TM 9-2350-256-34-1VAPOR CAN EXPLODE FROM ELECTRIC ARC.DO NOT OPERATE ‘PUMP BY CONNECTING ORDISCONNECTING CLIPS. USE A SWITCHEQUIPMENT REQUIRED:1.DESCRIPTION:0-10 GPH ± 2% OF SCALEREADING.0-10 PSI.FLOWMETER2.ADJUSTABLE FLOWREGULATOR3.4.RELIEF VALVE10 PSI.PRESSURE GAGE (TAP0-10 PSI ± 2% OF SCALESHALL BE IN A 0.5READING.INCH I. D. DISCHARGELINE, 6-8 INCHESFROM PUMP DISCHARGEFITTING)5.RESERVOIRTO SUIT (FLUID LEVELMUST BE MINIMUM OF 2INCHES AB0VE PUMP).6.ADJUSTA8LE DCPOWER SOURCEDC VOLTMETEROUTPUT CAPABILITY O-28VDC @ 5 AMPERES,MUST MEASURE 17.5 - 28VDC TO WITHIN ANACCURACY OF O. 25%.HOSE, PIPING ANDFITTINGS7.8.TEST FLUIDSPST TOGGLE SWITCHMS39061-1 (24 VDC,24 AMP).FUEL VV-F-800.TO SUIT.NOTETO DETERMINE POLARITY OF THE TERMINAL ASSEMBLY PINS, FACE THE PUMP AND MOUNTASSEMBLY SO THAT THE DISCHARGE FITTING IS TO THE RIGHT AND THE TERMINAL TO THELEFT WITH THE LONG CENTER (POLARIZING) PIN AT THE TOP OF THE TERMINAL AND THESCREW AT THE BOTTOM. THE POSITIVE (HOT) PIN IS ON THE LEFT SIDE OF THE TERMINALAND THE NEGATIVE (GROUND) PIN IS ON THE RIGHT SIDE.TEST AFTER REASSEMBLY OF FUEL PUMP1.ASSEMBLE TEST EQUIPMENT TO PUMP WITH SWITCH (8) OPEN AND SUBMERGE PUMP IN TEST FLUID (FUELVV-F-800) SO THAT TEST FLUID COVERS PUMP BY AT LEAST 2 INCHES.2. ADJUST POWER SUPPLY FOR 27.5 ± 0.1 VDC.CLOSE SWITCH (8) AND READJUST POWER SUPPLY IFNECESSARY.3. OPERATE PUMP AT 27.53.75 PSI.4.REPEAT STEP 2 FOR AN5.OPERATE PUMP AT 18 ±± 0.1 VDC.RATED FLOW SHOULD BE 22029 GPH (3.67 ± 0.15 GPM)-AT18 + 0.1 VDC POWER SUPPLY.0.1 VDC.RATED FLOW SHOULD BE 80 ± 3 GPH (1.33 + .05 GPM) AT 2.50 PSI.TA015997Figure 3-7. Electric fuel pump test.3-14
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