Komatsu PC78US-8 Excavator Service Manual

Komatsu PC78US-8 Excavator Service Manual


Service Repair Manual of 1016 Pages for Komatsu Excavator PC78US-8

Categories: ,


Komatsu PC78US-8 Excavator Service Manual

Manual for Komatsu Excavator PC78US-8
Language: English
Publication: SEN04543-10

The Komatsu PC78US-8 Service Manual consist of 1016 Pages

The Manual is divided into major sections covering various components of the machine.

Table of Content of the Komatsu Excavator PC78US-8 Manual:

00 Index and foreword
01 Specification
10 Structure, function and maintenance standard
20 Standard value table
30 Testing and adjusting
40 Troubleshooting
50 Disassembly and assembly
90 Diagrams and drawings

This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts.

This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.

This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating Problems to Causes are also mention in this section.

KOMATSU Excavator PC78US-8

This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.

When raising heavy components, use a hoist or crane. Check that the wire rope, chains and hooks are free from damage.
Always use lifting equipment which has ample capacity. Install the lifting equipment at the correct places. Use a hoist or crane and operate slowly to prevent the component from hitting any other part. Do not work with any part still raised by the hoist or crane.

If you are doing disassembly and maintenance work in the field please refer to the guideline as per the PC78US-8 manual.
If disassembly or maintenance work is carried out on hydraulic equipment in the field, there is danger of dust entering the equipment. It is also difficult to check the performance after repairs, so it is desirable to use unit exchange.
Disassembly and maintenance of hydraulic equipment should be carried out in a specially prepared dustproof workshop, and the performance should be checked with special test equipment.


There are no reviews yet.

Be the first to review “Komatsu PC78US-8 Excavator Service Manual”

You've just added this product to the cart: