Legend for Figure 4-5 1. Screw 23. Gasket 45. Retainer 2. Lockwasher 24. Filler Cap 46. Seal 3. Clutch Guard 25. Chain 47. Bushing 4. Air Line 26. Clutch Bowl 48. Screw 5. Rotor seal 27. Sprocket 49. Washer 6. Fitting 28. Spacer 50. Shaft 7. Air Line 29. Flange 51. Key 8. Clutch Assembly 30. Screw 52. Screw 9. Plug 31. Lockwasher 53. Lockwasher 10. Screw 32. Nut 54. Retainer 11. Lockwasher 33. Lockwasher 55. Gasket 12. Screw 34. Screw 56. Spacer 13. Lockwasher 35. Case 57. Seal 14. Adapter 36. Bracket 58. Bearing 15. Gasket 37. Gasket 59. Sprocket 16. Gasket 38. Adapter 60. Key 17. Screw 39. Lockwire 61. Lock Screw 18. Lockwasher 40. Nut 62. Bearing 19. Case Cover 41. Screw 63. Screw 20. Nut 42. Setscrew 64. Lockwasher 21. Lockwasher 43. Hub 65. Retainer 22. Screw 44. Key 66. Gasket I. Loosen setscrews (42) and remove hub (43) from clutch bowl (26).  Secure key (44) to clutch bowl with masking tape to prevent its being misplaced. m. Remove  the  retainer  (45)  and  seal  (46)  from  clutch  bowl  (26).    Bushings  (47)  shall  remain  installed  unless replacement is required due to damage. n. Remove screw (48) and washer (49).  Remove flange (29) from shaft (50) and remove key (51). o. Remove screws (52), lockwashers (53), retainer (54) and gasket (55).  Remove spacer (56) and seal (57). p. Remove shaft (50), with bearings and sprocket, from case (35).  Pull bearing (58) from shaft (50) and remove sprocket (59) and key (60). q. Remove lockscrew (61) and pull bearing (62) from shaft (50).  Secure keys (51,60) in place  on  shaft  (50)  with masking tape to prevent their being misplaced. r. Remove screws (63), lockwashers (64), retainer (65) and gasket (66). 4-4.1.2  Repair.  Inspect all parts for wear and damage, paying particular attention to bearings and sprockets.  Replace any worn parts.  At assembly, install new seals and gaskets. 4-4.1.3  Assembly and Installation. a. Remove  masking  tape  from  shaft  (50)  and  remove  key  (51).    Install  sprocket  (59)  on  shaft  (50),  then  install bearings (58,62) and lockscrew (61). 4-34