TM 9-2350-267-10OPERATING THE APUStartingCAUTIONTo avoid damaging radio components turn off allradio switches before starting APU.NOTEFor operation in extremely cold weather (0° to -65° F),see Section IV of this chapter.1. Turn off all electrical and radio switches.2. Turn vehicle MASTER switch ON.3. Make sure APU GENerator switch (1) is OFF.4. Turn FUEL SHUTOFF switch (2) ON. The LOW OIL PRESSure lamp (3) willlight until APU engine starts.5. Turn PREHEAT switch (4) to MOMentary ON. Hold switch ON for 20 secondsif outside air temperature is above 55° F. Hold switch ON for one minute ifoutside air temperature is between 0° and 55° F. If air temperature is below0° F, refer to Section IV of this chapter.2-116
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