Engine Air Cleaner Service Indicator - Inspect; Engine Air Cleaner Element - Replace - Perkins 403F-E17T 404F-E22T Operation And Maintenance Manual

SEBU9075-03
Aftertreatment
During the engine cleaning process, ensure that
water or cleaning fluids cannot enter the
aftertreatment system. If cleaning fluids enters the
aftertreatment system, damage could occur.
Engine Air Cleaner Element -
Replace
The engine air cleaner may be supplied by the
Original Equipment manufacturer (OEM), follow the
OEM instructions for removing and installing the air
filter element.
Typical Example of an Air Cleaner
Illustration 52
Typical example
1. Ensure that the body of the air cleaner is clean
before removing the filter element.
2. Remove the end cover (1) from body (3). Remove
the air cleaner element from body (3) and discard
the filter element.
3. Ensure that inner body of air cleaner is clean and
free from dirt. Install new filter element.
4. Ensure that end cover (1) and valve (2) are clean
and free from dirt. Install the end cover. When
installed, ensure that the valve (2) is in the
vertically down position.
Note: If equipped, the air cleaner service indicator
must be checked and reset.
Engine Air Cleaner Service
Indicator - Inspect
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Some engines may be equipped with a different
service indicator.
Some engines are equipped with a differential gauge
for inlet air pressure. The differential gauge for inlet
air pressure displays the difference in the pressure
that is measured before the air cleaner element and
the pressure that is measured after the air cleaner
element. As the air cleaner element becomes dirty,
the pressure differential rises. If your engine is
equipped with a different type of service indicator,
follow the OEM recommendations in order to service
the air cleaner service indicator.
The service indicator may be mounted on the air
cleaner element or in a remote location.
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Illustration 53
Typical service indicator
Observe the service indicator. The air cleaner
element should be cleaned or the air cleaner element
should be replaced when one of the following
conditions occur:
• The yellow diaphragm enters the red zone.
• The red piston locks in the visible position.
Test the Service Indicator
Service indicators are important instruments.
• Check for ease of resetting. The service indicator
should reset in less than three pushes.
• Check the movement of the yellow core when the
engine is accelerated to the engine rated speed.
The yellow core should latch at the greatest
vacuum that is attained.
Maintenance Section

Engine Air Cleaner Element - Replace

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