Fuel - Mitsubishi S12R Operation & Maintenance Manual

Keep the intake air temperature at
the specified level.
* If the intake air temperature is higher than the
specified level, the engine stopping device may
work due to the increased exhaust temperature
and stop the engine suddenly.
* Excessive thermal load may cause piston
scuffing.
* If the intake air temperature cannot be kept at
the specified level, reconsider the operating
conditions and operating time.
Keep the engine oil and coolant
temperatures at the specified level.
* If the engine oil or coolant temperatures is
increased, the engine stopping device may
work due to the increased exhaust temperature
and stop the engine suddenly.
■ Cooling Operation
Except in a time of emergency,
operate the engine at low idle for 5 to
6 minutes to cool down before
stopping the engine.
* If the engine is stopped without cooling down,
the devices may be damaged.
Do not stop the engine suddenly at
high speed or high load.
* It may cause damage to the devices due to
degradation of the damper or poor circulation of
the engine oil to the turbocharger.
■ Stopping
Do not restart the engine immediately
after an abnormal stop.
* Investigate the cause of abnormality, correct
the defect, then restart the engine.
Do not race the engine immediately
before shutting it down.
* Otherwise, the devices may be damaged.
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
Pub. No. 291Y1-40720 Revision: 5

FUEL

■ Fuel
Do not refill the fuel tank more than
the specified level.
* Otherwise, fuel leaks may cause a fire.
Do not mix and use fuels of different
types and/or manufacturers.
* Otherwise, damage to the fuel supply pump or
deterioration in the exhaust properties may
occur.
Do not use fuel after the
recommended storage expiration
date.
* Otherwise, incomplete combustion may cause
flue explosion or deterioration in the exhaust
gas properties.
Use only the fuel that meets our fuel
quality standards specified in this
Operation & Maintenance Manual.
* Otherwise, damage to the fuel supply pump or
deterioration in the exhaust properties may
occur.
* Using a fuel with low cetane number (lower than
45) may result in failure to start, worsening
smoke discharge, and flue explosion.
Change the fuel remained in the tank
or the pipelines over the period
recommended by the manufacturer
with new fuel.
* Otherwise, deterioration in the components
may cause clogged pipe lines resulting in
starting failure.
1 SAFETY
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