8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
165
Pub. No. 291Y1-40720 Revision: 5
Intake and Exhaust Systems -
Check
• Devices and equipment outside the
scope of our supply are included in the
facility. For the details, refer to such a
document as the specification sheet
prepared by the generator supplier.
• For the devices and equipment outside
the scope of our supply, refer to the
corresponding manual of the generator
and the supplier's operation manual.
Turbocharger - Check
• For the location of the turbocharger,
refer to "2
ENGINE - OUTLINE" (→ Page
75).
• When the inspection requires the
removal of turbocharger, contact your
MHIET dealer "
CONTACT LIST" (→
Page 10).
1 Remove the pipe on the inlet side.
2 Rotate the tightening nut of the
compressor wheel by hand to check
that it rotates smoothly.
Fig. 8-108 Turbocharger - Check
• If a play or sluggish rotation is
detected, contact your MHIET dealer
"
CONTACT LIST" (→ Page 10).
3 Check the compressor wheel fins for
discoloration or damage.
• If discoloration or damage is
detected, contact your MHIET dealer
"
CONTACT LIST" (→ Page 10).
Exhaust Muffler - Drain Water
Be sure to drain the exhaust muffler.
• The exhaust muffler is outside the
scope of our supply.
For the details, refer to the
corresponding manual of the generator
and the supplier's operation manual.
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.
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