TM 5-4320-306-10Table 2-1. Operator's Controls and Indicators - ContinuedKeyControl or IndicatorFunction3Ether start kitUsed to help start engine when the air temperature is toocold for normal start. Operated by a control knob onbottom of ether cylinder. Mounted on right side of thecontrol panel housing.4ALTERNATOR lightLights when battery is charging. It may light briefly afterstarting the engine, and should go out with continuedoperation.5ENGINE OIL PRESSURE gageIndicates engine oil pressure in psi. Electrically connectedby a wire to the engine. Graduated in 30 psi (206.7 kPa)increments from 0 to 120 psi (0 to 826.8 kPa).6PANEL LIGHTS switchSwitch used to turn panel lights on and off. Push switch upfor bright light, down for dim light.7TACHOMETER/HOURMETERIndicates engine speed in revolutions per minute (rpm)gage and maintains a running total of engine operatinghours to tenths of an hour. Graduated in 500 rpmincrements from 0 to 4000 rpm. Time meter will record upto 9999.9 hours of operation.8BATTERY VOLTMETERIndicates battery voltage. gage2-2
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