TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 POWER CONTROL ENCLOSURE A1 DC INPUT/OUTPUT INOPERATIVE (M1068A3 ONLY)—Continued 0090 00 A2Y 1. Set MASTER SWITCH to OFF. 2. Install cable W38 plug P7 (1) on Power Control Enclosure jack J28 (2). 3. Remove ten screws (3) and lockwashers (4), and lower faceplate (5). Discard lockwashers. 4. Set MASTER SWITCH to ON. 5. Measure voltage between terminal X1 (6) of relay K6 (7) and ground. 6. Does multimeter read 22 volts DC or more? YES NO A2YN 1. Replace circuit 44A lead (WP 0829 00). 2. Verify no faults found. 0090 00-7