Komatsu PC1250-11 Original Instructions Manual page 204

MACHINE OPERATIONS AND CONTROLS
4.
Check it on the "ENGINE STOPPED" mark side.
It is appropriate if the oil level is between marks H and L. If
the oil level is below L mark, add oil through oil filler port
(F).
5.
Drain the excess oil through the drain valve (P) under the
bottom of the engine oil pan if the oil level is upper than
the H on the gauge. Check the oil level again.
6.
If the oil level is proper, tighten the oil filler cap securely.
REMARK
• When checking the oil level after the engine has been
operated, wait for at least 15 minutes after stopping
the engine.
If the machine is inclining, make it level before check-
ing.
• When the ambient temperature is low, water or emul-
sified matter may stick to the dipstick, fuel filler cap,
etc. or the drained oil may be milky white because of
water vapor in the blowby gas. However, if the coolant
level is normal, it is not a problem.
METHOD FOR CHECKING CLOGGING OF AIR CLEANER
1.
Check that the air cleaner clogging caution lamp on the
machine monitor is not lit.
2.
If it is lit, clean or replace the element immediately.
For the cleaning method of the element, see "METHOD
FOR CHECKING, CLEANING AND REPLACING AIR
CLEANER".
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OPERATION