MAINTENANCE AN D SERVICING
6. After s ervicing the filter, you must reset the restriction
switch (A) by pushing the button on the end of it to
reset it.
7. Close the hood, refer to 5.4. 2 Clo sing Ho od (L ower
Position), page 203.
Figure 5.75: Engine Air Cleaner
Cleaning Engine Air Filter Primary Element
IMPORTAN T
:
The second
ary (inner) element should NEVER be cleaned, only replaced.
IMPORTAN T:
Air filter element cleaning is NOT recommended due to the possible degradation of the element material. If
cleaning is performed, there are several risks involved and the following procedures should be followed. If any of
the following conditions are found, the filter element MUST be replaced.
1. Hold a bright light inside element, and check carefully for holes.
2. Check outer screen for dents. Vibration would quickly wear a hole in the filter.
3. Check filter gasket for cracks, tears, or other signs of damage.
4. Check element for oil or soot contamination.
5. Check the secondary element for cleanliness. If there is visible dirt on the secondary element, replace both
primary and secondary elements. Do NOT clean.
IMPORT
ANT:
The ai
r cleaner’s primary (outer) filter element should be replaced after three cleanings or at the specified interval.
The se
condary (inner) element should be replaced every third time the primary element is changed. Refer to 5.7.11
Maint
enance Schedule, page 313 for the require d interval.
6. If secondary element passes inspection, clean primary element as follows:
a. Use compressed air NOT exceeding 60 psi (400 kPa), and a Dry Element Cleaner G un.
b. Hold nozzle next to in ner surface only, and move up and down on pleats.
c. After three cleaning’s (or at the specified interval), replace the primary element.
7. Repeat inspection before installing.
169890 235 Revision A
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