TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 LEGEND 1. Screw 2. Lockwasher 3. Washer 4. Cover 5. Gasket 6. Screw 7. Washer 8. Housing 9. Gasket 10. O-ring 11. Plug 12. Plug 13. Plug 14. Shaft 15. Plug 16. Pin 17. Locknut 18. Screw 19. Bushing 20. Rivet 21. Lever 22. Lever 23. Lever 24. Lever 25. Nut 26. Screw 27. Bushing 28. Socket 29. Lever Figure 13-38.  Rocker Arm Shaft and Rocker Arm Assembly, Exploded View position and tighten nut with torque wrench to 25 to 35 foot-pounds (34.6 to 41.5 joules). (9)     Using  a  wire  gauge,  check  to  make  sure there   is   a   minimum   of   0.020   inch   (0.51 mm)   clearance   between   crosshead   and valve spring retainer. (10)   Refer to the Operator/Crew and Organizational    Maintenance    manual    for adjustment and reassembly instructions. 13-26. PUSHRODS  AND  TAPPETS.    To  inspect  and replace the pushrods and tappets, refer to figures 13-39 and 13-40, and proceed as follows: a.     Removal, Code A (Figure 13-39) (1)   Lift crossheads. (2)   Remove pushrods by lifting them from their tappets. (3)   Remove  lockwires  (3)  and  (10)  and  copper washers   (17)   holding   tappet   guides   (16). Discard copper washers. (4)   Lift  tappets  (8)  and  (15)  from  block  with  a long wire hook or other suitable tool. 13-75