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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 A5Y 1. Have helper depress DC TO INVERTERS button (1) on Power Control Enclosure panel. 2. Measure voltage between terminal 1 (2) of circuit breaker CB2 (3) and ground. 3. Repeat measurement between terminal 2 (4) and ground. 4. Does multimeter read 22 volts DC or more for both measurements? YES NO A5YN 1. Replace circuit breaker CB2 (WP 0828 00). 2. Verify no faults found. 0090 00-9