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 BY 1. Turn all vehicle power OFF (see your -10 and TM 11-7010-256-12&P). 2. Remove ten screws (1) and lockwashers (2), and lower faceplate (3). Discard lockwashers. 3. Set MASTER SWITCH to ON 4. Measure voltage between positive (4) and negative (5) terminals on meter M2 (6). 5. Does multimeter read 22 volts DC or more, and the same as meter M2? YES NO BYN 1. Adjust meter M2 needle to match multimeter reading. 2. If meter cannot be adjusted, replace DC meter M2 (WP 0827 00). 3. Verify no faults found. 0090 00-11