How do I adjust the CUT-IN and CUT-OUT settings of a Pressure Switch?

The following is a step by step procedure for adjusting your Pressure Switch.  All Pressure switches have two operating points known as the cut-in (Reset Point) and cut-out (Trip Point) settings. The cut-in point is for the falling pressure and the cut-out point is for the rising pressure. Every switch also includes a differential or a range based on the cut-in and cut-out points. Both the cut-in and cut-out on most switches can be adjusted if certain applications require that. For example: if the cut-in is 40 PSI and the cut-out is 60 PSI the differential is 20 PSI.