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 VEHICLE COMPARTMENT HEATER MALFUNCTIONS — Continued 0085 00 DY 1. Remove heater control box (WP 0431 00). 2. Measure resistance between lead ends from circuit breaker terminal 17 (1) and RUN-OFF-START switch terminal 15 (2). 3. Does multimeter read 0 ohms? DYN 1. Repair faulty lead (WP 0294 00). 2. Verify no faults found. 2DY 1. Measure resistance between lead ends from RUN-OFF-START switch terminals 21 (1) and 14 (2). 2. Does multimeter read 0 ohms? 2DYN 1. Repair heater switch jumper lead between terminal 21 and 14 (WP 0294 00). 2. Verify no faults found. 3DY 1. Replace heater RUN-OFF-START switch (WP 0472 00). 2. Verify no faults found. 0085 00-7 Change 1