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TM   5-2815-241-34&P CAM   FOLLOWER   ASSEMBLY   -   CONTINUED ACTION LOCATION ITEM REMARKS INSPECTION   - CONTINUED 10.  Cam follower lever (1) Valve  cam  follower roller  (2) a. Inspect for breaks, cracks, or out-of- round   condition. If  broken,  cracked,  or  out-of-round, replace. b. Using dial bore gage, measure inside diameter at several points for wear. If  larger  than  0.503  Inch  (12.83 mm),  replace. New  valve  cam  follower  roller  inside diameter  should  be  0.5005  to  0.5015 inch  (12.713  to  12.738  mm). c. Using  a  1-  to  2-inch  micrometer, measure outside diameter at several points. NOTE If  smaller  than  1.248  inches  (31.71 mm),  replace. New  valve  cam  follower  roller  outside diameter  should  be  1.2490  to  1.2500 inches  (31.72  to  31.75  mm). Steps  11  to  14  are  typical  for  all  cam  follower  rollers,  bushings,  and  levers. 11. 12. 13. Roller  pin  bore  (4) Valve cam follower roller  (2) a. Using  0-  to  1-inch  micrometer,  check inside  and  outside  diameters  for roundness. If more than 0.002 inch (0.05 mm), out  of  round,  replace. b. Using  0-  to  1-inch  micrometer,  meas- ure ends of roller for squareness to inside  diameter  and  parallelism  to  each other. If more than 0.004 inch (0.10 mm), replace. Cam  follower bushing   (3) Using dial bore gage, measure Inside diameter. If more than 0.752 inch (19.10 mm), using  arbor  press  and  ST-249  man- drel  and  block,  remove  and  discard. Using dial bore gage, measure inside diam- eter of roller pin bore. If  more  than  0.4997  inch  (12.892 mm),  replace. 2-258


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