John Deere 844K Series II 4WD Engine Loader Service Manual

Product Overview

The John Deere 844K Series II 4WD Loader Service Manual is an essential guide for the maintenance and repair of John Deere loaders, specific to the serial number range 642008 to 664095. It covers engines 6135HDW01 (T3) and 6135HDW03 (S2), ensuring operators have the most accurate and comprehensive information. Available in PDF format, this manual is published under TM12120 and TM12118.

Language: English
Format: PDF

For more details on applicable models, please visit the
Loader Page.

Key Features

• Service Manual: Detailed instructions for repair and maintenance of the 844K Series II Loader.
• Operation and Test Manual: Comprehensive guide covering operational checkouts and diagnostics.
• Extensive Coverage: Detailed sections covering various systems such as wheels, transmission, engine, and more.
• Document Length: Service Manual – 572 pages, Operation and Test Manual – 1458 pages.

Benefits

• Comprehensive Details: Provides intricate details on the functioning and troubleshooting of the loader.
• Efficient Repairs: Helps quickly identify and resolve routine failures, minimizing downtime.
• Safety Assurance: Includes safety precautions to prevent injury and equipment damage.
• Versatile Measurements: Lists both metric and customary U.S. unit equivalents for precision repairs.

Usage Recommendations

• Read the manual carefully to understand loader operation fully and avoid personal or equipment injury.
• Use prescribed replacement parts and fasteners, adhering to the specified measurements.
• Organize information by component groups to streamline maintenance tasks.

Manual Contents

Repair Manual

• General Information: Safety and Torque Values
• Wheels: Powered Wheels and Fasteners
• Axles and Suspension: Removal, Installation, and Hydraulic Systems
• Transmission: Gears, Shafts, Bearings, and Power Shift Clutch
• Engine and Auxiliary Systems: Cold Start Aids, Cooling, and Fuel Systems
• Service and Park Brakes
• Electrical System: Removal and Installation
• Operator’s Station: Enclosures, Seating, and HVAC
• Loader Components: Bucket, Frames, and Hydraulic System

Operation and Test Manual

• Diagnostic Trouble Codes for ECU, TCU, and more
• Operational Checkouts
• System Diagrams and Tests for Engine, Electrical, and Power Train

The product identification number (PIN) plate is located on the left side in front of the steps. Each machine is uniquely identified by a 17-character PIN.