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TM 5-4320-305-10
2-9.
OPERATION IN EXTREME HEAT
Poor air filtering and restrictions to air and exhaust flows are harmful to engine.
The engine of the centrifugal pump is air cooled. Heat is removed from the engine through engine exhaust, engine oil,
and the passage of air across and through the cylinder cooling fins. When operating in high temperatures, observe the
following.
a.
Intake duct. Inspect engine intake duct (1).
Check hat acoustical panel (2) is securely mounted and
not blocking the blower intake ducting. Check that the
blower intake ducting is not distorted or interfering with
V-belt operation.
WARNING
Severe injury may result from contact with the rotating cooling blower or V-belt. When it is
necessary to make inspections in this area, be aware of the blower and V-belt position, or turn
engine off.
b.
V-Belts. Check that V-belt (1) driving air
blower assembly is properly adjusted and drives air
blower without slipping. During operation of the engine,
observe the alternator light. If the alternator light goes
on or occasionally blinks, the alternator V-belt (2) may
be slipping. Contact organizational maintenance if V-
belts need to be serviced.
2-79
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