Komatsu PC290LC-11 Operation & Maintenance Manual page 388

MAINTENANCE PROCEDURE
METHOD FOR CHANGING OIL IN ENGINE OIL PAN, REPLACING ENGINE OIL
FILTER CARTRIDGE
Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury.
Accordingly, wait until they have cooled down before starting the work.
Refill capacity of oil pan: 23.1 ℓ
Items to be prepared
• Container to receive drained oil
• Filter wrench
1.
Remove the undercover just under the engine of the ma-
chine and put a container under drain valve (P) to receive
the drained oil.
2.
To prevent getting oil on yourself, lower the lever of drain
valve (P) slowly, drain the oil, then raise the lever to close
the valve.
3.
Open the rear right cover.
4.
Turn filter cartridge (1) counterclockwise by using the filter
wrench, and remove it.
5.
Clean the filter head (2) , fill the new filter cartridge with
clean engine oil, coat the thread and packing surface of
the new filter cartridge with clean engine oil (or thinly apply
the grease), then install it to the filter holder.
REMARK
Check that there is no old packing stuck to filter head (2). If
any old packing is stuck, it will cause oil leakage.
6.
When installing, tighten until the packing surface contacts the seal surface of filter holder (2), then tighten it
a further 3/4 to 1 turn.
4-46
k k
WARNING
MAINTENANCE