TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 INFRARED HEADLIGHT(S) DOES NOT OPERATE—Continued 0037 00 CY 1. Measure resistance between beam selector switch jack (1) pins C (2) to A (3) and between pins C (2) to B (4). Multimeter should read 0 ohms once and infinity once. 2. Click beam selector switch and repeat above test. Multimeter should indicate infinity once and 0 ohms once. 3. Is beam selector switch operating properly? YES NO CYN 1. Replace beam selector switch (WP 0273 00). 2. Verify no faults found. 2CY 1. Faulty main wiring harness circuit 514 or 515. 2. Notify your supervisor. 0037 00-5/6 blank