Operation at High Altitudes - TM-5-4320-251-140017

2-14.

Operation

under

Rainy

Humid

reciprocating pump at high altitudes:

a. The efficiency of internal combustion engines

Conditions

decreases because of the reduced supply of

Note the following when operating the

available oxygen necessary to burn the fuel in the

reciprocating pump in rainy or humid conditions:

engine. Keep the engine tuned up and running at

a. Take care to prevent moisture from entering

the greatest possible efficiency during high-altitude

the fuel system. Keep the fuel tank filled when the

operation.

unit is not in use to prevent moisture from con-

b. Because of the reduced atmospheric pressure

densing in the fuel tank.

at high altitudes, the pumping capacity of the pump

b. Service the fuel strainer frequently to prevent

is reduced. Keep suction lifts as short as possible by

moisture from accumulating in the fuel bowl.

locating the pump as close to the fluid supply as

2 - 1 5 . Operation at High Altitudes

possible.

Note the following when operating

the

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