John Deere 6120L, 6220L, 6320L, 6420L, 6520L Operation and Tests Manual
Manual Included:
Operation and Tests Manual: 4059 Pages (TM4646)
Specifications:
Brand: John Deere
Model: 6120L, 6220L, 6320L, 6420L, 6520L
Serial Number: 100001 – 398790
Type: Tractor
Production: Tractors built in North America
Manuals: Operation and Test
Publication Numbers:TM4646
Language: English
Format: PDF
John Deere 6120L, 6220L, 6320L, 6420L, 6520L Operation and Tests Manual
1. General Maintenance & Checks
- Safety Measures and General References
- Operational Check-Out Procedures
- System Tests and Adjustments
- Operational Diagnostics
- Performance Tests and Adjustments
- Air Intake and Cooling System Operation
3. Electrical Diagnostics & Schematics
- Sub-System Diagnostics (Cab & Open Operator’s Station)
- Functional Schematics: AutoPowr, IVT, PowrQuad Plus, and AutoQuad
- Wiring Harness Summary (Including Serial Number specific: SN 398656+)
- Component Testing & Circuit Theory
4. Electronic Control Units (ECU) Diagnostics
- Data BUS Systems: Theory of Operation and Diagnostics
- Control Unit Programming & Troubleshooting:
- Engine & Transmission: ECU, TCU, EPC, PLC
- Chassis & Comfort: ATC (Climate), BCU, BIF, SFA (Suspension)
- Guidance & Connectivity: SSU (AutoTrac), JDL (JDLink)
- Hydraulics & Implements: SIC, TEC, UIC, UIM (ISOBUS)
5. Transmission Systems
- SyncroPlus & Power Reverser: Checks and Adjustments
- AutoPowr / IVT: Operational Diagnostics
- PowrQuad & AutoQuad Plus: Full System Operation
6. Drive Systems, Steering & Brakes
- Driveline Operational Check-Out
- Hydrostatic Steering Tests
- Brake System Operation and Adjustments
7. Hydraulics & Operator Station
- Hydraulic System Tests and Adjustments
- Operator Cab Controls and Instruments
- Miscellaneous Component Operation
8. Service & Special Tools
- Dealer-Fabricated Special Tools
- Technical Test Equipment
Other Manuals: Repair Technical Manual: 2214 Pages (TM4647)
John Deere 6320L, 6420L, 6520L Tractors Diagnostic Repair Manual