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 0014 01--7 Change 2 YES NO 1. Engage variable speed fan drive override switch (see your -10). 2. Does fan still fail to rotate? 1. Re pl ace VSFD controller (WP 0250 01). 2. Verify no faults found. BY BYN YES NO 1. Stop engine (see your -10). 2. Install jumper wire on wiring harness (P/N 12474786) terminals E3 and E4. 3. Start engine (see your -10). 4. Does fan rotate? 1. Go to CY (WP 0014 01 -9). B2Y B2YN YES NO 1. Stop engine (see your -10). 2. Remove ventilating fan drive belt (WP 0243 00). 3. Manually rotate ventilating fan drive shaft pulley (1). 4. Does fan spin freely? 1. Faulty fan drive gearbox. Beyond unit maintenance repair. 2. Notify supervisor. B3Y B3YN E O VERHEAT S ( NEW VSF D CONF IGURAT ION) - Co n t in u e d ENGIN 0014 01