AUXILIARY POWER UNIT FAILS TO CRANK (cont)

AUXILIARY POWER UNIT FAILS TO CRANK (cont) - TM-9-2350-292-20-1_88

AUXILIARY POWER UNIT FAILS TO CRANK (cont) - TM-9-2350-292-20-1_90

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--11 AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED 0009 00 CONTINUED FROM STEP Z Is continuity present? 1. Reconnect harness 3W702 P1 at bulkhead disconnect. 2. Disconnect lead 65 lead from starter relay. 3. Place one multimeter lead on harness 3W711 P1 pin E and other lead in harness 3W711 circuit 65 lead socket. Check for continuity. AA no yes Repair (WP 0290 00) or replace (WP 0648 00) harness 3W711. Verify fault is corrected. Replace starter relay (WP 0640 00). Verify fault is corrected. Is 24 V dc present? 1. Disconnect harness 3W711 lead 66 from APU engine connector at starter relay. 2. Turn MASTER switch ON (TM 9--2350--292--10). 3. Place multimeter red lead in harness 3W711 lead 66 socket and black lead to ground. Check for voltage. 4. Turn MASTER switch OFF (TM 9--2350--292--10). AB no yes Repair (WP 0290 00) or re- place (WP 0648 00) harness 3W711. Verify fault is cor- rected. CONTINUED FROM STEP U CONTINUED ON NEXT PAGE

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