TM 5-4310-385-13CHAPTER 2. OPERATING INSTRUCTIONSSECTION I. DESCRIPTION AND USE OF OPERATOR'S CONTROLS AND INDICATORS2-1. OPERATOR'S CONTROLS AND INDICATORS.KeyNameLocationFunctionOnLocationMain power switchMain switch boxTurns electric power to the compressor onand off.1ON/OFF switchStarter enclosureStart and stop compressor.2RESET buttonStarter enclosurePush to reset after overload condition hastripped the protective relay on magneticstarter.3Oil level sightCompressor crankcaseShows oil level in crankcase.glass4Pressure gageAir tankShows air pressure in tank.5Drain cockBottom of air tankTo drain air and water from tank.6Shutoff valveEnd of tankTo close off air tank when air hose has tobe removed.7Inflator gageEnd of hoseTo pressurize pneumatic equipment and read airpressure.8Safety relief valveAir tankReleases air pressure in tank above 200 psi.Can be manually checked by pulling ring.Operator's Controls and Indicators2-1
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