AUXILIARY POWER UNIT FAILS TO CRANK (cont)

AUXILIARY POWER UNIT FAILS TO CRANK (cont) - TM-9-2350-292-20-1_82

AUXILIARY POWER UNIT FAILS TO CRANK (cont) - TM-9-2350-292-20-1_84

TM-9-2350-292-20-1 Carrier Ammunition Tracked M992A1(NSN 2360-01-362-3021) EIC:AE6 Manual
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TM 9--2350--292--20--1 0009 00--5 AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED 0009 00 Is continuity present? 1. Remove control box rear panel (WP 0247 00). 2. Set APU GEN switch OFF (TM 9--2350--292--10). 3. Place one multimeter lead on control box receptacle pin A and the other lead on receptacle pin C. 4. Momentarily hold PREHEAT switch in MOM ON position (TM 9--2350--292--10). Check for continuity. no yes no yes K L CONTINUED ON NEXT PAGE 1. Disconnect lead 65 from switch S1. 2. Disconnect lead 4W123--5 from switch S4. 3. Place multimeter leads across switch S1 connector pins. 4. Momentarily hold START switch in MOM ON position (TM 9--2350--292--10) and check for continuity. Is continuity present? Go to Step P. Replace START switch (WP 0247 00). Verify fault is cor- rected. CONTINUED FROM STEP J

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