GORMAN-RUPP 62-1/2E13-4A084, Техническое руководство, Страница: 43 / 107

RUN-STOP SWITCH
FUEL SHUTOFF VALVE
NOTE. IF ENGINE IS HOT FROM RUNNING UNDER HEAVY LOAD,
ALLOW IT TO IDLE FOR SEVERAL MINUTES BEFORE STOP-
PING. THIS WILL ALLOW HEAT TO DISSIPATE EVENLY,
PREVENTING WARPING OF ENGINE PARTS.
STEP 1.
PLACE RUN-STOP SWITCH IN STOP POSITION.
STEP 2. TURN OFF FUEL SHUTOFF VALVE.
Figure 2-4. Stopping the pump.
Figure 2-5.
Not applicable
STEP 1.
STEP
2.
STEP 3.
NOTE.
STEP 4.
OPERATE ENGINE SPEED CONTROL TOWARD ENGINE TO RUN ENGINE AT
GOVERNED SPEED.
WITH THE ENGINE RUNNING OPERATE EXHAUST PRIMER LEVER TO CLOSED
POSITION.
OPERATE EXHAUST PRIMER VALVE TO OPEN POSITION. THIS WILL DRAW
WATER THROUGH SUCTION LINE INTO PUMP.
WITH 20 FOOT SUCTION LIFT, PRIMING SHOULD OCCUR WITHIN TWO
MINUTES. LESS TIME SHOULD BE REQUIRED IF PUMP HAS LESS SUCTION
LIFT.
RUN ENGINE AT FULL GOVERNED SPEED UNTIL A SPRAY OF WATER IS
EJECTED FROM THE EXHAUST PRIMER AND SOUND OF PUMP INDICATES
FULL PUMPING LOAD. SHUT EXHAUST PRIMER VALVE IMMEDIATELY AND
OPERATE EXHAUST PRIMER
LEVER TO OPEN POSITION.
STEP 5.
STEP 6.
STEP 7.
MOVE ENGINE SPEED CONTROL AWAY FROM ENGINE TO REDUCE SPEED,
FILLING DISCHARGE PIPING SLOWLY TO REDUCE SHOCK OF INITIAL
FILLING.
WHEN DISCHARGE PIPING IS FILLED, OPEN PRESSURE GAGE SHUTOFF
VALVE. OPERATE ENGINE SPEED CONTROL TO INCREASE ENGINE SPEED
UNTIL DISCHARGE PRESSURE GAGE INDICATES THE DESIRED DIS-
CHARGE PRESSURE.
TO CHANGE PUMPING SPEED OR DISCHARGE PRESSURE, ADJUST
SETTING OF ENGINE SPEED CONTROL. MAXIMUM PUMPING IS DE-
LIVERED WHEN ENGINE OPERATES AT GOVERNED SPEED.
Figure 2-6. Operating the pump exhaust primer.
2-5