John Deere 644 P-Tier, Gen-A 4WD Loader Repair Service Manual (S.N L_10283 – )

Product Overview

This comprehensive service manual for the John Deere 644 P-Tier, Gen-A 4WD Loader is essential for technicians and operators alike. Available in English and provided in a digital PDF format, the manuals cover all necessary maintenance, repair, and operation tests. Publications TM14499X019 and TM14500X019 cover this model with serial numbers from L_10283 onwards. For more details on this loader model, visit the Loader page.

Key Features

• Detailed Repair Service Manual with 426 pages (TM14500X019)
• Comprehensive Operation and Test Service Manual with 1372 pages (TM14499X019)
• Information on essential tools, service kits, and specifications
• A complete guide to torque values, wear tolerances, and service procedures

Benefits

• Provides in-depth maintenance and repair information to ensure the loader’s longevity
• Includes diagnostics for routine failure identification, facilitating quick repairs
• Organized in sections for easy access to specific machine components
• Helps reduce downtime by offering detailed service instructions and tests

Usage Recommendations

• Refer to this manual for detailed step-by-step repair instructions
• Ensure understanding of safety measures and torque values before proceeding with repairs
• Use the appropriate metric or inch tools as specified for fasteners
• Pay attention to the operation and test sections to quickly diagnose and address issues

Table of Contents

Repair Manual

The repair manual is structured as follows:

• Section 00u2014General Information
  • Group 0001u2014Safety
  • Group 0003u2014Torque Values
• Section 01u2014Wheels
  • Group 0110u2014Powered Wheels and Fastenings
• Section 02u2014Axles and Suspension Systems
  • Group 0200u2014Removal and Installation
  • Group 0225u2014Input Drive Shafts and U-Joints
  • Group 0250u2014Axle Shaft, Bearings, and Reduction Gears
  • Group 0260u2014Hydraulic System

Operation and Test Manual

This manual includes sections on operational procedures and tests:

• Section 9000u2014General Information
  • Group 01u2014Safety
• Section 9001u2014Diagnostic Trouble Codes (DTCs)
  • Group 10u2014Engine Control Unit (ECU) Diagnostic Trouble Codes

Important Note: It is crucial to carefully read this manual to understand the correct operation and service procedures for the loader, preventing personal injury or equipment damage.

Measurement Note: Measurements are provided in both metric and customary U.S. units. Use the specified replacement parts and tools, specifying the correct type of fasteners.

The John Deere 644 P-Tier, Gen-A Loader technical manuals are divided into two main sections: Repair and Operation and Tests. The repair manuals guide the repair of components, while the operation and test manuals assist in identifying routine failures efficiently. Information is categorized in groups, each detailing the necessary tools, kits, and values for specific tasks.

These technical manuals are concise, job-focused guides providing essential information for diagnosis, analysis, testing, and repair.