Komatsu D61EXi-24, D61PXi-24 Dozer Service Manual

Table of Contents

• Index and foreword
• Specification
• Structure, function and maintenance standard
• Standard value table
• Testing and adjusting
• Troubleshooting
• Disassembly and assembly
• Maintenance Standard
• Appendix
• Diagrams and drawings

Proper service and repair are extremely important for safe machine operation. The service and repair techniques recommended by Komatsu and described in this manual are both effective and safe. Some of these techniques require the use of tools specially designed by Komatsu for the specific purpose.

Manual Extract – Loaded Diagnostics Operation To Clear Failure Code

Perform the procedure below to check that the repair is completed. (Make sure that this failure code is cleared after this procedure.)
1. Turn the starting switch from OFF position to ON position.
2. Start the engine and run it at low idle speed for 15 minutes.
If the failure code is cleared, repair work is complete. Otherwise, perform the following: NOTICE
If failure code is not cleared after preceding steps 1 and 2 are performed, following temperature requirements are included in clearing condition. Steps 4 and 5 are required to satisfy temperature requirements.
• KDOC outlet temperature 200 °C or above
• KDPF outlet temperature 200 °C or above

3. Display KDOC outlet temperature and KDPF outlet temperature with monitoring function.
4. Perform continuously the blade RAISE relief for 15 minutes with fuel control dial at MAX (high idle) position.
5. When the KDOC outlet temperature or KDPF outlet temperature does not exceed 200 °C, perform “Loaded Diagnostics Operation To Clear failure Code” [CA1883].
6. If the failure code is cleared, repair work is complete.