Location of input and output shaft components
1. Gear shift fork (3rd and 4th gears); 2. Blocking sleeve; 3. Spring pin; 4. Tip; 5. Gear shift fork (1st and 2nd gears); 6. Spring pin; 7. Control lever; 8. A rod of forks of inclusion of transfers; 9. Bearing ring; 10. 4th gear; 11. Retaining ring; 12. Gear 3rd gear; 13. Gear 2nd gear; 14. Blocking ring; 15. Retaining ring; 16. Synchronizer; 17. Synchronizer spring; 18. Synchronizer cracker; 19. Synchronizer hub; 20. Coupling of the synchronizer of a gear wheel of a backing; 21. Blocking ring synchronizer; 22. 1st gear; 23. Bearing ring; 24. Output shaft; 25. Thrust ring (4 speed gearbox); 26. Bearing ring; 27. 4th gear; 28. Blocking ring; 29. Retaining ring; 30. Synchronizer 3rd and 4th gear; 31. Synchronizer spring; 32. Synchronizer cracker; 33. Synchronizer hub; 34. Synchronizer clutch; 35. Blocking ring synchronizer; 36. 3rd gear; 37. Bearing ring; 38. Primary shaft; 39. Synchronizer; 40. Synchronizer spring; 41. Synchronizer cracker
1. Remove the assembly and clamp it securely in a vise using wood blocks to protect the shaft surface.
2. Using a puller, remove the bearings from both ends of the shaft (photo).
Remove the input shaft bearing using a puller
3. Inspect the shaft and gears for wear and damage to the grooves, contact surfaces, and teeth.
4. Inspect the bearings for wear and pitting on the cam rollers.
5. Replace all worn components with new ones.
6. Slide the bearings onto the shaft and install the assembly.