Komatsu PC490-11, Installation And Instruction Manual

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5.
Align the position of
◇
mark (13) on the case with that of
◇
mark (8) of the filter body label, then install the case to the
filter body.
The case can be installed only when its claws (14) are cor-
rectly inserted in grooves (10) of the filter body. When in-
serting, take extreme care so that protrusion (15) in the
case is joined together with rubber lip (16) of the element.
6.
Fit ring (3) to the threaded part of the body and tighten it
with the hand firmly until it stops.
7.
By using the special wrench, further tighten the ring 1/15 to
2/15 turns (1 to 2 ridges of the ring).
If the engine is operated with the ring tightened insufficient-
ly, oil and blowby gas may leak.
Check the KCCV hose for leakage, crack, and loose clamp, and replace it if necessary.
METHOD FOR REPLACING DEF FILTER
k k
WARNING
Immediately after the engine is stopped, the parts are still very hot. Do not replace the filter immediately.
Wait until all of parts cool down before starting the work.
MAINTENANCE PROCEDURE MAINTENANCE
4-72