-
3-2
Oil
filter
Oil
filter
is
of
the filter paper full-flow type.
1)
Every 250Hr run, change oil. On the same occasion, unfasten filter case and
replace element with new one.
If
bypass alarm lamp has got alight with the
engine hot, replace element
as
soon
as
possible, without sticking
to
the
standard intervals.
2)
At the same time
to
replace element, wash the interior of filter case
in
gas
oil
(or cleaning oil).
In
assembling again,
don't
forget
to
place spring and spring
seat where they were.
3)
Carefully examine used element and
oil
and
if
many metallic, particularly
copper-color settlings found, which
is
an
evidence
of
bearing metals being
abnormally worm, take appropriate measures
at
once.
Center
bolt
Spring
Differential
alarm
terminal
Element
Fig. 3-12 Oil filter
3-3 Differential bypass
valve
This
valve
is
set
in
oil filter cover. The design
i~
such
that
an
oil
pressure difference
above 1.5kg/cm
2
between inlet and outlet sides of filter element arisen from its being
choked with dirt makes it open
to
bypass unfiltered oil directly into main
oil·
gallery
in
-
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