OPERATING INSTRUCTIONS AND SAFETY PRECAUTIONS FOR FIRE AND SALVAGE PUMP MODEL P-250

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OPERATING INSTRUCTIONS AND SAFETY PRECAUTIONS FOR FLUSHING WATER PUMP

TM-55-1905-219-14-2 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

OPERATING AND TESTING PROCEDURE FOR MAGAZINE SPRINKLER

TM 55-1905-219-14-2

OPERATING INSTRUCTIONS AND SAFETY PRECAUTIONS

FOR

FIRE AND SALVAGE PUMP MODEL P-250

PRESTART

1. Mix the proper fuel mixture and fill tank.

2. Connect the hose assembly from the fuel tank to the plug provided on the control panel.

3. Remove thread protectors and attach suction, exhaust, three-way gate valve and suction hoses. Make sure the

suction hose slopes continuously downward from the pump intake.

4. Mount foot valve on the end of the suction hose. Make certain the foot valve is completely submerged during the

entire period the pump is to be operated.

START

1. Pump fuel to carburetor by pressing the pushbutton on the tank several times until resistance is felt. Do not pump

after resistance is felt, as damaged diaphragm may result.

2. Place the water outlet valve in the closed position.

3. Pull the choke knob to the extended position. Turn the high and low speed knobs on the control panel three-quarters

of a turn to the left from the closed position.

4. Pull the starting rope rapidly. After the engine starts and runs a few seconds, push the choke in toward the control

panel.

5. Check the pressure gage 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 sixteen feet.

"CAUTION" - 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 suction connections and hose couplings, and try priming

again.

6. When pressure shows on gage, open up gate valve slowly, allowing water to enter discharge hose.

7. Adjust carburetor high speed dial to the best operating position. For slow speed adjustment, slow engine to idle by

partially closing throttle with stop button.

8. Adjust water pressure with screw driver (see technical manual).

9. While the engine is running, occasionally check water pressure.

STOP

1. Press the "STOP" button on the control panel.

2. See technical manual for storage instructions.

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