Komatsu PC88MR-6 Excavator Service Manual

Komatsu PC88MR-6 Excavator Service Manual

$33.00

Service Manual of 328 Pages for Komatsu Excavator PC88MR-6

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Description

Komatsu PC88MR-6 Excavator Service Manual

Manual for Komatsu Excavator PC88MR-6
Language: English
Publication: WEBM007200
Format: PDF

Komatsu PC88MR-6 Excavator Service Manual consist of 328 Pages

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

Table of Content of the Komatsu Excavator PC88MR-6 Manual:

10. STRUCTURE AND FUNCTION……………………………………………………………………. 10-1
20. TESTING AND ADJUSTING ……………………………………………………………………….. 20-1
30. DISASSEMBLY AND ASSEMBLY ………………………………………………………………. 30-1
90. OTHER………………………………………………………………………………………………………. 90-1

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

STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
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.


TESTING, ADJUSTING AND 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.


DISASSEMBLY AND ASSEMBLY
KOMATSU Excavator PC88MR-6

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.

ADJUSTING PC VALVE
Komatsu PC88MR-6

a If the engine speed drops when a pressure or load increase is demanded, or if the attachment speed is low when the engine speed, delivery pressure, and LS differential pressure is normal, then the PC valve (1) needs adjusting. To adjust PC valve, use the following procedure.

a Before loosening nut (2), mark the positions (a) between the adjusting nut and screw (3).

1 -Loosen the nut (2) and adjust the pump torque absorption with screw (3).
a The PC valve is an eccentric design valve, so the value of torque increase will never be known, whatever direction the screw is turned (3). On account of that, turn the screw (3) while at the same time checking the procedure on the engine speed monitor.
2 -Once the adjustment is completed, retain the position of the screw (3) and tighten the nut (2).

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