Komatsu Utility F50003, Operation & Maintenance Manual

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CONFIGURATION FOR THE USE OF THE CLAMSHELL BUCKET
272
6.9.2 INSTALLING THE CLAMSHELL
BUCKET
WARNING
q
The machine must be parked on a level surface, with the
front equipment resting on the ground.
q
When the coupling pins are removed or installed, chips
may come off; always use gloves, goggles and helmet.
q
The change of the equipment must be carried out by two
operators, who must decide together the words and sig-
nals to be used during work.
q
Avoid using your fingers to align the holes, since they
may be injured or even cut off.
q
Completely release the residual pressure that may be
present in the pipes.
To install the revolving clamshell bucket, proceed as follows:
1 - Remove the standard bucket from the backhoe (see
"3.13.4.1 CHANGING THE BACKHOE BUCKET").
2 - Retract the bucket control piston completely.
3 - Connect the clamshell bucket to the arm.
4 - Stop the machine and move the controls in all directions
to release the residual pressure.
IMPORTANT
q
If the machine is equipped with backhoe servo controls,
to eliminate the residual pressure proceed as follows:
1 - With the engine at rest, turn the ignition key to posi-
tion « » .
2 - Press the servo control locking button and make
sure that the LED is off (release position) (see "3.3.2
pos. 12 - SERVO CONTROL LOCKING BUTTON").
3 - Shift the backhoe control levers more than once and
press the clamshell bucket swing buttons.
4 - Turn the ignition key to position « » .
5 - Mechanically lock the standard bucket thrust lever, in
such a way as to lock the piston at the end of stroke.
RKA14490
RKA14500
RWA01960
RWA02000