Assemblying And Connecting The Equipment - Komatsu PC27R-8 Operation & Maintenance Manual

6.3.3 ASSEMBLYING AND CONNECTING THE EQUIPMENT

DANGER
The machine must be parked on a level surface, with the equipment resting on the ground.
When the coupling pins are removed or installed, chips may come off; always wear gloves, safety gog-
gles and helmet.
The change of the equipment must be carried out by two operators, who must decide together the
words and signals to be used during operations.
Do not use your fingers to center the holes, since they may be injured or even cut.
Release the residual pressure that may be present in the pipes completely.
For the installation of the equipment it is necessary to connect
the mechanical constraints of the bucket as described in "3.13.4
CHANGING THE BUCKET" and to carry out the hydraulic con-
nections using the pipes provided.
After connecting the mechanical constraints, carry out the hy-
draulic connections by proceeding as follows:
1 - Stop the engine and move the hydraulic controls in all direc-
tions, in order to completely release the residual pressures
present in the circuits of the machine.
2 - Press the optional equipment control pedal to release the re-
sidual pressure present in the delivery pipe.
3 - Slowly loosen the hydraulic oil filling cap, in such a way as to
release the residual pressure from the tank.
4 - Remove the sealing plugs of the machine rapid couplings
and of the equipment rapid couplings.
5 - Connect the right (1) and left (2) pipes. The rapid couplings
must be in compliance with the ISO 7241-1 series "B" stand-
ard.
CAUTION
When connecting the pipes, take care to prevent any im-
purities from getting into them.
6 - Start the machine and perform several manoeuvres with the
equipment control pedal, in order to check the seals.
DANGER
Always wear thick gloves and safety goggles during this
check.
To check the system for leaks, use a piece of cardboard or
a wooden board.
ARRANGEMENT FOR THE OPERATION OF OPTIONAL EQUIPMENT
1
2
1/2" GAS
SX
DX
1/2" GAS
2
RWA07950
1
RWA07960
193