
John Deere 7220 7320 7420 7520 Tractors Operation and Test Manual TM2047
The John Deere 7220 7320 7420 7520 Tractors Operation and Test Manual provides detailed information for diagnostic trouble codes, observable symptoms, system diagnostics, and engine operation and testing. It covers fuel, air intake and cooling systems, electrical system diagnostics, electronic control units, AutoPowr/IVT and PowrQuad/PowrQuad-Plus transmissions, and drive systems. The manual also includes steering and brakes, hydraulic system, MFWD, and operator’s cab operational checks, tests, adjustments, and theory of operation. Special tools and test equipment, including dealer-fabricated tools, are also covered.
Specifications:
- Brand: John Deere 7000 Series Tractors
- Type of Document: Operation and Test Manual
- Type of Equipment: Tractor
- Model: 7220, 7320, 7420, 7520
- Manual Number: TM2047
- Language: English
- Format: PDF

Details:
Table of Contents
Introduction
- Foreword
SAFETY
- Safety Measures
- General References
DIAGNOSTIC TROUBLE CODES
- ATC Diagnostic Trouble Codes
- BCU Diagnostic Trouble Codes
- BIF Diagnostic Trouble Codes
- ECU Diagnostic Trouble Codes
- EPC Diagnostic Trouble Codes
- JDL Diagnostic Trouble Codes
- PLC Diagnostic Trouble Codes
- PRF Diagnostic Trouble Codes
- SFA Diagnostic Trouble Codes
- SIC Diagnostic Trouble Codes
- SSU Diagnostic Trouble Codes
- TCU Diagnostic Trouble Codes
- TEC Diagnostic Trouble Codes
- UIC Diagnostic Trouble Codes
OBSERVABLE SYMPTOMS
- Engine
- Electrical System
- Transmission
- Drive Systems
- Steering and Brakes
- Hydraulic System
- Operator’s Cab
SYSTEM DIAGNOSTICS
- Electronics
ENGINE
- Additional Information
- Operational Checkout
- Checks and Adjustments
- Theory of Operation
FUEL, AIR INTAKE AND COOLING SYSTEMS
- Tests and Adjustments
- Descriptions
ELECTRICAL SYSTEM
- Sub-System Diagnostics
- Sub-System Diagnostics (Open Operator’s Station)
- Component Testing
- Functional Schematics (AutoPowr / IVT Transmission)
- Functional Schematics (PowrQuad-Plus Transmission)
- Functional Schematics (Open Operator’s Station)
- Wiring Harnesses
- Wiring Harnesses from Serial No. 12451
ELECTRONIC CONTROL UNITS
- General Operating Instructions and Diagnostic Information
- Data Bus Systems – – Diagnostics
- Data BUS Systems, Theory of Operation
- ATC – Control Unit for ClimaTrak
- BCU – Basic Control Unit
- BIF – Basic Informator
- ECU – Engine Control Unit
- EPC – Control Unit for PowrQuad-Plus Transmission
- JDL – Control Unit for JDLink
- PLC – Park Lock Controller
- PRF – Performance Monitor
- SFA – Control Unit for MFWD Axle and Cab Suspension
- SIC – E-SCV/E-ICV Controller
- SSU – Control Unit for AutoTrac
- TCU – Control Unit for AutoPowr / IVT Transmission
- TEC – Tractor Equipment Controller
- UIC – User Interface Controller
AutoPowr / IVT TRANSMISSION
- Operational Checkout
- Tests and Adjustments
- Operation
PowrQuad and PowrQuad-Plus TRANSMISSIONS
- Introductory Checks
- Operational Checkout
- Tests and Adjustments
- Operation
DRIVE SYSTEMS
- Operational Checks
- Tests and Adjustments
- Operation
STEERING AND BRAKES
- Introductory Checks
- Operational Checkout
- Tests and Adjustments
- Operation
HYDRAULIC SYSTEM
- Operational Checkout
- Tests and Adjustments
- Theory of Operation
MFWD
- Operational Checkout
- Tests and Adjustments
- Operation
OPERATOR’S CAB
- Operational Checks
- Tests and Adjustments
- Theory of Operation
SPECIAL TOOLS (Dealer-Fabricated)
- Special Tools (Dealer-Fabricated)
- Special Tools and Test Equipment



