DV11
Operation and Maintenance
190
Maintenance of Major Components
Printed in Mar. 2005 PS-MMA0608-E1A
4) Sealing at compressor shaft
In order for the compressed intake air and lubricating oil not to leak, a seal plate
and a seal ring are made to the double structures.
5.3.4. How to handle the engine
1) Precautions for operation of the engine
Operation following items must be observed at the starting, operation and stop of
engine.
Operation Caution Reason
1) Inspect oil quantity
2) After confirming that oil pressure
rises by starting engine with
starter (until the pointer of oil
pressure gauge moves or
pressure indicating lamp
operates), the starting must be
done.
2) If engine is started quickly, of
course beginning with every parts
of engine, for it revolves without
oil that is to reach to the
turbocharger, the bearing's
abnormal wear or stuck may be
caused.
At starting
3) In case that oil, oil filter and
lubricating system's part are
replaced or engine was stalled for
long time (more than a week),
and in case of operation under
cold weather, loosen the oil pipe
connecting parts of turbocharger
inlet, and operate the starting
motor until oil comes out the
connecting parts. Care must be
paid that after the confirming
above, retighten the pipe
connecting parts without fail, and
proceed with the normal starting.
3) In case that engine stalled for long
time and of cold weather, the
fluidity of oil may be get worse.
1) Perform idling operation for about
5 min. immediately after engine
starting.
1) Sudden load at time soon after
engine starting and at the state
when turbocharger did not yet
reach to smooth revolution, if
abrupt load is applied to engine,
some parts where oil did still not
reach may cause a burn to be
stuck.
Immediately
After starting
2) Various inspections must insure
that there are no leakage of oil,
gas and air.
2) If there are the leakage of oil, gas,
air, particularly oil, for the oil
pressure lowers, it causes a burn
of bearing to be stuck.
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