Komatsu PC14R-3 PC14R-3HS PC16R-3 PC16R-3HS Hydraulic Excavator Shop Manual WEBM007801 PDF DOWNLOAD

Page 269

REMOVAL AND INSTALLATION

WORKING EQUIPMENT

WORKING EQUIPMENT Removal

k Fully extend the arm and open the bucket completely. Lower the equipment until it rests on the ground.

2

1 -Remove the protection (1) and the relative sliding shoes. [*1] 2 -Stop the engine, release all the pressure in the cylinder and de-pressurize the hydraulic system by moving the PPC valve lever several times. 3 -Remove the pin (2).

1

[*2]

a Note down position of any shims and direction of assembly.

RKPB9410

4 -Lower the cylinder (3) until it rests on a stand “A”. 5 -Start the engine to retract the piston.

3

[*3]

6 -Stop the engine and release the residual hydraulic pressures. (For details, see "20 CONTROLS AND ADJUSTMENTS").

A

RKPB8971

7 -Disconnect two arm hoses (4) (A -C yellow) and two bucket hoses (5) (A-C green) from the control valve; plug the hoses and cylinder holes to prevent contamination.

4

6

5

RKPB9141

Only if equipped: Disconnect the optional equipment delivery hose (6) from the control valve and disconnect hose (8) from block (7).

8

a Plug the tubes and fittings to prevent entry of impurities. a Mark the hoses to avoid exchanging them during reinstallation.

7 PC14R-3 PC16R-3

RKPB9560

30-109


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