OPERATING THE APU - Continued - TM-9-2350-267-10

OPERATING THE APU - Continued - TM-9-2350-267-10_152

TM-9-2350-267-10 Carrier Personnel Full Tracked Armored M113A2 2350-01-068-4077 Carrier Command Post Light Tracked M577A2 2350-01-068-4089 Manual
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TM 9-2350-267-10 OPERATING THE APU - Continued ^6 .While holding PREHEAT switch ON, position and hold START switch (5) to MOMentary ON. Hold both switches ON until APU engine starts. NOTE if APU engine doesn’t start within one minute, release START switch (5), but continue to hold PREHEAT switch ON for another 20 seconds (in temperatures above 55° F) or one minute (in temperatures below 55° F). After allotted time, hold START switch ON again. If engine still does not start, troubleshoot APU (p 3-11). 7. When APU starts, release PREHEAT switch and START switch. CAUTION To avoid damaging the APU engine, if oil PRESSure lamp (3) remains lit after engine starts, or if it lights during APU operation, turn FUEL SHUTOFF switch (2) OFF to stop APU. Notify Organizational Mainte- nance if this problem occurs. 2-117

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