Komatsu PC1250-11, Original Instructions Manual

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The element can be installed only when its claw (12) and
claw (13) of the case are correctly inserted in the groove
(14) of the body. Bases (15) and (16) are oval. When in-
serting, take extreme care so that those bases are match-
ed with each other.
6.
Fit the ring (3) to the threaded part of the body and tighten
it with hands firmly until it stops.
7.
Tighten the ring 1/15 to 2/15 turns further (1 to 2 ridges of
the ring) by using the special wrench.
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.
EVERY 4000 HOURS MAINTENANCE
Maintenance for every 10, 100, 250, 500, 1000 and 2000 hours service should be performed at the same time.
REPLACE DEFINED LIFE PARTS
Material quality of these parts can change as time passes and they are likely to wear out or deteriorate.
Replace them every 2 years or every 4000 hours, whichever comes sooner.
MAINTENANCE PROCEDURE MAINTENANCE
4-74