Optional Equipment
Safety, Operation and Maintenance Manual - Aug 2012 8-5
SY115C9/135C/155H Crawler Hydraulic Excavator
★ Heavy optional equipment probably re-
quires a larger space for swinging op-
eration. There might be the danger of
impacting other objects if the swinging
range has not been calculated accu-
rately. A larger space must be prepared
before performing the swinging opera-
tion.
★ When the lifting of heavy optional
equipment is held, the distance mov-
ing downward is relatively longer due
to gravity. In this case, it should be
lowered to the ground instead of being
held in air.
★ Never swing, lower or stop your ma-
chine suddenly in order to prevent it
from tipping over.
★ Never extend or retract the boom cylin-
der suddenly in order to prevent impact
that may cause the machine to tip.
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