TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 ENGINE OVERCOOLS 0015 00 INITIAL SETUP: M a i n t e n a n c e L e v e l Unit Personnel Required Unit Mechanic Helper (H) R e f e r e n c e s See your -10 E q u i p m e n t C o n d i t i o n Engine stopped (see your -10) Vehicle blocked (see your -10) Trim vane lowered (see your -10) Power plant access panels open (see your -10) Power plant access rear panels removed (WP 0439 00) Driver’s power plant access panel removed (WP 0441 00) Coolant TEMP indicator operation checked (WP 0053 00) T WARNING Moving parts of power unit can seriously injure you. Clear personnel away from power unit before startup. Stay clear of moving parts when power unit is running. 1. Start engine (see your -10). 2. Observe speed of ventilating fan (1). 3. Engage thermostatic fan speed switch (see your -10) 4. Engage variable speed fan drive override switch YES NO TN 1. Stop engine (see your -10). 2. Replace thermostatic fan speed switch (WP 0231 00) 3. Replace variable speed fan 0015 00-1 (see your -10) (New Configuration). 5. Did ventilating fan speed up when switch was engaged? drive override switch (WP 0231 01) (New Configuration ). 1. 4. Verify no faults found. Change 2 (Old Configuration). (Old Configuration).