S18
Maintenance Instructions
Cleaning
57
Inspect the primary filter element
after every 100
hours
of service and
replace
the element and
safety filter
every 400 hours
(or when dirty or
damaged). More frequent replacement may be
required when operating in extremely dusty con-
ditions. Ser vice the air cleaner as follows:
1. Lift Mono Latch Twist Lock
TM
and twist the
OptiAir
TM
cover to the left into the “open” posi-
tion to remove the air cleaner cover. Wash the
cover and dust ejection valve. Check that
these com ponents are in good condition. The
dust ejection 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 fit togeth er; any cracks, deformation, or
wear in the valve is cause for replacement.
2. Remove the primary filter element by pulling it
out of the canister. There will be some initial
resistance as the filter seal breaks loose and
slides off of the outlet tube.
Gently
move the
end of the filter 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 filter is removed.
3.
Clean the filter element by
gently tapping
on
a
flat, hard surface.
If excessive restriction
still exists after cleaning the element, if should
be replaced.
NOTE:
Use care when cleaning the filter
element. The filter element and/or seal sur-
face may be damaged by tapping too hard or
hitting on an uneven surface or sharp edge.
Washing the paper element in water or clean-
ing solution is
not recommended.
Do not try
to clean the element with compressed air. Do
not oil the paper element. Remember, replac-
ing a filter is less expensive than replacing a
dusted engine.
4. Use a bright light inside the filter element to
inspect for damage. Check the element very
carefully for
pin holes or other damage
that
will allow dirt to leak through the paper media.
Replace filter element if dirty or damaged.
5. Check the condition and resilience of the radial
sealing surface (inside of the open end) of the
filter. Replace the filter if any cracks, tears, or
other damage to the sealing surface are not-
ed.
6. Without removing, visually inspect the condi-
tion of the safety filter for damage or holes.
The safety filter should only be removed for
replacement every
400 hours
(or when dirty
or damaged).
IMPORTANT:
Prior to removing the safety
filter, 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 premature engine wear.
7. After removing the safety filter, use a clean,
damp cloth and wipe the interior of the air
cleaner 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 filter and primary
filter element carefully into the canister, apply-
ing pressure at the outer rim of the filter; not at
the flexible center. Make sure the filter ele-
ment is completely in place before installing
the cover.
IMPORTANT:
DO NOT use
the
cover
to
force the filter into the canister–the cover
should fit on with
no extra force.
NOTE:
DO NOT
use petroleum based lubri-
cants on the sealing surfaces of the filter; use
tal cum powder or dry silicone lubricants if
required for filter installation.
Canister
Safety Filter
Primary
Filter Element
Radial Sealing
Surface
Outlet
Tube
Air Filter Element Replacement
