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

TROUBLESHOOTING CHART (continued) - TM-9-2350-287-20-1_421

TROUBLESHOOTING CHART (continued) - TM-9-2350-287-20-1_423

TM-9-2350-287-20-1 Carrier Ammunition Tracked M992A21 (2350-01-352-3021) EIC:AE6 Manual
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2-19. TROUBLESHOOTING CHART (continued). x. NBC SYSTEM (continued). (1) NO FAN OPERATION FROM M2A2 AIR PURIFIER (continued). CONTINUED FROM C D. 1. Reconnect NBC wiring harness 12330296 to NBC control box J2 connector. 2. Disconnect wire harness 12376405, wire 415 from NBC control box J1 connector. 3. Place multimeter red lead in wire 415 socket and ground black lead. 4. Turn MASTER switch ON (refer to TM 9- 2350-287-10). 5. Check for 24 ± 3 vdc. 6. Turn MASTER switch OFF (refer to TM 9- 2350-287-10). Is voltage indicated? CONTINUED AT STEP E I E. 1. Reconnect wire harness 12376405, wire 415 to NBC control box connector J1. 2. Disconnect wire harness 12376405, wire 10 from driver’s bulkhead. 3. Place red lead of multimeter in wire 82 socket wire harness 12353403 and ground black lead. 4. Turn MASTER switch ON (refer to TM 9- 2350-287-10). 5. Check for 24 ± 3 vdc. 6. Turn MASTER switch OFF (refer to TM 9- 2350-287-10). Is voltage indicated? Continued on next page 2-370 TM 9-2350-287-20-1

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