When adding
oil
between changes, always
use
the
same brand
and
weight that
is in the
crankcase.
Various brands
of oil
may
not be
compatible when
mixed together.
Oil consumption
may be
higher with
a
multigrade
oil
than with
a
single grade
oil if
both' oils have com-
parable viscosities
at
210° F. Therefore, single grade
oils
are
generally more desirable, unless anticipating
a wide range
of
temperatures.
Use the
proper grade
oil
for
the
expected conditions.
OIL FILTER
RIP
PAN
FIGURE
8. OIL
FILTER LOCATION
TEMPERATURE
• Below
0°
0°
to 30°
30°
to 90°
Above
90°
GRADE
5W
10W
30
50
Check
oil
level daily. Change
oil
every
100
hours
under normal operating conditions. When operating
in extremely dusty
or
dirty conditions, change
oil
more often.
CRANKCASE BREATHER
The engine isequipped with a ball check valve (Figure
9)
for
maintaining crankcase vacuum.
No
maintenance
is
generally required. Should
the
crankcase become pressurized,
as
evidenced
by oil
leaks
at the
seals
or
around
the
cap
of
the
oil
level
indicator, clean baffle
in
suitable solvent.
Clean
or
replace crankcase breather baffle periodically.
Be
sure
baffle material doesn't come apart
and
work into
the
manifold.
OIL FILTER
Change
the
crankcase
oil
filter every
200
hours.
Remove
the
filter (Figure
8) by
.turning coun-
terclockwise, using
a
filter wrench.
Add the
strip
provided with
the
filter
to
prevent
air
loss
in
the
area
indicated.
It is
advisable
to
wipe
dry the
drip
pan
located below
the
filter. Coat rubber gasket
on
filter
with
a
film
of oil
before installing. Install
the
filter
finger-tight plus
1/4 to
1/2
turn.
If
oil becomes so dirty
that
the
markings
on the oil
level indicator cannot
be
seen,
change
the
filter and shorten
the
filter service
period.
BREATHER
HOSE
HOSE
CLAM
CAP
ANO
VALVE
BREATHER TUBE
FIGURE
9!
CRANKCASE BREATHER
14
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