TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
Page 594 of 858
TM 9-2350-277-20-1 TACHOMETER MALFUNCTIONS—Continued 0116 00 2Y 1. Stop engine (see your -10). 2. Remove pulse tachometer (WP 0867 00). 3. Manually rotate pulse transducer input (1) 4. Observe pulse transducer output (2). 5. Does output rotate without binding? YES NO 2YN 1. Install tachometer cable on tachometer. 2. Replace pulse tachometer (WP 0867 00). 3. Verify no faults found. 3Y 1. Remove tachometer adapter (WP 0863 00). 2. Manually rotate tachometer adapter input (1) 3. Observe tachometer adapter output (2). 4. Does output rotate without binding? YES NO 3YN 1. Replace tachometer adapter (WP 0863 00). 2. Install tachometer cable onto tachometer. 3. Verify no faults found. 4Y 1. Install tachometer adapter and pulse tachometer (WP 0867 00 and WP 0863 00). 2. Replace tachometer cable assembly (WP 0864 00). 3. Verify no faults found. AY 1. Does tachometer fail to give steady reading? YES NO AYN 1. Replace tachometer (WP 0862 00). 2. Verify no faults found. 0116 00-2