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ROUTINE MAINTENANCE
AIR FILTER MAINTENANCE
NOTE: It's the customer's responsibility to
follow all steps of air filter maintenance
every 200 hours or every engine oil change.
Low pre-cleaner efficiency will cause short
element life. Low pre-cleaning efficiency can
be caused by:
1. Leaking dust cup to air cleaner body
joint; cup must seal 360° around the
air cleaner.
2. A damaged or missing dust evacuator
valve.
3. Plugging or build-up in the vanes of the
pre-cleaner.
4. Damage to the pre-cleaning section of
the air cleaner.
TO PREVENT AIRBORNE CON-
TAMINANTS FROM ENTERING
THE ENGINE:
1. Check to make sure the element has
not been damaged in handling. Examine
for dents and holes.
2. Check to make sure all gaskets are
sealing. Examine for dust trails, which
indicate leaks. Check to be certain the
wingnut is tight.
3. Examine the clean air transfer tubing for
cracks, loose clamps, or loose flange
joints.
4. Check either fittings (if used) to be cer-
tain no contaminants are entering the
engine through these connections.
5. Check the service indicator for damage,
lockup function is working, and correct
calibration per engine manufacturers
recommendation.
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