Komatsu PC228US-2, PC228USLC-1 and PC228USLC-2 Excavator Manual

Komatsu PC228US-2, PC228USLC-1 and PC228USLC-2 Excavator Manual

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Service Repair Manual of 661 Pages for Komatsu Excavator PC228US-2, PC228USLC-1 and PC228USLC-2

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Description

Komatsu PC228US-2, PC228USLC-1 and PC228USLC-2 Excavator Service Manual

Manual for Komatsu ExcavatorPC228US-2, PC228USLC-1 and PC228USLC-2
Language: English
Publication: SEBM015903

The Komatsu PC228US-2, PC228USLC-1 and PC228USLC-2 Excavator Service Manual contains 661 Pages

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

Table of Content of the Komatsu Excavator PC228US-2, PC228USLC-1 and PC228USLC-2 Manual:

01 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
10 STRUCTURE AND FUNCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
20 TESTING, ADJUSTING AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 PC228US-2, PC228USLC-1 and PC228USLC-2

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.

PC228US-2, PC228USLC-1 and PC228USLC-2 MANUAL EXTRACT – DISASSEMBLY OF BRAKE VALVE

Komatsu Pc228us-2, Pc228uslc-1 And Pc228uslc-2 Excavator Manual1. Removal of spool
1) Remove plug (324) from rear flange (301).
Remove O-ring (336) from plug (324).
– Loosen the plug when the motor is on the turning work table for the ease of work.
– Do not reuse removed O-ring (336).
– Necessary tools
• Socket wrench
• Wrench adapter, socket of size 41 2) Remove 2 springs (328), 2 stoppers (325), and spool (323) from rear flange (301).
– Take care not to damage the periphery of spool (323) and sliding surface of rear flange (301).
– Slant rear flange (301) with either plug port down, and spool (323) slides down.
Hold the end of the spool and take it out.

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