108
SEBU8605-01
Maintenance Section
Severe Service Application - Check
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Severe Service Application -
Check
Severe service is the application of an engine that
exceeds the current published standards for that
engine. Perkins maintains standards for the following
engine parameters:
•
Performance such as power range, speed range,
and fuel consumption
•
Fuel quality
•
Operational Altitude
•
Maintenance intervals
•
Oil selection and maintenance
•
Coolant type and maintenance
•
Environmental qualities
•
Installation
•
The temperature of the
fl
uid in the engine
Refer to the standards for the engine or consult your
Perkins dealer or your Perkins distributor in order to
determine if the engine is operating within the de
fi
ned
parameters.
Severe service operation can accelerate component
wear. Engines that operate under severe conditions
may need more frequent maintenance intervals in
order to ensure maximum reliability and retention of
full service life.
Due to individual applications, it is not possible
to identify all of the factors which can contribute
to severe service operation. Consult your Perkins
dealer or your Perkins distributor for the unique
maintenance that is necessary for the engine.
The operating environment, incorrect operating
procedures and incorrect maintenance procedures
can be factors which contribute to a severe service
application.
Environmental Factors
Ambient temperatures –
The engine may be
exposed to extended operation in extremely
cold environments or hot environments. Valve
components can be damaged by carbon buildup if
the engine is frequently started and stopped in very
cold temperatures. Extremely hot intake air reduces
engine performance.
Quality of the air –
The engine may be exposed
to extended operation in an environment that is
dirty or dusty, unless the equipment is cleaned
regularly. Mud, dirt and dust can encase components.
Maintenance can be very dif
fi
cult. The buildup can
contain corrosive chemicals.
Buildup –
Compounds, elements, corrosive
chemicals and salt can damage some components.
Altitude –
Problems can arise when the engine is
operated at altitudes that are higher than the intended
settings for that application. Necessary adjustments
should be made.
Incorrect Operating Procedures
•
Extended operation at low idle
•
Frequent hot shutdowns
•
Operating at excessive loads
•
Operating at excessive speeds
•
Operating outside the intended application
Incorrect Maintenance Procedures
•
Extending the maintenance intervals
•
Failure to use recommended fuel, lubricants and
coolant/antifreeze
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Starting Motor - Inspect
Perkins recommends a scheduled inspection of the
starting motor. If the starting motor fails, the engine
may not start in an emergency situation.
