Section 3: Pump Operations
Priming All Pump Systems
2020 Heli-Pump Operations Manual
(Version F)
21
We Engineer Solutions
Priming All Pump Systems
All pump models should prime within two minutes after the pump is turned on up to a height of 36 in. (91
mm). Pumps installed at height up to 5 ft. (1.52 m) may have difficulty priming. Follow the procedure
below to initiate prime. Pumps installed at suction height above 5 ft. (1.52 m) will have difficulty in holding
the prime. It is recommended that a check valve be added to the bottom of the suction tube to help maintain
the prime.
If the prime is not achieved in two minutes after turning the pump on, use the following procedure to initiate:
1.
Disconnect inlet/supply hose from the pump inlet port.
2.
Lay the pump assembly onto its back.
3.
Pour fuel to be dispensed into the pump inlet port until
completely filled.
4.
Re-attach the inlet/supply hose to the inlet port on the pump.
5.
Turn on the pump and try to dispense the fuel.
6.
If the pump still does not prime, check all connections and
hoses for any major restrictions or leaks.
7.
If no restrictions or leaks are detected, inspect the pump filter
screen and/or filter to ensure that they are not clogged with
debris and need to be serviced.
8.
If the procedures above have been followed and the pump
still fails to prime or dispense fuel, the pump motor may be
defective and should be reported to an SEI representative for
disposition.
Inlet supply port.