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John Deere 6820 6920 6920S Tractor Repair Technical Manual TM4756
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John Deere 6820 6920 6920S Tractor Repair Technical Manual TM4756
Size: 43.81 MB
Format: PDF
Language: English
Brand: John Deere
Type of Machine: Tractor
Type of Manual: Repair Technical Manual
Model: John Deere 6820 6920 6920S Tractor
Part Number: TM4756
Number of Pages: 1250 Pages
Contents:
Safety
Safety information
Recognize Safety Information
"Important" - Information
"Note" - Information
Prevent Machine Runaway
Handle Fluids Safely—Avoid Fires
Prevent Battery Explosions
Prepare for Emergencies
Prevent Acid Burns
Avoid High-Pressure Fluids
Service Cooling System Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Work In Ventilated Area
Wear Protective Clothing
Practice Safe Maintenance
Park Machine Safely
Use Proper Lifting Equipment
Construct Dealer-Made Tools Safely
Support Machine Properly
Work in Clean Area
Illuminate Work Area Safely
Service Machines Safely
Use Proper Tools
Service Tires Safely
Service Front-Wheel Drive Tractor Safely
Working on the Air Brake System
Avoid Eye Contact With Radar
Keep ROPS Installed Properly
Replace Safety Signs
Dispose of Waste Properly
Live With Safety
Safety Measures for Electronic Control Units
General information
Specifications
Technical data (summary of references)
Engine specifications
Cooling circuit
Injection pump (Bosch VP44)
Air Intake System
Electrical system
Hydrostatic Steering System
Clutch
AutoPowr/IVT transmission
PowrQuad Plus transmission
AutoQuad II transmission
Creeper transmission
Rear PTO
Front PTO
Differential assembly
Differential lock
Final drives
Front Wheel Drive
FWD Axle with TLS
Hydraulic Brakes
Handbrake
Parking Lock
Hydraulic System with Axial Piston Pump
Rockshaft
Front Hitch
Ground Speeds
Front and Rear Wheels
Dimensions and Weights
Capacity specifications
Handling and Storing Diesel Fuel
Diesel Fuel
Lubricity of Diesel Fuel
Diesel Engine Break-In Oil
Diesel Engine Oil
Transmission and Hydraulic Oil
Front Wheel Drive Axle Oil
Diesel Engine Coolant
Supplemental Coolant Additives
Grease
Oil Filters
Mixing of Lubricants
Lubricant Storage
Operating in Warm Temperature Climates
Alternative and Synthetic Lubricants
Unified Inch Bolt and Cap Screw Torque Values
Metric Bolt and Cap Screw Torque Values
Hydraulic system inch fitting torques
Hydraulic system metric fitting torques
Product identification and component serial numbers
Engine serial number
Transmission serial number
Front wheel drive axle serial number
Operator's cab serial number
Sub-assembly serial numbers
Tune-up
Tune-up (summary of references)
Repair specifications
Using High-Pressure Washers
Preliminary engine test
Tractor tune-up
Removing and Cleaning the Primary Air Cleaner Element
Checking the Air Cleaner Safety Element
Installing the Primary Filter Element
Checking the Air Intake System Connections for Leaks
Checking the Crankcase Vent Hose for Clogging
Cleaning the Radiator Grille Screen
Keeping the Radiator Screen Clean
Checking the Caps on the Expansion Tank
Checking the Radiator for Leaks
Checking the engine's thermostat
Checking the fuel transfer pump operation
Bleeding the Fuel System (Tractors Equipped with Bosch VP44 Injection Pump)
Checking the fuel filter (with Bosch VP44 injection pump)
Cleaning the water trap
Run the engine until it is warm, and check engine speeds
Check setting of fuel injection pump
Cleaning the Battery, Cables and Battery Box with a Clean Cloth
Checking the neutral start circuit
Checking operation of starter motor
Checking the lighting circuit
Final Engine Check
Tractor Operation Check
Inspection before delivery
Predelivery Inspection
Engine
Installing and removing components
Special tools
Repair specifications
Removing the engine
Installing the engine
Fuel, air intake, heating, exhaust system
Speed control
Speed control linkage (summary of references)
General Information
Specifications
Adjusting the Hand Throttle Lever and Accelerator Pedal
Adjusting the Speed Control Linkage
Hand Throttle Lever—Exploded View
Accelerator Pedal, with Mechanical Speed Control
Accelerator Pedal, With Electronic Speed Control ("Cruise Control")
Adjusting the accelerator pedal (6920S)
Changing the accelerator pedal potentiometer
Replacing the Accelerator Pedal Assembly (AutoPowr/IVT)
Removing the Accelerator Pedal's Potentiometer
Removing the Hand Throttle's Potentiometer
Fuel system
Summary of references (fuel system)
General Information
Removing the Fuel Tank
Installing the Fuel Tank
Replacing the fuel gauge sender
Replacing the fuel transfer pump
Changing the Fuel Filter
Bleeding Air from the Fuel System (with Bosch VP44 Injection Pump)
Installing Check Valve in Fuel System
Air intake system
General Information
Air filter - Exploded view
Replacing the Sending Unit for Air Cleaner Restriction (B02)
Heating system
Cooling system (summary of references)
General Information
Repair specifications
Removing the radiator
Changing the Fan or the Viscous Fan Drive
Removing and Installing the Expansion Tank
Removing and installing the thermostat valve
Installing the radiator
Relieving Tension on the Drive Belt
Replacing the Drive Belt
Replacing the Drive Belt Tensioner
Repairing the Fan Console
Cold-weather starting aid
Cold-weather starting aids (summary of references)
Fuel Preheater
Electrical Starting Aid
Coolant Heater
Exhaust system
Exhaust system (summary of references)
General Information
Repair specifications
Exhaust system to top right
Electrical equipment
Electrical connectors
Special or Essential Tools
General
Using high-pressure washers
Disconnecting electrical circuits
Stripping Wire Ends
Installing a terminal
WEATHER PACK Connectors
METRI PACK connector with terminal lock at the rear
METRI PACK connector with terminal lock at the front
METRI PACK connector
Connectors for electronic control units
Connector for injection pump
Connector at CAN bus terminating resistor
CRIMP SNAP IN connectors
Connectors
Blade Terminals
CPC Connectors
KOSTAL connectors
DEUTSCH Connectors
Changing terminals
Relay socket
Fuse and Relay Boxes
Wiring harnesses
Wiring harnesses — Repairing (summary of references)
Disconnecting electrical circuits
Ground Point Locations
Removing and Installing Harness W01 — Power Supply
Removing and Installing Harness W02 — 6-Cylinder Engine, Level 4
Removing and Installing Harness W03 — Starting Aid, Level 4
Removing and Installing Harness W04 — Headlights
Removing and Installing Harness W05 — Front Corner Worklights
Removing and Installing Harness W06 — Front-Wheel Drive Axle with TLS
Removing and Installing Harness W07 — Front PTO
Removing and Installing Harness W08 — Cab
Removing and Installing Harness W08 — Cab (AutoPowr/IVT Transmission)
Removing and Installing Harness W09 — Cowl
Removing and Installing Harness W09 — Cowl (AutoPowr/IVT Transmission)
Removing and Installing Harness W10 — Shift Console
Removing and Installing Harness W11 — Transmission Shift and Hand Throttle
Removing and Installing Harness W11 — Speed Control Lever and Hand Throttle (AutoPowr/IVT Transmission)
Removing and Installing Harness W12 — Command Arm (AutoPowr/IVT Transmission)
Removing and Installing Harness W13 — Clutch Sender
Removing and Installing Harness W14 — 3-Terminal Power Outlet Socket
Removing and Installing Harness W15 — Engine Control Unit (ECU) (Level 4)
Removing and Installing Harness W16 — E-SCV / E-ICV Controller (SIC)
Removing and Installing Harness W17 — Multifunction Unit
Removing and Installing Harness W18 — Windshield Wiper Switch (Without Intermittent Wipe)
Removing and Installing Harness W18 — Windshield Wiper Switch (With Intermittent Wipe)
Removing and Installing Harness W19 — Cab Roof
Removing and Installing Harness W20 — L.h. Turn Signal and Clearance Lights, with Light on L.h. Side of Cab Frame
Removing and Installing Harness W20 — R.h. Turn Signal and Clearance Lights, with Light on R.h. Side of Cab Frame
Removing and Installing Harness W20 — L.h. Turn Signal and Clearance Lights, with Worklight on L.h. Side of Cab Frame
Removing and Installing Harness W20 — R.h. Turn Signal and Clearance Lights, with Worklight on R.h. Side of Cab Frame
Removing and Installing Harness W21 — Worklights on Front of Cab Roof
Removing and Installing Harness W22 — Worklights on Rear of Cab Roof
Removing and Installing Harness W23 — Windshield Wiper Switch (Without Switch for Windshield)
Removing and Installing Harness W23 — Windshield Wiper (With Switch for Windshield)
Removing and Installing Harness W24 — Rear Window Wiper
Removing and Installing Harness W25 — Rear Window Wiper Switch
Removing and Installing Harness W26 — Fan and Air Conditioner
Removing and Installing Harness W28 — Front End of Transmission
Removing and Installing Harness W28 — Front End of Transmission (AutoPowr/IVT Transmission)
Removing and Installing Harness W29 — Valve Block (AutoPowr/IVT Transmission)
Removing and installing harness W30 — Rear end of transmission
Removing and installing harness W30 — Rear end of transmission with E-SCV / E-ICV
Removing and Installing Harness W31 — 7-Terminal Power Outlet Socket
Removing and Installing Harness W32 — Stepper Motors
Removing and Installing Harness W33 — Service
Charging current circuit
Specifications
Repairing the Alternator
Disconnecting Electrical Circuits
Relieving the Drive Belt
Remove/Install the Alternator
Starting current circuit
Special tools
Specifications
Repairing the Starting Motor
Disconnecting Electrical Circuits
Removing and installing the starter motor
Fuses, relays and connectors
Note
Special or Essential Tools
Repair specifications
Fuses, relays and switches — Repairing (summary of references)
Disconnecting electrical circuits
Fuse and Relay Boxes on Tractors with Operator's Cab
Fuse and Relay Boxes on Tractors with Operator's Cab and AutoPowr/IVT Transmission
Replacing the main fuses
Replacing the Fuses at the Electrical Starting Aid, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Injection Pump Fuse, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Starting Motor Relay, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Relay for the Electrical Starting Aid, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Injection Pump Relay, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Main Switch
Replacing the Brake Switches
Replacing the Light Switch
Replacing the Worklight Switches
Replacing the Switch for Lights on Cab Frame
Replacing the Beacon Light Switch
Replacing the Hazard Warning Light Switch
Replacing Switches on Multi-Function Unit
Replacing the Rear Window Wiper and Washer Switch
Replacing the Windshield/Rear Window Switches
Replacing the Dome Light Door Switch
Replacing the Handbrake Switch
Replacing the Front-Wheel Drive Switch
Replacing the Headland Management (HMS) Switch
Replacing the Record/Save Switch
Replacing the Program Switch
Replacing the Rear PTO Preselector Switch
Replacing the Switch for AutoQuad Transmission
Replacing the Gear Selector Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions
Replacing the Park Lock Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions
Replacing the Fan Switch
Replacing the Switch of the Air-Conditioning System Compressor
Replacing the Differential Lock Switch
Replacing the PTO Switch
Replacing the External Control Switch for the Rear PTO
Replacing the Rockshaft's Remote Control Switch
Replacing the Switch for the Electrical Rear-View Mirror
Replacing the Switch for the Heated Rear-View Mirror
Replacing the Switch for the Heated Rear Window
Replacing the Cruise Control Potentiometer on Tractors with AutoQuad Transmission
Replacing the Cruise Control Potentiometer on Tractors with AutoPowr/IVT Transmission
Rockshaft Control
Electrical Activators for Selective Control Valves (E-SCV)
Electrical Activators for Independent Control Valves (E-ICV)
Monitoring systems
Note
Note
Monitoring systems — Repairing (summary of references)
Disconnecting electrical circuits
Replacing the sender for the coolant temperature gauge (B08)
Replacing the Wheel Speed Sending Unit (B09)
Replacing the Sending Unit for Transmission Output Speed (B84) on Tractors with AutoPowr/IVT Transmission
Replacing the Acoustic Alarm
Replacing the Acoustic Alarm (Park Lock) on Tractors with AutoPowr/IVT Transmission
Electrical components
Note
Specifications
Electrical Components — Reconditioning (Summary of References)
Disconnecting electrical circuits
Replacing the 7-Terminal Power Outlet Socket
Replacing the 3-Terminal Power Outlet Socket
Replacing the Multiple Power-Outlet Socket Strip
Replacing the Service Socket
Removing the Wiper Motor
Adjusting the Headlights
Adjusting the Lights on the Cab Frame
Lights with Halogen Bulbs
Worklights with Xenon Bulbs
AutoPowr/IVT transmission
Removing and installing the AutoPowr/IVT transmission
Special tools
Dealer-fabricated special tools
Repair specifications
Removing the AutoPowr/IVT transmission
Installing the AutoPowr/IVT transmission
Transmission shifting mechanisms
AutoPowr/IVT Transmission Shift Units—Reconditioning (Summary of References)
Reconditioning the Speed Control Lever
Reconditioning the Reverser Control
Repairing the clutch actuation mechanism
Reconditioning the Manual Park Lock Release Mechanism
Releasing the Park Lock Manually
Input housing
Special tools
Repair specifications
AutoPowr/IVT transmission, input housing — Repairing (summary of references)
Installing and removing the vibration damper
Removing the clutch control block
Repairing the clutch control block
Installing the clutch control block
Removing and installing the transmission oil filter
Removing the system pressure control block
Repairing the system pressure control block
Installing the system pressure control block
Removing the transmission oil pump
Repairing the transmission oil pump
Installing the transmission oil pump
Removing and installing the front plate
Replacing the hydrostatic speed sender (B62)
Output housing
Special tools
Repair specifications
AutoPowr/IVT transmission, output housing — Repairing (summary of references)
Removing park lock control block
Repairing the park lock control block
Installing the park lock control block
Repairing the locking pawl of the park lock
Replacing the transmission speed sender (B63)
Replacing the transmission input speed sender (B61)
Replacing the transmission output sender (B84)
Assembling the intermediate shaft
Specifications
Repairing the intermediate shaft
PowrQuad, PowrQuad Plus and AutoQuad transmission
Installing and removing components
Special tools
Dealer-fabricated special tools
Repair specifications
PowrQuad Plus Transmission, Removal and Installation
AutoQuad Transmission, Removal and Installation
Removing the PowrQuad transmission
Installing the PowrQuad transmission
Removing the creeper transmission
Installing the Creeper Transmission
Removing the range transmission
Installing the range transmission
Transmission shifting mechanisms
Repair specifications
PowrQuad transmission shift controls — Repairing (summary of references)
Repairing the range shift linkage (PowrQuad Plus and AutoQuad transmissions)
Checking and adjusting the shift units (PowrQuad Plus and AutoQuad transmission)
Repairing the clutch actuation mechanism (PowrQuad Plus and AutoQuad transmissions)
PowrQuad module
Special tools
Repair specifications
PowrQuad, PowrQuad Plus and AutoQuad Transmissions—Summary of References
Transmission Components
Replacing the temperature sensor and pressure switches
Removing and Installing the Oil Filter Housing
Removing and Installing the Front Valve Housing
Removing and installing the valves in the front valve housing
Removing and installing the front transmission cover
Valves in front transmission cover, removing and installing
Removing and Installing the Shift Valve Housing
Removing and installing the valves in the shift valve housing
Removing the Transmission Oil Pump
Repairing the transmission oil pump
Installing the Transmission Oil Pump
Removing the Gear-Shift Planetary Drive
Repairing the gear-shift planetary drive
Installing the gear-shift planetary drive
Removing the B1 Brake Housing
Reconditioning the B1 Brake
Installing the B1 Brake Housing
Removing the B2-B3 Brake Housing
Reconditioning the B2 Brake
Reconditioning the B3 Brake
Installing the B2-B3 Brake Housing
Removing the C4 Clutch
Repairing the C4 clutch
Installing the C4 Clutch
Removing the reverse brake
Repairing the reverse brake
Installing the reverse brake
Removing the Forward Clutch with Planetary Drive (Forward/Reverse)
Repairing the forward clutch with planetary drive (forward/reverse)
Installing the Forward Clutch with Planetary Drive (Forward/Reverse)
Replacing the output shaft
Creeper transmission
Special tools
Repair specifications
Creeper transmission — Repairing (summary of references)
Removing the creeper transmission
Repairing the creeper transmission
Installing the creeper transmission
Range transmission
Special tools
Repair specifications
Range transmission — Repairing (summary of references)
Removing the range transmission
Range transmission — Sectional view
Repairing the range transmission
Installing the range transmission
Repairing the shift cover
Replacing the speed sender
Transmission (without gear)
Installing and removing components
Special tools
Dealer-fabricated special tools
Repair specifications
Removing the FWD clutch
Installing the FWD clutch
Removing the differential housing
Installing the differential housing
Removing the final drives
Installing the final drives
Removing the rear PTO
Installing the rear PTO
Removing the front PTO
Installing the Front PTO
U.J. Shaft and torsion damper
Summary of references (u.j. shafts and torsion damper)
Repair specifications
Removing the U.j. Shaft (FWD)
Reconditioning the U.j. Shaft (FWD)
Installing the U.j. Shaft (FWD)
Removing the U.j. Shaft (Engine)
Removing and Installing the Ring-Shaped Cooler
Removing the Torsion Damper
Changing the Torsion Damper Bearings
Installing the Torsion Damper
Installing the U.j. Shaft (Engine)
FWD clutch
FWD clutch — Repairing (summary of references)
Special tools
Other material
Repair specifications
Front-wheel drive clutch — Sectional view
FWD clutch — Exploded view
FWD clutch — Replacing speed sensor
FWD clutch — Replacing solenoid valve
Replacing the FWD clutch
Differential
Differential — Reconditioning (Summary of References)
Special tools
Specifications
Removing the differential
Disassembling the differential
Differential — Exploded view
Assembling the differential
Installing the differential
Hydraulic pump drive
Special tools
Repair specifications
Remove and Disassemble Pump Drive Pinion Gear
Removing and disassembling the pump drive gear
Assembling and installing pump drive gear
Assembling and installing the pump drive pinion
Checking and adjusting the backlash of the pump drive pinion
Final drives
Special tools
Other Material
Specifications
Repair Instructions
Removing the planetary carrier
Disassemble Planet Pinion Carrier
Assemble Planet Pinion Carrier
Remove Axle Housing
Disassemble and Assemble Axle Housing
Disassemble and Assemble Axle Shaft
Install Axle Housing
Installing the planetary carrier and checking rolling resistance torque
Rear PTO
Special tools
Specifications
Repair Instructions
Repair Rear PTO
Remove and Disassemble Countershaft
Assemble and Install Countershaft
Remove and Disassemble Output Shaft
Assemble and Install PTO Output Shaft
Remove PTO Shifter
Install PTO Shifter
Replacing Oil Seal on PTO Output Shaft
Remove Modulating Valve
Disassemble and Assemble Modulating Valve
Install Modulating Valve
Changing and adjusting the bowden cable
Steering and brakes
Hydrostatic steering
Hydrostatic steering (summary of references)
Special tools
Specifications
Preliminary Work
Removing steering column and steering valve
Disassembling the Steering Valve
Exploded View of Steering Valve
Assembling the Steering Valve
Adjusting the Shock Valves
Steering Wheel and Steering Column (With Cab)
Reconditioning the Steering Column
Installing steering column and steering valve
Brake valve
Brake Valve with Power-Fill
Power-Fill Brake Valve with MFWD and Disk Brake
Rear wheel brakes
Specifications
Preliminary Work
Removing the Rear Brakes
Rear Brakes—Exploded View
Repairing the Rear Brakes
Installing the Rear Brakes
Final Assembly
Bleeding the brakes (brake valve with Power-Fill brakes, MFWD and disk brake)
Handbrake
Handbrake (summary of references)
Specifications
Preliminary work
Removing the Handbrake
Exploded view of handbrake - Tractor 6820
Exploded view of handbrake - Tractors 6920 and 6920S
Installing the handbrake
Adjusting the Brake Band
Final assembly
Handbrake components
Replacing the handbrake cable
Adjusting the Handbrake
Hydraulic trailer brakes
Hydraulic trailer brake (summary of references)
Special or Essential Tools
Specifications
Repair Instructions
Changing the Trailer Brake Valve
Cleaning the Trailer Brake Valve
Cleaning the Screen
Replacing the Check Valve
Bleeding the Trailer Brake Valve
Checking the Trailer Brake Valve
Adjusting the Trailer Brake Valve
Air brake system
Air brake system (summary of references)
Special tools
Repair specifications
Safety instructions
Screw Union Installation
Changing the Compressor
Gaskets for the Compressor
Changing the compressed air tank
Changing the preload valve
Changing the pressure-relief valve
Changing the pressure-regulating valve
Changing the trailer control valve (dual-line + single-line brake)
Changing the trailer control valve (single-line brake)
Changing the Coupling Ends
Changing the Pressure Gauge
Test sequence
Checking the system for leaks
Checking the "Supply" Coupling End
Checking the Dual-Line Brakes
Checking the Single-Line Brakes
Adjusting the air brake system handbrake
Hydraulic system
Control elements
Specifications
Selective Control Valves — Removing and Installing the Actuating Elements
Selective Control Valves — Adjusting the Bowden Cable
Removing and Installing the Multifunction Lever
Adjusting the Multifunction Lever
Hydraulic pump and charge oil pump
Other Material
Specifications
Removing and installing the charge pump
Reconditioning the Charge Pump
Charge Pump - Checking the Lube Oil Valve
Hydraulic Oil Reservoir — Restrictor
Hydraulic Pump — Removing and Installing the Pressure-and-Flow Controller
Hydraulic Pump — Reconditioning the Pressure-and-Flow Controller
Removing and Installing the Hydraulic Pump
Reconditioning the Hydraulic Pump
Valves
Special or Essential Tools
Special Tools (Dealer Fabricated)
Specifications
Hydraulic System — General Instructions on Safety and Repair
Direct Control of Rockshaft
Removing the Rockshaft Valve
Reconditioning the Rockshaft Valve
Rockshaft Valve — Depth to Which Raising and Lowering Valves are Screwed In
Rockshaft Valve — Removing and Installing the Stepper Motor
Rockshaft Valve — Centering the Stepper Motor
Installing the hitch valve
Removing the main block
Reconditioning the Main Block
Installing the main block
Reconditioning the Hydraulic Oil Filter
Rockshaft
Other Material
Repair specifications
Rockshaft — Removing and Installing the Electronic Control Unit
Hitch — Removing and installing the position sensor and toothed segment
Hitch — Removing and installing the lift shaft
Hitch — Removing the lift shaft cylinders
Hitch — Repairing the lift cylinder
Hitch — Installing the lift cylinders
Hitch — Removing and installing the draft load potentiometer and draft link support
Additional control units and reception couplings
Special Tools (Dealer Fabricated)
Other Material
Repair specifications
Repairing the selective control valves and couplers — Summary of references
Reconditioning the Selective Control Valves and Couplers — General Instructions on Safety and Reconditioning
SCV identification
Installing the shuttle valves
Removing the Selective Control Valves
Series 100 selective control valves — Repairing
Series 200/300 selective control valves (mechanically actuated) — Replacing the control knobs
Series 200/300 selective control valves (mechanically actuated) — Inspecting the check valves
Series 200/300 selective control valves (mechanically actuated) — Inspecting the inlet check valve and metering valve
Series 200 selective control valves — Repairing
Series 300 selective control valves (mechan actuated) — Inspecting the pressure compensator valve
Series 300 selective control valves (mechan actuated) — Repairing
Series 300 Selective Control Valves (Electrically Actuated) — Inspecting the Check Valves
Series 300 Selective Control Valves (Electrically Actuated) — Inspecting the Inlet Check Valve
Series 300 Selective Control Valves (Electrically Actuated) — Inspecting the Pressure Compensator Valve
Series 300 Selective Control Valves (Electrically Actuated) — Reconditioning
Installing the Selective Control Valves
Selective Control Valves — Installing the Endplate
Selective Control Valves — Reconditioning the Couplers
Indepent additional control unit
Other Material
Specifications
Removing the Independent Control Valve (ICV)
Reconditioning the Independent Control Valve
Independent Control Valve — Reconditioning the Inlet Plate
Assembling the Independent Control Valve
Installing the Independent Control Valve
Miscellaneous
Installing and removing components
Special tools
Dealer-Fabricated Special Tools
Repair specifications
Removing and installing the main frame (summary of references)
Removing the main frame
Installing the main frame
Removing and installing the front axle or front-wheel drive axle (summary of references)
Removing the front wheel drive axle
Installing the front-wheel drive axle
Removing the FWD axle with TLS
Installing the front-wheel drive axle with TLS
Removing and installing the front axle support (summary of references)
Removing the front axle support
Installing the front axle support
Main frame
Repair specifications
Repairing the main frame
Front and rear wheels
Special tools
Repair specifications
Removing the front and rear wheels
Installing the front and rear wheels
Trailer support and counterweight pendant
Trailer mounting and swinging drawbar — Repairing (summary of references)
Repair specifications
Installing trailer mounting for center link
Installing guide rails
Repairing the Automatic Trailer Hitch (One-Lever Operation)
Repairing the Automatic Trailer Hitch (Two-Lever Operation)
Remote control for automatic trailer hitch
Reconditioning the height-adjustable trailer hitch (Italy and Spain only)
Swinging drawbar - Exploded view
Swinging drawbar (with pick-up hitch)
Axle suspension of TLS front wheel drive axle
Triple Link Suspension (TLS) of FWD Axle—Summary of References
Special or Essential Tools
Other material
Repair specifications
Relieving Pressure in the Hydraulic System
Removing/Installing the oscillation limiter
Removing the Panhard link
Installing the Panhard link
Removing and installing the sensor rod
Removing the position sensor
Reconditioning the Position Sensor
Installing the position sensor
Removing hydraulic cylinder
Repairing the hydraulic cylinder
Installing the hydraulic cylinder
Removing the control valve block
Reconditioning the Valves in the Control Valve Block
Installing the Control Valve Block
Removing the Accumulator
Reconditioning the Accumulator
Installing the Accumulator
Removing and repairing the bearing support
Installing the bearing support
Hydraulic wagon hitch
Pick-up hitch—Summary of references
Repair specifications
Other material
Hydr. pick-up hitch—General safety and repair information
Removing and installing pick-up hitch
Control lever and lift links — Exploded view
Frame assembly — Exploded view
Hydraulic Parts
Repairing the retainer spring
Repairing the latch housing
Repairing the hydraulic cylinder
Adjusting the lift links
Adjusting the locking pin
Adjusting the guide stop
Hydr. pick-up hitch—Operational check
Operator's cab
Installing and removing components
Special or Essential Tools
Dealer-Manufactured Special Tools
Repair specifications
Tilting operator's cab and removal and installation
Tilting the operator's cab upward
Tilting the operator's cab downward
Removing the operator's cab
Installing the operator's cab
Checking and adjusting shift units
Controls and instruments
Controls and instruments (summary of references)
Replacing Bulbs on the Instrument Unit
Removing Control Unit
Removing Control Unit for the Lighting System
Replacing control unit (BCU)
Replacing the control unit (SFA)
Replacing control unit (SIC)
Replace Control Unit (ECU)
Replacing control unit (UIC/PLC)
Replacing terminating bus resistors
Replacing the Performance Monitor (PRF)
Replacing Instrument Unit (BIF)
Air-conditioning system
Air-conditioning system (summary of references)
Special Tools
Specifications
Torques for Tightening Refrigerant Hoses
Safety At Work
Handling Refrigerant
In an Emergency
Safety Equipment
Storage of Refrigerant Containers
R134A Refrigerant
Important Note
Discharging the system
Evacuating the system
Filling with refrigerant oil
Instructions for Starting Up the DENSO Air-Conditioning Compressor
Filling the system
Topping up a partly discharged system
Leak test
Removing the Compressor
Checking Level in the Compressor
Disassembling the Compressor Clutch
Checking Clutch Hub Clearance
Checking the Compressor Manifold
Installing the Compressor
Removing and Installing the Condenser
Removing and Installing the Receiver-Drier
Removing and Installing the Evaporator and Expansion Valve
Replacing the Expansion Valve
Installing Condensation Water Drain Hoses
Removing and Installing the Thermostat Switch
Adjusting Thermostat Switch Bowden Cables
Removing and Installing the High/Low Pressure Switch
Heating system
Heating System (Summary of References)
Removal and Installation of Components
Seats
Seats (summary of references)
Specifications
Comfort seat MSG85
Air comfort seat MSG95, lower section
Exploded view of the passenger seat
Command Arm Repair
Operator's cab
Operator's cab (summary of references)
Removing Cab Frame
Cab mounting torques
Removing the Outer Roof
Removing and Installing the Windshield
Removing and Installing the Rear Window
Removing and Installing the Roof Hatch
Installing Door Lock
Adjusting Window Contact Pressure
Operator's Cab Door Removal and Installation
Roller Sun-Visor Removal and Installation
Removing Inner Roof Trim
Components of the electronic hitch control
References (parts of electron. lift shaft control)
Disconnecting Electrical Circuit
Service Information
Replacing control unit (BCU)
Replacing the operation unit
Special tools (dealer- fabricated)
Special tools (dealer- fabricated)
Suspension device
Adapter strut
Holding Device
Adapter
Suspension Eyes for Operator's Cab
Holding Device
DFRW79 - Piston Holding Tool
Socket Wrench Insert
Driver
DFRW29—Final Drive Housing Adapter
DFRW30
Bushing
Socket Wrench Insert
Special Wrench
Installation tool
Tube
Unlocking Device
Suspension device
Page Numbers
Size: 43.81 MB
Format: PDF
Language: English
Brand: John Deere
Type of Machine: Tractor
Type of Manual: Repair Technical Manual
Model: John Deere 6820 6920 6920S Tractor
Part Number: TM4756
Number of Pages: 1250 Pages
Contents:
Safety
Safety information
Recognize Safety Information
"Important" - Information
"Note" - Information
Prevent Machine Runaway
Handle Fluids Safely—Avoid Fires
Prevent Battery Explosions
Prepare for Emergencies
Prevent Acid Burns
Avoid High-Pressure Fluids
Service Cooling System Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Work In Ventilated Area
Wear Protective Clothing
Practice Safe Maintenance
Park Machine Safely
Use Proper Lifting Equipment
Construct Dealer-Made Tools Safely
Support Machine Properly
Work in Clean Area
Illuminate Work Area Safely
Service Machines Safely
Use Proper Tools
Service Tires Safely
Service Front-Wheel Drive Tractor Safely
Working on the Air Brake System
Avoid Eye Contact With Radar
Keep ROPS Installed Properly
Replace Safety Signs
Dispose of Waste Properly
Live With Safety
Safety Measures for Electronic Control Units
General information
Specifications
Technical data (summary of references)
Engine specifications
Cooling circuit
Injection pump (Bosch VP44)
Air Intake System
Electrical system
Hydrostatic Steering System
Clutch
AutoPowr/IVT transmission
PowrQuad Plus transmission
AutoQuad II transmission
Creeper transmission
Rear PTO
Front PTO
Differential assembly
Differential lock
Final drives
Front Wheel Drive
FWD Axle with TLS
Hydraulic Brakes
Handbrake
Parking Lock
Hydraulic System with Axial Piston Pump
Rockshaft
Front Hitch
Ground Speeds
Front and Rear Wheels
Dimensions and Weights
Capacity specifications
Handling and Storing Diesel Fuel
Diesel Fuel
Lubricity of Diesel Fuel
Diesel Engine Break-In Oil
Diesel Engine Oil
Transmission and Hydraulic Oil
Front Wheel Drive Axle Oil
Diesel Engine Coolant
Supplemental Coolant Additives
Grease
Oil Filters
Mixing of Lubricants
Lubricant Storage
Operating in Warm Temperature Climates
Alternative and Synthetic Lubricants
Unified Inch Bolt and Cap Screw Torque Values
Metric Bolt and Cap Screw Torque Values
Hydraulic system inch fitting torques
Hydraulic system metric fitting torques
Product identification and component serial numbers
Engine serial number
Transmission serial number
Front wheel drive axle serial number
Operator's cab serial number
Sub-assembly serial numbers
Tune-up
Tune-up (summary of references)
Repair specifications
Using High-Pressure Washers
Preliminary engine test
Tractor tune-up
Removing and Cleaning the Primary Air Cleaner Element
Checking the Air Cleaner Safety Element
Installing the Primary Filter Element
Checking the Air Intake System Connections for Leaks
Checking the Crankcase Vent Hose for Clogging
Cleaning the Radiator Grille Screen
Keeping the Radiator Screen Clean
Checking the Caps on the Expansion Tank
Checking the Radiator for Leaks
Checking the engine's thermostat
Checking the fuel transfer pump operation
Bleeding the Fuel System (Tractors Equipped with Bosch VP44 Injection Pump)
Checking the fuel filter (with Bosch VP44 injection pump)
Cleaning the water trap
Run the engine until it is warm, and check engine speeds
Check setting of fuel injection pump
Cleaning the Battery, Cables and Battery Box with a Clean Cloth
Checking the neutral start circuit
Checking operation of starter motor
Checking the lighting circuit
Final Engine Check
Tractor Operation Check
Inspection before delivery
Predelivery Inspection
Engine
Installing and removing components
Special tools
Repair specifications
Removing the engine
Installing the engine
Fuel, air intake, heating, exhaust system
Speed control
Speed control linkage (summary of references)
General Information
Specifications
Adjusting the Hand Throttle Lever and Accelerator Pedal
Adjusting the Speed Control Linkage
Hand Throttle Lever—Exploded View
Accelerator Pedal, with Mechanical Speed Control
Accelerator Pedal, With Electronic Speed Control ("Cruise Control")
Adjusting the accelerator pedal (6920S)
Changing the accelerator pedal potentiometer
Replacing the Accelerator Pedal Assembly (AutoPowr/IVT)
Removing the Accelerator Pedal's Potentiometer
Removing the Hand Throttle's Potentiometer
Fuel system
Summary of references (fuel system)
General Information
Removing the Fuel Tank
Installing the Fuel Tank
Replacing the fuel gauge sender
Replacing the fuel transfer pump
Changing the Fuel Filter
Bleeding Air from the Fuel System (with Bosch VP44 Injection Pump)
Installing Check Valve in Fuel System
Air intake system
General Information
Air filter - Exploded view
Replacing the Sending Unit for Air Cleaner Restriction (B02)
Heating system
Cooling system (summary of references)
General Information
Repair specifications
Removing the radiator
Changing the Fan or the Viscous Fan Drive
Removing and Installing the Expansion Tank
Removing and installing the thermostat valve
Installing the radiator
Relieving Tension on the Drive Belt
Replacing the Drive Belt
Replacing the Drive Belt Tensioner
Repairing the Fan Console
Cold-weather starting aid
Cold-weather starting aids (summary of references)
Fuel Preheater
Electrical Starting Aid
Coolant Heater
Exhaust system
Exhaust system (summary of references)
General Information
Repair specifications
Exhaust system to top right
Electrical equipment
Electrical connectors
Special or Essential Tools
General
Using high-pressure washers
Disconnecting electrical circuits
Stripping Wire Ends
Installing a terminal
WEATHER PACK Connectors
METRI PACK connector with terminal lock at the rear
METRI PACK connector with terminal lock at the front
METRI PACK connector
Connectors for electronic control units
Connector for injection pump
Connector at CAN bus terminating resistor
CRIMP SNAP IN connectors
Connectors
Blade Terminals
CPC Connectors
KOSTAL connectors
DEUTSCH Connectors
Changing terminals
Relay socket
Fuse and Relay Boxes
Wiring harnesses
Wiring harnesses — Repairing (summary of references)
Disconnecting electrical circuits
Ground Point Locations
Removing and Installing Harness W01 — Power Supply
Removing and Installing Harness W02 — 6-Cylinder Engine, Level 4
Removing and Installing Harness W03 — Starting Aid, Level 4
Removing and Installing Harness W04 — Headlights
Removing and Installing Harness W05 — Front Corner Worklights
Removing and Installing Harness W06 — Front-Wheel Drive Axle with TLS
Removing and Installing Harness W07 — Front PTO
Removing and Installing Harness W08 — Cab
Removing and Installing Harness W08 — Cab (AutoPowr/IVT Transmission)
Removing and Installing Harness W09 — Cowl
Removing and Installing Harness W09 — Cowl (AutoPowr/IVT Transmission)
Removing and Installing Harness W10 — Shift Console
Removing and Installing Harness W11 — Transmission Shift and Hand Throttle
Removing and Installing Harness W11 — Speed Control Lever and Hand Throttle (AutoPowr/IVT Transmission)
Removing and Installing Harness W12 — Command Arm (AutoPowr/IVT Transmission)
Removing and Installing Harness W13 — Clutch Sender
Removing and Installing Harness W14 — 3-Terminal Power Outlet Socket
Removing and Installing Harness W15 — Engine Control Unit (ECU) (Level 4)
Removing and Installing Harness W16 — E-SCV / E-ICV Controller (SIC)
Removing and Installing Harness W17 — Multifunction Unit
Removing and Installing Harness W18 — Windshield Wiper Switch (Without Intermittent Wipe)
Removing and Installing Harness W18 — Windshield Wiper Switch (With Intermittent Wipe)
Removing and Installing Harness W19 — Cab Roof
Removing and Installing Harness W20 — L.h. Turn Signal and Clearance Lights, with Light on L.h. Side of Cab Frame
Removing and Installing Harness W20 — R.h. Turn Signal and Clearance Lights, with Light on R.h. Side of Cab Frame
Removing and Installing Harness W20 — L.h. Turn Signal and Clearance Lights, with Worklight on L.h. Side of Cab Frame
Removing and Installing Harness W20 — R.h. Turn Signal and Clearance Lights, with Worklight on R.h. Side of Cab Frame
Removing and Installing Harness W21 — Worklights on Front of Cab Roof
Removing and Installing Harness W22 — Worklights on Rear of Cab Roof
Removing and Installing Harness W23 — Windshield Wiper Switch (Without Switch for Windshield)
Removing and Installing Harness W23 — Windshield Wiper (With Switch for Windshield)
Removing and Installing Harness W24 — Rear Window Wiper
Removing and Installing Harness W25 — Rear Window Wiper Switch
Removing and Installing Harness W26 — Fan and Air Conditioner
Removing and Installing Harness W28 — Front End of Transmission
Removing and Installing Harness W28 — Front End of Transmission (AutoPowr/IVT Transmission)
Removing and Installing Harness W29 — Valve Block (AutoPowr/IVT Transmission)
Removing and installing harness W30 — Rear end of transmission
Removing and installing harness W30 — Rear end of transmission with E-SCV / E-ICV
Removing and Installing Harness W31 — 7-Terminal Power Outlet Socket
Removing and Installing Harness W32 — Stepper Motors
Removing and Installing Harness W33 — Service
Charging current circuit
Specifications
Repairing the Alternator
Disconnecting Electrical Circuits
Relieving the Drive Belt
Remove/Install the Alternator
Starting current circuit
Special tools
Specifications
Repairing the Starting Motor
Disconnecting Electrical Circuits
Removing and installing the starter motor
Fuses, relays and connectors
Note
Special or Essential Tools
Repair specifications
Fuses, relays and switches — Repairing (summary of references)
Disconnecting electrical circuits
Fuse and Relay Boxes on Tractors with Operator's Cab
Fuse and Relay Boxes on Tractors with Operator's Cab and AutoPowr/IVT Transmission
Replacing the main fuses
Replacing the Fuses at the Electrical Starting Aid, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Injection Pump Fuse, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Starting Motor Relay, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Relay for the Electrical Starting Aid, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Injection Pump Relay, Tractors with Level 4 Engine Control Unit (ECU)
Replacing the Main Switch
Replacing the Brake Switches
Replacing the Light Switch
Replacing the Worklight Switches
Replacing the Switch for Lights on Cab Frame
Replacing the Beacon Light Switch
Replacing the Hazard Warning Light Switch
Replacing Switches on Multi-Function Unit
Replacing the Rear Window Wiper and Washer Switch
Replacing the Windshield/Rear Window Switches
Replacing the Dome Light Door Switch
Replacing the Handbrake Switch
Replacing the Front-Wheel Drive Switch
Replacing the Headland Management (HMS) Switch
Replacing the Record/Save Switch
Replacing the Program Switch
Replacing the Rear PTO Preselector Switch
Replacing the Switch for AutoQuad Transmission
Replacing the Gear Selector Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions
Replacing the Park Lock Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions
Replacing the Fan Switch
Replacing the Switch of the Air-Conditioning System Compressor
Replacing the Differential Lock Switch
Replacing the PTO Switch
Replacing the External Control Switch for the Rear PTO
Replacing the Rockshaft's Remote Control Switch
Replacing the Switch for the Electrical Rear-View Mirror
Replacing the Switch for the Heated Rear-View Mirror
Replacing the Switch for the Heated Rear Window
Replacing the Cruise Control Potentiometer on Tractors with AutoQuad Transmission
Replacing the Cruise Control Potentiometer on Tractors with AutoPowr/IVT Transmission
Rockshaft Control
Electrical Activators for Selective Control Valves (E-SCV)
Electrical Activators for Independent Control Valves (E-ICV)
Monitoring systems
Note
Note
Monitoring systems — Repairing (summary of references)
Disconnecting electrical circuits
Replacing the sender for the coolant temperature gauge (B08)
Replacing the Wheel Speed Sending Unit (B09)
Replacing the Sending Unit for Transmission Output Speed (B84) on Tractors with AutoPowr/IVT Transmission
Replacing the Acoustic Alarm
Replacing the Acoustic Alarm (Park Lock) on Tractors with AutoPowr/IVT Transmission
Electrical components
Note
Specifications
Electrical Components — Reconditioning (Summary of References)
Disconnecting electrical circuits
Replacing the 7-Terminal Power Outlet Socket
Replacing the 3-Terminal Power Outlet Socket
Replacing the Multiple Power-Outlet Socket Strip
Replacing the Service Socket
Removing the Wiper Motor
Adjusting the Headlights
Adjusting the Lights on the Cab Frame
Lights with Halogen Bulbs
Worklights with Xenon Bulbs
AutoPowr/IVT transmission
Removing and installing the AutoPowr/IVT transmission
Special tools
Dealer-fabricated special tools
Repair specifications
Removing the AutoPowr/IVT transmission
Installing the AutoPowr/IVT transmission
Transmission shifting mechanisms
AutoPowr/IVT Transmission Shift Units—Reconditioning (Summary of References)
Reconditioning the Speed Control Lever
Reconditioning the Reverser Control
Repairing the clutch actuation mechanism
Reconditioning the Manual Park Lock Release Mechanism
Releasing the Park Lock Manually
Input housing
Special tools
Repair specifications
AutoPowr/IVT transmission, input housing — Repairing (summary of references)
Installing and removing the vibration damper
Removing the clutch control block
Repairing the clutch control block
Installing the clutch control block
Removing and installing the transmission oil filter
Removing the system pressure control block
Repairing the system pressure control block
Installing the system pressure control block
Removing the transmission oil pump
Repairing the transmission oil pump
Installing the transmission oil pump
Removing and installing the front plate
Replacing the hydrostatic speed sender (B62)
Output housing
Special tools
Repair specifications
AutoPowr/IVT transmission, output housing — Repairing (summary of references)
Removing park lock control block
Repairing the park lock control block
Installing the park lock control block
Repairing the locking pawl of the park lock
Replacing the transmission speed sender (B63)
Replacing the transmission input speed sender (B61)
Replacing the transmission output sender (B84)
Assembling the intermediate shaft
Specifications
Repairing the intermediate shaft
PowrQuad, PowrQuad Plus and AutoQuad transmission
Installing and removing components
Special tools
Dealer-fabricated special tools
Repair specifications
PowrQuad Plus Transmission, Removal and Installation
AutoQuad Transmission, Removal and Installation
Removing the PowrQuad transmission
Installing the PowrQuad transmission
Removing the creeper transmission
Installing the Creeper Transmission
Removing the range transmission
Installing the range transmission
Transmission shifting mechanisms
Repair specifications
PowrQuad transmission shift controls — Repairing (summary of references)
Repairing the range shift linkage (PowrQuad Plus and AutoQuad transmissions)
Checking and adjusting the shift units (PowrQuad Plus and AutoQuad transmission)
Repairing the clutch actuation mechanism (PowrQuad Plus and AutoQuad transmissions)
PowrQuad module
Special tools
Repair specifications
PowrQuad, PowrQuad Plus and AutoQuad Transmissions—Summary of References
Transmission Components
Replacing the temperature sensor and pressure switches
Removing and Installing the Oil Filter Housing
Removing and Installing the Front Valve Housing
Removing and installing the valves in the front valve housing
Removing and installing the front transmission cover
Valves in front transmission cover, removing and installing
Removing and Installing the Shift Valve Housing
Removing and installing the valves in the shift valve housing
Removing the Transmission Oil Pump
Repairing the transmission oil pump
Installing the Transmission Oil Pump
Removing the Gear-Shift Planetary Drive
Repairing the gear-shift planetary drive
Installing the gear-shift planetary drive
Removing the B1 Brake Housing
Reconditioning the B1 Brake
Installing the B1 Brake Housing
Removing the B2-B3 Brake Housing
Reconditioning the B2 Brake
Reconditioning the B3 Brake
Installing the B2-B3 Brake Housing
Removing the C4 Clutch
Repairing the C4 clutch
Installing the C4 Clutch
Removing the reverse brake
Repairing the reverse brake
Installing the reverse brake
Removing the Forward Clutch with Planetary Drive (Forward/Reverse)
Repairing the forward clutch with planetary drive (forward/reverse)
Installing the Forward Clutch with Planetary Drive (Forward/Reverse)
Replacing the output shaft
Creeper transmission
Special tools
Repair specifications
Creeper transmission — Repairing (summary of references)
Removing the creeper transmission
Repairing the creeper transmission
Installing the creeper transmission
Range transmission
Special tools
Repair specifications
Range transmission — Repairing (summary of references)
Removing the range transmission
Range transmission — Sectional view
Repairing the range transmission
Installing the range transmission
Repairing the shift cover
Replacing the speed sender
Transmission (without gear)
Installing and removing components
Special tools
Dealer-fabricated special tools
Repair specifications
Removing the FWD clutch
Installing the FWD clutch
Removing the differential housing
Installing the differential housing
Removing the final drives
Installing the final drives
Removing the rear PTO
Installing the rear PTO
Removing the front PTO
Installing the Front PTO
U.J. Shaft and torsion damper
Summary of references (u.j. shafts and torsion damper)
Repair specifications
Removing the U.j. Shaft (FWD)
Reconditioning the U.j. Shaft (FWD)
Installing the U.j. Shaft (FWD)
Removing the U.j. Shaft (Engine)
Removing and Installing the Ring-Shaped Cooler
Removing the Torsion Damper
Changing the Torsion Damper Bearings
Installing the Torsion Damper
Installing the U.j. Shaft (Engine)
FWD clutch
FWD clutch — Repairing (summary of references)
Special tools
Other material
Repair specifications
Front-wheel drive clutch — Sectional view
FWD clutch — Exploded view
FWD clutch — Replacing speed sensor
FWD clutch — Replacing solenoid valve
Replacing the FWD clutch
Differential
Differential — Reconditioning (Summary of References)
Special tools
Specifications
Removing the differential
Disassembling the differential
Differential — Exploded view
Assembling the differential
Installing the differential
Hydraulic pump drive
Special tools
Repair specifications
Remove and Disassemble Pump Drive Pinion Gear
Removing and disassembling the pump drive gear
Assembling and installing pump drive gear
Assembling and installing the pump drive pinion
Checking and adjusting the backlash of the pump drive pinion
Final drives
Special tools
Other Material
Specifications
Repair Instructions
Removing the planetary carrier
Disassemble Planet Pinion Carrier
Assemble Planet Pinion Carrier
Remove Axle Housing
Disassemble and Assemble Axle Housing
Disassemble and Assemble Axle Shaft
Install Axle Housing
Installing the planetary carrier and checking rolling resistance torque
Rear PTO
Special tools
Specifications
Repair Instructions
Repair Rear PTO
Remove and Disassemble Countershaft
Assemble and Install Countershaft
Remove and Disassemble Output Shaft
Assemble and Install PTO Output Shaft
Remove PTO Shifter
Install PTO Shifter
Replacing Oil Seal on PTO Output Shaft
Remove Modulating Valve
Disassemble and Assemble Modulating Valve
Install Modulating Valve
Changing and adjusting the bowden cable
Steering and brakes
Hydrostatic steering
Hydrostatic steering (summary of references)
Special tools
Specifications
Preliminary Work
Removing steering column and steering valve
Disassembling the Steering Valve
Exploded View of Steering Valve
Assembling the Steering Valve
Adjusting the Shock Valves
Steering Wheel and Steering Column (With Cab)
Reconditioning the Steering Column
Installing steering column and steering valve
Brake valve
Brake Valve with Power-Fill
Power-Fill Brake Valve with MFWD and Disk Brake
Rear wheel brakes
Specifications
Preliminary Work
Removing the Rear Brakes
Rear Brakes—Exploded View
Repairing the Rear Brakes
Installing the Rear Brakes
Final Assembly
Bleeding the brakes (brake valve with Power-Fill brakes, MFWD and disk brake)
Handbrake
Handbrake (summary of references)
Specifications
Preliminary work
Removing the Handbrake
Exploded view of handbrake - Tractor 6820
Exploded view of handbrake - Tractors 6920 and 6920S
Installing the handbrake
Adjusting the Brake Band
Final assembly
Handbrake components
Replacing the handbrake cable
Adjusting the Handbrake
Hydraulic trailer brakes
Hydraulic trailer brake (summary of references)
Special or Essential Tools
Specifications
Repair Instructions
Changing the Trailer Brake Valve
Cleaning the Trailer Brake Valve
Cleaning the Screen
Replacing the Check Valve
Bleeding the Trailer Brake Valve
Checking the Trailer Brake Valve
Adjusting the Trailer Brake Valve
Air brake system
Air brake system (summary of references)
Special tools
Repair specifications
Safety instructions
Screw Union Installation
Changing the Compressor
Gaskets for the Compressor
Changing the compressed air tank
Changing the preload valve
Changing the pressure-relief valve
Changing the pressure-regulating valve
Changing the trailer control valve (dual-line + single-line brake)
Changing the trailer control valve (single-line brake)
Changing the Coupling Ends
Changing the Pressure Gauge
Test sequence
Checking the system for leaks
Checking the "Supply" Coupling End
Checking the Dual-Line Brakes
Checking the Single-Line Brakes
Adjusting the air brake system handbrake
Hydraulic system
Control elements
Specifications
Selective Control Valves — Removing and Installing the Actuating Elements
Selective Control Valves — Adjusting the Bowden Cable
Removing and Installing the Multifunction Lever
Adjusting the Multifunction Lever
Hydraulic pump and charge oil pump
Other Material
Specifications
Removing and installing the charge pump
Reconditioning the Charge Pump
Charge Pump - Checking the Lube Oil Valve
Hydraulic Oil Reservoir — Restrictor
Hydraulic Pump — Removing and Installing the Pressure-and-Flow Controller
Hydraulic Pump — Reconditioning the Pressure-and-Flow Controller
Removing and Installing the Hydraulic Pump
Reconditioning the Hydraulic Pump
Valves
Special or Essential Tools
Special Tools (Dealer Fabricated)
Specifications
Hydraulic System — General Instructions on Safety and Repair
Direct Control of Rockshaft
Removing the Rockshaft Valve
Reconditioning the Rockshaft Valve
Rockshaft Valve — Depth to Which Raising and Lowering Valves are Screwed In
Rockshaft Valve — Removing and Installing the Stepper Motor
Rockshaft Valve — Centering the Stepper Motor
Installing the hitch valve
Removing the main block
Reconditioning the Main Block
Installing the main block
Reconditioning the Hydraulic Oil Filter
Rockshaft
Other Material
Repair specifications
Rockshaft — Removing and Installing the Electronic Control Unit
Hitch — Removing and installing the position sensor and toothed segment
Hitch — Removing and installing the lift shaft
Hitch — Removing the lift shaft cylinders
Hitch — Repairing the lift cylinder
Hitch — Installing the lift cylinders
Hitch — Removing and installing the draft load potentiometer and draft link support
Additional control units and reception couplings
Special Tools (Dealer Fabricated)
Other Material
Repair specifications
Repairing the selective control valves and couplers — Summary of references
Reconditioning the Selective Control Valves and Couplers — General Instructions on Safety and Reconditioning
SCV identification
Installing the shuttle valves
Removing the Selective Control Valves
Series 100 selective control valves — Repairing
Series 200/300 selective control valves (mechanically actuated) — Replacing the control knobs
Series 200/300 selective control valves (mechanically actuated) — Inspecting the check valves
Series 200/300 selective control valves (mechanically actuated) — Inspecting the inlet check valve and metering valve
Series 200 selective control valves — Repairing
Series 300 selective control valves (mechan actuated) — Inspecting the pressure compensator valve
Series 300 selective control valves (mechan actuated) — Repairing
Series 300 Selective Control Valves (Electrically Actuated) — Inspecting the Check Valves
Series 300 Selective Control Valves (Electrically Actuated) — Inspecting the Inlet Check Valve
Series 300 Selective Control Valves (Electrically Actuated) — Inspecting the Pressure Compensator Valve
Series 300 Selective Control Valves (Electrically Actuated) — Reconditioning
Installing the Selective Control Valves
Selective Control Valves — Installing the Endplate
Selective Control Valves — Reconditioning the Couplers
Indepent additional control unit
Other Material
Specifications
Removing the Independent Control Valve (ICV)
Reconditioning the Independent Control Valve
Independent Control Valve — Reconditioning the Inlet Plate
Assembling the Independent Control Valve
Installing the Independent Control Valve
Miscellaneous
Installing and removing components
Special tools
Dealer-Fabricated Special Tools
Repair specifications
Removing and installing the main frame (summary of references)
Removing the main frame
Installing the main frame
Removing and installing the front axle or front-wheel drive axle (summary of references)
Removing the front wheel drive axle
Installing the front-wheel drive axle
Removing the FWD axle with TLS
Installing the front-wheel drive axle with TLS
Removing and installing the front axle support (summary of references)
Removing the front axle support
Installing the front axle support
Main frame
Repair specifications
Repairing the main frame
Front and rear wheels
Special tools
Repair specifications
Removing the front and rear wheels
Installing the front and rear wheels
Trailer support and counterweight pendant
Trailer mounting and swinging drawbar — Repairing (summary of references)
Repair specifications
Installing trailer mounting for center link
Installing guide rails
Repairing the Automatic Trailer Hitch (One-Lever Operation)
Repairing the Automatic Trailer Hitch (Two-Lever Operation)
Remote control for automatic trailer hitch
Reconditioning the height-adjustable trailer hitch (Italy and Spain only)
Swinging drawbar - Exploded view
Swinging drawbar (with pick-up hitch)
Axle suspension of TLS front wheel drive axle
Triple Link Suspension (TLS) of FWD Axle—Summary of References
Special or Essential Tools
Other material
Repair specifications
Relieving Pressure in the Hydraulic System
Removing/Installing the oscillation limiter
Removing the Panhard link
Installing the Panhard link
Removing and installing the sensor rod
Removing the position sensor
Reconditioning the Position Sensor
Installing the position sensor
Removing hydraulic cylinder
Repairing the hydraulic cylinder
Installing the hydraulic cylinder
Removing the control valve block
Reconditioning the Valves in the Control Valve Block
Installing the Control Valve Block
Removing the Accumulator
Reconditioning the Accumulator
Installing the Accumulator
Removing and repairing the bearing support
Installing the bearing support
Hydraulic wagon hitch
Pick-up hitch—Summary of references
Repair specifications
Other material
Hydr. pick-up hitch—General safety and repair information
Removing and installing pick-up hitch
Control lever and lift links — Exploded view
Frame assembly — Exploded view
Hydraulic Parts
Repairing the retainer spring
Repairing the latch housing
Repairing the hydraulic cylinder
Adjusting the lift links
Adjusting the locking pin
Adjusting the guide stop
Hydr. pick-up hitch—Operational check
Operator's cab
Installing and removing components
Special or Essential Tools
Dealer-Manufactured Special Tools
Repair specifications
Tilting operator's cab and removal and installation
Tilting the operator's cab upward
Tilting the operator's cab downward
Removing the operator's cab
Installing the operator's cab
Checking and adjusting shift units
Controls and instruments
Controls and instruments (summary of references)
Replacing Bulbs on the Instrument Unit
Removing Control Unit
Removing Control Unit for the Lighting System
Replacing control unit (BCU)
Replacing the control unit (SFA)
Replacing control unit (SIC)
Replace Control Unit (ECU)
Replacing control unit (UIC/PLC)
Replacing terminating bus resistors
Replacing the Performance Monitor (PRF)
Replacing Instrument Unit (BIF)
Air-conditioning system
Air-conditioning system (summary of references)
Special Tools
Specifications
Torques for Tightening Refrigerant Hoses
Safety At Work
Handling Refrigerant
In an Emergency
Safety Equipment
Storage of Refrigerant Containers
R134A Refrigerant
Important Note
Discharging the system
Evacuating the system
Filling with refrigerant oil
Instructions for Starting Up the DENSO Air-Conditioning Compressor
Filling the system
Topping up a partly discharged system
Leak test
Removing the Compressor
Checking Level in the Compressor
Disassembling the Compressor Clutch
Checking Clutch Hub Clearance
Checking the Compressor Manifold
Installing the Compressor
Removing and Installing the Condenser
Removing and Installing the Receiver-Drier
Removing and Installing the Evaporator and Expansion Valve
Replacing the Expansion Valve
Installing Condensation Water Drain Hoses
Removing and Installing the Thermostat Switch
Adjusting Thermostat Switch Bowden Cables
Removing and Installing the High/Low Pressure Switch
Heating system
Heating System (Summary of References)
Removal and Installation of Components
Seats
Seats (summary of references)
Specifications
Comfort seat MSG85
Air comfort seat MSG95, lower section
Exploded view of the passenger seat
Command Arm Repair
Operator's cab
Operator's cab (summary of references)
Removing Cab Frame
Cab mounting torques
Removing the Outer Roof
Removing and Installing the Windshield
Removing and Installing the Rear Window
Removing and Installing the Roof Hatch
Installing Door Lock
Adjusting Window Contact Pressure
Operator's Cab Door Removal and Installation
Roller Sun-Visor Removal and Installation
Removing Inner Roof Trim
Components of the electronic hitch control
References (parts of electron. lift shaft control)
Disconnecting Electrical Circuit
Service Information
Replacing control unit (BCU)
Replacing the operation unit
Special tools (dealer- fabricated)
Special tools (dealer- fabricated)
Suspension device
Adapter strut
Holding Device
Adapter
Suspension Eyes for Operator's Cab
Holding Device
DFRW79 - Piston Holding Tool
Socket Wrench Insert
Driver
DFRW29—Final Drive Housing Adapter
DFRW30
Bushing
Socket Wrench Insert
Special Wrench
Installation tool
Tube
Unlocking Device
Suspension device
Page Numbers
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