108 SEBU8605-01
Maintenance Section
Severe Service Application - Check
i02335775
Severe Service App lication -
Check
Severe service is the application of an engine that
exceeds the current published standards for that
engine. Per
kins maintains standards for the following
engine parameters:
•
Performanc
e such as power range, speed range,
and fuel consumption
•
Fuel quali
ty
•
Operational Altitude
•
Maintenance intervals
•
Oil selec
tion and maintenance
•
Coolant type and maintenance
•
Environmental qualities
•
Install
ation
•
The temperature of the fluid in the engine
Refer to the standards for the engine or consult your
Perkins dealer or your Perkins distributor in order to
determ
ine if the engine is operating within the defined
parameters.
Sever
e 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 t
o individual applications, it is not possible
to identify all of the factors which can contribute
to severe service operation. Consult your Perkins
deal
er 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
app
lication.
Environmental Factors
Ambient tempe
ratures – Theenginemaybe
exposed to extended operation in extremely
cold environments or hot environments. Valve
components ca
n be damaged by carbon buildup if
the engine is frequently started and stopped in very
cold temperatures. Extremely hot intake air reduces
engine perfo
rmance.
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.
Maintenanc
e can be very difficult. The buildup can
contain corrosive chemicals.
Buildup – C
ompounds, 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.
Incorre
ct Operating Procedures
•
Extended operation at low idle
•
Frequent hot shutdowns
•
Operat
ing at excessive loads
•
Operating a t excessive speeds
•
Operating outside the intended application
Incorrect Maintenance Procedures
•
Exten
ding the maintenance intervals
•
Failure to use recommended fuel, lubricants and
cool
ant/antifreeze
i02177969
Star
ting Motor - Inspect
Perkins recommends a scheduled inspection of the
starting motor. If the starting motor fails, the engine
ma
y not start in an emergency situation.
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