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 TM 55-1905-219-14-2
2-198. STARTING - PORTABLE FIRE PUMP (Cont).
(11) Let the rope (8) go. It will rewind automatically.
(12) After the engine starts and runs a few seconds, push the choke knob (5) in.
(13) Check pressure gage (9) to be sure water pressure is building up. This will occur approximately 20 seconds after
the pump has been started, at a suction lift of 16 feet (5 meters).
Do not run pump more than forty-five seconds unless
pressure shows on the gage. If pump is not primed
in forty-five seconds, stop engine, tighten all suc-
tion connections and hose couplings and try again.
(14) If the pressure gage (9) does not show a pressure buildup - repeat steps through 13.
(15) If the pressure gage (9) still does not show a pressure build up, perform steps 16 through 21.
(16) If the pump does not prime and the suction lift is less than 16 to 20 feet (4.9 to 6.1 meters), manually prime.
2-735
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