Komatsu HM350-1 Dump Truck Service Manual

Table of Contents

01 GENERAL ………………………………………………………………………………01-1
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD …….10-1
20 TESTING AND ADJUSTMENT………………………………………………….20-1
30 DISASSEMBLY AND ASSEMBLY…………………………………………….30-1
90 OTHERS…………………………………………………………………………………90-1

To maintain the performance of the machine over a long period, and to prevent failures or other troubles before they occur, correct operation, maintenance and inspection, troubleshooting, and repairs must be carried out. This section deals particularly with correct repair procedures for mechatronics and is aimed at improving the quality of repairs. For this purpose, it gives sections on “Handling electric equipment” and “Handling hydraulic equipment” (particularly gear oil and hydraulic oil).

1. POINTS TO REMEMBER WHEN HANDLING ELECTRIC EQUIPMENT
1) Handling wiring harnesses and connectors Wiring harnesses consist of wiring connecting one component to another component, connectors used for connecting and disconnecting one wire from another wire, and protectors or tubes used for protecting the wiring.

Compared with other electrical components fitted in boxes or cases, wiring harnesses are more likely to be affected by the direct effects of rain, water, heat, or vibration. Furthermore, during inspection and repair operations, they are frequently removed and installed again, so they are likely to suffer deformation or damage. For
this reason, it is necessary to be extremely careful when handling wiring harnesses.