TM 5-4320-302-14
(3) Press down on handle closing exhaust valve.
NOTE
Exhaust is directed through venturi. This draws air from centrifugal pump volute. As air is
removed from volute, water from suction side of pump will be drawn into volute. This water will
fill volute and pump will draw on its own.
(4) Close cock valve and swing handle off exhaust valve as soon as water flow through pump is indicated by
expansion of discharge hose.
(5) Place handle in released position.
(6) Allow exhaust valve to float in exhaust gas stream.
g. Adjusting Speed. If necessary, adjust centrifugal pump unit speed and pumping rate by unlocking THROTTLE T-
handle and raising or lowering engine rpm as required. Lock THROTTLE T-handle in position after adjustment is
complete.
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