Hubs and Sleeves

a. Check that bearing surfaces are free from burrs, nicks,
    or galling. For nicks or burrs, use a fine stone or emery.
    Replace if galled.

b. Check that there is no excessive play between a hub or
    sleeve and its mating surface.

c. Check that teeth are not chipped,. broken, galled, or
    worn. Replace if damaged.

Shift Forks and Fork Shafts.

Although the first and second shift fork is the same as the third and fourth shift fork, do not mix.

a. Check that threads in bolt holes are clean and free from     damaged threads. Use a tap to clean holes. Replace
    shaft if threads are stripped.

b. Check sliding surfaces for excessive wear. Replace if
    worn.

c. Check that fork shafts are not bent, and that grooves for     detent balls are not scored. Replace if bent or worn.

Detent Balls, Dowels, and Pin

a. Check for free travel of detent pin in third and fourth
     fork shaft. Replace pin if worn. Use fine emery for
     minor scratches.

b. Check detent ball and dowels for galling. Replace if    
    damaged.

c. Check detent springs for tension. Replace if weak.