
John Deere 8120 8220 8320 8420 8520 Tractors Operation and Test Manual TM1980
The John Deere 8120 8220 8320 8420 8520 Tractors Operation and Test Manual provides detailed operation, testing, and diagnostic information for the 8120, 8220, 8320, 8420, and 8520 tractor models. It covers general information, service codes, observable symptoms, system diagnosis, engine, fuel and air systems, electrical systems, control units, GreenStar, JDLink, AutoTrac, Field Doc, PowerShift transmission, drive systems, steering and brakes, hydraulics, operator station, and service tools. The manual includes diagnostic codes and addresses, operational checks, tests and adjustments, theories of operation, schematics and diagrams, AMS diagnostic procedures, AutoTrac diagnostics, transmission testing, drive system checks, steering and brake testing, hydraulic testing, operator station diagnostics, and related test tools.
Specifications: SM
- Brand: John Deere 8000-9000 Series Tractors
- Type of Document: Operation and Test Manual
- Type of Equipment: Tractor
- Model: 8120, 8220, 8320, 8420, 8520
- Manual Number: TM1980
- Language: English
- Format: PDF

Details:
Table of Contents
Introduction
- Foreword
GENERAL
- Safety
- General References
SERVICE CODES
- ACU Code Diagnostics
- AMS General Diagnostic Codes
- ASU Code Diagnostics
- ATC Code Diagnostics
- CCU Code Diagnostics
- ECU Code Diagnostics
- EHo Code Diagnostics
- HCU Code Diagnostics
- ICU Code Diagnostics
- JdL Code Diagnostics
- PCU Code Diagnostics
- SCU Code Diagnostics
- SCo Code Diagnostics
- SSU Code Diagnostics
- SUP Code Diagnostics
OBSERVABLE SYMPTOMS
- Axles
- Electrical
- Ag Management Solutions (AMS)
- Hitch
- Heating, Ventilation and Air Conditioning (Standard)
- Heating, Ventilation and Air Conditioning – CLIMATRAK (ATC) (-010000)
- Heating, Ventilation and Air Conditioning – CLIMATRAK (ATC) (010001-)
- Operator Station
- Power Take-Off
- Selective Control Valve
- Steering
- Transmission
- Hydraulics
SYSTEM DIAGNOSIS
- Electrical
- Transmission
- Drive Systems
- Steering and Brake Systems
- Hydraulic System
- CLIMATRAK (ATC) System (010001-)
- Heated Seat
ENGINE
- Operational Checks
- Tests and Adjustments
- Theory of Operation
- Schematics and Diagrams
FUEL AND AIR
- Theory of Operation
ELECTRICAL
- Tests and Adjustments
- Theory of Operation
- Schematics and Diagrams
CONTROL UNITS
- Service Codes
- ACU References
- ASU References
- CLIMATRAK (ATC) References
- CCU References
- ECU References
- EHo References
- HCU References
- ICU References
- Implement Management System (IMS) References
- PCU References
- SCU References
- SCo References
- SSU References
- SUP References
AG MANAGEMENT SOLUTIONS (AMS) – GREENSTAR
- GREENSTAR System References
AG MANAGEMENT SOLUTIONS (AMS)-JDLINK
- Accessing Diagnostic Addresses and Codes
- Diagnostic Trouble Codes
- Diagnostic Addresses
- JDLINK Machine Messenger Diagnostics
AG MANAGEMENT SOLUTIONS (AMS) – AUTOTRAC
- How to Use This Diagnostic Information
- Accessing Diagnostic Addresses and Codes
- Diagnostic Trouble Codes
- AutoTrac Identification
- AutoTrac Diagnostics – 8000 Series Factory Installed
- AutoTrac Diagnostics – 8000 Series Field Installed
- GREENSTAR Parallel Tracking Identification
- Parallel Tracking Diagnostics – 8000 Series Factory Installed
- Parallel Tracking Diagnostics – 8000 Series Field Installed
- GREENSTAR Display Diagnostics
- GREENSTAR Mobile Processor Diagnostics
- STARFIRE Receiver Diagnostics
- GREENSTAR KeyCard Diagnostics
- AutoTrac CAN Bus Identification
- AutoTrac CAN Bus Diagnostics – 8000 Series Factory Installed
- AutoTrac CAN Bus Diagnostics – 8000 Series Field Installed
- AutoTrac CCD Bus Identification
- AutoTrac CCD Bus Diagnostics – 8000 Series Factory Installed
- AutoTrac CCD Bus Diagnostics – 8000 Series Field Installed
- AutoTrac Power Identification
- AutoTrac Power Diagnostics – 8000 Series Factory Installed
- AutoTrac Power Diagnostics – 8000 Series Field Installed
- AutoTrac Status Identification
- AutoTrac Status Diagnostics – 8000 Series Factory Installed
- AutoTrac Status Diagnostics – 8000 Series Field Installed
- AutoTrac Steering Response Identification
- AutoTrac Steering Response Diag. – 8000 Series Factory Installed
- AutoTrac Steering Response Diag. – 8000 Series Field Installed
- AutoTrac Steering Control Unit Identification
- AutoTrac Steering Control Unit Diag – 8000 Series Factory Installed
- AutoTrac Steering Control Unit Diag – 8000 Series Field Installed
- Circuit Code Listing
- Connector Information
AG MANAGEMENT SOLUTIONS (AMS) -FIELD DOC
- GPS Position and StarFire Receiver Operation and Tests
- FIELD DOC is a trademark of Deere & Company Basic Operation and Tests
POWERSHIFT TRANSMISSION
- Operational Checks
- Tests And Adjustments
- Theory of Operation
- Schematics and Diagrams
DRIVE SYSTEMS
- Tests And Adjustments
- Theory of Operation
- Schematics and Diagrams
STEERING AND BRAKES
- Preliminary Checks
- Operational Checks
- Tests And Adjustments
- Theory of Operation
- Schematics and Diagrams
HYDRAULIC SYSTEM
- Preliminary Checks
- Operational Checks
- Tests And Adjustments
- Theory of Operation
- Schematics and Diagrams
OPERATOR STATION
- Preliminary Checks
- Operational Checks
- Tests And Adjustments
- Theory Of Operation
- Schematics and Diagrams
TOOLS
- Fabricated Tools
- Test Kits
- Section 246A
- Section 246B
- Section 246C
- Section 246D



