Komatsu Utility F50003, Operation & Maintenance Manual

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CONFIGURATION FOR THE USE OF THE HAND HYDRAULIC HAMMER
275
6.10.2 INSTALLING AND REMOVING THE
HAND HAMMER
WARNING
q
The connection and removal of the hammer must be
carried out with the machine parked on a level surface
and the equipment resting on the ground, parking brake
applied and control safety locks engaged.
q
Completely release any residual pressure from the
pipes before connecting or disconnecting the hammer.
q
If any oil has been spilled, wipe it up immediately, in or-
der to prevent the surface from getting slippery.
6.10.2.1CONNECTING THE HAND HAMMER
To connect the hammer, proceed as follows:
1 - Stop the engine and move the hydraulic controls in all di-
rections, in order to completely release the residual pres-
sure present in the circuits of the machine.
2 - Turn the ignition key to position « » and press the ham-
mer control push button (4) to release the residual pres-
sure from the hammer delivery pipe.
3 - Turn the ignition key to position « ».
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 - Move the backhoe control levers more than once
and press the hammer control button (4) to release
the residual pressure from the hammer delivery
pipe.
4 - Turn the ignition key to position « » .
4 - Make sure that the couplings are perfectly clean and con-
nect the hammer.
5 - Start the engine and press the push button (4) to enable
the hammer circuit.
6 - Increase the engine speed to the rpm indicated in the
technical data by means of the hand accelerator and then
start working.
RKA14490
RKA14500
RWA01960
RWA02000