Walker C23i Operator's Manual page 64

Maintenance Instructions
Cleaning
Primary
Filter Element
Canister
Air Cleaner Components
(Shown with Cover Being Removed)
IMPORTANT: The Enginaire™ air cleaner uses a
dry paper-type air filter element. NEVER apply oil
to the paper element.
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. Unlatch and remove Enginaire™ air cleaner
cover. Wash the cover. Check that the cover
is in good condition.
2. Remove the filter element by pulling it out of
the canister. There will be some initial resis-
tance 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 mini-
mize the amount of dust dislodged as the filter
is removed.
Clean the filter element by gently tapping on
3.
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.
60
4.
Cover
5.
6.
7.
8.
9.
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.
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 noted.
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.
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.
Check the outside surface of the outlet tube
for smoothness and cleanness (this is the
sealing surface).
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.
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.
C23i