User guide

Operation 31
3.10 Adjusting Air Pressure
3.10.1 Adjusting the Main Air Pressure
To adjust the main air pressure:
1. Verify that the facility air is connected to the main air pressure regulator inlet (Figure 3-10).
TIP For accurate pressure adjustment, lower the pressure below the desired level
and then increase to the desired pressure.
2. Rotate the knob on the main air pressure regulator counterclockwise until the main air
pressure gauge registers 0 psi.
3. Rotate the knob clockwise until the main air pressure gauge registers the air pressure value
(psi or kPa) required by the dispensing application.
 If the gauge fails to register pressure, verify that the dispensing system is connected to
the facility air source.
4. Monitor the main air pressure gauge to make sure that pressure builds at a steady rate.
Watch for dropping pressure indicating an air leak.
 If there is an air leak, identify the source, shut off the facility air, and repair the leak
before proceeding.
Figure 3-11 Main Air Pressure Regulator and Gauge
Main Air Pressure
Regulator
Main Air Pressure
Regulator Air Inlet
Main Air Pressure
Gauge