Komatsu Utility PC12R-8 MISTRAL, Shop Manual

Page: 239 / 324

REMOVAL OF THE SWIVEL JOINT
Lower the working equipment untilit 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 - Take out the floor-mat (1) and remove the cab floor
(2).
2 - Disconnect the upper tubes (3) from the swiveljoint
(7 tubes for the PC12R and 8 tubes for the PC12R
with travelincrement and the PC15R).
H Mark the tubes to avoid exchanging them during
re-assembly.
If necessary, disconnect some of the tubes from
the controlvalve, after having marked them.
H Plug the tubes to prevent entry of impurities.
3 - Remove the protective cover (4) from the lower track-
frame.
4 - Disconnect the tubes (5) from the swiveljoint (6).
H Mark the tubes to avoid exchanging them during
re-assembly.
H Plug the tubes to prevent entry of impurities.
5 - Take out the screws (7) and the washers and remove
the swiveljoint (6).
H Mark the position between the joint and the frame.
INSTALLATION OF THE
SWIVEL JOINT
.
To install, reverse the removal procedure.
H Make sure that the swiveljoint is correctly positioned
and that the rotor pin is engaged properly in the brac-
ket (8).
Bracket screws: 32.2 w 3.5 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.
30-39
REMOVAL AND INSTALLATION SWIVEL JOINT
PC12R-8 PC15R-8
RKPA1090
1
2
RKPA1100
8
3
3
RKPA1110
4
RKPA1120
7
5
5 6