ENGINE MAINTENANCE 7.1
Air Filter
The loader is equipped with dual dry cartridge, radial seal
type filter elements. The larger outside element is called a
primary and the one inside of the primary is referred to as
a safety element. (fig. C653)
The loader is equipped with an air restriction indicator
that functions while the engine is operating. When the air
filter elements require servicing the indicator light on the
dash panel will illuminate.
Over servicing the air filters can damage the seals and
pleated filter material. When the air restriction indica-
tor light illuminates in the dash panel, replace the pri-
mary air filter element with a new one. On average, the
safety air filter element will be replaced once for every
three (3) primary air filter element changes, if the primary
filter hasn’t been damaged due to over servicing.
To service the air filters,: park the loader on a level sur-
face, lower the boom arms, engage the parking brake and
shut off the engine.
Daily Checks
Checking the Restriction Sensor:
1 The air filter restriction sender wires should be visu-
ally checked daily for breaks and proper connection. (fig.
C3618)
2 With the engine operating, place your hand over the
air intake inlet to restrict air flow to the engine. The indi-
cator light on the dash panel should illuminate promptly.
Do not hold your hand over the air intake excessively,
just long enough for the indicator light to illuminate then
quickly release your hand from the intake.
NOTE: If the indicator light fails to function replace the
restriction sender or check for shorts in the wiring circuit.
3 Air cleaner hoses and clamps should be inspected
daily for proper tightness and verify air inlet hose integri-
ty. Replace any worn or cracked inlet hoses immediately.
Servicing the Air Filter Elements:
1 Release the latches holding the air cleaner cover to
the canister body. (fig. C3619)
2 Pull straight out on the primary element to remove
from the air cleaner housing. (fig. C3620) Do not twist or
force the filter. This may damage the sealing area around
the end of the air filter element.
7-6
C3618
C3620
C653
Air cleaner housing
Air restriction sender
C3619
Air cleaner cover mounting latches
Primary air filter element
Primary filter
Outlet
Inlet
Safety filter
Cover
Vacuator
valve
Air filter service recommended only when the service
indicator light illuminates.
IMPORTANT
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