John Deere 6120 6220 6320 6420 6120L to 6520L Tractor Diagnosis and Test Manual

John Deere 6120 6220 6320 6420 6120L to 6520L Tractor Diagnosis and Test Manual

This is the John Deere 6120 6220 6320 6420 6120L to 6520L Tractor Diagnosis and Test Manual, as a PDF. It runs to 1,904 pages in 16 parts.

It covers the John Deere 6120, 6220, 6320, 6420 and 6120L tractors. It is John Deere's operation and test manual: how each system works and how to test it.

Publication number: TM4647.

About the John Deere 6120 tractor

Tractors are kept running for decades, and the factory manual is what lets a mechanic rebuild the transmission, set the hydraulic lift or trace an electrical fault correctly.

What is inside

Its chapters cover the engine, the fuel system, cooling, the transmission and drivetrain, the electrical system and emissions and aftertreatment. The largest sections are Section 40 (380 pages), Section 53 (158 pages) and Section 51 (108 pages).

• Safety
• Section 05 (16 pages)
• General Information
• Section 10 (52 pages)
• Engine
• Section 20 (18 pages)
• Fuel, Air Intake, Cooling and Exhaust Systems
• Section 30 (62 pages)
• Electrical System
• Section 40 (380 pages)
• Syncroplus Transmission
• Section 50 (86 pages)
• Power Reverser Transmission
• Section 51 (108 pages)
• Autopowr/Ivt Transmission
• Section 53 (158 pages)

What you can do with it

• Understand how each system works
• Run the diagnostic tests in the right order
• Compare readings with the factory specifications
• Find the fault before replacing parts

Who it is for

Farmers who repair their own equipment, farm workshops, independent agricultural mechanics 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 6120, 6220, 6320, 6420, 6120L. 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 diagnostic manual, not a third-party reprint or a summary.

How many pages does it have?
1,904 pages, in 16 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.