TM 5-4320-306-10
2-6. OPERATING PROCEDURES (Continued)
WARNING
Do not attempt to pump any liquids for which this centrifugal pump unit has not been designed.
The centrifugal pump unit has been designed to pump potable water or petroleum based fuels
with specific gravities between 0.85 and 1.0.
Do not pump potable water after the pump has been contaminated by pumping fuel.
c. Preparation for starting. Although the centrifugal pump unit is self-priming, it should never be operated unless
the pump body is filled with liquid to the bottom of the suction port.
(1) Open gate valve (1) of the pump suction assembly.
(2) Remove dust cap from priming port (2) on pump body. Fill the pump volute with the liquid that will be
pumped until it reaches the bottom of the suction port. Replace dust cap. When the centrifugal pump unit is started, the
pump will reprime and reprime as necessary as long as the pump body is full to the bottom of the suction port.
(3) Open gate valve (3) of the pump discharge manifold assembly.
(4) Open needle valve (4) of the air valve cover assembly on the discharge manifold assembly elbow.
(5) Be certain discharge check valve (5) is closed.
(6) Remove control panel cover assembly and turn four brass valves to the open position.
Change 1 2-55
