The arm should not be operated in the vertical
position to prevent the arm cylinder from
shaking largely.
It pries the rod packing and piston, causing oil
leakage.
Operate the cylinder rod with leaving some
space to the stroke end.
Operating the cylinder rod at the stroke end
can cause an excessive load on the cylinder
and the machine and shorten the service life
of them considerably.
Do not use the hydraulic breaker for other
than the demolition work.
If a rock cannot be broken by hitting the same
point for 30 seconds, change the target point.
If you still continue hitting, it raises the oil
temperature and may cause a failure of the
accumulator, deterioration of the pump and
cylinder seal and abnormal wear of the chisel.
ARM IN VERTICAL POSITION
CYLINDER ROD AT STROKE END
DO NOT USE OTHER THAN DEMOLITION WORK
CONTINUOUS USE FOR 30 SECONDS OR LONGER
[
7. NIBBLER (CRUSHER) AND BREAKER
]
7-4
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