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693 results

ZK MasterTech

110K subscribers

Latest from ZK MasterTech

ZK MasterTech
One Last X9 to Get Ready for Harvest… And It's a BIG One!

We inspected three John Deere X9 combines on one farm, and we've been working our way through the repairs we found during ...

53:38
One Last X9 to Get Ready for Harvest… And It's a BIG One!

50,205 views

5d ago

ZK MasterTech
These 2 John Deere X9's Had WAY More Problems Than We Expected!

Harvest is HERE, the corn is ready, and we've got TWO John Deere X9 combines with a list of problems that need attention! We're ...

50:53
These 2 John Deere X9's Had WAY More Problems Than We Expected!

73,701 views

12d ago

ZK MasterTech
We Fixed Everything We Could on This S780… Except ONE HUGE Problem

This John Deere S780 had THREE holes worn in it when we first inspected it. Now we're back to fix everything we possibly can ...

59:24
We Fixed Everything We Could on This S780… Except ONE HUGE Problem

57,621 views

2w ago

ZK MasterTech
This S770 Was Doing Something It Shouldn’t Be Able to Do...

This John Deere S770 showed up with cleaning fan codes, a blown F12 fuse, and one reading that immediately caught my ...

34:06
This S770 Was Doing Something It Shouldn’t Be Able to Do...

56,092 views

3w ago

ZK MasterTech
Two Places Hydraulic Oil Should NEVER Be in an S-Series Combine!

This John Deere S790 combine had hydraulic oil showing up in TWO places it absolutely should not be! I originally came out to ...

56:55
Two Places Hydraulic Oil Should NEVER Be in an S-Series Combine!

72,740 views

1mo ago

ZK MasterTech
Stay cool with the new Milwaukee M18 Misting Fan! #milwaukeepipeline #milwaukeetools

Check out the all new Milwaukee M18 Misting Fan! Can't wait to get my hands on one of these! #milwaukeepipeline ...

2:59
Stay cool with the new Milwaukee M18 Misting Fan! #milwaukeepipeline #milwaukeetools

4,841 views

1mo ago

ZK MasterTech
NEW Milwaukee M18 Fuel Grease Gun!

The All NEW Milwaukee M18 Fuel Grease Gun! This is a tool I didn't know needed upgraded until I seen it and now I want one ...

2:47
NEW Milwaukee M18 Fuel Grease Gun!

9,620 views

1mo ago

ZK MasterTech
Meet the all NEW Milwaukee M18  Fuel 3/4" high torque impacts! 2,000 lb-ft!!!!

The all new Milwaukee M18 Fuel 3/4" high torque impacts got upgraded to a whole other level! I'm super excited about this ...

3:00
Meet the all NEW Milwaukee M18 Fuel 3/4" high torque impacts! 2,000 lb-ft!!!!

7,480 views

1mo ago

ZK MasterTech
This Legendary 9870 STS Had Some SERIOUS Problems! | Old Iron Meets NEW Milwaukee Tools

The John Deere 9870 STS has earned its reputation as one of the great combines. I call it the big-block square-body Chevy of the ...

56:27
This Legendary 9870 STS Had Some SERIOUS Problems! | Old Iron Meets NEW Milwaukee Tools

38,593 views

1mo ago

ZK MasterTech
New Milwaukee M12 Fuel straight die grinders | Milwaukee Pipeline 2026

New Milwaukee M12 Fuel Extended Reach and standard length Straight Die Grinders at the 2026 Milwaukee Pipeline! This is a ...

2:59
New Milwaukee M12 Fuel straight die grinders | Milwaukee Pipeline 2026

9,455 views

1mo ago

Latest posts from ZK MasterTech

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ZK MasterTech
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 ...

46:48
Small Problem, HUGE Repair — Intake Valve Failure on a 9.0L

64,655 views

9mo ago

ZK MasterTech
We Fixed Everything We Could on This S780… Except ONE HUGE Problem

This John Deere S780 had THREE holes worn in it when we first inspected it. Now we're back to fix everything we possibly can ...

59:24
We Fixed Everything We Could on This S780… Except ONE HUGE Problem

57,621 views

2w ago

ZK MasterTech
640HP John Deere 9RX Catastrophic Failure… FULL REBUILD

This is the full story of the John Deere 9RX 640 — from catastrophic failure to complete rebuild in one episode. We named this ...

45:01
640HP John Deere 9RX Catastrophic Failure… FULL REBUILD

230,279 views

5mo ago

ZK MasterTech
The Damage Was Worse Than We Thought! Getting Two X9's Ready for Wheat Harvest.

Thanks to BRUNT for sponsoring this video! Get $10 off your first purchase at https://brunt.yt.link/869Mja0 using code ...

46:53
The Damage Was Worse Than We Thought! Getting Two X9's Ready for Wheat Harvest.

57,563 views

3mo ago

ZK MasterTech
S790 Cleaning Shoe Alignment — Why Your sieve frame is rubbing hard to one side.

Back on the John Deere S790! This time I'm finishing the sieve frame repairs. I remove the sieve frame, replace the side sheets, ...

1:11:34
S790 Cleaning Shoe Alignment — Why Your sieve frame is rubbing hard to one side.

36,850 views

1y ago

ZK MasterTech
2023 RAM 5500 Service Truck Tour – Built to Work with Stellar T-Max Crane

Join me for an in-depth tour of my brand new 2023 RAM 5500 service truck, outfitted with a Stellar Industries T-Max crane body.

50:27
2023 RAM 5500 Service Truck Tour – Built to Work with Stellar T-Max Crane

63,818 views

1y ago

ZK MasterTech
Worst Equipment Carnage I've Ever Seen

This video is a compilation of the worst equipment carnage I've seen — real-world failures caught during diagnostics in both the ...

57:59
Worst Equipment Carnage I've Ever Seen

176,771 views

8mo ago

ZK MasterTech
S680 gets new swing arms! (Cleaning shoe repairs done RIGHT!)

In this video, I start out by replacing the replacing the feed accelerator belt, rethresher drive chain & idlers, and then get started on ...

58:01
S680 gets new swing arms! (Cleaning shoe repairs done RIGHT!)

118,045 views

4y ago

ZK MasterTech
It Just Died… Chasing Electrical Failures During Planting

Spring 26 Service Calls Episode 5 is here and this one had a little bit of everything. We start out on a John Deere 9620RX that ...

36:58
It Just Died… Chasing Electrical Failures During Planting

57,009 views

4mo ago

ZK MasterTech
We Finally Found the REAL Problem!

Harvest season is getting closer, and these combines still need a lot of attention before they're ready to hit the field. Today's ...

57:23
We Finally Found the REAL Problem!

39,954 views

1mo ago

ZK MasterTech
If This Isn’t PERFECT… 640 HP Will Destroy This 9RX Axle

This is one of the most precise and technical builds I've done yet. After tearing down the rear axle on this John Deere 9RX 640 ...

1:06:02
If This Isn’t PERFECT… 640 HP Will Destroy This 9RX Axle

92,216 views

6mo ago

ZK MasterTech
This S770 Was Doing Something It Shouldn’t Be Able to Do...

This John Deere S770 showed up with cleaning fan codes, a blown F12 fuse, and one reading that immediately caught my ...

34:06
This S770 Was Doing Something It Shouldn’t Be Able to Do...

56,092 views

3w ago

ZK MasterTech
This Legendary 9870 STS Had Some SERIOUS Problems! | Old Iron Meets NEW Milwaukee Tools

The John Deere 9870 STS has earned its reputation as one of the great combines. I call it the big-block square-body Chevy of the ...

56:27
This Legendary 9870 STS Had Some SERIOUS Problems! | Old Iron Meets NEW Milwaukee Tools

38,593 views

1mo ago

ZK MasterTech
S780 Vertical Auger Gearcase Rebuild + ROCKY Returns!

In this video, I completely rebuild the HD vertical unloading auger gearcase from a John Deere S780 and take you through the ...

50:58
S780 Vertical Auger Gearcase Rebuild + ROCKY Returns!

31,805 views

2mo ago

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

This John Deere 9520 didn't just need parts — it needed a second chance. In this video, I take a completely failed 12.5L engine ...

50:41
Replacing a Failed 12.5L — John Deere 9520 Complete Block Build

87,470 views

8mo ago

ZK MasterTech
The Most EPIC Moments of Spring Service Calls 2026!

Spring Service Calls 2026 brought everything from catastrophic transmission failures and storm-damaged tractors to emergency ...

59:28
The Most EPIC Moments of Spring Service Calls 2026!

22,108 views

3mo ago