Komatsu WA800-3E0, Operation & Maintenance Manual

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MAINTENANCE
SERVICE PROCEDURE
4-55
8. Using the filter wrench, turn filter cartridge (1) counter-
clockwise to remove it.
In particular, if this operation is carried out immediately
after stopping the engine, a large amount of oil will come
out, so wait for 10 minutes before starting the operation.
9. Clean the filter holder of the filter head.
10. Fill a new filter cartridge with clean oil, coat the seal portion
and the threaded portion of the new filter cartridge with oil,
then install.
11. Install the new filter cartridge to the filter holder.
When installing, bring the seal surface into contact with the filter holder, then tighten a further 3/4-1 turns by
hand.
12. After replacing the filter cartridge, add engine oil through oil
filler (F) until the oil level is between the H and L marks on
the dipstick.
13. Run the engine at idle for short time, then stop the engine,
and check that the oil is between the H and L marks on the
dipstick. For details, see “CHECK OIL LEVEL IN ENGINE
OIL PAN, ADD OIL (3-72)“.
Engine
stopped
Engine idling