Perkins 402J-05 Operation And Maintenance Manual page 83

M0087369-08
Illustration 57
Typical example
(1) Top Cover
(2) Air Cleaner Body
(3) Primary Air Filter Element
(4) End Cover
(5) Vacuum Valve
1. Ensure that the outer body of the air cleaner to be
serviced is clean and free from dirt.
2. Inspect the top cover (1) and if necessary remove
top cover to clean cover. Ensure that dirt cannot
enter the air cleaner system with top cover
removed. If necessary, clean top cover and install.
3. Remove end cover (4) from air cleaner body (2). If
necessary, clean end cover and ensure that the
vacuum valve (5) is clean and free from dirt.
Check the vacuum valve (5) for wear or damage,
replace if necessary.
4. Remove primary air filter element (3) and if
equipped, remove the secondary air filter element
(Not Shown). Discard all old air filter elements.
5. If equipped, install new secondary air filter element
(Not Shown) and install new primary air filter
element (3).
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
Engine Air Cleaner Service Indicator - Inspect
6. Install end cover (4) to air cleaner body (2) and
secure end cover. If necessary, reset the air
service indicator, refer to this Operation and
Maintenance Manual, Engine Air Cleaner Service
Indicator - Inspect for more information.
Engine Air Cleaner Service
Indicator - Inspect
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 58
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.
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Maintenance Section
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