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 VEHICLE BATTERIES DISCHARGE WITH EXTERNAL AC POWER APPLIED (M1068A3 ONLY)—Continued 0103 00 3Y 1. Set AC MAIN switch to ON(TM 11-7010-256-12&P). 2. Measure voltage between terminal 2 (1) of circuit breaker CB1 (2) and anywhere on terminal block E4 (3). 3. Does multimeter read 110 volts AC or more? YES NO 3YN 1. Replace circuit breaker CB1 (WP 0828 00). 2. Verify no faults found. 4Y 1. Set DC POWER SUPPLY switch to ON (TM 11-7010-256-12&P). 2. Measure voltage between terminal 1 (1) of circuit breaker CB5 (2) to terminal block E4 (3). 3. Does multimeter read 110 volts AC or more? YES NO 4YN 1. Faulty circuit 9D. Beyond unit maintenance repair. 2. Notify supervisor. 0103 00-4