TM-9-2350-260-20-1-2 M60 Hull Organizational Maintenance Volume 2 Download
Page 67 of 772
TM 9-2350-260-20-1-2 2A ENGINE AND 2D ENGINE POWERPLANT TESTS (GROUND HOP) (Sheet 6 of 16) IDLE TEST: WARNING Take all necessary safety precautions to eliminate possible injury to personnel or damage to equipment. Stand clear of both transmission output flanges whenever the engine is running. Hearing protection is required. 1. Start and operate engine until engine oil and transmission oil normal operating temperatures are reached (TM 9-2350-260-10). 2. Check fabricated tachometer for indication of 700-750 rpm. If indication is not within range, adjust idle adjusting screw according to steps 3 thru 6. 3. Using 1/2 inch wrench, loosen jamnut on idle adjusting screw. 4. Using 1/2 inch wrench, adjust idle adjusting screw until 700-750 rpm shows on fabricated tachometer. 5. Using 1/2 inch wrench, tighten jamnut. 6. Install 3/16 inch end of fabricated throttle linkage adjusting gage (Fig. 3, Appendix F) between stop pin and bracket shoulder. If distance is not a minimum of 3/16 inch, notify support maintenance. 7. Check fabricated tachometer. If indication is not between 700-750 rpm, notify maintenance supervisor. Go on to Sheet 7 TA147957 5-57