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Troubleshooting
Safety, Operation and Maintenance Manual - Aug 2012
6-24
SY115C9/135C/155H Crawler Hydraulic Excavator
6.6.5 When engine rotates reversely
The following symptoms can be used to iden-
tify reverse rotation of engine.
●
High colliding sound produced after start-
ing
●
Heavy smoke coming out air cleaner
●
Tachometer and oil pressure gauge giving
no response
●
Low oil pressure alert indicator on
Check and clean the air cleaner and intake
hoses after shutting down the engine. Replace
any defective air cleaner or hose immediately.
Reverse rotation of engine can burn the
engine within several minutes or cause
severe injury. Shut down the engine imme-
diately once reverse rotation is found. The
exhaust gas from air cleaner is possible to
cause
fi
re.
WARNING