Complete Repair Service Technical Manual for John Deere 7220, 7320, 7420, 7420 Hi-Crop, 7520 2-Wheel Drive Tractor, with all the shop information to maintain, repair, and service like professional mechanics.

John Deere 2WD or MFWD - PIN prefix P0 Tractors 7220, 7320, 7420, 7420 Hi-Crop; 7520 Two-Wheel Drive 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.

tm2070 - 7220, 7320, 7420, 7520 Tractors Repair Technical Manual.pdf
tm2070 - 7220, 7320, 7420, 7520 Tractors Repair Technical Manual.epub

PRODUCT DETAILS:
Total Pages: 2,852 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
   Foreword
   Safety Information
      Safety
   General Information
      Operational Checkout
      General Reference Information
      Test Equipment Calibration
   Diagnostic Trouble Codes
      CCU Code Diagnostics
      HCU Code Diagnostics
      LHP Code Diagnostics
      RCU Code Diagnostics
   Observable Symptoms
      Brakes
      Operator Station
      Hydraulics
   Engine
      General Information
   Fuel, Air Intake and Engine Cooling Systems
      Fuel/Air/Cooling System Theory of Operation
   Electrical System
      Diagnostic Codes and Addresses
      Electrical System Information
      System Diagrams
      System Diagram References
      System Functional Schematic (CAB)
      System Functional Schematic (OOS)
      Wiring Harnesses
      Sub-System Diagnostics
      Starting, Power and Charging Circuit Diagnostics
      Wiper and Seat Circuit Diagnosis
      Ground Fault Circuit Interrupter Diagnosis
      Air Quality System (AQS) Diagnosis
      Radio, Horn, Dome Lamp and Multi-Function Control Circuit
      Lighting Circuit Diagnosis
      Accessory Connector and Lighter Circuit Diagnosis
      Hitch Control Diagnosis
      CCU Diagnosis
      Differential Lock Circuit
      MFWD Circuit
      Rear PTO Circuit
      Wheel and Radar Speed Circuit
      Engine Speed Sensor Circuit
      Fuel Level Sender Circuit
      System Voltage Circuit
      Engine Coolant Temperature Sensor
      Hydraulic Oil Temperature Circuit
      Engine Oil Pressure Sensor Circuit
      Transmission Oil Pressure Circuit
      Air Filter Restriction Sensor Circuit
      Transmission Oil Filter Restriction Sensor Circuit
      Hydraulic Oil Filter Restriction Sensor Circuit
      Sensor Excitation Power Circuit
      Engine Hours and Engine Starts
      Fuel Timing Advance Circuit
      Display Modules
      PowrQuad Control Circuit
      ROW-TRAK Control Circuit
      CCD Communication
      Calibration
      CCU Calibration
      Performance Monitor Calibration and Diagnostic Tool
      Battery References
   Transmissions
      Operational Checks
      Transmission And Reverser Diagnosis
      PowrQuad PowrQuad is a trademark of Deere & Company.
Diagnosis
      Reverser Control Unit (RCU)
      SyncroPlus SyncroPlus is a trademark of Deere & Company.
Diagnosis
      Theory Of Operation
      PowrQuad PowrQuad is a trademark of Deere & Company.
Theory of Operation
      Reverser Control Unit (RCU) Theory of Operation
      SyncroPlus SyncroPlus is a trademark of Deere & Company.
Theory of Operation
   Drive Systems
      Operational Checks
      Drive System Diagnosis
      Adjustments
      Theory of Operation
   Steering and Brakes
      Steering and Brakes Theory of Operation
   Hydraulic System
      Operational Checks
      Hydraulic System Diagnosis
      Tools and Safety
      Diagnostic Guidelines
      Preliminary Checks
      Hydraulic Diagnosis
      Additional Troubleshooting Information
      Hitch Electrical Diagnosis
      HCU Additional Tests
      ROW-TRAKROW-TRAK is a trademark of Deere & Company
Tests
      Calibrations and Adjustments
      Hitch Calibrations and Adjustments
      ROW-TRAK™ Calibrations and Adjustments
      Theory of Operation
      Hydraulic System Diagrams
      Hydraulic Control Circuit
      Steering Circuit
      Selective Control Valves (SCV)
      Hitch
      Electro-Hydraulic Depth Control
      Headland Management Systems (HMS)
      Hitch Dampening
   Operator Station
      Operational Checks
      Air Conditioning System Diagnosis
      Air Conditioning Theory of Operation
   Dealer Fabricated Tools
      Dealer Fabricated Tools

tm2070 - 7220, 7320, 7420, 7520 Tractors Repair

Table of Contents

Foreword

Notice To The Dealer

Dealer Predelivery Information Form

Section 05: Safety

Group 05: 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

Safety Information - Air Brake System

Avoid Eye Contact With Radar

Keep ROPS Installed Properly

Replace Safety Signs

Dispose of Waste Properly

Live With Safety

Safety Measures on Electronic Control Units

Section 10: General information

Group 05: Specifications

Specifications

Cooling Circuit

Injection Pump (Delphi DP201)

Injection pump (Bosch VP44)

Injection Pump (Stanadyne DE10)

Air Intake System

Electrical System

Hydrostatic Steering System

Clutch

AutoPowr/IVT Transmission

PowrQuad Plus Transmission

Creeper transmission

Rear PTO

Front PTO

Differential assembly

Differential lock

Final drives

Front-Wheel Drive

FWD Axle with TLS

Hydraulic Brakes

Parking Lock

Hydraulic System With Axial Piston Pump

Rockshaft

Front Hitch

Ground Speeds

Front and Rear Wheels

Dimensions and Weights

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 Screw Torque Values

Metric Bolt and 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

Group 10: Tune-Up

Repair Specifications

Using High-Pressure Washers

Preliminary Engine Test

Removing and Cleaning the Primary Air Cleaner Element

Checking the Air Cleaner Safety Element

Installing the Primary Filter Element

Check 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

Replace Fuel Filter, Fuel Pump, and Bleed Fuel System

Check Fuel Transfer Pump Operation

Bleeding the fuel system (with Bosch VP44 injection pump)

Checking the fuel filter (with Bosch VP44 injection pump)

Cleaning the water trap

Checking the Fuel Filter (with Denso/Stanadyne Injection Pump)

Bleeding the Fuel System (with Stanadyne Injection Pump)

Bleeding the Fuel System (with Denso Injection Pump)

Run the Engine until it is Warm, and Check Engine Speeds

Cleaning the Battery, Cables and Battery Box with a Clean Cloth

Check Neutral Start Circuit

Checking operation of starter motor

Checking the lighting circuit

Final Engine Check

Tractor Operation Check

Group 15: Inspection Before Delivery

Predelivery Inspection

Section 20: Engine

Group 00: Installing And Removing Components

Special Tools

Repair Specifications

Remove Engine

Install Engine

Section 30: Fuel, Air Intake, Heating, Exhaust System

Group 05: Speed Control

General Information

Specifications

Adjust Hand Throttle Lever And Accelerator Pedal

Adjust Speed Control Linkage

Hand Throttle Lever—Exploded View

Accelerator Pedal, with Mechanical Speed Control

Accelerator Pedal, With Electronic Speed Control (Cruise Control)

Adjust Accelerator Pedal

Changing the Accelerator Pedal's Potentiometer

Replacing the Accelerator Pedal Assembly (AutoPowr/IVT)

Removing the Accelerator Pedal's Potentiometer

Removing the Hand Throttle's Potentiometer

Group 10: Fuel System

General Information

Remove Fuel Tank

Installing the Fuel Tank

Replace Fuel Gauge Sender

Replace Fuel Transfer Pump

Installing Check Valve in Fuel System

Replace Fuel Filter, Fuel Pump, and Bleed Fuel System

Group 15: Air Intake System

General Information

Air filter - Exploded view

Replacing Sending Unit For Air Cleaner Restriction (B02)

Group 20: Heating System

General Information

Specifications

Remove the Radiator

Change Fan Or Viscous Fan Drive

Removing and Installing the Expansion Tank

Remove And install Thermostat Valve

Install Radiator

Filling the Cooling System with Coolant

Relieving Tension on the Drive Belt

Replace Drive Belt

Replacing the Drive Belt Tensioner

Repairing the Fan Console

Group 25: Cold-Weather Starting Aid

Fuel Preheater

Electrical Starting Aid

Coolant Heater

Test Ground-Fault Circuit Interrupter

Replace Transmission Cover Heater

Replace Hydraulic Charge Pump Heater

Group 30: Exhaust System

General Information

Specifications

Install Muffler

Exhaust Pipe or Intermediate Exhaust Pipe

Exhaust Pipe or Intermediate Exhaust Pipe —Upright

Section 40: Electrical Equipment

Group 05: Electrical Connectors

Special or Essential Tools

General

Using high-pressure washers

Disconnecting electrical circuits

Stripping Wire Ends

Installing a Terminal

CINCH CINCH is a trademark of Cinch Inc. Wedgebox Connectors

CINCH CINCH is a trademark of Cinch Inc. Flexbox Connectors

WEATHER PACK Connectors

METRI PACK Connector with Terminal Lock at the Rear

METRI PACK Connector with Terminal Lock at the Front

METRI PACK Connectors

Connector at CAN Bus Terminating Resistor

Connectors for Electronic Control Units

Connector for Bosch VP44 Injection Pump

CRIMP SNAP IN connectors

Connectors

Blade Terminals

CPC Connectors

KOSTAL Connectors

DEUTSCH Connectors

Individual Terminals

Relay Socket

Fuse and Relay Boxes on Tractors with Operator's Cab

Group 10: Wiring Harnesses

Disconnecting electrical circuits

Ground Point Locations

Removing and Installing Harness W01 — Power Supply

Remove And Install Harness W02—6-Cylinder Engine, Level 1

Remove And Install Harness W02 — 6-Cylinder Engine, Level 4

Remove And Install Harness W03—Starting Aid, Level 1

Remove And Install Harness W03 — Starting Aid, Level 4

Remove And Install Harness W04 — Headlights

Remove And Install Harness W05 — Front Corner Worklights

Removing and Installing Harness W06 — Front-Wheel Drive Axle with TLS

Removing and Installing Harness W07 — Front PTO

Remove And Install Harness W08 — Cab

Remove And Install Harness W08 — Cab (AutoPowr/IVT Transmission)

Remove And Install Harness W09 — Cowl

Remove And Install 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 W12 — Command Arm (AutoPowr/IVT transmission)

Removing and Installing Harness W13 — Clutch Sending Unit

Remove And Install Harness W14 — 3-Terminal Power Outlet Socket

Remove And Install Harness W15 — Engine Control Unit (ECU) (Level 4)

Remove And Install Harness W16 — E-SCV / E-ICV Controller (SIC) (Tier I)

Remove And Install Harness W16 — E-SCV / E-ICV Controller (SIC) (Tier II)

Removing and Installing Harness W17 — Multi-function Unit

Removing and Installing Harness W18 — Windshield Wiper Switch (with Intermittent Wipe)

Remove And Install Harness W19 — Cab Roof

Removing and Installing Harness W20 — Turn Signal and Clearance Lights

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 W22 — Xenon (HID) Worklights on Rear of Cab Roof

Removing and Installing Harness W23 — Windshield Wiper (With Switch for Windshield)

Removing and Installing Harness W23 — Windshield Wiper Switch (Without 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

Remove And Install Harness W28 — Front End Of Transmission

Remove And Install Harness W28 — Front End of Transmission (AutoPowr/IVT Transmission)

Remove And Install Harness W29 — Valve Block (AutoPowr/IVT Transmission)

Removing and Installing Harness W30 — Rear End of Transmission

Removing and Installing Harness W31 — 7-Terminal Power Outlet Socket

Remove And Install Harness W32 — Stepper Motors

Removing and Installing Harness W33 — Service

Group 15: Charging Current Circuit

Essential Tools

Specifications

Repairing the Alternator

Disconnecting Electrical Circuits

Relieving Drive Belt Tension

Remove/Install the Alternator

Pulley Remove and Install

Group 20: Starting Circuit Current

Special tools

Specifications

Repairing the Starter Motor

Disconnecting Electrical Circuits

Removing and installing the starter motor

Group 25: Fuses, Relays, And Connectors

General Information

Special Tools

Repair Specifications

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

Replace The Fuses At Electrical Starting Aid, Tractors With Level 4 Engine Control Unit (ECU)

Replace Injection Pump Fuse, Tractors With Level 4 Engine Control Unit (ECU)

Replace Starting Motor Relay, Tractors With Level 4 Engine Control Unit (ECU)

Replace Relay For Electrical Starting Aid, Tractors With Level 4 Engine Control Unit (ECU)

Replace Injection Pump Relay, Tractors With Level 4 Engine Control Unit (ECU)

Replace Main Switch

Replace Brake Switches

Replacing the Light Switch

Replace Worklight Switches

Replace Switch for Lights on Cab Frame

Replace Beacon Light Switch

Replace Hazard Warning Light Switch

Replace Switches On Multi-Function Unit

Replacing the Rear Window Wiper and Washer Switch

Replace Windshield/Rear Window Switches

Replacing the Dome Light Door Switch

Replace Front-Wheel Drive Switch

Replace Headland Management (HMS) Switch

Replace Record/Save Switch

Replace Program Switch

Replace Gear Selector Switch On Tractors With Powrquad Plus Transmissions

Replace Park Lock Switch On Tractors With Powrquad Plus Transmissions

Replacing the Fan Switch

Replacing the Switch of the Air-Conditioning System Compressor

Replace Differential Lock Switch

Replace PTO Switch

Replace Rockshaft Remote Control Switch

Replacing the Switches for the Electrical Rear-View Mirrors

Replacing the Switch for the Heated Rear-View Mirrors

Replacing the Switch for the Heated Rear Window

Replace Cruise Control Potentiometer

Rockshaft Control

Electrical Activators For Selective Control Valves (E-SCV)

Electrical Activators For Independent Control Valves (E-ICV)

Group 30: Monitoring Systems

General Information

Note

Disconnecting electrical circuits

Replace Sender For Coolant Temperature Gauge (B08)

Replace Acoustic Alarm

Replace Acoustic Alarm (Park Lock) On Tractors With AutoPowr/IVT Transmission

Group 40: Electrical Components

General Information

Specifications

Disconnecting electrical circuits

Replacing the 7-Terminal Power Outlet Socket

Replacing the Multiple Power-Outlet Socket Strip

Remove Wiper Motor

Adjusting the Headlights

Adjusting the Lights on the Cab Frame

Safety Instructions for Replacing a Halogen Bulb

Safety Instructions for Replacing Xenon (HID) Bulbs and Ballast Units

Replacing Xenon (HID) Worklights and Ballast Units

Section 53: AutoPowr/IVT Transmission (7420, 7520)

Group 00: Removing And Installing AutoPowr/IVT Transmission

Special tools

Dealer-fabricated special tools

Repair specifications

Removing The AutoPowr/IVT Transmission

Installing The AutoPowr/IVT Transmission

Group 05: Transmission Shifting Mechanisms

Reconditioning the Speed Control Lever

Reverser control, reconditioning

Reconditioning the Clutch Actuation Mechanism

Reconditioning the Manual Park Lock Release Mechanism

Releasing the Park Lock Manually

Group 10: Input Housing

Special Tools

Service Equipment and Tools

Other Material

Specifications

Installing and Removing the Vibration Damper (Repair Level 1 and 2)

Removing Clutch Control Block (Repair Level 1 and 2)

Repairing Clutch Control Block (Repair Level 1 and 2)

Installing Clutch Control Block (Repair Level 1 and 2)

Installing and Removing the Transmission Oil Filter (Repair Level 1 and 2)

Removing the System Pressure Control Block (Repair Level 1 and 2)

Installing System Pressure Control Block (Repair Level 1 and 2)

Replacing Thermostat Valve (Repair Level 1 and 2)

Replacing Filter By-Pass Valve (Cold-Weather Starting) (Repair Level 1 and 2)

Removing the Transmission Oil Pump (Repair Level 1 and 2)

Repairing the Transmission Oil Pump (Repair Level 1 and 2)

Installing the Transmission Oil Pump (Repair Level 1 and 2)

Removing and Installing Front Plate (Repair Level 1 and 2)

Separating Transmission Halves, Input/Output Housing (Repair Level 2)

Removing BG Disk Brake (Repair Level 2)

Installing BG Disk Brake (Repair Level 2)

Removing Shift Turret (Repair Level 2)

Installing Shift Turret (Repair Level 2)

Repairing Through-Drive Shaft (Repair Level 2)

Repairing P4 Planet Pinion Carrier and C3/C4 Clutch (Repair Level 2)

Repairing P4/BG Ring Gear (Repair Level 2)

Removing Hydrostatic Unit (Repair Level 2)

Installing Hydrostatic Unit (Repair Level 2)

Repairing Hydrostatic Unit Output Shaft (Repair Level 2)

Preparations for Installation of Individual Components in Input Housing (Repair Level 2)

Measuring Gaps Between Transmission Shafts in Input/Output Housing (Repair Level 2)

Joining Transmission Halves, Input/Output Housing (Repair Level 2)

Layout and Location of the Individual Transmission Sending Units

Replacing Pressure Sending Units B87, S73, S74 of System Pressure Control Block (Repair Level 1 and 2)

Replace Hydrostatic Unit Speed Sending Unit (B62) (Repair Level 1 and 2)

Group 15: Output Housing

Special Tools

Specifications

Removing Park Lock Control Block (Repair Level 1 and 2)

Replacing Park Lock Control Block Solenoids and Sensor—Later Version

Replacing Park Lock Control Block Solenoids and Sensor—Earlier Version

Repairing Park Lock Control Block (Repair Level 1 and 2)

Installing Park Lock Control Block (Repair Level 1 and 2)

Repairing Locking Pawl of Park Lock (Repair Level 1 and 2)

Removing Direction Turret and Reverse Intermediate Shaft (Repair Level 2)

Removing Hydrostatic Unit Drive Shaft (Repair Level 2)

Removing Through-Drive Shaft (Repair Level 2)

Removing Pneumatic Pump and Idler Gear (Repair Level 2)

Installing Pneumatic Pump and Idler Gear (Repair Level 2)

Installing Hydrostatic Unit Drive Shaft (Repair Level 2)

Installing Through-Drive Shaft (Repair Level 2)

Installing Direction Turret and Reverse Intermediate Shaft (Repair Level 2)

Layout and Location of the Individual Transmission Sending Units

Replacing Transmission Speed Sending Unit (B63) (Repair Level 1 and 2)

Replacing Transmission Input Speed Sending Unit (B61) (Repair Level 1 and 2)

Replacing Transmission Output Speed Sending Unit (B84) (Repair Level 1 and 2)

Replace Pressure Sending Unit (B90) for Park Lock Control Block (Repair Level 1 and 2)

Group 20: Assemble Intermediate Shaft

Specifications

Sectional View of Differential Drive Shaft

Removing the Differential Drive Shaft

Disassemble Differential Drive Shaft

Cone Point Adjustment

Assembling the Differential Drive Shaft

Section 53A: AutoPowr/IVT Transmission (7320)

Group 00: Removing and Installing the AutoPowr/IVT Transmission

Special or Essential Tools

Dealer-Manufactured Special Tools

Specifications

Removing the AutoPowr/IVT Transmission

Installing the AutoPowr/IVT Transmission

Group 05: Transmission Shift Controls

Reconditioning the Speed Control Lever

Reverser control, reconditioning

Reconditioning the Clutch Actuation Mechanism

Reconditioning the Manual Park Lock Release Mechanism

Releasing the Park Lock Manually

Group 10: Input Housing

Special Tools

Service Equipment and Tools

Other Material

Specifications

Replace Hydrostatic Unit Speed Sending Unit (B62) (Repair Level 1 and 2)

Replacing Pressure Sending Unit B87, S73, S74 (Repair Level 1 and 2)

Replacing Thermostat Valve (Repair Level 1 and 2)

Replacing Filter By-Pass Valve (Cold-Weather Starting) (Repair Level 1 and 2)

Replacing the Oil Filter (Repair Level 1 and 2)

Removing the System Pressure Control Block (Repair Level 1 and 2)

Installing System Pressure Control Block (Repair Level 1 and 2)

Removing the Transmission Oil Pump (Repair Level 1 and 2)

Repairing the Transmission Oil Pump (Repair Level 1 and 2)

Installing the Transmission Oil Pump (Repair Level 1 and 2)

Removing the Vibration Damper (Repair Level 1 and 2)

Reconditioning the Vibration Damper (Repair Level 1 and 2)

Installing the Vibration Damper (Repair Level 1 and 2)

Removing the Front Plate (Repair Level 1 and 2)

Installing the Front Plate (Repair Level 1 and 2)

Removing Clutch Control Block (Repair Level 1 and 2)

Reconditioning Clutch Control Block (Repair Level 1 and 2)

Installing the Clutch Control Block (Repair Level 1 and 2)

Separating the Input and Output Housings (Repair Level 2)

Joining the Input and Output Housings (Repair Level 2)

Removing BG Disk Brake (Repair Level 2)

Installing BG Disk Brake (Repair Level 2)

Removing Shift Turret (Repair Level 2)

Reconditioning the Shift Turret (Repair Level 2)

Installing the Shift Turret (Repair Level 2)

Removing the Hydrostatic Unit (Repair Level 2)

Installing the Hydrostatic Unit (Repair Level 2)

Reconditioning the Hydrostatic Unit Output Shaft (Repair Level 2)

Measuring the Gaps Between Transmission Shafts (Repair Level 2)

Replacing the Wiring Harness / Replacing the Fittings on the Housing (Repair Level 2)

Group 15: Output Housing

Special or Essential Tools

Specifications

Replacing Transmission Input Speed Sending Unit (B61) (Repair Level 1 and 2)

Replacing Transmission Output Speed Sending Unit (B63) (Repair Level 1 and 2)

Replace Pressure Sending Unit (B90) for Park Lock Control Block (Repair Level 1 and 2)

Replacing the Bleed Valve (Repair Level 2)

Removing the Park Lock Control Block (Repair Level 1 and 2)

Replacing Park Lock Control Block Solenoids and Sensor—Later Version

Replacing Park Lock Control Block Solenoids and Sensor—Earlier Version

Reconditioning the Park Lock Control Block (Repair Level 1 and 2)

Reconditioning the Park Lock Cam (Repair Level 1 and 2)

Installing the Park Lock Control Block (Repair Level 1 and 2)

Removing the Pneumatic Pump (Repair Level 1 and 2)

Installing the Pneumatic Pump (Repair Level 1 and 2)

Removing the Direction Turret and Reverse Intermediate Shaft (Repair Level 2)

Installing Direction Turret and Reverse Intermediate Shaft (Repair Level 2)

Removing the Drive Shaft for the Hydrostatic Unit (Repair Level 2)

Removing the Through-Drive Shaft (Repair Level 2)

Installing the Through-Drive Shaft (Repair Level 2)

Removing the Drive Gear for the Hydrostatic Unit (Repair Level 2)

Removing the Idler Gear with Pneumatic Pump Drive (Repair Level 2)

Installing the Idler Gear with Pneumatic Pump Drive (Repair Level 2)

Replacing the Screw Plugs (Repair Level 1 and 2)

Group 20: Assembling the Differential Drive Shaft

Specifications

Differential Drive Shaft — Sectional View

Disassembling the Differential Drive Shaft (without Bearings)

Reconditioning the Cover with the Park Lock Pawl

Assembling the Differential Drive Shaft (without Bearings)

Replacing the Differential Drive Shaft / Reconditioning the Bearings

Section 55: PowrQuad And Powrquad Plus Transmissions (7420, 7520)

Group 00: Install And Remove Components

Special tools

Dealer-fabricated special tools

Repair Specifications

PowrQuad Plus Transmission, Removal And Installation

Remove Powrquad Transmission

Install Powrquad Transmission

Removing the creeper transmission

Installing the Creeper Transmission

Remove Range Transmission

Install Range Transmission

Group 05: Transmission Shifting Mechanisms

Specifications

Repairing the Range Shift Linkage (PowrQuad Plus and AutoQuad Transmissions)

Check And Adjust Shift Units (Powrquad Plus Transmissions)

Repairing the Clutch Actuation (PowrQuad Plus, AutoQuad and AutoQuad Plus Transmissions)

Reconditioning the Range Shift Linkage (PowrQuad Plus and AutoQuad Transmissions) (Late Version)

Checking and Adjusting the Shift Controls/Linkages (PowrQuad Plus and AutoQuad Transmissions) (Late Version)

Group 10: PowrQuad Module

Essential or Recommended Tools

Repair Specifications

Transmission Components

Replacing the temperature sensor and pressure switches

Removing and Installing the Oil Filter Housing

Replacing the Oil Filter

Remove And Install Front Valve Housing

Removing and Installing the Valves in the Front Valve Housing

Remove And Install Front Transmission Cover

Removing and Installing the Valves in the Front Transmission Cover

Removing and Installing the Shift Valve Housing

Remove And Install Valves In Shift 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 15: Creeper Transmission

Special tools

Repair specifications

Remove Creeper Transmission

Repair Creeper Transmission

Install Creeper Transmission

Group 20: Range Transmission

Essential or Recommended Tools

Specifications

Remove Range Transmission

Cross Sectional View—Range Box

Repair Range Transmission

Install Range Transmission

Repair Shift Cover

Replace Speed Sensor

Section 55A: PowrQuad And Powrquad Plus Transmissions (7220, 7320)

Group 00: Removal and Installation of Components

Special or Essential Tools

Dealer-Manufactured Special Tools

Specifications

PowrQuad Plus Transmission, Removal and Installation

AutoQuad Transmission, Removal and Installation

Removing the PowrQuad Transmission

Installing the PowrQuad Transmission

Removing Creeper or Option Transmissions

Installing Creeper or Option Transmissions

Removing the Range Transmission

Installing the Range Transmission

Group 05: Transmission Shift Controls

Specifications

Gear Shift Linkage, Reconditioning (Reverser Control on Steering Column)

Range Shift Linkage, Reconditioning (Reverser Control on Steering Column)

Reconditioning the Reverser Control (on Steering Column)

Adjusting the Reverse Drive Lever (Reverser Control on Steering Column)

Adjusting the Reverse Drive Linkage

Checking and Adjusting the Shift Mechanisms/Linkages (Reverser Control on Steering Column)

Repairing the Range Shift Linkage (PowrQuad Plus and AutoQuad Transmissions)

Check and Adjust the Shift Controls/Linkages (PowrQuad Plus and AutoQuad transmissions)

Adjust the Clutch Pedal (PowrQuad Transmission)

Repairing the Clutch Actuation (PowrQuad Plus, AutoQuad and AutoQuad Plus Transmissions)

Reconditioning the Range Shift Linkage (PowrQuad Plus and AutoQuad Transmissions) (Late Version)

Checking and Adjusting the Shift Controls/Linkages (PowrQuad Plus and AutoQuad Transmissions) (Late Version)

Group 10: PowrQuad Module

Essential or Recommended Tools

Other Material

Specifications

Transmission Components

Replacing the Neutral Start Circuit (with Mech. Actuated PowrQuad Module)

Replace Temperature Sensor and Pressure Switches

Removing and Installing the Oil Filter Housing

Replacing the Oil Filter

Removing and Installing the Front Valve Housing

Removing and Installing the Valves in the Front Valve Housing

Removing and Installing the Valves in the Front Valve Housing (with Mech. Actuated PowrQuad Module)

Removing and Installing Front Transmission Cover

Removing and Installing the Valves in the Front Transmission Cover

Removing and Installing the Valves in the Front Transmission Cover (with Mech. Actuated PowrQuad Module)

Removing and Installing the Shift Valve Housing

Removing and Installing the Valves in the Shift Valve Housing

Removing and Installing the Shift Valve Housing (with Mech. Actuated PowrQuad Module)

Removing and Installing the Valves in the Shift Valve Housing (with Mech. Actuated PowrQuad Module)

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 15: Creeper Transmission

Specifications

Removing the Creeper Transmission

Reconditioning the Creeper Transmission

Installing the Creeper Transmission

Reconditioning the Shift Cover

Group 20: Option Transmission

Specifications

Removing the Option Transmission

Reconditioning the Option Transmission

Installing the Option Transmission

Group 25: Range Transmission

Specifications

Range Transmission - Sectional View

Removing the Range Transmission

Reconditioning the Range Transmission

Installing the Range Transmission

Reconditioning the Shift Cover

Replacing the Transmission Speed Sensor (B104)

Section 56: Drive Systems (7420, 7520)

Group 00: Removal and Installation of Components

Special or Essential Tools

Dealer-Fabricated Special Tools

Specifications

Remove Fwd Clutch

Installing the FWD Clutch

Remove Differential Housing Using JT05723 and JT05724 Universal Support Stands

Remove Differential Housing Using JT07122 Spliting Stand

Install Differential Housing

Remove Final Drives

Install Final Drives

Removing the rear PTO

Installing the rear PTO

Removing the Front PTO

Installing the Front PTO

Group 05: Universal Joint Shaft And Torsion Damper

Specifications

Remove U.J. Shaft (Front-Wheel Drive)

Reconditioning the U.j. Shaft (FWD)

Installing the U.j. Shaft (FWD)

Remove Universal Joint Shaft (Engine)

Remove And Install Ring-Shaped Cooler

Remove Torsion Damper

Changing the Torsion Damper Bearings

Installing the Torsion Damper

Install Universal Joint Shaft (Engine)

Group 10: FWD Clutch

Special tools

Other material

Repair Specifications

Front-wheel drive clutch — Sectional view

Front-Wheel Drive Clutch — Exploded View

Replacing the Sending Unit for Front-Wheel Drive Axle Speed (B89)

FWD Clutch — Replacing Solenoid Valve

Replace FWD Clutch

Group 15: Differential

Special tools

Specifications

Remove Differential

Disassemble Differential

Differential — Exploded view

Assembling the differential

Install Differential

Group 20: Hydraulic Pump Drive

Special tools

Repair specifications

Remove And Disassemble Pump Drive Pinion Gear

Removing And Disassemble Pump Drive Gear

Assemble And Install Pump Drive Gear

Assembling and installing the pump drive pinion

Check And Adjust Pump Drive Pinion Backlash

Group 25: Final Drives

Special Tools

Other Material

Specifications

Repair Instructions

Remove 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

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: Hi-Crop Final Drive (7420)

Service Tools

Other Material

Specifications

General Repair Procedures—Hi-Crop Final Drive

Cross-Sectional View—Hi-Crop Final Drive

Remove Final Drive

Disassemble Final Drive

Assemble Final Drive

Install Final Drive

Group 35: Hi-Crop MFWD (7420)

Service Tools

Specifications

Cross-Sectional View—Planetary Carrier and Wheel Hub

Remove, Recondition, And Install Planetary Carrier And Wheel Hub

Assemble And Install Planetary Carrier And Wheel Hub

Cross-Sectional View—Knuckle Spindle Assembly

Disassemble, Inspect, and Assemble Knuckle Spindle Assembly

Install MFWD Axle Into Repair Stand

Cross-Sectional View—Planetary Carrier-Wheel Hub-Knuckle Spindle-U-Joint/Axle Shaft Assembly

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

Repair Differential Housing

Assemble Differential

Cross-Sectional View—Differential Drive Shaft and Input Quill

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

Adjust Ring Gear Backlash

Backlash Shim Pack Example and Worksheet

Install Differential Case Bearing Cup and Differential Housing

Disassemble And Assemble Axle Housing

Determine And Install Axle Housing Bearing Cup Shim Pack

Bearing Cup Shim Pack Procedure

Preload Shim Pack Example And Worksheet

Install Axle Housing

Cross-Sectional View—Steering Cylinder Housing Assembly

Remove And Disassemble Steering Cylinder

Cross-Sectional View—Steering Cylinder

Assemble And Install Steering Cylinder

Replace MFWD Pivot Bushing

Group 40: 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

Section 56A: Drive Systems (7220, 7320)

Group 00: Removal and Installation of Components

Special or Essential Tools

Dealer-Fabricated Special Tools

Specifications

Removing the FWD Clutch

Installing the FWD Clutch

Remove Differential Housing Using JT05723 and JT05724 Universal Support Stands

Remove Differential Housing Using JT07122 Splitting Stand

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

Group 05: U-Jointed Shafts and Torsion Damper

Specifications

Remove U.J. Shaft (Front-Wheel Drive)

Reconditioning the U.j. Shaft (FWD)

Installing the U.j. Shaft (FWD)

Removing The Universal Joint Shaft (Engine)

Removing and Installing the Ring-Shaped Cooler

Removing the Torsion Damper

Changing the Torsion Damper Bearings

Installing the Torsion Damper

Installing The Universal Joint Shaft (Engine)

Group 10: Front-Wheel Drive Clutch

Special Tools

Other Material

Specifications

Replacing the Sending Unit for Front-Wheel Drive Axle Speed (B89)

Disassembling the Front Wheel Drive Clutch

Front-Wheel Drive Clutch — Exploded View

Assembling the Front-Wheel Drive Clutch

Group 15: Differential

Specifications

Removing the Differential

Differential — Exploded View

Disassembling the Differential

Assembling the Differential

Differential - Exploded View (Late Version)

Recondition the Differential (Late Version)

Installing the Differential

Group 20: Hydraulic Pump Drive

Specifications

Reconditioning the Hydraulic Pump Drive

Adjusting the Hydraulic Pump Drive

Group 25: Final Drives

Special or Essential Tools

Specifications

Reconditioning the Final Drives

Group 30: Rear PTO Options

Special Tools

Dealer-Fabricated Special Tools

Other Material

Specifications

Replacing the Output Shaft Seal Ring

Replacing the O-Ring on a Reversible PTO

Removing the PTO Clutch

Reconditioning the PTO Clutch

Installing the PTO Clutch

Reconditioning the PTO Brake

Disassembling the PTO Drive Train

Reconditioning the Output Shaft (540/1000 rpm Reversible and Shiftable)

Assembling the Output Shaft (540/1000 rpm and 540/540E/1000 rpm Shiftable)

Reconditioning the Countershaft (540/1000 rpm and 540/540E/1000 rpm)

Assembling the PTO Shifter (540/1000 rpm Shiftable and 540/540E/1000 rpm)

Assembling PTO Drive Train

Adjusting Taper Roller Bearing at Output Shaft

Adjusting the Taper Roller Bearing of the Countershaft

Installing the Support and Adjusting the Taper Roller Bearings

Installing the PTO Housing

Removing the PTO Modulating Valve

Reconditioning the PTO Modulating Valve

Installing the PTO Modulating Valve

Repairing the Solenoid Valve

Replacing the PTO Speed Sending Unit

Changing and Adjusting the Bowden Cable

Group 35: Front PTO

Other Material

Specifications

General Repair Procedures

Replacing the Solenoid Valve

Reconditioning the Modulator Valve

Replacing the Front PTO Speed Sending Unit (B58)

Cleaning and Replacing the Filter

Reconditioning the Pressure-Regulating Valve

Checking the Cooler Relief and Filter By-Pass Valves

Removing and Installing the Valve Plate

Front PTO — Sectional View

Disassembling the Front PTO

Reconditioning the Oil Pump

Reconditioning the PTO Clutch

Reconditioning the PTO Brake

Reconditioning the Intermediate Gear Shaft (PTO Rotating Counterclockwise)

Reconditioning the Drive Shaft

Assembling the Front PTO

Section 60: Steering And Brakes

Group 05: Hydrostatic Steering

Special Tools

Specifications

Preliminary Work

Disconnect/Connect Steering or Brake Hoses

Remove 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)

Recondition the Steering Column

Install Steering Column and Steering Valve

Group 10: Brake Valve

Special Tools

Specifications

General Repair Procedures—Brake Valve

Remove and Install Accumulator

Brake Valve (With Power Fill)

Power-Fill Brake Valve with MFWD and Disk Brake

Group 15: Rear Wheel Brakes

Specifications

Preliminary Work

Removing the Rear Brakes

Rear Brakes—Exploded View

Repairing the Rear Brakes

Install Rear Brakes

Final Assembly

Bleed Brakes (Brake Valve With Power-Fill Brakes, MFWD And Disk Brake)

Section 70: Hydraulic System

Group 05: Control Elements

Specifications

Selective Control Valves — Remove And Install Actuating Elements

Selective Control Valves — Adjusting the Bowden Cable

Remove and Install Multifunction Lever

Adjust the Multifunction Lever (Shift Console)

Group 10: Hydraulic Pump And Charge Pump

Other Material

Specifications

Remove And Install Charge Pump

Recondition Charge Pump

Charge Pump - Check Lube Oil Valve

Hydraulic Oil Reservoir — Restrictor

Hydraulic Pump — Remove And Install Pressure-And-Flow Controller

Hydraulic Pump — Recondition Pressure-And-Flow Controller

Remove And Install Hydraulic Pump

Recondition Hydraulic Pump

Group 15: Valves

Special or Essential Tools

Special Tools

Special Tools (Dealer Fabricated)

Hydraulic System — General Instructions on Safety and Repair

Direct Control of Rockshaft

Remove Rockshaft Valve

Recondition Rockshaft Valve

Rockshaft Valve — Depth To Which Raising And Lowering Valves Are Installed

Rockshaft Valve — Remove and Install Stepper Motor

Rockshaft Valve — Centering Stepper Motor

Install Hitch Valve

Remove Main Block

Recondition Main Block

Install Main Block

Recondition Hydraulic Oil Filter

Group 20: Rockshaft (7420, 7520)

Other Material

Repair specifications

Rockshaft — Remove And Install Electronic Control Unit

Hitch — Remove And Install Position Sensor And Toothed Segment

Hitch — Remove And Install Lift Shaft

Hitch — Remove Lift Shaft Cylinders

Hitch — Repair Lift Cylinder

Hitch — Installing the lift cylinders

Hitch — Remove And Install Draft Load Potentiometer And Draft Link Support

Group 20A: Rockshaft (7220, 7320)

Special or Essential Tools

Self-Manufactured Special Tools

Other Material

Specifications

Rockshaft — Remove And Install Electronic Control Unit

Rockshaft — Remove And Install Position Sensor And Toothed Segment

Rockshaft — Remove And Install Rockshaft

Rockshaft — Remove Rockshaft Cylinders

Rockshaft — Recondition Rockshaft Cylinders

Rockshaft — Installing the Rockshaft Cylinders

Rockshaft — Remove And Install Draft Sensors And Draft Link Bearing Pins

Group 25: Additional Control Units And Reception Couplings

Special Tools (Dealer Fabricated)

Other Material

Repair Specifications

Recondition Selective Control Valves And Couplers — General Instructions On Safety And Reconditioning

SCV Identification

Install Shuttle Valves

Remove Selective Control Valves

Series 100 Selective Control Valves — Repair

Series 200/300 Selective Control Valves (Mechanically Actuated) — Replace 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

Install Selective Control Valves

Selective Control Valves — Install Endplate

Selective Control Valves — Recondition Couplers

Group 30: Independent Control Valve

Other Material

Specifications

Remove Independent Control Valve (ICV)

Recondition Independent Control Valve

Independent Control Valve — Recondition Inlet Plate

Assemble Independent Control Valve

Install Independent Control Valve

Section 80: Miscellaneous

Group 00: Remove And Install Components

Special Tools

Dealer-Fabricated Special Tools

Repair specifications

Remove Main Frame

Install Main Frame

Remove Front Wheel Drive Axle

Install Front-Wheel Drive Axle

Remove FWD Axle With TLS

Install Front-Wheel Drive Axle With TLS

Remove Front Axle Support

Install Front Axle Support

Group 05: Main Frame (7420, 7520)

Repair specifications

Repair Main Frame

Group 80A: Main Frame (7220, 7320)

Removing Main Frame

Installing Main Frame

Group 10: Front And Rear Wheels

Special tools

Repair Specifications

Removing the Front and Rear Wheels

Install Front And Rear Wheels

Group 20: Axle Suspension Of TLS Front Wheel Drive Axle

Special or Essential Tools

Other material

Repair Specifications

Relieving Pressure in the Hydraulic System

Remove/Install Oscillation Limiter

Remove Panhard Link

Install Panhard Link

Remove And Install Sensor Rod

Remove Position Sensor

Recondition Position Sensor

Install Position Sensor

Remove Hydraulic Cylinder

Repair Hydraulic Cylinder

Installing Hydraulic Cylinder

Remove Control Valve Block

Recondition Control Valve Block Valves

Installing the Control Valve Block

Remove Accumulator

Recondition Accumulator

Install Accumulator

Remove And Repair Bearing Support

Installing the bearing support

Section 90: Operator's Cab

Group 00: Installing And Removing Components

Special Or Essential Tools

Dealer-Manufactured Special Tools

Repair specifications

Tilt Operator's Cab Upward

Tilt Operator's Cab Downward

Remove Operator's Cab

Install Operator's Cab

Check And Adjust Shift Units

Group 05: Controls And Instruments

Replace Bulbs On Instrument Unit

Removing Control Unit

Removing Control Unit for the Lighting System

Replace Control Unit (BCU)

Replace Control Unit (SFA)

Replace Control Unit (SIC)

Replace Control Unit (ECU)

Replace Control Unit (UIC/PLC)

Replace Terminating Bus Resistors

Replace Performance Monitor (PRF)

Replace Instrument Unit (BIF)

Group 10: Air Conditioning System

Essential or Recommended Tools

Other Material

Service Parts Kits

Specifications

Hose and Tubing O-Ring Connection Torques

Air Conditioning System—Diagram

Air Conditioning System Fitting—Reference Chart

Discharge Air Conditioning System

Remove and Install Compressor

Test Volumetric Efficiency

Test Shaft Seal Leakage

Disassemble and Assemble Compressor Clutch

Check Clutch Hub Clearance

Inspect Compressor Manifold

Inspect Compressor Thermal Bypass Valve

Disassemble, Inspect, and Assemble Compressor

Remove and Install Compressor Relief Valve

Replace Receiver-Dryer

Leak Test Condenser

Leak Test Evaporator

Remove and Install Expansion Valve

Flushing, Purging, and Evacuating Information

Flush Air Conditioning System

Purge Air Conditioning System

Evacuate 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

Charge Air Conditioning System

Removing and Installing the Thermostat Switch

Adjusting Thermostat Switch Bowden Cables

Removing and Installing the High/Low Pressure Switch

Group 15: Heating System

Removal and Installation of Components

Group 20: Seats

Repair Specifications

Comfort seat MSG85

Air Comfort Seat MSG95, Lower Section

Exploded view of the passenger seat

Command Arm Repair

Group 25: Operator's Cab

Remove Cab Frame

Cab Mounting Torques

Removing the Outer Roof

Remove And Install Windshield

Remove And Install Rear Window

Installing Door Lock

Adjusting Window Contact Pressure

Operator's Cab Door Removal And Installation

Roller Sun-Visor Removal and Installation

Removing Inner Roof Trim

Group 30: Components Of The Electronic Hitch Control

Disconnecting electrical circuits

Service Information

Replacing Control Unit (BCU)

Replacing The Operation Unit

Group 35: Cab Suspension

Important Instructions

Specifications

Relieving Hydraulic System Pressure

Installing and Removing the Cab Suspension Shields

Removing and Installing the Sensor Rod

Adjusting the Sensor Rod

Removing the Position Sensor

Reconditioning the Position Sensor

Installing the Position Sensor

Removing the Accumulator

Reconditioning the Accumulator

Installing the Accumulator

Removing Hydraulic Cylinder

Installing Hydraulic Cylinder

Removing the Control Valve Block

Reconditioning the Valves in the Control Valve Block

Installing the Control Valve Block

Panhard Link Removal and Installation

Bleeding Cab Suspension Hydraulic Cylinders

Section 99: Special tools (dealer- fabricated)

Group 05: Special tools (dealer- fabricated)

Adapter Strut

Holding Device

Adapter

Suspension Eyes For Operator's Cab

Holding Device

DFRW79—Piston Holding Tool

DFRW139—Evaporator Flushing Block

Socket Wrench Insert

Driver

DFRW29—Final Drive Housing Adapter

DFRW164—Axle Adjusting Tool

Bushing

Socket Wrench Insert

Special Wrench

Installation Tool

Tube

Unlocking Device

Suspension Device

DFRW185—580 mm Precision Bridge Tool

DFRW186— 70 mm Parallel Blocks

DFRW187—285 mm Precision Bridge Tool

John Deere Tractors 7220, 7320, 7420, 7420 Hi-Crop, 7520 2-Wheel Drive Repair Service Manual (TM2070)