12
High Discharge Air Temperature Light
Indicates when the unit has sensed an unusually high discharge temperature, approximately 250°F.
11. Gauges
Hourmeter
Indicates actual hours of operation. Used to determine maintenance intervals.
Vacuum Gauge
Indicates the system vacuum in inches of mercury (In. HgV) below atmospheric pressure surrounding the vacuum
pump.
Air Outlet Temperature Gauge
Indicates the temperature of the air/fluid mixture as it discharges from the vacuum pump. Normal reading is 190°F to
210°F.
Air/Fluid Separator Differential Gauge
Indicates pressure differential across the air/fluid separator element. Used to determine separator element change
intervals.
Fluid Level Indicator
The fluid level indicator is a sight gauge located on the air/fluid reservoir and continually monitors the fluid level in
the air/fluid reservoir.
Vacuum Pump Fluid Filter Maintenance Indicator
Indicates when the fluid filter element should be replaced. When the white indicator piston moves from the green
zone into the red zone, the fluid filter should be serviced.