John Deere 8120T 8220T 8320T 8420T 8520T Tracked Tractors Operation and Test Manual TM1981

The John Deere 8120T 8220T 8320T 8420T 8520T Tracked Tractors Operation and Test Manual provides detailed operation, testing, and diagnostic information for the 8120T, 8220T, 8320T, 8420T, and 8520T tracked 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 tools.

Specifications: SM

Brand: John Deere 8000-9000 Series Tractors
Type of Document: Operation and Test Manual
Type of Equipment: Tracked Tractor
Model: 8120T, 8220T, 8320T, 8420T, 8520T
Manual Number: TM1981
Language: English
Format: PDF

Details:

Introduction

Foreword

GENERAL

Safety
General References

SERVICE CODES

ACU Code Diagnostics
AMS General Diagnostic Codes
ATC Code Diagnostics (902001-)
CCU Code Diagnostics
ECU 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

Electrical
Ag Management Solutions (AMS)
Hitch
Heating, Ventilation and Air Conditioning (Standard)
Heating, Ventilation and Air Conditioning – CLIMATRAK (ATC) (-902000)
Heating, Ventilation and Air Conditioning – CLIMATRAK (ATC) (902001-)
Operator Station
Power Take-Off (PTO)
Selective Control Valves (SCV)
Steering
Transmission
Hydraulics

SYSTEM DIAGNOSIS

Electrical
Transmission System
Steering and Brakes System
Hydraulic System
CLIMATRAK (ATC) System (902001-)
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

Codes and Addresses
ACU References
CLIMATRAK (ATC) References
CCU References
ECU 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
Diagnostic Addresses
AutoTrac Identification
AutoTrac Diagnostics – 8000 Series Factory Installed
AutoTrac Diagnostics – 8000 Series Field Installed
GREENSTAR is a trademark of Deere & Company Parallel Tracking Identification
Parallel Tracking Diagnostics – 8000 Series Factory Installed
Parallel Tracking Diagnostics – 8000 Series Field Installed
GREENSTAR is a trademark of Deere & Company Display Diagnostics
GREENSTAR is a trademark of Deere & Company Mobile Processor Diagnostics
STARFIRE Receiver Diagnostics
GREENSTAR is a trademark of Deere & Company KeyCard Diagnostics
AutoTrac CAN Bus Identification
AutoTrac CAN Bus Diagnostics – 8000 Series Factory Installed
AutoTrac CAN Bus Diagnostics – 8000 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 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

STEERING AND BRAKES

Preliminary Checks
Operational Checks
Tests and Adjustments
Theory of Operation
Schematics and Diagrams

HYDRAULICS

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

John Deere 8120T 8220T 8320T 8420T 8520T Tracked Tractors Operation and Test Manual TM1981