Lesson 1/Learning Event 3
LEARNING EVENT 3:
DESCRIBE THE PROCEDURES FOR
PUTTING THE 50-GPM PUMP INTO OPERATION
The instructions in this learning event are for the information and guidance of the personnel
responsible for the operation of the 50-GPM Pump. The operator must know how to perform
every operation of which the pump is capable. This learning event provides information on
starting, stopping, and operating the 50-GPM Pump.
To start the pump correctly, you must first perform the procedures in preparation for starting.
These procedures are performance of the daily preventive maintenance services (figure 4 on
pages 19 and 20) and priming the pumping unit.
Priming the Pump. To prime the pump, remove the plug from the pump body and fill the pump
body with water. Be sure the draincock is closed. Figure 3 on page 7 shows the pump body,
plug, and draincock.
Never operate the pump unit until the body has been filled with water.
Operating the pump dry will destroy the seal.
Starting the Engine. The procedure for starting the gasoline engine on the 50-GPM Pump unit
varies a little depending upon the engine with which the pump is equipped.
To start the MS 1A08-3 engine, perform the following:
Assure the engine is properly grounded.
Open the fuel shut-off valve.
Place the throttle control lever approximately 1/4 inch forward of the full idle position.
Turn on the ignition by pushing the ignition switch up.
Close the choke by turning the choke control as far to the left as it will go.
Engage the starting rope in the slot in the flange and wind the rope clockwise around the
flange. Pull to start the engine.