John Deere 4120 4320 Service Manual tm105119
(TM105319)
John Deere 4000 Twenty Tractors With Cab Technical Manual Tm2370
John Deere 4120 4320 Utility Service Manual tm105319
Illustrated Factory Diagnostic and Repair Technical Service Manual for John Deere Compact Utility Tractors Models 4120, 4320 (With Cab).
This manual contains high-quality images, circuit diagrams, instructions to help you to maintenance, troubleshooting, diagnostic, and repair your truck. This document is printable, without restrictions, contains searchable text, bookmarks, cross-links for easy navigation.
Language: English
Format: PDF, 1070 pages
Covered models:
4120 (SN. from 610001-)
4320 (SN. from 620001-)
John Deere 4120 4320 Utility Service Manual tm105319
Contents:
Foreword
Safety
Safety
Specifications and Information
General Specifications
Fuel and Lubricants
Serial Number Locations
Engine
Specifications
Tools and Materials
Repair
Electrical – NA
General Information
Specifications
Component Location
Schematics and Harnesses
Operation and Diagnostics
Tests and Adjustments
Service Codes
Electronic Controllers
Operation and Diagnostics – DTCs (TCU)
Operation and Diagnostics – DTCs (ICC)
Electrical – EEC
European Electrical Section
Specifications
Component Location
EEC Schematics and Harnesses
Operation and Diagnostics
Power Train – Hydrostatic
Specifications
Component Location
Schematics
Theory of Operation
Diagnostics
Tests and Adjustments
Repair
Power Train – Final Drive
Specifications
Component Location
Theory of Operation
Diagnostics
Tests and Adjustments
Repair
PTO Theory of Operation
PTO Repair
Hydraulics
Specifications
Component Location
Schematics & Harnesses
Theory of Operation
Diagnostics
Tests and Adjustments
Repair
Steering
Specifications
Component Location
Theory of Operation
Diagnostics
Tests and Adjustments
Repair
Brakes
Specifications
Component Location
Theory of Operation
Diagnostics
Tests and Adjustments
Repair
HVAC
Specifications
Tools and Materials
General Information
Tests and Adjustments
Miscellaneous
Specifications
Tools and Materials
Tests and Adjustments
Repair.
How much oil does my John Deere 4120 take?
The John Deere 4120 tractor typically requires about 6.3 quarts (6 liters) of engine oil when performing an oil change, including the oil filter replacement. It’s recommended to use oil that meets the specifications listed in your tractor’s manual, such as John Deere Plus-50 II or any high-quality oil meeting API CJ-4 or higher standards. Always check the dipstick after refilling to ensure the correct oil level, and consult your operator’s manual for the most accurate and specific guidelines.
