After cleaning the radiator and aftercooler, start the
engine. Run the engine. This action helps remove
debris and the drying of the core. Stop the engine.
Use a light bulb behind the core to inspect the core
for cleanliness. Repeat the cleaning, if necessary.
Inspect the fins for damage. Bent fins may be opened
with a “comb”. Inspect these items for good condition:
Welds, mounting brackets, air lines, connections,
clamps, and seals. Make repairs, if necessary.
i10002203
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 fluid in the engine
• Cold Starting and Operation
Refer to the standards for the engine or consult your
Perkins distributor to determine if the engine is
operating within the defined parameters.
Severe service operation can accelerate component
wear. Engines that operate under severe conditions
may need more frequent maintenance intervals to
ensure maximum reliability and retention of full
service life.
Perkins engines are unable to identify all the factors
which can contribute to severe service operation, due
to individual applications. Consult your Perkins
distributor 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.
Fuel with cleanliness levels from ISO 18 to ISO 21
will require the optional CFM (Clean Fuel Module)
equipment to achieve 500hr filter change interval.
For fuel cleanliness of ISO 21 and above a customer
supplied fuel pre-cleaner or scrubber will be required
to condition the fuel to below the ISO 18 or ISO 21
depending upon the fuel filter option selected.
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.
Cold Starting and Operation – The application
should be fitted with a Jacket Water heater set to
60 °C (140 °F), which will help with starting at
temperatures of 10 °C (50 °F) down to −18 °C
(−0 °F) at the air cleaner temperature at sea level.
Additional application starting aids such as ‘room or
space heaters’ are required for starting and operation
below this temperature. Perkins recommends that
site load is applied when the engine reaches rated
speed. Refer to “Engine Operation” low load running
table of this Operations and Maintenance Manual for
more information on low load running.Refer to your
Perkins distributor for more information in starting
and operation in cold temperatures.
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 become very difficult. 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
• Frequent hot shutdowns
• Operating at excessive loads
• Operating at excessive speeds
• Operating outside the intended application
Incorrect Maintenance Procedures
• Extending the maintenance intervals
96 M0163009
Maintenance Section
Severe Service Application - Check
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