• Easy detection of fluid leaks
• Maximum heat transfer characteristics
• Ease of maintenance
Note: Caution must be used in order to prevent
electrical components from being damaged by
excessive water when the engine is cleaned.
Pressure washers and steam cleaners should not be
directed at any electrical connectors or the junction of
cables into the rear of the connectors. Avoid electrical
components such as the alternator, the starter, and
the ECM. Protect the fuel injection pump from fluids in
order to wash the engine.
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.
i04150591
Engine Air Cleaner Element
(Single Element) - Inspect/
Clean/Replace
Refer to Operation and Maintenance Manual, “Engine
Air Cleaner Service Indicator-Inspect”.
NOTICE
Never run the engine without an air cleaner element
installed. Never run the engine with a damaged air
cleaner element. Do not use air cleaner elements with
damaged pleats, gaskets or seals. Dirt entering the
engine causes premature wear and damage to en-
gine components. Air cleaner elements help to pre-
vent airborne debris from entering the air inlet.
NOTICE
Never service the air cleaner element with the engine
running since this will allow dirt to enter the engine.
A wide variety of air cleaners may be installed for use
with this engine. Consult the OEM information for the
correct procedure to replace the air cleaner.
i02335405
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.
Illustration 53 g00103777
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.
94 SEBU8726
Maintenance Recommendations
Engine Air Cleaner Element (Single Element) - Inspect/Clean/Replace
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