Section 8 - Adjusting The Pressure Switch; Oil Less Air Compressor: 20/26 Psig Riser Mount And 50/70 Psig Tank Mount - Reliable QRM2-25115-40 Installation, Operation And Maintenance Manual

Section 8 - Adjusting the Pressure Switch

8.1 Oil Less Air Compressor: 20/26 PSIG Riser Mount and 50/70 PSIG Tank Mount

STEP 1:
Adjust the cut-in and cut-out pressure by turning the
pressure, counter-clockwise to decrease pressure.
STEP 2:
Adjust the
pressure*. Clockwise increases pressure, counter-clockwise decreases pressure.
QRM2- Models with Tank
(RASCO Part Number 6990006746)
Factory Set at 50 PSIG Cut-IN / 70 PSIG Cut-OUT
*Differential Pressure is defined as the difference between cut-out and cut-in pressure. Turning the
differential pressure screw clockwise increases the differential pressure, which increases the cut-out
pressure without changing the cut-in pressure.
Differential Pressure Screw
Main Calibration
to change the cut-out pressure without affecting the cut-in
QRM2- Models without Tank
(RASCO Part Number 6990021904)
Factory Set at 20 PSIG Cut-IN / 26 PSIG Cut-OUT
11
Screw; clockwise to increase