Komatsu PC220LC -8 Operation & Maintenance Manual page 369

MACHINE READY FOR ATTACHMENT MACHINE READY FOR ATTACHMENT
4. Set the lock lever to LOCK position (L).
5. Loosen slowly oil filler cap (F) on top of the hydraulic tank to
eliminate the internal pressure in the hydraulic circuit.
6. Place a container under the filter element to catch the oil.
7. After checking that the hydraulic oil temperature has gone
down, turn filter case (1) to the left, remove it, then take out
element (2).
8. Clean the removed parts, then install new element (2).
Element (2) must be installed facing in the correct direction.
Set direction Y with the holes in it facing up, and insert the
hole in element (2) on the protruding portion inside filter
head (6).
9. Install new O-ring (3) to filter case (1), then tighten filter case (1)
to a tightening torque of 25 - 35 Nm (2.6 - 3.6 kgm, 18.8 - 26.0
lbft).
6 - 14
ATTACHMENTS AND OPTIONS ATTACHMENTS AND OPTIONS