Komatsu PC290LC-11 Operation & Maintenance Manual page 458

HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
METHOD FOR REPLACING ADDITIONAL PILOT FILTER ELEMENT FOR BREAK-
ER
1.
Loosen oil filler cap (F) slowly on the top of the hydraulic
tank to release the internal pressure in the hydraulic tank.
2.
Set a container to receive the oil under the additional pilot
filter at the position pointed with the arrow.
3.
After checking that the hydraulic oil temperature has drop-
ped, turn filter case (1) counterclockwise, remove it, then
remove element (2).
4.
Clean the removed parts, then install new element (2).
REMARK
Element (2) must be installed facing in the correct direc-
tion. Set direction (Y) with the holes in it up, and fit the hole
in element (2) on the protruding part inside filter head (4).
5.
Install a new O-ring (3) to filter case (1), then tighten filter
case (1).
Tightening torque: 25 to 35 Nm {2.6 to 3.6 kgm}
6-32
ATTACHMENTS AND OPTIONS