Safety
Safety, Operation and Maintenance Manual - Sep 2012
2-61
SY115C9/135C/155H Crawler Hydraulic Excavator
Locked
CZ335-1102076
2.5.7 Maintenance with engine running
To prevent injury, no maintenance shall be car-
ried out when the engine is running. However,
if maintenance has to be done on a running
engine, at least two worker are needed to car-
ry out the maintenance.
●
One of the workers shall stay in the opera-
tor seat ready to shut down the engine at
any time. All the workers involved shall
keep in touch.
●
Place the hydraulic lockout control to the
LOCK position to prevent movement of
work equipment.
●
Pay special attention to rotating parts like
fan and fan belt.
●
Never leave or insert any tool or other ob-
jects in the fan or the fan belt, which may
cause the parts to break or
fl
y.
●
Never touch any control lever. If one of the
control levers must be used, give signal
to other workers and warn them to move
quickly to a safe area.
CZ335-1102077
Fig. 2-95
Fig. 2-96
Fig. 2-97
CZ335-1102078
2.5.8 Working under the machine
●
Never carry out maintenance before the
machine is well supported.
●
Lower the work equipment to the ground
before maintaining the machine.
●
If the machine or work equipment has to
be lifted for maintenance, blocks or sup-
ports that are strong enough to support
the machine or work equipment should be
used. Never use slag bricks, empty tires
or stands to support the machine. These
things may collapse under continuing load.
Never use single jack to support the ma-
chine.
