Jan 09, 2018 - 05:51 AM
The pressure switch on the pump is set to shut off at 55psi.
If the switch or by-pass are adjusted too much, the by-pass and switch shut-off can overlap and the pump will not shut off.
Screwing the switch screw in clockwise will raise the shut-off pressure. Unscrewing the switch screw counter clockwise will lower the pump shut-off pressure.
Screwing the by-pass screw in will raise the pressure at which the by-pass starts and raise the full bypass pressure.
Unscrewing the by-pass screw counter clockwise will lower the pressure at which by-pass starts and lower the full by-pass pressure.
WARNING: If full by-pass is reached before the shut-off setting, the pump will not shut off. Full bypass pressure setting should be at least 10 psi higher than pump shut off pressure.