John Deere 4120, 4320, 4520 and 4720 Compact Utility Tractors Technical Manual (tm2370)

Illustrated factory Technical Manual for John Deere Utility Tractors Models 4120, 4320, 4520 and 4720.

This manual will assist you in diagnosing, and repairing for your utility tractor.
You can use a Windows, Mac, or Android device to view this manual. You only need to have a PDF reader installed.

Covered Models:
   4120 (SN: 120001-610000)
   4320 (SN: 130001-610000)
   4520 (SN: 150001-610000)
   4720 (SN: 170001-610000)

Format: PDF, 836 pages
Language: English
Publication Date: 01 Dec 2006
Table of Contents:
   Introduction
   Safety
   Specifications and Information
      Table of Contents
      General Specifications
      O-Ring Seal Service Recommendations
      Fuels and Lubricants
      Coolant Specifications
      Serial Number Locations
   Engine - Diesel
      Table of Contents
      Specifications
      Tools and Materials
      Theory of Operation
      Theory of Operation (Air and Fuel)
      Diagnostics
      Tests and Adjustments
      Repair
      Cylinder Head and Valves
      Cylinder Block, Pistons, and Rods
      Crankshaft, Main Bearings and Flywheel
      Camshaft, Balancer Shafts and Timing Gear Train
      Lubrication System
      Cooling System
      Air Intake and Exhaust System
      Fuel System
      Starting and Charging Systems
   Electrical
      Table of Contents
      General Information
      Specifications
      Component Location
      Schematics and Harnesses
      Troubleshooting
      Operation and Diagnostics
      Tests and Adjustments
   Electrical - EEC
      European Electrical Section
      Specifications
      Component Location
      Schematics and Harnesses
      Troubleshooting
      Operation and Diagnostics
   Power Train - Hydrostatic
      Table of Contents
      Specifications
      Component Location
      Schematics
      Theory of Operation
      Troubleshooting
      Diagnostics
      Tests and Adjustments
      Repair
   Power Train - Final Drive
      Table of Contents
      Specifications
      Component Location
      Theory of Operation
      Diagnostics
      Tests and Adjustments
      Repair
      PTO Theory of Operation
      PTO Repair
   Hydraulics
      Table of Contents
      Specifications
      Component Location
      Schematics and Harnesses
      Theory of Operation
      Diagnostics
      Tests and Adjustments
      Repair
   Steering
      Table of Contents
      Specifications
      Component Location
      Theory of Operation
      Diagnostics
      Tests and Adjustments
      Repair
   Brakes
      Table of Contents
      Specifications
      Component Location
      Theory of Operation
      Diagnostics
      Tests and Adjustments
      Repair
   HVAC
      Table of Contents
      Specifications
      Tools and Materials
      General Information
      Tests and Adjustments
   Miscellaneous
      Table of Contents
      Specifications
      Tools and Materials
      Tests and Adjustments
      Repair
   Index
      A
      B
      C
      D
      E
      F
      G
      H
      I
      L
      M
      O
      P
      R
      S
      T
      U
      W