John Deere 644J 4WD Loader Repair Technical Manual TM10246 (S.N. 611232-)

John Deere repair technical manual TM10246 for the 644J four wheel drive loader, serial 611232 and up.

The 644J runs the PowerTech Plus 6.8 L (6068), Tier 3. Diagnostics are in the companion manual TM10231.

Compatibility and quick facts

• Make: John Deere
• Model: 644J
• Book code: TM10246
• Serial range: 611232 and up
• Engine: PowerTech Plus 6.8 L (6068), Tier 3
• Companion book: TM10231 Diagnostic
• Edition: 16 Feb 2016
• Manual type: Technical manual (repair)
• Language: English
• Length: 416 pages
• Format: PDF, download link right after checkout

What is inside

• Wheels, axles and suspension
• Transmission and dampener drive
• Engine removal and installation, cold start aids, cooling, intake, exhaust, fuel supply
• Steering, service brakes and park brake
• Frame, operator station and sheet metal
• Loader linkage and cylinders
• Dealer fabricated tools

Good to know before you buy

John Deere technical manuals are written for a trained mechanic. Each group opens with the special tools, specs, wear limits and torque values, then the steps.

This is the repair half. Fault codes and tests are in TM10231.

Common questions

My 644J serial is 605000. Is this right?
No. This edition starts at 611232.

Does it cover the axles?
Yes, removal and repair, with the axle CTMs listed for full rebuild.