TM 9-2350-261-10
ENGINE COOLING AND AIR INDUCTION - ALL CARRIERS
Air for engine combustion and cooling is drawn through the intake grill and
radiator. Air sweeps down around the power plant and out through the exhaust grill
above the fan. An air control valve allows driver a choice of drawing air from the
rear compartment or power plant compartment for the engine. During operation, air
in the power plant compartment warms up (becomes less dense). Drawing cooler
(more dense) air from the rear compartment gives the engine a boost in horsepower.
When the vent is open to draw from the crew compartment, less air is being drawn
through the radiator. In hot climates, it should only be opened for short periods. The
air cleaner is equipped with a restriction indicator to inform the driver when the
element needs cleaning.
WARNING
Failure
to
o p e n v e n t i l a-
tor, when op-
erating carrier
with
all
hatches closed,
will result in a serious lack
of oxygen.
CAUTION
Avoid overheating of components during
operation. Keep power plant door, access
plates, and panels closed tightly for correct
air flow.
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