How do you increase pressure and adjust differential on water pump?

Have a old pump connected to the well with not enough pressure and it tends to drop real low before kicking back on. There is two springs with screws going through them to adjust tension on spring. One spring is large and the other is small, both are place above an metal plate in which it looks as if the spring push against it.



I am not sure which one will increase pressure and which on is the differential, as well as, which way to turn them.



This is an old pump settiing on top of a small tank. I have primed pump accordingly and have ran all new pipe. So no leaks are visible.How do you increase pressure and adjust differential on water pump?#1 is the nut on the larger post. #2 is the other nut.

Turn #1 CW to raise cut on %26amp; off pressures.

Then turn #2 CW to raise cut off pressure only.How do you increase pressure and adjust differential on water pump?YOU HAVE A JET PUMP. THEY ARE JUNK. THE SWITCH IS PROBABLY A 30/50 SWITCH. LOOK UNDER THE COVER IT TELLS YOU WHAT IT IS. FIRTS T SET THE PRESSURE YOU NEED A WORKING PRESSURE GAUGE IN THE SYSTEM . ONCE YOU HAVE THAT YOU CAN ADJUST YOUR SWITCH. START BY ADJUSTING CUT OUT PRESSURE.OPEN A FAUCT AND GET PUMP TO KICK ON.AFTER IT STARTS,SHUT FAUCET SEE WHAT PSI IT KICKS OFF AT. TURN CENTER SCREW CLOCKWISE TO INCREASE PRESSURE TO THE MAXIMUM PRESSURE OF SWITCH. ONCE YOU GET THAT SET THEN ADJUST CUT-IN PRESSURETURN ON FAUCET SEE WHERE PUMP STARTS IF IT STARTS LOWER THAN CUT-IN PRESSURE TURN CLOCKWISE IF STERTS HIGHER TURN COUNTER CLOCKWISE.

ittwit

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