Komatsu PC12R-8, Руководство по эксплуатации и техническому обслуживанию

Страница: 207 / 208

205
ARRANGEMENT FOR THE INSTALLATION OF THE DEMOLITION HAMMER (BREAKER)
6.2.3 INSTALLING AND REMOVING THE DEMOLITION HAMMER
6.2.3.1 INSTALLING THE HAMMER
DANGER
•
The machine must be parked on a level surface, with the equipment resting on the ground.
•
For the installation, the hammer must be positioned horizontally, with the bit directed towards the ma-
chine.
•
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 demolition hammer 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 connections using the pipes
provided. After connecting the mechanical constraints, carry out the hydraulic connections by proceeding as fol-
lows:
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 hammer control pedal to release the residual pres-
sure present in the hammer 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 rapid couplings of both the
machine and the hammer.
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 raise the demolition hammer position-
ing it vertically.
7 - Stop the machine again and lubricate the joints (See “4.5 LU-
BRICATION”) and the hammer (see the specific operation
and maintenance manual).
8 - Before starting work, check the tightness of the circuit.
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.
RWA07950
2
1
RWA07960
2
1/2" GAS
1/2" GAS
1
SX
DX