2-2. OPERATOR CONTROLS AND INDICATORS - continued .
Table 2-7. Air System Controls and Indicators
Control or Indicator
Air Compressor ON/OFF Controller
Energizes motor start/stop circuit at pressure switch.
Starts and stops compressor automatically at the required
pressures. Compressor starts at 60 psi, and stops at 120
Provides safety relief if air pressure in tank goes above 150
Air Pressure Gage
Indicates the air pressure in the tank.
Air System Isolation and Air
Provides for isolation of, drainage of, and Service Valves
service access to the air system.
Vacuum System Controls and Indicators. Figure 2-8 and Table 2-8 list the controls and indicators for the