Complete service repair manual for John Deere 4WD Loader 644J, 724J (SN. before 611231), 724J (SN. before 611218), with all the workshop information to maintain, service, repair, and rebuild like professional mechanics.

John Deere 4WD Loaders 644J, 724J workshop service repair manual 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.

TM2076 - John Deere 644J, 724J 4WD Loader Technical Manual - Repair.PDF
TM2076 - John Deere 644J, 724J 4WD Loader Technical Manual - Repair.EPUB

Total Pages: 635 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
  Foreword
   Technical Information Feedback Form
   General Information
      Safety Information
   Wheels
      Powered Wheels And Fasteners
   Axles And Suspension Systems
      Removal And Installation
      Input Drive Shafts And U-Joints
      Axle Shaft, Bearings, And Reduction Gears
      Hydraulic System
   Transmission
      Removal And Installation
      Gears, Shafts, Bearings And Power Shift Clutch
      Hydraulic System
   Engine
      Removal And Installation
   Engine Auxiliary Systems
      Cold Weather Starting Aids
      Cooling System
      Speed Controls
      Intake System
      External Exhaust System
      External Fuel Supply Systems
   Dampener Drive
      Elements
   Steering System
      Hydraulic System
   Service Brakes
      Active Elements
      Hydraulic System
   Park Brake
      Active Elements
      Hydraulic System
   Frame Or Supporting Structure
      Frame Installation
      Frame Bottom Guards
      Chassis Weights
   Operator’s Station
      Removal And Installation
      Operator Enclosure
      Heating And Air Conditioning
   Sheet Metal And Styling
      Hood Or Engine Enclosure
      Grille And Grille Housing
   Loader
      Bucket
      Frames
      Hydraulic System
   Dealer Fabricated Tools

tm2076 - 644J ( -611231)and 724J ( -611218) Loader

Table of Contents

Foreword

Technical Information Feedback Form

Section 00: General Information

Group 0001: Safety Information

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

Avoid Unauthorized Machine Modifications

Add Cab Guarding For Special Uses

Inspect Machine

Stay Clear of Moving Parts

Avoid High-Pressure Oils

Beware of Exhaust Fumes

Prevent Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Dispose of Waste Properly

Prepare for Emergencies

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Work Site Hazards

Use Special Care When Operating Loader

Keep Riders Off Machine

Avoid Backover Accidents

Avoid Machine Tip Over

Operating on Slopes

Operating or Traveling On Public Roads

Inspect and Maintain ROPS

Add and Operate Attachments Safely

Park And Prepare For Service Safely

Service Cooling System Safely

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Group 0003: Torque Values

Metric Bolt and Cap Screw Torque Values

Additional Metric Cap Screw Torque Values

Unified Inch Bolt and Cap Screw Torque Values

Service Recommendations for 37° Flare and 30° Cone Seat Connectors

Service Recommendations for O-Ring Boss Fittings

O-Ring Boss Fittings in Aluminum Housing Service Recommendations—Excavators

Service Recommendations for Flared Connections—Straight or Tapered Threads

Service Recommendations for Flat Face O-Ring Seal Fittings

O-Ring Face Seal Fittings With SAE Inch Hex Nut and Stud End for High-Pressure Service Recommendations

O-Ring Face Seal Fittings With Metric Hex Nut and Stud End for Standard Pressure Service Recommendations

O-Ring Face Seal Fittings With Metric Hex Nut and Stud End for High-Pressure Service Recommendations

Service Recommendations for Metric Series Four Bolt Flange Fitting

Service Recommendations For Inch Series Four Bolt Flange Fittings

Inch Series Four Bolt Flange Fitting for High-Pressure Service Recommendations

Service Recommendations For Non-Restricted Banjo (Adjustable) Fittings

Service Recommendations For O-Ring Boss Fittings With Shoulder

Metric 24° O-Ring Seal DIN 20078 Service Recommendations

Section 01: Wheels

Group 0110: Powered Wheels And Fasteners

Wheel Remove and Install

Tire Remove and Install

Section 02: Axles And Suspension Systems

Group 0200: Removal And Installation

Front Axle And Differential Remove and Install

Rear Axle And Differential Remove and Install

Axle Oscillating Supports Disassemble and Assemble

Group 0225: Input Drive Shafts And U-Joints

Universal Joint And Universal Drive Shaft Remove and Install

Universal Joint And Universal Drive Shaft Disassemble and Assemble

Group 0250: Axle Shaft, Bearings, And Reduction Gears

TEAMMATE TEAMMATE is a trademark of Deere & Company Axles

Group 0260: Hydraulic System

Differential Lock Solenoid Valve Remove And Install

Section 03: Transmission

Group 0300: Removal And Installation

Transmission Remove And Install

Group 0350: Gears, Shafts, Bearings And Power Shift Clutch

Torque Converter Remove and Install (Engine Removed)

Torque Converter and Housing Remove and Install

Clutches and Input and Output Shafts Remove and Install

Clutch Pack KV and KR Disassemble

Clutch Pack KV and KR Assemble

Clutch Pack K1, K2, and K3 Disassemble

Clutch Pack K1, K2, and K3 Assemble

Clutch Pack K4 Disassemble

Clutch Pack K4 Assemble

Input Shaft Disassemble and Assemble

Group 0360: Hydraulic System

Transmission Pump Remove and Install

Converter Minimum Pressure Regulator Valve Remove and Install

Transmission Control Valve Remove and Install

Transmission Control Valve Disassemble and Assemble

Converter Relief Valve Repair

Transmission Internal Oil Pipes and Tubes Remove and Install

Section 04: Engine

Group 0400: Removal And Installation

POWERTECH POWERTECH is a trademark of Deere & Company 8.1 L (6081) John Deere Engines

Engine Remove and Install

Section 05: Engine Auxiliary Systems

Group 0505: Cold Weather Starting Aids

Start Aid Assembly Remove And Install

Engine Coolant Heater Remove And Install

Group 0510: Cooling System

Serpentine Belt Remove and Install

Fan And Fan Drive Remove And Install

Radiator, Oil, And Air Cooler Remove and Install

Group 0515: Speed Controls

Speed Control Linkage Remove And Install

Group 0520: Intake System

Air Cleaner Remove And Install

Group 0530: External Exhaust System

Muffler Remove and Install

Group 0560: External Fuel Supply Systems

Fuel Tank Remove And Install

Section 07: Dampener Drive

Group 0752: Elements

Dampener Remove And Install

Section 09: Steering System

Group 0960: Hydraulic System

Steering Valve Remove and Install

Steering Valve Disassemble and Assemble

Steering Column Remove and Install

Steering Cylinder Remove And Install

Remove And Install Steering Cylinder Bushings

Section 10: Service Brakes

Group 1011: Active Elements

Inspect External Service Brakes

Brake Assembly Remove And Install

Group 1060: Hydraulic System

Brake Valve Remove And Install

Brake Accumulator Remove and Install

Section 11: Park Brake

Group 1111: Active Elements

Park Brake Remove and Install

Park Brake Disassemble and Assemble

Group 1160: Hydraulic System

Park Brake Release Solenoid Valve Remove And Install

Park Brake Pressure Switch Remove And Install

Section 17: Frame Or Supporting Structure

Group 1740: Frame Installation

Separate Engine and Loader Frame

Remove and Install Upper Pivot Bearing and Seals

Lower Pivot Bearing and Seals Remove and Install

Group 1746: Frame Bottom Guards

Fuel Tank Guard Remove And Install

Front Axle Guard Remove And Install

Transmission Bottom Guard Remove And Install

Group 1749: Chassis Weights

Counterweights Remove And Install

Section 18: Operator’s Station

Group 1800: Removal And Installation

Cab Remove and Install

Group 1810: Operator Enclosure

Adjust Front Windshield Wiper

Group 1830: Heating And Air Conditioning

R134a Refrigerant Cautions

R134a Compressor Oil Charge Check

R134a Compressor Oil Removal

R134a Component Oil Charge

Leak Testing

Refrigerant Hoses And Tubing Inspection

R134a Refrigerant Recovery, Recycling and Charging Station Installation Procedure

Recover R134a System

Evacuate R134a System

Charge R134a System

Air Conditioner System Cleaning Procedures

Purge Air Conditioner System

Flush Air Conditioner System

Air Conditioning Module With Heater/Evaporator Coil

Heater/Evaporator Core Remove And Install

Expansion Valve Remove And Install

Freeze Control Switch Remove And Install

Bench Test Freeze Control Switch

Remove And Install Heater Control Valve

Heater Control Valve Leak Check

Main Blower Assembly Remove And Install

Remove And Install Pressurizer Motor Assembly

Remove And Install Receiver-Dryer And Condenser

High And Low Pressure Switches Remove And Install (S.N. —590067)

A/C Binary Pressure Switch Remove and Install (S.N. 590068— )

Fresh Air Filter Remove And Install

Recirculating Air Filter Remove And Install

Compressor Remove And Install

Disassemble And Assemble Compressor Clutch—R134a

Check Clutch Hub Clearance—R134a

Inspect Compressor Manifold—R134a

Disassemble, Inspect, And Assemble Compressor—R134a

Section 19: Sheet Metal And Styling

Group 1910: Hood Or Engine Enclosure

Hood Remove And Install

Engine Side Shields Remove And Install

Group 1921: Grille And Grille Housing

Grille And Grille Housing Remove And Install

Section 31: Loader

Group 3102: Bucket

Bucket Remove And Install

Welded-On Bucket Cutting Edges Remove And Install

Bolt-On Cutting Edges And Wear Plates Remove And Install

Cracked Cutting Edge Repair

Group 3140: Frames

Loader Bucket Tilt Linkage Remove And Install

Bucket Linkage Seals And Bushings Remove And Install

Loader Boom Bushings And Seals Remove And Install

Group 3160: Hydraulic System

Hydraulic Oil Clean-Up Procedure Using Portable Filter Caddy

Hydraulic Pump Start-Up Procedure

Hydraulic Pump Remove and Install

Hydraulic Pump Disassemble and Assemble

Hydraulic Pump Control Valve Remove and Install

Hydraulic Pump Control Valve Disassemble And Assemble

Loader Control Valve Remove and Install

Loader Control Valve Disassemble and Assemble

Auxiliary Valve Section And Bucket Section Disassemble And Assemble

Boom Valve Section Disassemble And Assemble

Relief Valve Disassemble And Assemble

Bucket Circuit Relief Valve Disassemble And Assemble

Load Sense Relief Valve Disassemble and Assemble

Anti-Cavitation Relief Valve Disassemble and Assemble

Boom Cylinder Remove And Install—185 Series

Bucket Cylinder Remove And Install—185 Series

Boom Cylinder Piston Wear Ring Configuration

Boom And Bucket Cylinder Bushings And Seals Remove And Install

Loader Start-Up Procedure

Hydraulic Reservoir Remove And Install

Pilot Controller Remove and Install—Single Lever Controller (S.N. —590067)

Pilot Controller Disassemble and Assemble—Single Lever Controller (S.N. —590067)

Pilot Controller Remove and Install—Two Lever Controller (S.N. —590067)

Pilot Controller Disassemble and Assemble—Two Lever Controller (S.N. —590067)

Pilot Control Valve Remove and Install (S.N. 590068— )

Pilot Control Valve Disassemble and Assemble (S.N. 590068— )

Pressure Reducing Valve Remove and Install (S.N. —590067)

Pressure Reducing Valve Disassemble And Assemble (S.N. —590067)

Boom Down Accumulator Remove and Install (S.N. 590068— )

Pressure Reducing Valve Manifold Remove and Install (S.N. 590068— )

Pressure Reducing Valve Manifold Disassemble and Assemble (S.N. 590068— )

Ride Control Valve Remove and Install—If Equipped

Ride Control Valve Disassemble and Assemble—If Equipped

Ride Control Accumulator Remove and Install

Pin/Axle Disconnect Valve Remove and Install

Pin Disconnect Valve Disassemble and Assemble

Axle Disconnect Valve Disassemble and Assemble

Section 9900: Dealer Fabricated Tools

Group 0099: Dealer Fabricated Tools

DFT1132 Hydraulic Pump Removal And Installation Tool

DFT1149 Pre-Load Clutch Pack Compression Ring Tool

DFT1158 Torque Converter Adapter Plate

DFT1063 Lifting Bracket

DFRW20 Compressor Holding Fixture

John Deere 4WD Loaders 644J, 724J Repair Service Manual (TM2076)