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
