Removal - Komatsu PC20R-8 Shop Manual

REMOVAL AND INSTALLATION
REMOVAL OF THE SWIVEL JOINT
Lower the working equipment until it is resting on the
ground, and stop the engine.
Release all residual pressures from all circuits and
from the tank. (For details, see «20. CONTROLS
AND ADJUSTMENTS»).
1 - Remove the floor-mat complete.
(For details, see «REMOVAL OF THE PLATFORM»).
2 - Disconnect the upper tubes (3) from the swivel joint
(1) (N . 8).
o
H Mark the tubes to avoid exchanging them during
re-assembly.
H Plug the tubes to prevent entry of impurities.
3 - Remove the protective cover (2) from the lower track-
frame.
4 - Disconnect the tubes (3) from the swivel joint (4).
H Mark the tubes to avoid exchanging them during
re-assembly.
H Plug the tubes to prevent entry of impurities.
5 - Loosen the screws (5) and remove the swivel joint (4).
INSTALLATION OF SWIVEL JOINT
To install, reverse the removal procedure.
.
H Make sure that the swivel joint is correctly positioned
and that the rotor pin is engaged properly in the brack-
et.
Bracket screws: 85 Nm
1 - Start the engine to circulate the oil, bleed air from the
lower circuits and check that tubes are leaktight.
2 - Stop the engine and check the level of the tank.
3 - Pressurise the tank.
30-42
6
4
3
SWIVEL JOINT
1
RKPA3340
2
RKZA3350
5
RKPA3360
PC20R-8 PC27R-8