8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
169
Pub. No. 291Y1-40720 Revision: 5
Alternator - Check
• For the location of the alternator, refer
to "2
ENGINE - OUTLINE" (→ Page 75).
Fig. 8-116 Alternator - Check
1 Check the alternator for damage.
2 Remove the belt.
3 Rotate the pulley by hand to check
the smooth rotation.
• If the alternator is defective, contact
your MHIET dealer "
CONTACT LIST"
(→ Page 10).
Air Direct Admission Starting,
Air Motor Starting - 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.
Air Strainer - Drain Water and
Clean
• The starting air strainer may be outside
the scope of our supply. For the details,
refer to such a document as the
specification sheet prepared by the
generator supplier.
• If it is not supplied by MHIET, follow the
instructions in the supplier's operation
manual.
1 Close the main valve of the starting
air tank.
ï‚®The air supply stops.
2 While cranking the engine lightly,
bleed air remaining in the engine and
the starting air system.
Do not touch the rotating part of the
alternator.
* Otherwise, you may get caught in the rotating
part and suffer an injury or damage to the
devices may occur.
When working by using compressed
air, wear protective glasses.
* Not wearing or wearing protective gears
incorrectly may result in serious injury.
Before draining or cleaning the
starting air strainer, bleed air
completely. In addition, check the
pressure reduction with the pressure
gauge.
* If high pressure air remains in the pipe, the
drain valve may blow off and cause personal
injury or damage to the devices.
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