Safety
Safety, Operation and Maintenance Manual - Sep 2012
2-64
SY115C9/135C/155H Crawler Hydraulic Excavator
2.5.12 Welding operation
Welding operation may lead to
fi
re or electro-
cution. Only qualified welders are allowed to
conduct welding operation using proper equip-
ment.
2.5.13 High-pressure hoses
If oil leaks from high-pressure hose, fault or
even fire may occur. If any bolt on hose is
loose, stop operation and tighten it to speci
fi
ed
torque. In case of hose damage, stop opera-
tion immediately and contact Sany HM autho-
rized dealer.
Replace the hose immediately in case of the
following problems:
●
Damage or leak of hydraulic hose
fi
tting
●
Damage or break of outer cover, or ex-
posed steel wires of reinforcement layer
●
Ballooning outer cover in some places
●
Distortion or crushing of movable parts
●
Impurities in outer cover