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 F3Y 1. Replace personnel heater fuel pump (WP 0600 00, WP 0601 00, or WP 0602 00). 2. Verify no faults found. GY 1. Remove heater control box (WP 0613 00). 2. Measure resistance between lead ends of heater output jack (1) pin A (2) and ON/OFF/START switch terminal 14 (3). 3. Does multimeter read 0 ohms? GYN 1. Replace faulty lead (WP 0312 00). 2. Verify no faults found. G2Y 1. Replace heater ON/OFF/START switch (WP 0614 00). 2. Verify no faults found. HY 1. Remove heater control box (WP 0613 00). 2. Measure resistance between HI/LO switch terminals 12 (1) and 13 (2). 3. Does multimeter read 0 ohms? HYN 1. Replace heater HI/LO switch (WP 0614 00). 2. Verify no faults found. 0069 00-10