1 SAFETY
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
52
Pub. No. 291Y1-40720 Revision: 5
â– Intake and Exhaust Systems - Check
<Turbocharger - Check>
<Exhaust Muffler - Drain Water>
<Pre-cleaner - Check and Service>
Pre-cleaner - Check for Clogging
<Air Cleaner - Check and Service>
Air Cleaner - Check for Clogging
â– Electrical System - Check
<Battery - Check>
<Starter - Check (Self Starter Motor Starting)>
Before checking the turbocharger,
make sure that the engine has cooled
down to normal temperature. Before
checking, make sure that the
compressor wheel is not rotating.
* Otherwise, you may get burned.
* If you are caught in a rotating compressor
wheel, you will suffer laceration.
Make sure that there is no intake air
leak in the piping to the compressor of
the turbocharger.
* If there is intake air leak, insufficient boost
pressure may occur and cause deterioration in
the exhaust gas properties.
Check that the compressor or turbine
of the turbocharger is not dirty.
* If the compressor or turbine of the turbocharger
is dirty, performance degradation of the
turbocharger may occur and cause power
reduction.
Do not touch the exhaust muffler
immediately after the engine is
stopped.
• Make sure that the engine is cooled down
to the normal temperature.
* Otherwise, you may get burned.
Do not check, maintain or remove the
pre-cleaner during operation.
* Otherwise, dust or other foreign particles may
enter the engine and accelerate wear of the
parts, which causes damage to the devices
including the turbocharger.
Take care that parts will not fall down
and get caught in the fuel control link.
* If parts are caught in the fuel control rack, the
engine will become out of control.
Make sure that the pre-cleaner is free
from clogging.
* Insufficient intake air may result in loss of
power, incomplete combustion, exhaust gas
temperature rise, and overspeed of the
turbocharger.
Make sure that the air cleaner is free
from clogging.
* Insufficient intake air may result in loss of
power, incomplete combustion, exhaust gas
temperature rise, and overspeed of the
turbocharger.
Do not short the battery terminals.
* Otherwise, sparks will occur, which may cause
a fire or an explosion.
Do not touch battery terminals with
wet hands.
* You may get an electric shock.
When checking and servicing the
battery, wear proper protective gears
such as protective eyeglasses, rubber
gloves, working clothes with long
sleeves and long trousers.
* If battery fluid comes into contact with your eyes
or skin, it may result in sight loss or burns.
Check that there is no damage to the
pinion gear of the starter.
* Otherwise, sparks or damage to the devices
may occur.