Specifications

134 SEBU7858-03
Maintenance Section
Engine Air Filter Primary Element - Clean/Replace
Pressurized Ai
r
Pressurized air can be used to clean primary air filter
elements that
have not been cleaned more than two
times. Pressurized air will not remove deposits of
carbon and oil. Use filtered, dry air with a maximum
pressure of 2
07 kPa (30 psi).
g00281692
Illustration 166
Note: When the primary air filter elements are
cleaned, always begin with the clean side (inside)
in order to force dirt particles toward the dirty side
(outside).
Aim the hose so that the air flows inside the element
along the length of the filter in order to help prevent
damage to the paper pleats. Do not aim the stream of
air directly at the primary air filter element. Dirt could
be forced further into the pleats.
Vacuum Cleaning
Vacuum cleaning is another method for cleaning
primary air filter elements which require daily cleaning
because of a dry, dusty environment. Cleaning with
pressurized air is recommended prior to vacuum
cleaning. Vacuum cleaning will not remove deposits
of carbon and oil.
Inspecting the Primary Air Filter
Elements
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Illustration 167
Inspect the clean, dry primary air filter element. Use
a60wattbluelightinadarkroomorinasimilar
facility. Place the blue light in the primary air filter
element. Rotate the primary air filter element. Inspect
the primary air filter element for tears and/or holes.
Inspect the primary air filter element for light that may
show through the filter material. If it is necessary in
order to confirm the result, compare the primary air
filter element to a new primary air filter element that
has the same part number.
Do not use a primary air filter element that has any
tears and/or holes in the filter material. Do not use
a primary air filter element with damaged pleats,
gaskets or seals. Discard damaged primary air filter
elements.
Storing Primary Air Filter Elements
If a primary air filter element that passes inspection
will not be used, the primary air filter element can
be stored for future use.
g00281694
I
llustration 168