John Deere 3120, 3320, 3520 and 3720 Compact Utility Tractor (wo Cab) Diagnostic Repair Technical Manual TM2138 23JAN13

FOREWORD
Section 10 – SAFETY
Group 05 – Safety
Section 20 – SPECIFICATIONS AND INFORMATION
Group 05 – General Specifications
Group 10 – Fuel and Lubricants
Group 15 – Serial Number Locations
Section 30 – ENGINE
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Theory of Operation
Group 20 – Diagnostics
Group 25 – Tests and Adjustments
Group 30 – Repair
Section 40 – ELECTRICAL—NA
Group 05 – General Information
Group 10 – Specifications
Group 15 – Component Location
Group 20 – Schematics and Harnesses
Group 25 – Schematics and Harnesses MY08
Group 30 – Schematics and Harnesses MY13
Group 35 – Common Schematics and Harnesses
Group 40 – Operation and Diagnostics
Group 45 – Tests and Adjustments
Group 50 – Display Panel Tests and Adjustments
Group 55 – SERVICEGARD™ Tests and Adjustments
Group 60 – Service ADVISOR™ Test and Adjustments
Group 65 – Repair
Section 50 – ELECTRICAL—EEC
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Schematics and Harnesses
Group 20 – Schematics and Harnesses MY08
Group 25 – Schematics and Harnesses—MY13
Group 30 – Common Schematics and Harnesses
Group 35 – Troubleshooting
Group 40 – Operation and Diagnostics
Section 60 – POWER TRAIN—PRT
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Theory of Operation
Group 20 – Diagnostics
Group 25 – Troubleshooting
Group 30 – Tests and Adjustments
Group 35 – Repair
Section 70 – POWER TRAIN—HYDROSTATIC
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Schematics
Group 20 – Theory of Operation
Group 25 – Diagnostics
Group 30 – Troubleshooting
Group 35 – Tests and Adjustments
Group 40 – Repair
Section 80 – POWER TRAIN—FINAL DRIVE
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Theory of Operation
Group 20 – Diagnostics
Group 25 – Troubleshooting
Group 30 – Final Drive Troubleshooting
Group 35 – Tests and Adjustments
Group 40 – Repair
Group 45 – PTO Theory of Operation
Group 50 – PTO Repair
Section 90 – HYDRAULICS
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Schematics
Group 20 – Theory of Operation
Group 25 – Diagnostics
Group 30 – Tests and Adjustments
Group 35 – Repair
Section 100 – STEERING
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Theory of Operation
Group 20 – Diagnostics
Group 25 – Tests and Adjustments
Group 30 – Repair
Section 110 – BRAKES
Group 05 – Specifications
Group 10 – Component Location
Group 15 – Theory of Operation
Group 20 – Diagnostics
Group 25 – Tests and Adjustments
Group 30 – Repair
Section 120 – MISCELLANEOUS
Group 05 – Specifications