Komatsu WA380-8 Operation & Maintenance Manual page 386

MAINTENANCE PROCEDURE
1.
Remove the bolts (1) (4 pieces) to remove cover (2).
The DEF filter is located at the positions shown in the fig-
ure.
2.
Remove filter cap (3) at the bottom of DEF pump, and re-
move equalizing element (4).
3.
Turn cap (6) of filter removal tool (5) and remove it.
4.
Check the installation of spacer (7).
5.
Insert filter removal tool (5) into the bottom of the DEF
pump and thrust in with hand.
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MAINTENANCE