Adjustments And Servicing Procedures; Pressure Switch - Atlas Copco SF 1 Instruction Book

6

Adjustments and servicing procedures

6.1

Pressure switch

Description
The pressure switch (PS - See section
The stopping and starting pressures are the opening and closing pressures of the switch.
Pressure switch
The stopping pressure is controlled by adjusting screw (2). Turn the screw clockwise to raise the stopping
pressure, anti-clockwise to lower it.
The pressure difference between starting and stopping is adjusted by means of adjusting screw (1). Turn
the screw anti-clockwise to reduce the pressure difference, clockwise to increase it.
30
Flow
Adjustments may only be carried out when the switch is pressurized.
diagram) determines the operating pressure of the compressor.
Instruction book
2920 7110 11