3 OPERATION
Mitsubishi Diesel Engine S16R & S16R2 OPERATION & MAINTENANCE MANUAL
102
Pub. No. K29001-00320 Revision: 1
During engine operation, check engine for
abnormal noise and vibrations due to knocking, and
leaks from pipes.
Also carefully check the followings for
abnormalities.
* : Check, control and record the temperature
change during operation. Checking by means
of a noncontact thermometer (thermo gun) is
recommended.
• If any abnormality is found, refer to "11
TROUBLESHOOTING" (→ Page
187) and correct the defect.
Cooling Operation
Stopping the engine suddenly at high speed or high
load could cause a malfunction.
Be sure to cool down the engine according to the
operating guidelines of the generator.
1 Cool down the engine according to
the stopping sequence of the
generator.
• When cooling down the engine by setting
particularly, operate it for 5 to 6 minutes at
an idle speed.
Table 3-2 Checking During Operation
Check item Criteria/Reference Value
Warning indicator/in-
struments
Lighting/numerical value
normality
Engine speed/
frequency
No large fluctuation
Breather mist volume To be normal.
Exhaust color To be normal.
Damper temperature*
For continuous use: 90°C
[194°F] or lower
For emergency use: 100°C
[212°F] or lower
Engine oil pressure
0.39 MPa {3.98 kgf/cm
2
}
[56.56 psi] or more
Engine oil
temperature (Oil pan)
110°C [230°F] or lower
Coolant temperature
70 to 90 °C [158 to194°F]
(in the water jacket)
Exhaust temperature 550.0°C [1022°F] or lower
Intake air pressure
0.15 to 0.25 MPa
{1.53 to 2.55 kgf/cm
2
}
[21.76 to 36.26 psi]
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 could be damaged.
Do not stop the engine suddenly at
high speed.
* It could cause damage to the devices due to
degradation of the damper or stopped
circulation of the engine oil to the turbocharger.
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