DO NOT remove a pressure switch. You'll damage a pump if it does not have a by pass facility.
Many of the pumps can re-camed to give different psi ratings. My Alltec pro Plus had a 135psi pump, but Alltec re camed it themselves to give a more reliable 100psi pump.
I believe that the same can be done with some Pump Tec pumps too, but you may also need to change other components eg. the spring in the pressure regulator to name but one.
Safe and happy cleaning
The Ken
Safe and happy cleaning
The Ken