Optional Equipment
Safety, Operation and Maintenance Manual - Aug 2012 8-21
SY115C9/135C/155H Crawler Hydraulic Excavator
8.4.2 Hydraulic breaker operation
90°
90°
CZ335-1105017
Note:
The excavator shall not be raised too much.
CZ335-1105018
CZ335-1105019
1. Press the breaker chisel vertically and
fi rmly onto the object to be broken during
breaking operation.
2. Press the breaker chisel tightly onto the
working surface when striking and slightly
raise the front of the undercarriage about 5
mm (0.2 in) from the ground, as shown in
the right illustration. This clearance above
ground shall not exceed 5 mm (0.2 in).
3. If the same surface cannot be penetrated
or broken by the chisel within one minute
under continuous striking, change the
struck position and try to break it near the
edge.
Fig. 8-23
Fig. 8-24
Fig. 8-25
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