TM 5-2420-231-23-1
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CHECKING OUTPUT OF FRONT SECTION CONTINUED
Figure 56. Flowmeter.
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9. Decrease engine speed to idle and stop engine (TM 5-2420-231-10).
10. Divide flow reading at 2,000 psi (13,789 kPa) by the flow reading obtained in step 8. Multiply this answer by
100 to obtain percent efficiency of pump. If efficiency is less than 70 percent, replace pump. If efficiency of
pump is at least 70 percent, the pump is good.
END OF TASK