Maintenance Instructions CLEANING
57
Inspect the paper element after every 100 hours of
service and replace the element and safety lter ev-
ery 400 hours (or when dirty or damaged). More
frequent replacement may be required when operat-
ing in extremely dusty con ditions. Ser vice the air
cleaner as follows:
1. Lift Mono Latch Twist Lock
TM
and twist the Opti-
Air
TM
cover to the left into the “open” position to
remove the air cleaner cover. Wash the cover
and dust ejection valve. Check that these com-
ponents are in good condition. The dust ejec-
tion valve is subject to wear and deterioration
and should be inspected carefully and replaced
every 2 years or when worn or damaged. The
lips of the valve should close and t togeth er;
any cracks, deformation, or wear in the valve is
cause for replacement.
2. Remove the lter element by pulling it out of the
canister. There will be some initial resistance
as the lter seal breaks loose and slides o of
the outlet tube. Gently move the end of the
lter up and down and side to side or twist to
loosen the seal. Use gentle action to minimize
the amount of dust dislodged as the lter is re-
moved.
3. Clean the lter element by gently tapping on a
at, hard surface. If excessive restriction still
exists after cleaning the element, if should be
replaced.
NOTE: Use care when cleaning the lter ele-
ment. The lter element and/or seal surface
may be damaged by tapping too hard or hitting
on an uneven surface or sharp edge. Washing
the paper element in water or cleaning solution
is not recommended. Do not try to clean the
element with compressed air. Do not oil the
paper element. Remember, replacing a lter is
less expensive than replacing a dusted engine.
4. Use a bright light inside the lter element to in-
spect for damage. Check the element very
carefully for pin holes or other damage that
will allow dirt to leak through the paper media.
Replace lter element if dirty or damaged.
5. Check the condition and resilience of the radial
sealing surface (inside of the open end) of the
lter. Replace the lter if any cracks, tears, or
other damage to the sealing surface are noted.
6. Without removing, visually inspect the condition
of the safety lter for damage or holes. The
safety lter should only be removed for replace-
ment every 400 hours (or when dirty or dam-
aged).
IMPORTANT: Prior to removing the safety lter,
make sure the inside surface of the air cleaner
canister is clean. This will minimize the risk of
dirt entering the outlet tube which can cause pre-
mature engine wear.
7. After removing the safety lter, use a clean,
damp cloth and wipe the interior of the air clean-
er canister clean. Use special care to clean
both the inside and outside surfaces of the
outlet tube.
IMPORTANT: Any dust left on the inside of the
outlet tube will go into the engine and cause
wear.
8. Check the outside surface of the outlet tube for
smoothness and cleanness (this is the sealing
surface).
9. Insert and seat the safety lter and primary lter
element carefully into the canister, applying
pressure at the outer rim of the lter; not at the
exible center. Make sure the lter element is
completely in place before installing the cover.
IMPORTANT: DO NOT use the cover to force
the lter into the canister–the cover should t
on with no extra force.
NOTE: DO NOT use petroleum based lubri-
cants on the sealing surfaces of the lter; use
tal cum powder or dry silicone lubricants if re-
quired for lter installation.
Canister
Safety Filter
Primary
Filter Element
Radial Sealing
Surface
Outlet
Tube
Air Filter Element Replacement
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