Komatsu D155AX-5 Bulldozer Service Manual

Product Overview

This comprehensive service manual is an essential resource for maintaining and troubleshooting the Komatsu D155AX-5 bulldozer. It provides detailed instructions and insights necessary for servicemen to understand and address various mechanical and operational challenges.

Key Features

• General Instructions: Comprehensive guidance on procedures common across sections such as “Disassembly and Assembly”, “Testing and Adjustments”, and “Troubleshooting”. This knowledge is crucial for effective service work.
• Structure and Function: Detailed explanations with illustrations of constituent parts, block diagrams, and circuit diagrams. This section also serves as a training guide for service personnel.
• Testing and Adjustments: Step-by-step procedures for performing necessary tests and adjustments, complete with photographs and equipment location descriptions.
• Troubleshooting: Lists common issues, their causes, and diagnostic procedures. This section encourages application of knowledge from other sections to solve unlisted issues.
• Manual Specifications: Includes standard dimensions and tolerances necessary for testing, adjustments, and repairs, emphasizing the most commonly serviced machine parts.

Benefits

• Enhances the practical understanding of service procedures essential for maintaining the bulldozer.
• Serves as a valuable training resource for new service personnel.
• Provides clear, visual aids to support diagnostic and adjustment tasks.
• Equips servicemen with knowledge to solve both common and complex issues.

Usage Recommendations

• Study the “General Instructions” thoroughly to build a strong foundational understanding.
• Utilize the “Structure and Function” section as an educational tool for staff training.
• Regularly consult the “Testing and Adjustments” and “Troubleshooting” sections during maintenance and repair work.

Removal of Fan Motor Assembly

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1. Remove the fan drive assembly. For details, see REMOVAL OF FAN DRIVE ASSEMBLY.
2. Unscrew the mounting bolts and lock plate (1).
3. Detach nut (2).
4. Utilize puller 1 to detach the fan (3).
5. Remove the 4 mounting bolts and the fan motor assembly (4).