6-4 Operation
6.5 Adjusting the Air Pressure
6.5.1 Adjusting the Main Air Pressure
1. Verify that the facility air is connected to the Main Air Pressure Regulator Inlet.
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
Gauge registers 0 psi.
3. Rotate the knob clockwise until the Main Air Pressure Gauge registers 90 to 100 psi (621 to
689 kPa).
4. If the Main Air Gauge fails to register pressure, verify that the dispensing system is
connected to the facility air source.
5. Monitor the Main Air 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 fix the leak before
proceeding.
Item Description
1 Main Air Pressure Regulators
3 Main Air Pressure Gauges
Figure 6-3 Main Air Pressure Regulator and Gauge Sets
1
2
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