John Deere 644J 724J 4WD Loader Workshop Repair Service Manual (TM2076) PDF - MJODTM2076.zip
This is the full factory-level service and repair guide covering the John Deere 644J and 724J 4WD Loaders (724J units with serial numbers prior to 611231 and prior to 611218). Inside, you'll find everything needed to keep up maintenance, perform repairs, and rebuild these machines the way trained technicians do.
The John Deere 644J and 724J 4WD Loader workshop service and repair manual contains:
* 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— )