago

We Put It Back Together… Did This 9.0L Survive?

We Put It Back Together… Did This 9.0L Survive? ZK MasterTech

42.8K views - 1 month ago

Harvest service calls | Carnage | New Milwaukee Gen 3 high torque and 1 inch drive impacts!

Harvest service calls | Carnage | New Milwaukee Gen 3 high torque and 1 inch drive impacts! ZK MasterTech

135.1K views - 2 years ago

Replacing a Failed 12.5L — John Deere 9520 Complete Block Build

Replacing a Failed 12.5L — John Deere 9520 Complete Block Build ZK MasterTech

58.1K views - 4 weeks ago

🔧 Massive John Deere Repairs: 8400R Harness Headaches & 8360R ILS Overhaul!

🔧 Massive John Deere Repairs: 8400R Harness Headaches & 8360R ILS Overhaul! ZK MasterTech

110.7K views - 10 months ago

What Caused This S780 5 Speed Feeder House Gear Case Failure?

What Caused This S780 5 Speed Feeder House Gear Case Failure? ZK MasterTech

47.6K views - 3 weeks ago

This 80,000 LB Beast Is Powered by a John Deere 13.6L 💪🔥

This 80,000 LB Beast Is Powered by a John Deere 13.6L 💪🔥 ZK MasterTech

41.9K views - 11 months ago

Worst Equipment Carnage I've Ever Seen

Worst Equipment Carnage I've Ever Seen ZK MasterTech

91.3K views - 4 weeks ago

Oil Pressure Was “In Spec”… Then This 9520 Engine Destroyed Itself

Oil Pressure Was “In Spec”… Then This 9520 Engine Destroyed Itself ZK MasterTech

116.2K views - 1 month ago

First Look: John Deere S7 800 Through a Master Technician’s Eyes

First Look: John Deere S7 800 Through a Master Technician’s Eyes ZK MasterTech

69.7K views - 6 months ago

John Deere X9 1100 track drive sprocket failure.

John Deere X9 1100 track drive sprocket failure. ZK MasterTech

451.1K views - 1 year ago

John Deere 9510R tractor is down. Can I get it to run just a couple more days?

John Deere 9510R tractor is down. Can I get it to run just a couple more days? ZK MasterTech

200.1K views - 1 year ago