7 - MAINTENANCE
Every 1000 hours
Air cleaner inner element - Replace
WARNING
Rotating parts!
Do not start the engine while you perform this procedure.
Failure to comply could result in death or serious injury.
W1374A
NOTE: For maximum engine protection and air cleaner ser-
vice life, install a new inner safety element every third pri-
mary element change or after every 1000 hours of opera-
tion, whichever comes rst.
Do not clean the air cleaner inner safety element (1).
Replace the inner safety element when it becomes par-
tially clogged. A clogged element will cause an air re-
striction resulting in a loss of engine power or excessive
black exhaust smoke.
NOTE: Conduct a visual inspection of the inner safety ele-
ment by placing a light inside the element. Little or no light
will shine through the element if it is partially clogged.
To remove the inner safety element, pull it out of the
canister body.
To install the new element, push it into the canister until
seated.
NOTICE: Clean any dirt from the canister before installing
the inner safety element. Check element inner diameter
seals for damage and replace the safety element if seal
damage is present.
NOTICE: Failure to obtain a good seal between the lter
and canister may cause major engine damage.
NHIL16CT00464AA 1
7-48