TROUBLESHOOTING CHART (continued) - TM-9-2350-287-20-1

TROUBLESHOOTING CHART (continued) - TM-9-2350-287-20-1_347

TROUBLESHOOTING CHART (continued) - TM-9-2350-287-20-1_349

TM-9-2350-287-20-1 Carrier Ammunition Tracked M992A21 (2350-01-352-3021) EIC:AE6 Manual
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TM 9-2350-287-20-1 2-19. TROUBLESHOOTING CHART (continued). u. AUXILIARY POWER UNIT (continued). (1) ENGINE CRANKS BUT FAILS TO START (continued). I CONTINUED FROM G CONTINUED AT STEP K H. 1. Reconnect wire harness 12330248 plug to APU control box. 2. Install APU control box (para 7-22). 3. Disconnect lead 419 shell connectors where harnesses 12330248 and 12330252 connect. 4. Place red probe of multimeter in lead 419 shell connector of wire harness 12330252 and ground black lead. 5. With the aid of an assistant turn MASTER switch ON (refer to TM 9-2350-287-10). 6. Check for 24 ± 3 vdc. 7. Turn MASTER switch OFF (refer to TM 9- 2350-287-10). Is voltage indicated? Repair lead 419 or replace harness 12330248 (para 7-71) Verify problem is s o l v e d . 1. 1. Reconnect lead 419 of wire harness 12330252 to lead 419 of wire harness 12330248. 2. Disconnect lead 419 from circuit breaker No. 8 output of circuit breaker panel no. 1 Continued on next page 2-296

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