D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
126
Printed in Jan. 2001 PS-MMA0415-E1A
4.4.4. Precautions for operation
1) Precautions for operation of engine
The following precautions should be observed when starting, operating, or stopping
the engine:
Operations Precautions
Reasons
When starting
the engine
1) Check oil level
2) Crank the engine with starter to
check the increase in oil
pressure(until the needle of
pressure gauge starts to move or
pressure indicator lamp is
actuated) before starting the
engine.
2) Abrupt starting of the engine
causes the engine to rotate with
oil not being distributed not only
to each part but also to the
turbocharger, resulting in
abnormal wear or seizure on the
bearing due to insufficient supply
of oil.
3) When having replaced oil, oil
filter element, or lubricating
parts, or when having stopped
the engine for extended period of
time, or in a cold place, loosen
the oil pipe connections and
operate the starter motor until oil
is discharged. After completing
the operation, be sure to retighten
the oil pipe connections portion
before starting the engine.
3) In the case of the engine stopped
for extended time or in a cold
place, oil fluidity within the
pipes can be deteriorated
Immediately
after starting
1) Run the engine at idle for 5
minutes after starting off.
1) Applying load abruptly If load is
abruptly applied with the engine
and turbocharger rotating
unsmoothly, such parts that a
sufficient amount of oil has not
reached can be seized up.
2) Check each part for leakage of
oil, gas, and air, and take proper
measure.
2) Leakage of oil, gas, and air
(especially, oil leak) causes drop
in oil pressure and loss of oil
results in seizure of the bearing.
During operation
Check the followings:
1) Oil pressure At idle: 0.8 kg/cm
2
or more At full load: 3.0
~
4.8
kg/cm
2
1) Excessively low oil pressure
causes unusual wear or seizure of
the bearing. Too high pressure
causes oil leakage.
2) If unusual sound or vibration is
heard or felt, reduce engine
revolutions slowly and locate the
cause.
2) The engine Is operated
continuously with unusual sound
or vibration not corrected, it can
be damaged beyond repair.
When stopping
the engine
1) Run the engine at idle for 5
minutes before stopping.
1) If the engine is put to a stop after
being operated at high load, heat
from the red-hot turbine blades is
transmitted to the bearing portion
and burns oil to cause seizure of
the bearing metal and rotating
shaft.
Summary of Contents for D1146
Page 1: ...PS MMA0415 E1A MAINTENANCE MANUAL Diesel Engine D1146 D1146TI DE08TIS 65 99897 8056 Feb 2001...
Page 28: ...D1146 D1146TI DE08TIS MAINTENANCE MANUAL 24 Printed in Jan 2001 PS MMA0415 E1A...
Page 29: ...D1146 D1146TI DE08TIS MAINTENANCE MANUAL 25 Printed in Jan 2001 PS MMA0415 E1A...
Page 32: ...D1146 D1146TI DE08TIS MAINTENANCE MANUAL 28 Printed in Jan 2001 PS MMA0415 E1A...
Page 145: ...z WORLDWIDE NETWORK...
Page 146: ......
Page 147: ......