2.4.2 Priming of Boost Pump

2.4 INITIAL ADJUSTMEMTS, CHECKS, MD SELF TEST.

TM-10-4320-344-10 Pump Assembly Water 600 GPM Model 609-A (NSN 4320-01-184-7494) Model 609-C (NSN 4320-01-261-6470) Model US636HCCD-1 Manual
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TM 10-4320-344-10 Figure 2-17. Priming Pumping Assemblies. 2.4.2 Priming of Boost Pump. Trapped air can cause hoseline to collapse. Trapped air could cause pressure at downline pumping station(s) to fall below required suction pressure. To prevent damage to pump, vent air from hoseline/pipeline - When the pumping assembly is to be operated as a boost pump, it will receive priming water from the upline pump; but trapped air must be released during initial startup. Refer to Figure 2-18 and vent the air from the hoseline/pipeline and pump as follows: a. Turn petcock (2) on pump discharge elbow (1) until fully open. b. Notify operator of upline pumping station to begin pump operation. 2-87 CAUTION

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