John Deere 644K Hybrid 4WD Loader Service Manual

Product Overview

The John Deere 644K Hybrid 4WD Loader Service Manual is a comprehensive guide for operating, testing, and repairing your loader with serial numbers after E651322. Available in English and provided in PDF format, this manual, which consists of TM12707 and TM12708 publications, addresses models with a specified product identification number (PIN: After 1DW644K_E651322-). For more details about applicable loader models, visit the official site.

Key Features

• Service Manual: 500 pages
• Operation and Test Manual: 1878 pages
• Divided into easy-to-follow sections and groups
• Includes safety information and torque values
• Comprehensive coverage of axles, hydraulics, transmission, and more

Benefits

• Clear instructions for maintenance and repairs enhance safety and performance.
• Diagnostic trouble codes help identify issues quickly and efficiently.
• Technical Manuals provide essential information for on-the-job guidance.
• Includes both metric and U.S. customary units for measurements.

Usage Recommendations

• Carefully read the manual to operate and service your loader correctly.
• Use only correct replacement parts and fasteners; specific wrenches may be required.
• Consult the manual’s organized sections for tools, specifications, and necessary materials.
• Utilize the summaries and instructions to troubleshoot and repair efficiently.

Additional Information

The manual is divided into two parts: Repair and Operation and Tests. The repair sections provide component repair instructions, while the operation and tests sections address routine failures. The manual is organized in groups detailing essential tools, specifications, and service parts kits needed for the job.

The product identification number (PIN) plate is located on the left side of the machine in front of the steps. Each machine has a 17-character PIN. For visual reference, see the image of the PIN plate.