John Deere 6120 to 6420 and 6120L to 6520L Tractors Index:

• Contents
  • SAFETY
    • Safety Measures
  • GENERAL INFORMATION
    • Specifications
    • Tune-Up
    • Predelivery Inspection
  • ENGINE
    • Installing and Removing Components
  • FUEL, AIR INTAKE, COOLING AND EXHAUST SYSTEMS
    • Speed Control
    • Fuel System
    • Air Intake System
    • Cooling System
    • Cold-Weather Starting Aid
    • Exhaust System
  • ELECTRICAL SYSTEM
    • Connectors
    • Wiring Harnesses
    • Charging Circuit
    • Starter Motor Circuit
    • Fuses, Relays and Switches
    • Monitoring Systems
    • Electrical Components
  • SYNCROPLUS TRANSMISSION
    • Installing and Removing Components
    • Transmission Shift Controls
    • Perma Clutch II Module
    • Gear Transmission
  • POWER REVERSER TRANSMISSION
    • Installing and Removing Components
    • Transmission Shift Controls
    • Power Reverser Module
    • Gear Transmission
  • AUTOPOWR/IVT TRANSMISSION
    • Installing and Removing Components
    • Transmission Shift Controls
    • Input Housing
    • Output Housing
    • Differential Drive Shaft Assembly
  • POWRQUAD, POWRQUAD PLUS AND AUTOQUAD TRANSMISSIONS
    • Installing and Removing Components
    • Transmission Shift Controls
    • PowrQuad Module
    • Creeper Transmission
    • Option Transmission
    • Range Transmission
  • DRIVE SYSTEMS
    • Installing and Removing Components
    • U-Jointed Shafts and Torsion Damper
    • Front-Wheel Drive Clutch
    • Differential
    • Hydraulic Pump Drive
    • Final Drives
    • Rear PTO
    • Front PTO
    • Front Implement Drive
  • STEERING AND BRAKES
    • Hydrostatic Steering
    • Steering Cylinder
    • Brake Valve
    • Rear Brakes
    • AutoTrac
  • Hydraulic System
    • Controls
    • Hydraulic Pump and Charge Oil Pump
    • Valves
    • Rockshaft
    • Selective Control Valves and Couplers
    • Independent Control Valve (ICV)
  • MISCELLANEOUS
    • Installing and Removing Components
    • Main Frame
    • Front Axle
    • Front Wheels, Rear Wheels and Fenders
    • Trailer Mounting and Swinging Drawbar
    • Triple Link Suspension (TLS) of Front-Wheel Drive Axle
  • OPERATOR’S CAB
    • Installing and Removing Components
    • Controls and Instruments
    • Air Conditioning System
    • ClimaTrak
    • Heating System
    • Seats
    • Operator’s Cab
    • Low-Clearance Cab
    • Cab Suspension
  • Special Tools (Dealer-Fabricated)
    • Special Tools (Dealer-Fabricated)
    • Special Tools (available from the dealer)
• Page Numbers
  • Section 05
    • Group 05
  • Section 10
    • Group 05
    • Group 10
    • Group 15
  • Section 20
    • Group 00
  • Section 30
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 25
    • Group 30
  • Section 40
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 25
    • Group 30
    • Group 40
  • Section 50
    • Group 00
    • Group 05
    • Group 10
    • Group 15
  • Section 51
    • Group 00
    • Group 05
    • Group 10
    • Group 15
  • Section 53
    • Group 00
    • Group 05
    • Group 10
    • Group 15
    • Group 20
  • Section 55
    • Group 00
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 25
  • Section 56
    • Group 00
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 25
    • Group 30
    • Group 35
    • Group 40
  • Section 60
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 40
  • Section 70
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 25
    • Group 30
  • Section 80
    • Group 00
    • Group 05
    • Group 10
    • Group 15
    • Group 20
    • Group 25
  • Section 90
    • Group 00
    • Group 05
    • Group 10
    • Group 11
    • Group 15
    • Group 20
    • Group 25
    • Group 26
    • Group 30
  • Section 99
    • Group 05
    • Group 10