Komatsu D375A-8, Operation & Maintenance Manual

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4.
Tighten the drain valve (2).
5.
Turn the full-flow filter cartridge (3) counterclockwise by us-
ing the filter wrench, and remove it.
6.
Clean the filter head, fill the new filter cartridge with engine
oil, coat the threaded part and packing surface of the new
filter cartridge with engine oil (or apply thin film of grease),
then install it to the filter head.
7.
When installing the cartridge, tighten it until the packing
surface contacts the filter head, then tighten it 3/4 to1 turn.
8.
After replacing the filter cartridge, refill with engine oil
through oil filler port (F) until the oil level is between H and
L marks on dipstick (G).
9.
Run the engine at idle for a time, then stop the engine.
Check that the oil level is between H and L marks on the
dipstick by referring to “METHOD FOR CHECKING OIL
LEVEL IN ENGINE OIL PAN, ADDING OIL”.
REMARK
When the ambient temperature is low, water or emulsified matter may stick to the dipstick and oil 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.
There is no problem even if the emulsified matter cannot be removed completely after changing the oil.
MAINTENANCE PROCEDURE MAINTENANCE
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