Installation - Komatsu PC20R-8 Shop Manual

REMOVAL AND INSTALLATION
INSTALLATION OF THE BOOM CYLINDER
To install, reverse the removal procedure.
.
H Check the centering and the smooth movement of the
protection (1) on the shoes (7).
Shoes and guides: ASL800050
H Adjust the shim thickness so that the clearance be-
tween cylinder (4) and swing bracket (9) is below 1
mm.
When aligning the positions between the hole and
the pin, turn the engine over at low idling.
Do not insert fingers in the holes to check alignment.
H Adjust the shim thickness so that the clearance be-
tween cylinder (4) and boom (10) is below 1 mm.
Internal bushings: ASL800050
1 - Start the engine and bleed the air from the cylinder.
(For details, see «20. CONTROLS AND ADJUST-
MENTS»).
H After bleeding the air, check the level of oil in the
tank.
30-58
BOOM CYLINDER
8
1
MAX.1mm
MAX.1mm
PC20R-8 PC27R-8
RKPA3540
4
9
RKP06270
10
4
RKP06280