TM 5-3825-229-14&P
2-19. PUMPING OUT OF DISCHARGE VALVE (cont)
d.
Uncoil the hose completely.
e.
Refer to the Valve Operation Plate on the left rear fender. See column titled "Pump Out Discharge" and open or
close the valves as necessary, except discharge valve which MUST remain CLOSED at the beginning of the
operation.
WARNING
All personnel must wear hearing protection when the engine is operating, or permanent
hearing loss may occur.
WARNING
Do not start the engine while either of the green SPRAY NOZZLE indicator lights is on.
WARNING
Be certain the discharge nozzle is closed before starting the engine. Do not open the
discharge valve unless someone is holding the discharge end of the hose securely, and
that person is aware that you are about to open the valve.
WARNING
Open and close the discharge valve SLOWLY to prevent injuring the person at the end
of the hose from sudden surges in pressure.
WARNING
One person must remain at the semitrailer at all times to control the flow of water when
pumping out the discharge hose.
WARNING
Be certain that all persons understand the visual signals to be used to start and stop the
flow of water to the discharge hose.
WARNING
Be certain that all persons understand how to operate the adjustable nozzle.
f.
Start the water distributor engine (see para. 2-12).
g.
Open suction valve.
h.
SLOWLY open the discharge valve by turning the valve handle counterclockwise.
2-31