John Deere Joh.n Deere JD644 and JD644-A Loaders Service Manual

John Deere Joh.n Deere JD644 and JD644-A Loaders Service Manual

This is the John Deere Joh.n Deere JD644 and JD644-A Loaders Service Manual, as a PDF. It runs to 340 pages in 9 parts.

It covers the John Deere Deere JD644 and JD644-A wheel loaders. It is John Deere's own service manual, the documentation the dealer workshops repair these machines with.

Publication number: TM1011.

About the John Deere Deere JD644 wheel loader

A wheel loader works hardest in its powertrain and loader hydraulics: transmission, axles, brakes, the lift and tilt circuit and the steering. Those are the systems where the factory figures and procedures matter.

What is inside

Its chapters cover the engine, the fuel system, the transmission and drivetrain, brakes, the hydraulic system, the electrical system, steering and the work equipment. The largest sections are Power Train (68 pages), Hydraulic System (Loader Functions) (54 pages) and Electrical System (52 pages).

• Introduction (3 pages)
• General Information (22 pages)
• Engine (38 pages)
• Fuel System (24 pages)
• Electrical System (52 pages)
• Power Train (68 pages)
• Power Steering and Brake Systems (50 pages)
• Hydraulic System (Loader Functions) (54 pages)
• Miscellaneous Components (16 pages)

What you can do with it

• Find the cause of a fault before replacing parts
• Remove, overhaul and refit major components
• Set pressures, clearances and adjustments to the factory values
• Use the right torque values and tightening sequences
• Read the wiring and hydraulic diagrams when tracing a problem

Who it is for

Owners and operators who maintain their own machines, contractors' and rental workshops, independent repair shops and dealers.

Make sure it is your machine

Check the model and serial number on your machine before ordering. Some manuals only cover a range of serial numbers.

Questions about this manual

Which machines does this manual cover?
The John Deere Deere JD644, JD644-A. If your machine has a different model number, look for the manual for that model.

Is it the original manufacturer manual?
Yes. It is John Deere's own service manual, not a third-party reprint or a summary.

How many pages does it have?
340 pages, in 9 parts listed above.

How do I receive it?
It is a PDF. After payment it is available to download from your account, and you can read it on a computer, tablet or phone or print the pages you need. No printed book is shipped.