Flint & Walling CPJS Shallow Well - Manual (Page 21)

21
PUMP PRIMING & STARTUP
5. With pump operating at high pressure, open two or more
faucets and slowly unscrew the flow control screw until
maximum flow is obtained. This steady pressure will be
minimum operating pressure and should agree with the
pressure shown below. The flow control screw diverts
the proper amount of water to operate the ejector. ( Fig.
5)
The correct control valve setting will depend on the type of well installation and pressure switch setting for the particular
pump.
NOTE: Flow control is not required for shallow well applications.
IMPORTANT: If the pump fails to prime within five minutes:
Turn power off at the breaker box. Look for leaks or a milky color in the discharged water, which indicates an air leak. Re-
prime if necessary, following steps 1 through 5 above. Reset breaker at the breaker box. All connections must be water
and air tight in order for pump to operate.
IL1409
5
AVERAGE OPERATING PRESSURE CHART 7
HP Pressure Setting
1/3
1/2
3/4
1
1-1/2
24 PSI
27 PSI
38 PSI
46 PSI
53 PSI
CARE AND MAINTENANCE
MAINTENANCE
Lubrication
The pumps and motors require no lubrication. The ball
bearings of the motor have been greased at the factory
and under normal operating conditions should require no
further greasing.
Freezing
1. Drain the entire system if there is danger of freezing.
A drain plug is provided at the bottom of the pump
case for this purpose. (Fig. 1)
IL0192
1
PREVENT PUMP
DAMAGE!
Remove plug in
freezing weather