Mitsubishi S12R Service Manual

8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
163
Pub. No. 291Y1-40720 Revision: 5
Cooling System - Bleed Air
After changing or refilling coolant, operate the
engine as follows:
1 Pull the manual stop lever in the
direction of stopping and hold this
position, and crank the engine for
approx. 10 seconds using the
starter.
Coolant will be supplied to each part.
Fig. 8-105 After Coolant Change - Adjust
• The location of the manual stop lever
varies depending on the specification
of the engine. Refer to "
Protection
System - Location" (→ Page 82).
2 Pause for about 1 minute.
3 Repeat the operation of Step 1 and 2
for 2 or 3 times.
Coolant will reach each part.
4 Slightly loosen the air vent plug at
the engine coolant outlet pipe and
bleed air.
• For the location of the air vent plug,
refer to such a document as the
corresponding manual of the
generator.
5 After checking that air has been
bled, tighten the air vent plug.
6 Check the coolant level.
• If the level is low, refill."
Coolant - Refill" (→
Page 162)
• For the specified quantity of coolant,
refer to "
SPECIFICATIONS - CHECK"
(→ Page 12).
Bleed air sufficiently from the cooling
system.
* If air remains in the coolant, cooling
performance may degrade, and seizure of the
engine or piston scuffing may occur.
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Mitsubishi S12R Specifications

General

Brand	Mitsubishi
Model	S12R
Category	Engine
Language	English