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.
If the service indicator does not reset easily, or if the
yellow core does not latch at the greatest vacuum,
the service indicator should be replaced. If the new
service indicator will not reset, the hole for the service
indicator may be restricted.
The service indicator may need to be replaced
frequently in environments that are severely dusty.
i07819526
Engine
Air
Precleaner
-
Check/
Clean
Illustration 67
g01453058
Typical engine air precleaner
(1) Wing nut
(2) Cover
(3) Body
Remove wing nut (1) and cover (2). Check for an
accumulation of dirt and debris in body (3). Clean the
body, if necessary.
After cleaning the precleaner, install cover (2) and
wing nut (1).
Note:
When the engine is operated in dusty
conditions, more frequent cleaning is required.
Do not tap or strike the air cleaner element.
i05926015
Engine
Crankcase
Breather
Element
-
Replace
Hot oil and hot components can cause personal
injury. Do not allow hot oil or hot components to
contact the skin.
NOTICE
Ensure that the engine is stopped before any servic-
ing or repair is performed.
The crankcase breather is a very important
component in order to keep your engine emissions
compliant.
• The filter element within the crankcase breather
must be serviced at the prescribed service
interval.
• The correct filter element must be installed before
the engine is operated.
• The installation of the filter element is very
important.
• The quality of the filter element that is installed is
very important.
• The filter element protects the engine from
excessive quantities of oil from entering the
induction system. The filter element also protects
the engine aftertreatment system.
Note:
Excessive quantities of oil that enter the
induction system of the engine can rapidly increase
the engine speed without control.
For information on aftermarket products, refer to
Operation and Maintenance Manual, “Engine
Description”. Within that section, refer to the title
“Aftermarket Products and Perkins Engines”.
SEBU9063-07
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