TM 5-4320-200-13 & P
Section III.
PRINCIPLES OF OPERATION
1-10.
HOW IT WORKS.
When the engine is running a shaft with attached fins (impeller)
turns inside the pump water chamber.
This causes water to be drawn
into the chamber thru an inlet opening (port).
Water then is dis-
charged thru an outlet opening (port).
A check valve located in the
suction port keeps water from running back out of the pump when it is
stopped.
IMPELLER TURNS
1-8
