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 10Y 1. Turn HEATER SWITCH to OFF (see your -10). 2. Does blower remain on? 10YN 1. Heater does not purge. 2. Notify your supervisor. 11Y 1. Listen to heater until blower shuts off. 2. Does blower shut off in less than 5 minutes? 11YN 1. Faulty heater flame detector switch. 2. Notify your supervisor. 12Y 1. Heater is operating properly. 2. No faults found. BY 1. Remove heater indicator cover lens (1) and bulb (2). 2. Measure resistance between bulb center contact and base. 3. Does multimeter read 0-5 ohms? BYN 1. Replace heater bulb (WP 0614 00). 2. Verify no faults found. 0069 00-3