Complete Repair Service Technical Manual for John Deere 7720, 7820, 7920 Tractors, with all the workshop information to maintain, repair, and service like professional mechanics.

John Deere 2WD or MFWD Tractors 7720, 7820, 7920 workshop technical manual (repair) includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

tm2080 - 7720 7820 7920 Tractors Technical Manual.pdf
tm2080 - 7720 7820 7920 Tractors Technical Manual.epub

Total Pages: 1,710 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
 Foreword
   Notice to Dealers
   Dealer Predelivery Information Form
   General Information
      Safety
      General Information
      General Specifications
   Engine
      Component Removal and Installation
      Engine Repair
   Fuel / Air Intake and Cooling Systems
      Controls
      Diesel Fuel System
      Air Intake System
      Engine Cooling System
      Standard Cooler and Air Conditioning Condenser
      Deluxe Cooler and Air Conditioning Condenser
      Exhaust System
   Electrical
      Connectors
      Wiring Harness Routings
      Charging Circuit
      Starting Circuit
      Solenoids and Switches
      Monitoring System
      Armrest Control
      Auxiliary Lighting and Electrical Components
      Convenience and Accessory Components
   PowrQuad-Plus Transmission
      Component Removal and Installation
      Transmission Shifting Mechanisms
      PowrQuad-Plus Module
      Range Box
   AutoPowr/IVT Transmission
      Component Removal
      Controls
      Front Pump/Control Valve Assembly
      Transmission Front Housing
      Hydrostatic Module
      Shift Valve Assembly
      Transmission Rear Housing
      Differential Input Assembly
   MFWD Drive Systems
      Component Removal And Installation
      Controls
      MFWD Clutch
      MFWD Axle
      Suspended MFWD Axle Components
   Drive Systems
      Component Removal And Installation
      Rear Differential
      Final Drive
      Rear PTO
      Front PTO Repairs
      Primary Brakes
   Steering and Brakes
      Steering Column
      Hydrostatic Steering
      Service Brakes
      Trailer Brakes
   Hydraulics
      Component Removal and Installation
      Hydraulic System Repair
      Hydraulic Pump And Charge Pump
      Hydraulic System Valves
      Selective Control Valves and Couplers
      Rear 3-Point Hitch
      Front 3-Point Hitch
      Bleed Hydraulic System
   Miscellaneous
      Hood
      Front Axle (Two-Wheel Drive)
      Steering Cylinders (Two-Wheel Drive)
      Rear Wheels
      Wagon And Pick-Up Hitch
   Operator Station
      Component Removal and Installation
      Heating, Ventilating, and Air Conditioning (HVAC)
      Air Conditioning System
      Air Suspension Seat
      ACTIVE SEAT™
      Armrest
      Cab Door and Windshield
   Dealer Fabricated Tools
      DFRW

tm2080 - 7720 7820 7920 Tractors

Table of Contents

Foreword

Notice to Dealers

Dealer Predelivery Information Form

Section 10: General Information

Group 05: Safety

Recognize Safety Information

Handle Fuel Safely—Avoid Fires

Prevent Battery Explosions

Prepare for Emergencies

Prevent Acid Burns

Handle Chemical Products Safely

Avoid High-Pressure Fluids

Park Machine Safely

Support Machine Properly

Wear Protective Clothing

Work in Clean Area

Service Machines Safely

Work In Ventilated Area

Illuminate Work Area Safely

Replace Safety Signs

Use Proper Lifting Equipment

Service Tires Safely

Avoid Harmful Asbestos Dust

Avoid Heating Near Pressurized Fluid Lines

Remove Paint Before Welding or Heating

Use Proper Tools

Construct Dealer-Made Tools Safely

Dispose of Waste Properly

Live With Safety

Service Accumulator Systems Safely

Wait Before Opening High-Pressure Fuel System

Group 10: General Information

Sealants and Adhesives Cross-Reference Chart

Identify Zinc-Flake Coated Fasteners

Unified Inch Bolt and Screw Torque Values

Metric Bolt and Screw Torque Values

Glossary of Terms

Group 15: General Specifications

Specifications (North America, Latin America, South Africa, and Asia)

Specifications (Europe)

Section 20: Engine

Group 00: Component Removal and Installation

Essential or Recommended Tools

Other Material

Specifications

Remove and Install 6.8L—Engine

Remove and Install 8.1L—Engine

Group 05: Engine Repair

Specifications

Repair Engine—Use CTM

Access to Front Crankshaft Seal

Access to Rear Crankshaft Seal

Access to Camshaft

Access to Timing Gear Cover

Access to Engine Oil Pan

Repair 6.8L Engine Accessory Drive Assembly

Remove and Install 6.8L Engine Valve Cover

Remove and Install 8.1L Engine Valve Cover

Section 30: Fuel / Air Intake and Cooling Systems

Group 05: Controls

Repair Engine—Use CTM

Group 10: Diesel Fuel System

Specifications

Remove and Install Fuel Tanks

Replace Fuel Filter, Fuel Pump, and Bleed Fuel System

Group 15: Air Intake System

Specifications

Inspect and Service Air Intake System

Group 20: Engine Cooling System

Essential or Recommended Tools

Specifications

Test Radiator and Coolant Tank Cap

Remove and Install Radiator/Aftercooler

Inspect Belt Tensioner

Remove and Install Viscous Fan Drive

Remove and Install Vistronic Fan Drive

Fan Belt Routing—7720 to 7920

Group 25: Standard Cooler and Air Conditioning Condenser

Essential or Recommended Tools

Specifications

Remove Fuel-Hydraulic Oil Cooler/Condenser

Leak Test Fuel-Hydraulic Oil Cooler

Install Fuel-Hydraulic Oil Cooler/Condenser

Group 30: Deluxe Cooler and Air Conditioning Condenser

Essential or Recommended Tools

Specifications

Other Material

Remove Air Conditioning Condenser/Fuel Cooler

Install Air Conditioning Condenser/Fuel Cooler

Replace Hydraulic Oil Cooler

Leak Test Hydraulic Oil Cooler

Group 35: Exhaust System

Specifications

Remove and Install Exhaust System

Section 40: Electrical

Group 05: Connectors

Essential or Recommended Tools

Other Material

Use Electrical Insulating Compound

Using High-Pressure Washers

Repair AMP Injection Pump Connector

Remove Connector Body from Blade Terminals

Repair CINCH Connectors

Repair 32 and 48 Way CINCH Connectors

Repair CPC Blade Type Connectors

Repair CPC, Large MATE-N-LOC MATE-N-LOC is a trademark of AMP Incorporated and METRIMATE METRIMATE is a trademark of AMP Incorporated Pin Type Connectors

Repair DEUTSCH Connectors

Repair ITT Connector

Repair Small MATE-N-LOC Socket Connector

Repair Small MATE-N-LOC Pin Connector

Repair (Pull Type) METRI-PACK METRI-PACK is a trademark of Delphi Packard Electric Systems Connectors

Repair (Push Type) METRI-PACK Connectors

Repair Molex Connector

Repair SUMITOMO™ Connectors

Repair Weather Pack Weather Pack is a trademark of Packard Electric Connector

Repair YAZAKI™ Connectors

Group 10: Wiring Harness Routings

Ground Point Locations

Cab Harness Routing—(POWRQUAD-PLUS or AUTOQUAD-PLUS)

Cab Harness Routing—(AUTOPOWR/IVT)

Main Armrest Control Unit (ACU) Harness Routing

Armrest Control Unit (ACU) Harness Routing

Outer Cab Roof Harness Routing

Loader Light Harness

Hood Light Harness (North American)

Hood Light Harness (European)

Hood Light Harness (HID)

ActiveSeat ActiveSeat is a trademark of Deere & Company Harness Routing—(POWRQUAD-PLUS or AUTOQUAD-PLUS)

ActiveSeat ActiveSeat is a trademark of Deere & Company Harness Routing Harness Routing—(AUTOPOWR/IVT)

Heated Seat Harness

Loader Joystick Harness Routing—(Cab)

Front PTO Harness Routing—(Cab)

Manual A/C Harness Routing

ClimaTrak ClimaTrak is a trademark of Deere & Company Harness Routing

Right-Hand Console Harness Routing—(North American)

Right-Hand Console Harness Routing—(European)

Engine/Chassis Harness Routing and Component Identification (6.8L)—POWRQUAD-PLUS or AUTOQUAD-PLUS

Engine/Chassis Harness Routing and Component Identification (8.1L)—POWRQUAD-PLUS or AUTOQUAD-PLUS

Engine/Chassis Harness Routing and Component Identification (6.8 L)— AutoPowr is a trademark of Deere & Company /IVT

Engine/Chassis Harness Routing and Component Identification (8.1 L) AutoPowr is a trademark of Deere & Company /IVT

Harness Routing—Front PTO

Harness Routing—Suspended MFWD Axle and Front Brakes

Harness Routing—SCV 5 & 6, Grapple, Loader, and Front Hitch

Harness Routing—Tractor Equipment Control Unit (TECU)

Transmission Harness Routing and Component Identification—POWRQUAD-PLUS or AUTOQUAD-PLUS

Transmission Harness Routing and Component Identification— AutoPowr is a trademark of Deere & Company /IVT

Wire Number and Color Codes

Load Center Panel—(North American)

Load Center Panel—(European)

Relay Panel—(Lights, Wipers, and A/C)

Replace Load Center Fuses and Relays

Group 15: Charging Circuit

Repair Alternator—Use CTM

Exploded View—Alternator

Remove and Install Alternator

Group 20: Starting Circuit

Essential or Recommended Tools

Specifications

Repair Starter—Use CTM

Remove and Install Starter Motor

Replace Starter Circuit Relay

Replace Fusible Link

Group 25: Solenoids and Switches

Specifications

Replace Ether Starting Aid Solenoid and Switch

Replace Brake Switch—Non-AUTOPOWR/IVT

Replace Brake Switch

Replace MFWD Switch

Replace MFWD Solenoid

Replace Differential Lock Switch

Replace Rear PTO Shaft Select Switch

Replace Differential Lock and Rear PTO Solenoids

Replace Hitch Raise and Lower Solenoids

Replace Hitch Position Potentiometer Assembly

Replace Clutch Pedal Position Sensor

Remove Electrical Switches, Sensors and Solenoids—POWRQUAD-PLUS or AUTOQUAD-PLUS Transmissions

Electrical Controls and Switches—AutoPowr™/IVT™ Transmission

Replace AutoPowr™/IVT™ Hydro Control Solenoid

Replace AutoPowr™/IVT™ Fixed Unit Speed Sensor

Replace AutoPowr™/IVT™ Carrier Speed Sensor

Replace AUTOPOWR/IVT Hand Throttle/Speed Selector Assembly

Replace AUTOPOWR/IVT Set-Speed Switch

Replace SCV Control Lever

Group 30: Monitoring System

Essential or Recommended Tools

Other Material

Replace Engine Oil Pressure Sensor

Replace Engine Crank Speed Sensor

Replace Engine Coolant Temperature Sensor

Replace Air Filter Restriction Indicator Sensor

Replace Fuel Level Sensor

Replace Hydraulic Oil Filter Restriction Sensor

Remove and Install Draft Link Sensor

Adjust Draft Link Sensor

Replace Rear PTO Speed Sensor

Replace Radar Speed Sensor

Replace MFWD Speed Sensor—AutoPowr™/IVT™

Replace AutoPowr™/IVT™ Primary Wheel Speed Sensor

Replace AutoPowr™/IVT™ Backup Wheel Speed Sensor

Replace AutoPowr™/IVT™ Transmission Oil Temperature Sensor

Replace AutoPowr™/IVT™ Transmission Pressure Sensor

Replacing Front Console Display Light Bulbs

Replacing Corner Post Display Light Bulbs

Replacing CommandCenter Display Light Bulbs

Replacing SCV TOUCHSET TOUCHSET is a trademark of Deere & Company Control Display Light Bulbs

Group 35: Armrest Control

List of References

Armrest Test Procedures

Replace Armrest Control Assembly

Replace Armrest Control Unit (ACU)

Replace Engine Speed Control

Replace Transmission Control (IVT)

Replace SCV Control Lever

Replace Hitch Control

Replace Rear PTO Switch

Replace IMS Switch

Replace Resume Switch

Group 40: Auxiliary Lighting and Electrical Components

Replace Seven-Terminal Outlet Socket—North American

Replace Seven-Terminal Outlet Socket—European

Group 45: Convenience and Accessory Components

Essential or Recommended Tools

Replace Circulation Blower Motor

Replace Heating, Ventilating, and Air Conditioning (HVAC) Pressurizer Blower Motor

Replace Wiper Motor

Test Ground-Fault Circuit Interrupter

Replace Hydraulic Charge Pump Heater

Section 50: PowrQuad-Plus Transmission

Group 00: Component Removal and Installation

Essential or Recommended Tools

Other Material

Specifications

Sealing Instructions—Drive Train

Remove Drive Train

Install Drive Train

Remove Transmission

Install Transmission

Remove Range Box

Install Range Box

Group 05: Transmission Shifting Mechanisms

Specifications

Repair Range Shift Linkage (PowrQuad-Plus PowrQuad-Plus is a trademark of Deere & Company Transmissions)

Remove and Install Shift Cables

Check And Adjust Shift Cables (PowrQuad-Plus PowrQuad-Plus is a trademark of Deere & Company Transmissions)

Group 10: PowrQuad-Plus Module

Essential or Recommended Tools

Specifications

Replace Temperature Sensor And Pressure Switches

Remove And Install Valves In Front Transmission Cover

Repair Shift Valve Housing

Remove And Install Front Transmission Cover

Remove Hydraulic Pump Drive

Repair Hydraulic Pump Drive

Install Hydraulic Pump Drive

Remove And Install Front Valve Housing

Remove Transmission Oil Pump

Exploded View—Transmission Oil Pump

Repair Transmission Oil Pump

Install Transmission Oil Pump

Remove Gear-Shift Planetary Drive

Exploded View—Planetary Drive

Repair Gear-Shift Planetary Drive

Install Gear-Shift Planetary Drive

Remove B1 Brake Housing

Recondition B1 Brake

Install B1 Brake Housing

Remove B2-B3 Brake Housing

Recondition B2 Brake

Recondition B3 Brake

Install B2-B3 Brake Housing

Remove C4 Clutch

Cross Sectional View—C4 Clutch

Exploded View—C4 Clutch

Repair C4 clutch

Install C4 Clutch

Remove Reverse Brake

Exploded View—Reverse Brake

Repair Reverse Brake

Install Reverse Brake

Remove Forward Clutch With Planetary Drive (Forward/Reverse)

Cross Sectional View—Forward Clutch with Planetary Drive

Exploded View—Forward Clutch with Planetary Drive

Repair Forward Clutch With Planetary Drive (Forward/Reverse)

Install Forward Clutch With Planetary Drive (Forward/Reverse)

Exploded View—Output Shaft

Replace Output Shaft

Group 20: Range Box

Essential or Recommended Tools

Specifications

Cross Sectional View—Range Box

Cross Sectional View—Shifter Assembly

Exploded View—Drive Shaft 40 km/h (25 mph)

Exploded View—Drive Shaft 50 km/h (31 mph)

Exploded View—Differential Drive Shaft 40 km/h (28 mph) and 50 km/h (31 mph)

Repair Range Box

Repair Shift Cover

Replace Speed Sensor

Section 51: AutoPowr/IVT Transmission

Group 00: Component Removal

Essential or Recommended Tools

Specifications

Remove and Install Transmission

Group 05: Controls

Essential or Recommended Tools

Specifications

Brake Pedal Switch Adjustment

Using Hydraulic Hand Pump to Release Park Brake

Adjust Service Disconnect

Group 10: Front Pump/Control Valve Assembly

Essential or Recommended Tools

Specifications

Remove, Repair, and Install Hydraulic Pump Drive

General Repair Procedures—Front Control Valve/Transmission Control Pump Assembly

Remove and Install Front Control Valve Assembly

Exploded View—Front Control Valve Assembly

Repair Front Control Valve Assembly

Group 15: Transmission Front Housing

Essential or Recommended Tools

Specifications

Other Material

General Repair Procedures—Transmission

Hydrostatic Module Replacement

Repair Sequence for Hydrostatic Module Service ONLY

Remove Hydrostatic Module

Install Hydrostatic Module

Group 20: Hydrostatic Module

Essential Tools

Specifications

Exploded View—Hydrostatic Gear Train

Disassemble Hydrostatic Module Gear Train

Repair Hydrostatic Module Gear Train

Assemble Hydrostatic Module Gear Train

Replace Hydrostatic Module

Test Multi-Function Valves

Repair Hydrostatic Module

Group 25: Shift Valve Assembly

Essential or Recommended Tools

Specifications

General Repair Procedures—Shift Control Valve Assembly

Remove and Install Shift Valve Housing

Exploded View—Shift Valve Housing

Repair Shift Valve Assembly

Service Hi-Lo-Reverse Shift Valves

Air Leak Check Procedure

Group 30: Transmission Rear Housing

Essential Tools

Specifications

Transmission Rear Housing

Cross-Sectional View—Park Brake Assembly

Repair Park Brake

Remove And Install Clutch/Planetary Assembly

Shift Accumulator

Cross Sectional View—Clutch Assembly

Cross Sectional View—Clutch/Planetary Assembly

Exploded View—Planetary Assembly

Repair Clutch/Planetary Assembly

Repair Reverse Brake

Replace Clutch/Planetary Carrier Bearing Cups

Group 35: Differential Input Assembly

Essential or Recommended Tools

Specifications

General Repair Procedures—Differential Input Assembly

Cross-Sectional View—Differential Input Assembly

Disassemble Differential Input Assembly

Determine Cone Point Shim Pack and Install Differential Drive Shaft

Assemble Differential Input Assembly

Section 56: MFWD Drive Systems

Group 00: Component Removal And Installation

Essential or Recommended Tools

Other Material

Specifications

Sealing Instructions

Remove MFWD Clutch

Install MFWD Clutch

Remove Non-Suspended MFWD Axle

Install Non-Suspended MFWD Axle

Remove Suspended MFWD Axle

Install Suspended Axle

Group 05: Controls

Specifications

PTO Shift Lever

Group 10: MFWD Clutch

Specifications

General Repair Procedures—MFWD Clutch

Cross-Sectional View—MFWD Clutch Without Secondary Brake (POWRQUAD-PLUS™ or AUTOQUAD-PLUS™)

Cross-Sectional View—MFWD Clutch With Secondary Brake (POWRQUAD-PLUS™ or AUTOQUAD-PLUS™)`

Cross-Sectional View—MFWD Clutch Without Secondary Brake (AutoPowr/IVT)

Cross-Sectional View—MFWD Clutch With Secondary Brake (AutoPowr/IVT)

Disassemble MFWD Clutch

Disassemble MFWD Clutch Pack

Assemble MFWD Clutch Pack

Assemble MFWD Clutch

Group 15: MFWD Axle

Essential or Recommended Tools

Other Material

Specifications

Cross-Sectional View—Planetary Carrier and Wheel Hub Without Brake

Cross-Sectional View—Planetary Carrier and Wheel Hub With Brake

Remove, Recondition, And Install Planetary Carrier And Wheel Hub Without Brake

Remove, Recondition, And Install Planetary Carrier And Wheel Hub With Brake

Cross-Sectional View—Knuckle Spindle Assembly (Standard Duty)

Cross-Sectional View—Knuckle Spindle Assembly (Heavy Duty)

Disassemble, Inspect, and Assemble Knuckle Spindle Assembly

Install Non-Suspended MFWD Axle Into Repair Stand

Install Suspended MFWD Axle Into Repair Stand

Remove And Install Planetary Carrier-Wheel Hub-Knuckle Spindle—U-Joint/Axle Shaft Assembly

Determine Kingpin Shim Pack

Remove Differential Housing

Cross-Sectional View—Differential Housing—Standard Limited Slip Differential

Cross-Sectional View—Differential Housing—Heavy Duty Limited Slip Differential/Suspended Axle

Cross-Sectional View—Differential Housing—Heavy Duty Limited Slip Differential

Cross-Sectional View—Differential Housing—Heavy Duty Limited Slip Differential/Suspended Axle

Cross-Sectional View—Differential Housing—Heavy Duty With Hydraulic Differential Lock

Repair Differential Housing—Limited Slip Differential

Assemble Differential—Limited Slip Differential

Repair Differential Housing—With Hydraulic Differential Lock

Assemble Differential—With Hydraulic Differential Lock

Cross-Sectional View—Differential Drive Shaft and Input Quill—Non-Suspended MFWD Axle

Cross-Sectional View—Differential Drive Shaft And Input Quill—Suspended MFWD Axle

Remove And Disassemble Differential Drive Shaft

Determine Differential Drive Shaft Cone Point Shim Pack

Assemble And Install Differential Drive Shaft

Check Ring Gear Backlash And Determine Differential Case Bearing Cup Shim Pack—Limited Slip

Check Ring Gear Backlash And Determine Differential Case Bearing Cup Shim Pack—Locking

Adjust Ring Gear Backlash

Backlash Shim Pack Example and Worksheet

Install Differential Case Bearing Cup and Differential Housing

Disassemble And Assemble Axle Housing—Standard Duty

Disassemble Axle Housing—Heavy Duty

Determine And Install Axle Housing Bearing Cup Shim Pack—Standard Duty

Preload Shim Pack Example And Worksheet

Determine And Install Axle Housing Bearing Cup Shim Pack—Heavy Duty

Preload Shim Pack Example And Worksheet

Install Axle Housing

Cross-Sectional View—Steering Cylinder Housing Assembly—Non-Suspended MFWD Axle

Cross-Sectional View—Steering Cylinder Housing Assembly—Suspended MFWD Axle

Remove And Disassemble Steering Cylinder

Cross-Sectional View—Steering Cylinder

Assemble And Install Steering Cylinder

Replace MFWD Pivot Bushing

Group 16: Suspended MFWD Axle Components

Essential or Recommended Tools

Exploded View—Suspended Axle Control Valve

Relieve Pressure From Suspended MFWD Axle Hydraulic System

Replace Suspended MFWD Axle Position Sensor

Recondition Suspended MFWD Axle Pressure Control, Pressure Relief, And Solenoid Valves

Cross-Sectional View—Suspended MFWD Axle Cylinder Piston Seals

Check and Charge Accumulators

Section 57: Drive Systems

Group 00: Component Removal And Installation

Essential or Recommended Tools

Other Material

Specifications

Sealing Instructions

Remove Front PTO Assembly

Install Front PTO Assembly

Remove Final Drive

Install Final Drive

Remove Rear PTO Assembly

Install Rear PTO Assembly

Group 10: Rear Differential

Essential Or Recommended Tools

Specifications

General Repair Procedures—Rear Differential

Remove Differential

Cross-Sectional View—Differential

Disassemble Differential

Assemble Differential

Adjust Differential Preload

Adjust Differential Backlash

Group 20: Final Drive

Essential Or Recommended Tools

Other Material

Specifications

General Repair Procedures—Final Drive

Remove Planet Pinion Carrier

Cross-Sectional View—Planet Pinion Carrier

Disassemble Planet Pinion Carrier

Exploded View—Planet Pinion Carrier

Assemble Planet Pinion Carrier

Cross-Sectional View—92 mm Rear Axle Housing And Shaft

Cross-Sectional View—100 mm Rear Axle Housing And Shaft

Remove Axle Housing

Disassemble And Assemble Axle Housing

Disassemble And Assemble Axle Shaft

Install Axle Housing

Install Planet Pinion Carrier And Check Rolling Drag Torque (Non-Shimmed Axles)

Install Planet Pinion Carrier And Check Rolling Drag Torque (Shimmed Axles)

Group 30: Rear PTO

Essential or Recommended Tools

Other Material

Specifications

General Repair Procedures—PTO

Cross-Sectional View—PTO Clutch

Remove And Disassemble PTO Clutch

Assemble And Install PTO Clutch

Remove And Disassemble Output Shaft and PTO Shifter

Remove And Disassemble Countershaft

Cross-Sectional View—Two-Speed Shiftable PTO Countershaft

Cross-Sectional View—Three-Speed Shiftable PTO Countershaft

Assemble And Install Countershaft

Cross-Sectional View—Single-Speed PTO Output Shaft

Cross-Sectional View—Two-Speed Shiftable PTO Output Shaft

Cross-Sectional View—Three-Speed Shiftable PTO Output Shaft

Assemble And Install PTO Output Shaft and PTO Shifter

Exploded View—Shiftable PTO Shifter

Install Shifter

Replace PTO Output Shaft Oil Seal

Remove 540/1000 PTO Adapter Assembly

Disassemble and Assemble 540/1000 PTO Adapter Assembly

Install 540/1000 PTO Adapter Assembly

Group 35: Front PTO Repairs

Essential or Recommended Tools

Other Material

Specifications

General Repair Procedures—PTO

Exploded View—Front PTO Driveline

Repair Front PTO Driveline

Remove and Install Front PTO Oil Filter and Cooler

Remove and Install Front PTO Pump

Remove Front PTO Clutch Housing

Disassemble Front PTO Clutch Housing

Assemble Front PTO Clutch Housing

Replace Front PTO Brake

Remove Front PTO Output Shaft

Install Front PTO Output Shaft

Remove and Install Modulating Valve

Repair Pressure Regulating Valve

Repair Oil Cooler Bypass and Lube Relief Valves

Disassemble Front PTO Gearcase Housing

Group 40: Primary Brakes

Essential or Recommended Tools

Remove and Install Brake Plates, Disks, and Pistons

Section 60: Steering and Brakes

Group 05: Steering Column

Remove Cowl and Plenum

Repair Steering Column (Standard and AutoTrac)

Replace Clutch Pedal Return Spring

Group 10: Hydrostatic Steering

Specifications

Remove and Install Steering Control Assembly (Standard and AutoTrac)

Group 15: Service Brakes

Essential Tools

Service Parts Kits

Specifications

General Repair Procedures—Brake Valve

Remove and Install Brake Valve

Disassemble, Inspect, and Assemble Brake Valve

Bleed Brakes

Bleed MFWD Brakes

Check Manual Brakes (Without Trailer Brakes)

Check Manual Brakes (With Air Trailer Brakes Only)

Check Manual Brakes (With Hydraulic Trailer Brakes Only)

Group 20: Trailer Brakes

Replace Hand Brake Cable

Adjust Air Brake and Hand Brake

Section 70: Hydraulics

Group 00: Component Removal and Installation

Specifications

Remove and Install Hydraulic Pump

Remove And Install Hitch Valve

Remove and Install Deluxe SCVs

Remove and Install Mid-Stack

Remove and Install SCV Valve Stack and Couplers

Group 05: Hydraulic System Repair

Essential or Recommended Tools

General Repair Procedures—Hydraulic System

Specifications

Use Special Wrench

Install Hydraulic Fittings

Group 10: Hydraulic Pump And Charge Pump

Other Material

Specifications

Remove And Install Hydraulic Pump Controller

Repair Hydraulic Pump Controller

Exploded View—Hydraulic Pump

Disassemble, Inspect, and Assemble Hydraulic Pump

Exploded View—Hydraulic Charge Pump

Group 15: Hydraulic System Valves

Specifications

General Repair Procedures—Hitch and Inlet-Priority Valves

Disassemble, Inspect, and Assemble Inlet-Priority Valve

Exploded View—Hitch Valve

Disassemble, Inspect, and Assemble Hitch Valve

Test Surge Relief Valve

Group 20: Selective Control Valves and Couplers

Essential or Recommended Tools

Specifications

General Repair Procedures—Selective Control Valves

Remove, Install, And Adjust Cables—Manual SCV

Exploded View—Manual Selective Control Valve (Three-Postion)

Replace Control Knob—Manual SCV

Inspect Poppet Load-Check Valves—Manual SCV

Inspect Pressure Compensator Valve—Manual SCV

Inspect Metering Valve—Manual SCV

Disassemble, Inspect, And Assemble Control Valve—Manual SCV

Exploded View—Deluxe SCV

Repair Deluxe SCVs

Rear Hydraulic Couplers (Deluxe)—Repair

Remove and Install Mid-Stack Couplers

Disassemble and Assemble Mid-Stack

Repair Directional Valve

Group 30: Rear 3-Point Hitch

Essential or Recommended Tools

Specifications

Remove and Install Hitch Lift Cylinders

Cross-Sectional View—Lift Cylinder

Disassemble, Inspect, and Assemble Lift Cylinder

Remove and Install Rockshaft Support Housing

Remove and Install Rockshaft

Replace Rockshaft Housing Bushings

Repair Draft Sensing Shaft

Repair Draft Link

Group 35: Front 3-Point Hitch

Essential or Recommended Tools

Specifications

Exploded View—Front 3-Point Hitch

Exploded View—Front Hitch Lift Cylinder

Repair Front Hitch Lift Cylinder

Group 40: Bleed Hydraulic System

Essential or Recommended Tools

Bleed Hydraulic System

Section 80: Miscellaneous

Group 05: Hood

Specifications

Remove and Install Hood

Group 10: Front Axle (Two-Wheel Drive)

Essential or Recommended Tools

Specifications

Other Material

Remove Front Axle (Two-Wheel Drive)

Install Front Axle (Two-Wheel Drive)

Replace Knee Bushings

Replace Wheel Bearings

Group 15: Steering Cylinders (Two-Wheel Drive)

Other Material

Service Parts Kits

Specifications

Remove and Install Steering Cylinder (Two-Wheel Drive)

Cross-Sectional and Exploded View—Steering Cylinder—Two-Wheel Drive

Group 20: Rear Wheels

Service Heavy-Duty Wheel Clamps

Group 25: Wagon And Pick-Up Hitch

Specifications

Repair Wagon Hitch

Adjust Wagon Hitch Release

Repair Pick-Up Hitch

Adjust Pick-Up Hitch

Section 90: Operator Station

Group 00: Component Removal and Installation

Essential or Recommended Tools

Specifications

Remove Cab

Install Cab

Repair Cab

Group 05: Heating, Ventilating, and Air Conditioning (HVAC)

Heater Line Routing

Remove HVAC Module

Install HVAC Module

Remove and Install Heater Core

Remove and Install Heater Control Valve (Without CLIMATRAK)

Remove and Install Heater Control Valve (With CLIMATRAK)

Leak Test Manual Heater Control Valve

Install Heater Control Valve

Remove and Install Control Cable

Adjust Heating/Cooling Controls

Group 10: Air Conditioning System

Essential or Recommended Tools

Other Material

Specifications

Service Parts Kits

Hose and Tubing O-Ring Connection Torques

Diagram—Air Conditioning System

Reference Chart—Fittings—Air Conditioning System

Discharge Air Conditioning System

Flushing, Purging, and Evacuating Information

Flush Air Conditioning System

Purge Air Conditioning System

Evacuate Air Conditioning System

Charge Air Conditioning System

Refrigerant Oil Information

Check Compressor Oil Charge

Determine Correct Refrigerant Oil Charge

Add Refrigerant Oil to System

Add Refrigerant Oil to Pressurized System

Remove and Install Compressor

Test Volumetric Efficiency

Test Shaft Seal Leakage

Disassemble and Assemble Compressor Clutch

Check Clutch Hub Clearance

Inspect Compressor Manifold

Disassemble, Inspect, and Assemble Compressor

Remove and Install Compressor Relief Valve

Replace Receiver-Dryer

Remove and Install Expansion Valve

Remove Air Conditioning Condenser

Leak Test Condenser

Leak Test Evaporator

Remove and Install Evaporator

Group 15: Air Suspension Seat

Essential or Recommended Tools

Other Material

Specifications

Remove and Install Seat

Repair Seat Air System

Repair Seat Suspension

Repair Seat Back

Repair Seat Control Knobs

Group 20: ACTIVE SEAT™

Essential or Recommended Tools

Other Material

Specifications

Purging Air from ACTIVE SEAT ACTIVE SEAT is a trademark of Deere & Company System

Remove and Install ACTIVE SEAT ACTIVE SEAT is a trademark of Deere & Company

Remove and Install ACTIVE SEAT Actuator

Remove and Install Actuator Hoses

Remove and Install Seat Control Valve Assembly

Remove and Install Accumulator

Checking and Charging Replacement Accumulators

Repair ACTIVE SEAT Air System

Repair Active Seat Suspension

Repair Seat Back

Group 25: Armrest

Remove and Install Armrest Control

Disassemble and Assemble Armrest Adjustment Assembly

Group 30: Cab Door and Windshield

Specifications

Repair Cab Door Latch

Cab Door Adjustment—Step 1

Cab Door Adjustment—Step 2

Cab Door Adjustment—Step 3

Cab Door Adjustment—Step 4

Replace Windshield Glass or Seal

Section 99: Dealer Fabricated Tools

Group 05: DFRW

DFRW20—Compressor Holding Fixture

DFRW30A—Axle Jacking Tool

DFRW87—Pick-Up Hitch Adapter Plate

DFRW92—Mounting Guide Pins

DFRW132—Differential Side Bevel Gear End Play Tool

DFRW139—Evaporator Flushing Block

DFRW148—ACTIVE SEAT™ Control Valve Holding Tool

DFRW151—Radiator Cap Adapter

DFRW156—Shift Valve Bore Flushing Can

DFRW168 — Park Solenoid Jumper Harness

DFRW179—Front PTO Support Bracket

DFRW182—Cone Stand Adapter

DFRW193—Modification to JT01730 Rear PTO Removal Bracket to a JT01730A

DFRW194—MFWD Input Shaft Holding Tool

DFRW212 Leak Test Assembly

John Deere 2WD or MFWD Tractors 7720, 7820, 7920 Repair Service Manual (TM2080)