
SEBU8213-04 105
Maintenance Section
Engine Air Filter Secondary Element - Replace
Visually inspe
ct the primary air filter elements before
cleaning. Inspect the air filter elements for damage
to the seal, the gaskets, and the outer cover. Discard
any damaged ai
r filter elements.
Pressurizedairisthebestmethodtocleanprimary
air filter ele
ments.
Pressurized Air
g012051
20
Illustration 136
Direction of air flow
Pressur
ized air can be used to clean primary air filter
elements that have not been cleaned more than three
times. Pressurized air will not remove deposits of
carbon
and oil. Use filtered, dry air with a maximum
pressure of 207 kPa (30 p si).
Note: W
hen the primary air filter element is cleaned,
always blow the air from the clean side in order to
force dirt particles toward the dirty side. This helps
preve
nt damage to the paper pleats.
Do not touch the tip of the air gun to the primary air
filte
r element. Dirt could be forced further into the
pleats.
Befo
re you reuse the primary air filter element, check
for any damage to the seals, the gaskets, and the
bellows. Discard any damaged air filter elements.
Inspecting the Primary Air Filter
Elements
Do n
ot 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,
ga
skets or seals. Discard damaged primary air filter
elements.
i02801618
Engine Air Filter Secondary
Element - Repl
ace
SMCS Code: 1051; 1054
NOTICE
Always replace the secondary element. Do not at-
tempt to reuse it by cleaning. Engine damage could
result.
Note: Replace the secondary filter element when
you service the primary element for the third time.
If a clean primary element has been installed
and the filter element indicator still enters the red
zone, replace the secondary filter element. Also
if the exhaust smoke remains black and a clean
primary filter element has been installed, replace the
secondary filter element.
g01260135
Illustration 137
1. Open the left engine access door.
2. Remove the housing cover to the precleaner body
assembly.