TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
Page 419 of 858
TM 9-2350-277-20-1 PERSONNEL HEATER MALFUNCTIONS—Continued 0086 00 B3Y 1. Remove heater control box (WP 0701 00). 2. Check continuity between circuit breaker terminals 16 (1) and 17 (2). 3. Does multimeter read 0 ohms? YES NO B3YN 1. Replace heater circuit breaker (WP 0702 00). 2. Verify no faults found. B4Y 1. Check continuity between lead ends, from circuit breaker terminal 17 (1) to indicator light terminal 3 (2). 2. Does multimeter read 0 ohms? YES NO B4YN 1. Repair/replace faulty lead (WP 0382 00 or WP 0702 00). 2. Verify no faults found. B5Y 1. Replace indicator light assembly (WP 0702 00). 2. Verify no faults found. 0086 00-5 Change 1