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 MASTER SWITCH ON INDICATOR DOESN’T LIGHT—Continued 0048 00 4Y 1. Remove cable assembly 12349858 circuit 459 plug (1) from MASTER SWITCH indicator jack (2) 2. Measure resistance between cable assembly circuit 27 plug (3) and circuit 459 plug (1). 3. Does multimeter read 0 ohms? YES NO 4YN 1. Repair/replace cable 12349858 (WP 0382 00), (WP 0289 00). 2. Verify no faults found. 5Y 1. Replace indicator light assembly (WP 0286 00). 2. Verify no faults found. BY 1. Turn MASTER SWITCH to OFF. 2. Inspect carrier batteries (see your —10). 3. Are batteries in proper maintenance and well charged? YES NO BYN 1. Service carrier batteries (see your -10). 2. Verify no faults found. 0048 00-3