
John Deere 6120L, 6220L, 6320L, 6420L, 6520L Tractors Repair Manual
Manual Included:
Repair Technical Manual: 2214 Pages (TM4647)
Specifications:
Brand: John Deere
Model: 6120L, 6220L, 6320L, 6420L, 6520L
Serial Number: 100001 – 398790
Type: Tractor
Production: Tractors built in North America
Manuals: Repair
Publication Numbers:TM4647
Language: English
Format: PDF
Other Manual: John Deere 6320L, 6420L, 6520L Tractors Diagnostic Repair Manual
Operation and Tests Manual: 4059 Pages (TM4646)
John Deere 6120L, 6220L, 6320L, 6420L, 6520L Tractors Repair Manual

1. General Information & Safety
- Safety Measures & Foreword
- Technical Specifications
- Engine Tune-Up Procedures
- Predelivery Inspection (PDI)
2. Engine & Auxiliary Systems
- Engine Component Removal and Installation
- Speed Control & Fuel System
- Air Intake and Exhaust Systems
- Cooling System & Cold-Weather Starting Aids
3. Electrical System
- Connectors and Wiring Harnesses
- Charging & Starter Motor Circuits
- Fuses, Relays, and Switches
- Monitoring Systems & Electrical Components
4. Transmission Options
- SyncroPlus: Shift Controls, Perma Clutch II & Gear Transmission
- Power Reverser: Module and Shift Controls
- AutoPowr / IVT: Input/Output Housing & Differential Drive Shaft
- PowrQuad (Plus / AutoQuad): Creeper & Range Transmission
5. Drive Systems & PTO
- U-Jointed Shafts and Torsion Damper
- Front-Wheel Drive (FWD) Clutch
- Differential & Final Drives
- Hydraulic Pump Drive
- Rear & Front PTO (Power Take-Off)
6. Steering, Brakes & AutoTrac
- Hydrostatic Steering & Cylinders
- Brake Valve & Rear Brakes
- AutoTrac™ Assisted Steering System
7. Hydraulic System
- Hydraulic & Charge Oil Pumps
- Rockshaft & Control Valves
- Selective Control Valves (SCV) and Couplers
- Independent Control Valve (ICV)
8. Chassis & Suspension
- Main Frame & Front Axle
- Triple Link Suspension (TLS) for FWD Axle
- Wheels, Fenders, and Trailer Drawbars
9. Operator’s Cab & Comfort
- Controls and Instruments
- Air Conditioning & ClimaTrak™
- Heating System & Seating Options
- Standard & Low-Clearance Cab
- Cab Suspension Systems
10. Service Tools
- Dealer-Fabricated Special Tools
- Essential Service Tools
John Deere 6120L, 6220L, 6320L, 6420L, 6520L Tractors Repair Manual