8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
148
Pub. No. 291Y1-40720 Revision: 5
â– Engine Oil - Refill
1 Remove the oil filler cap (1).
Fig. 8-52 Oil Filler Cap - Remove
2 Refill engine oil to the specified
level.
• Tool: Hand pump, and others.
• For the specified quantity of engine
oil, refer to "
SPECIFICATIONS -
CHECK" (→ Page 12).
3 Remove the rocker cover from all the
cylinder heads.
•Tool: Wrench
Fig. 8-53 Rocker Cover - Remove
4 Apply engine oil to the valve
mechanisms of all the cylinder
heads.
• Tool: Oiler, oil jug, and others.
Fig. 8-54 Engine Oil - Apply (Valve Mechanism)
Be sure to install the oil filler cap after
engine oil is refilled.
* Otherwise, seizure due to insufficient oil or
environmental pollution due to engine oil
flowing out from the facility may occur.
Make sure that engine oil is not
leaking from the oil pan. When
checking the engine oil level, wear
protective glasses to prevent engine
oil from getting in your eyes.
* If engine oil gets in your eyes, it may cause pain
and lead to sight loss at the worst.
Refill engine oil enough to raise the
level to within the specified range
(between the highest line {H} and the
lowest line {L}).
* If the engine oil level exceeds the upper limit,
the oil pan may crack or oil may splash out from
the breather.
* If the engine oil level is too low, seizure of the
bearings may occur.
Keep the quantity and properties
(viscosity) of the engine oil at the
specified level.
* If the supply or kinematic viscosity of engine oil
is too low, insufficient lubrication of the
bushings may occur and cause seizure of the
crankshaft.
* If kinematic viscosity of engine oil increases,
fuel consumption may increase.
(1)
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