HALE P250 FIRE PUMP MANUAL MOD
You can find additional information on the operation and maintenance of the P-250 pumpĪnd P-250 MOD 1 in chapter 9930 of the Naval Ships' Technical Manual and in the manufacturer's technical manual furnished with the pump. Operate the pump once each month while it is in temporary stowage. Replace the thread protectors on all connections clean and dry the entire unit.ġ0. Allow the water to drain from the pump casing.ĩ. Disconnect the suction, discharge, and exhaust hoses.ħ.
Allow the engine to run until fuel is burned out of the carburetors.Ħ. Stop the engine by disconnecting the fuel hose. Slow the engine speed and move the throttle lever to the START position.Ĥ. Flush the pump by operating the unit in freshwater for 5 minutes.Ģ. Upon completion of the pump operation, always prepare the pump for temporary storage in the following manner.ġ. If the engine does not start immediately, prime the carburetor and crank the engine until it starts. Simply shift the START/RUN switch to the START position and pull the manual starter handle. If the engine is still warm from previous operation, the start-up procedure will be modified. Press the STOP button on the control panel, and keep it depressed until the engine comes to a complete stop. To stop the unit, gradually return the throttle lever to the start position. While the engine is running, occasionally check the discharge to ensure it remains at the desired pressure.ġ2. Adjust the engine throttle lever and open discharge valve slowly to obtain the desired pump discharge pressure.ġ1. Pull the manual starter handle and switch to the RUN position.ġ0. Set the throttle lever and START/RUN switch to the START position.ĩ. Prime the pump by operating the manual priming pump until water is discharged out of the priming pump discharge.Ĩ. Pull the engine carburetor primer two to three times to prime the carburetor.ħ. Prime the fuel/oil injection pump by compressing the fuel and oil priming bulbs until they are firm.Ħ. Connect the fuel hose to the fuel tank and open the vent on the fuel tank cap.ĥ. Attach the fuel tank to the top of the pump frame. Check the fluid levels in the fuel tank and oil tank. Close the pump discharge valve and make certain that the tee-handle screw on the rapid priming port is tight.ģ. Connect hoses to suction, discharge, and exhaust connections.Ģ. Open the discharge valve momentarily to allow trapped air to escape.ġ. If the pump is operated for more than 15 to 20 seconds with the discharge valve closed, it may begin to cavitate and speed up due toĪccumulation of air in the casing.
If pressure does not show on the pressure gauge, stop the pump and check all suction hose connections and gaskets. The tank consist of a single hose fitting, a fuel tank cap with an integral fuel gauge, a manually operated vent screw, and an explosion suppression arrangement (Explosafe).ĭo NOT run the pump more than 20 seconds unless pressure shows on the The gas tank is a 6-gallon tank mounted on top of the pump frame. The exhaust hose carries the toxic engine exhaust gases to the atmosphere. The pump must not be operated in a confined space unless the exhaust hose is connected to the pump. The foot valve should be completely submerged when the pump is operating. The suction screen should rest in clear water-not in mud or debris, which might be drawn into the pump. If the pump fails to draw water or if the discharge nozzle shows and uneven stream, look for a poor connection allowing air leakage into the suction side.
The strainer should be completely submerged in water. Be sure that proper-size gaskets are used at all of the suction connections. It is hand primed up to a suction lift of 16 to 20 feet.īefore operating the P-250 Mod 1, make sure that all of the suction hose connections between the foot valve and the pump are tight. The P-250 Mod 1 can pump 250 gpm at 125 psig. When used for dewatering, it draws a large volume of waterįrom flooded compartments and discharges it into the sea. When used for fire fighting, the P-250 Mod 1 draws water from the sea and pumps the water through suitable hoses and nozzles at a high pressure. It is used in fire fighting and in dewatering operations.
HALE P250 FIRE PUMP MANUAL PORTABLE
The P-250 Mod 1 is a gasoline-driven portable pump with an internal-combustion engine.