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 A3Y 1. Measure voltage between terminals X1 (1) and X2 (2) of relay K6 (3). 2. Does multimeter read 22 volts DC or more? YES NO A3YN 1. Faulty relay K6 in Power Control Enclosure. Beyond unit maintenance repair. 2. Notify supervisor. A4Y 1. Measure voltage between terminal A1 (1) of relay K6 (2) and ground. 2. Repeat measurement between terminal A2 (3) and ground. 3. Does multimeter read 22 volts DC or more for both measurements? YES NO A4YN 1. Faulty relay K6 in Power Control Enclosure. Beyond unit maintenance repair. 2. Notify supervisor. 0090 00-8