TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-1 PERSONNEL HEATER MALFUNCTIONS — Continued 0069 00 D2Y 1. Measure resistance between lead ends from ON/OFF/START switch terminals 21 (1) and 14 (2). 2. Does multimeter read 0 ohms? D2YN 1. Repair heater switch jumper lead between terminal 21 and 14 (WP 0312 00). 2. Verify no faults found. D3Y 1. Replace heater ON/OFF/START switch (WP 0614 00). 2. Verify no faults found. EY 1. Check to see if heater exhaust is cold. 2. Is heater exhaust cold? EYN 1. Defective flame detector switch. 2. Notify your supervisor. 0069 00-7