Quantcast Installation (Contd) - TM-9-2815-225-34P_668

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TM 9-2815-225-34&P 3-83.  VALVE CROSSHEADS INSTALLATION AND ADJUSTMENT (Contd) LOCATION/ITEM ACTION REMARKS Installation (Contd) 4. Two locking nuts (4) and Loosen one full turn. adjusting screws (3) 5. Two exhaust valves and two Adjust as follows: intake valve adjusting screws (3) a.  Using light pressure, hold The adjustment procedure for exhaust valve crosshead (2) or exhaust valve crosshead (2) is intake valve crosshead (5) against the same for intake valve valve stem (1).  Turn exhaust or crosshead (5). intake valve adjusting screw (3) until it touches valve stem (1), but does not raise exhaust valve crosshead (2) or intake valve crosshead (5). b.  Hold adjusting screw (3) and Use a round and a flat feeler tighten locking nut (4) to 25 lb-ft gauge to check the crosshead (34 Nm). clearances (6) at four locations. Refer to illustration.  There must be a minimum of 0.025 in. (0.635 mm) clearance (6) between exhaust valve crosshead (2), intake valve crosshead (5), and valve spring retainers. c.  Recheck clearance. FOLLOW-ON TASK:  Install rocker arm housing assembly (para. 3-84). 3-638


 


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