ZK MasterTech - Invidious

ZK MasterTech

Welcome to the ZK MasterTech! See what it's like to dive into the world of a Master John Deere Ag Technician, Zeth Key. A 2007 Automotive Graduate of Wyotech in Laramie, WY and 2023 WyoTech Hall of Fame Inductee now finds himself working on John Deere diesel tractors and combines in the farm lands of central Illinois.
Working for Sloan Implement in Atwood, IL for over a decade, Zeth has seen just about every failure your John Deere equipment can have. Subscribe to ZK MasterTech to see what it's like to repair some of the most advanced farm machinery you can buy!
Being a John Deere technician is one of the most rewarding and challenging careers you can get into. Just like the whole industry, companies in AG have a hard time finding talented, experienced people. Hopefully this channel will show the world the technical side of agriculture and what it takes to keep the farmers going and to inspire a younger generation to pick up a wrench a start a great career with Sloan Implement!

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46:47

9RX 640 Tear Down Continues — The Rear Differential Damage is Unreal

ZK MasterTech

Shared 4 days ago

68K views

3:42

9RX 640 Failure Recap — Pump Stack & Scavenge Pump Investigation

ZK MasterTech

Shared 6 days ago

16K views

40:01

Cab Off the 9RX 640… Pump Stack Failure Confirmed

ZK MasterTech

Shared 1 week ago

78K views

4:00

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

ZK MasterTech

Shared 1 week ago

23K views

53:14

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

ZK MasterTech

Shared 2 weeks ago

61K views

51:50

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

ZK MasterTech

Shared 3 weeks ago

70K views

52:31

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

ZK MasterTech

Shared 4 weeks ago

49K views

38:59

After Everything This 9520 Went Through… This Is the Moment

ZK MasterTech

Shared 4 weeks ago

41K views

50:41

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

ZK MasterTech

Shared 4 weeks ago

59K views

1:03:41

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

ZK MasterTech

Shared 4 weeks ago

33K views

37:44

X9 Shop Repairs & a Look at a $1M X9

ZK MasterTech

Shared 1 month ago

50K views

57:59

Worst Equipment Carnage I've Ever Seen

ZK MasterTech

Shared 1 month ago

94K views

42:37

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

ZK MasterTech

Shared 1 month ago

119K views

1:02:08

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

ZK MasterTech

Shared 1 month ago

43K views

46:48

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

ZK MasterTech

Shared 1 month ago

57K views

1:13:45

S670 Engine REMOVAL & Tear-Down… You Won’t Believe What I Found Inside!

ZK MasterTech

Shared 3 months ago

103K views

44:59

The 8320 That REFUSES to Run!

ZK MasterTech

Shared 3 months ago

83K views

51:40

Rear Drive GONE… 9RX Would Only Pull With the Front Tracks

ZK MasterTech

Shared 3 months ago

69K views

1:00:28

It Ate Something BAD… 💥 Shop Carnage + Harvest Fixes!

ZK MasterTech

Shared 3 months ago

81K views

45:27

9620RX MAJOR Oil Leak + 9520 Engine Lockup! Harvest Service Calls 9 ✅

ZK MasterTech

Shared 4 months ago

53K views

13:44

✅ 3 NEW Must-Have Milwaukee Tools That Are Game Changers in the Ag Shop!

ZK MasterTech

Shared 4 months ago

16K views

39:26

9R breakdowns & S670 engine Backfires Through the Intake — She’s About to Blow!

ZK MasterTech

Shared 4 months ago

79K views

47:55

Service Call CHAOS! 😳 Massey Fire + Dead 9R in the Woods | Harvest ’25 #7

ZK MasterTech

Shared 4 months ago

86K views

57:03

⚠️ S780 won’t swing unloading auger | 💪 8310R hard steering | 🔥 The X9 Strikes Again!

ZK MasterTech

Shared 4 months ago

44K views

41:51

X9 Turbo Leak, S780 Transmission and separator clutch Failure, X9 hits a pole with unloading auger!

ZK MasterTech

Shared 5 months ago

46K views

1:11:01

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

ZK MasterTech

Shared 5 months ago

48K views

1:00:43

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

ZK MasterTech

Shared 5 months ago

52K views

56:12

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

ZK MasterTech

Shared 5 months ago

66K views

40:17

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

ZK MasterTech

Shared 5 months ago

31K views

56:47

John Deere S680 Feeder House Floor, Augers & Driveshaft Repairs + S790 service call

ZK MasterTech

Shared 6 months ago

35K views

1:15:49

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

ZK MasterTech

Shared 6 months ago

27K views

23:33

One day we won't need operators in the driver's seat! New X9 with ultimate technology package!

ZK MasterTech

Shared 6 months ago

42K views

58:28

John Deere S770 Combine | Major Feederhouse Rebuild, Hydraulic Fixes & PowerCast Upgrades

ZK MasterTech

Shared 6 months ago

33K views

48:12

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

ZK MasterTech

Shared 7 months ago

69K views

1:11:34

John Deere S790 sieve frame replacement & discharge beater fix — perfect shoe alignment achieved!

ZK MasterTech

Shared 7 months ago

33K views

54:03

Critical Repairs Before Harvest on this John Deere S790.

ZK MasterTech

Shared 7 months ago

45K views

36:45

Game-Changing Upgrade for John Deere S790! | Sloan Express Feed Accelerator Install

ZK MasterTech

Shared 7 months ago

42K views

1:28:20

John Deere 9560RT Hard Start FIXED – Timing Issues, Injector Replacement & Pro Tips

ZK MasterTech

Shared 7 months ago

74K views

48:47

8295R 1500 MFWD Axle Seal Replacement + 8210 Rescue Mission!

ZK MasterTech

Shared 8 months ago

172K views

1:31:03

S790 Inspection Masterclass – Everything You Need to Know

ZK MasterTech

Shared 8 months ago

34K views

33:48

X9 Rock Damage, Elevator Repairs & Serious Chopper Upgrade!

ZK MasterTech

Shared 8 months ago

28K views

50:19

X9 Repairs, 8295R Axle Seals & 8235R Fan-to-Radiator Damage

ZK MasterTech

Shared 8 months ago

33K views

31:31

9570R Field Fix, 3046R fuel sender, and a Shop Head-Scratcher on the 8360RT

ZK MasterTech

Shared 9 months ago

35K views

51:22

Pure Grit: 9100 ECU Hail Mary, Electrical Gremlins & Wrenching Past Sundown.

ZK MasterTech

Shared 9 months ago

43K views

29:50

Tractor Trouble: 8310RT Breakdown, 8370R CAN Faults, 9570RT Regen Issues – 9100’s Gone!

ZK MasterTech

Shared 9 months ago

41K views

45:46

Fixing Everything: 9570R, 9100, 8R 340, 4630 & Even My Truck!

ZK MasterTech

Shared 10 months ago

37K views

37:58

The 9100 Refuses to Run… and the 8R’s Fan Goes Full Turbo!

ZK MasterTech

Shared 10 months ago

39K views

33:11

Overrev, Regen Fails & Electrical Chaos | Deere Diagnostics Madness!

ZK MasterTech

Shared 10 months ago

48K views

32:51

AutoTrac FAILS on a 9R 590… and the 9530 Won’t Stop Throwing Codes 😤

ZK MasterTech

Shared 10 months ago

46K views

49:26

Big Repairs, Bigger Machines! | John Deere 8400R & 8R 370 Fixes

ZK MasterTech

Shared 11 months ago

66K views

56:45

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

ZK MasterTech

Shared 11 months ago

111K views

37:11

🔥 Stubborn Bolt Battle on a Mint 8310! + 9630 SCV Update & 8360R Prep

ZK MasterTech

Shared 11 months ago

81K views

45:06

EPIC John Deere Adventure! 🚜 9630, X9 1100, 8RX 410 & More in One Video!

ZK MasterTech

Shared 11 months ago

58K views

39:34

Tractors Everywhere... and They’re All Tore Apart! 😱 Spring Prep Madness Begins

ZK MasterTech

Shared 11 months ago

55K views

23:51

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

ZK MasterTech

Shared 1 year ago

42K views

34:55

8R 370 Gets More Air AND a Smoother Ride! Air Cleaner + Seat Fix

ZK MasterTech

Shared 1 year ago

43K views

27:51

How a Variable Pitch Fan Works… Until It Doesn’t 😬 | John Deere X9 Trouble

ZK MasterTech

Shared 1 year ago

28K views

41:18

S680 5-Speed Gear Case Rebuild & Install – Shifts Like Butter! (Part 2)

ZK MasterTech

Shared 1 year ago

29K views

44:50

John Deere S680 ProDrive: 5-Speed Feeder House Gear Case Failure & Full Tear Down

ZK MasterTech

Shared 1 year ago

48K views

45:41

John Deere 9R 640 Steering Issue – Load Sense Leak Diagnosed + Q&A

ZK MasterTech

Shared 1 year ago

41K views