![background image](http://html1.mh-extra.com/html/troy-bilt/21a-630b063/21a-630b063_service-manual_1172810021.webp)
Troy-Bilt Small Frame Tillers
17
NOTE:
Two paper clips with small 90° bends at
the end work well for external shim removal. See
Image Below
7.35. Measure the overall thicknesses of the shims on
each side using a dial caliper. See Figure 7.35.
7.36. Record the thicknesses of the shims, Right
_____, Left _____.
7.37. Make certain the vice is secure.
90°
Paper Clips
Shim Removal Tools
Figure 7.35
Shims
Dial Caliper
7.38. Drive the wheel shaft to the right, forcing the
bronze wheel shaft bushing out of the transmis-
sion housing using a block of wood and a large
hammer. See Figure 7.38.
NOTE:
The inner spacer will be damaged by the
Hi-Pro key.
7.39. Remove the bronze bushing and spacer from
the right side of the wheel shaft.
NOTE:
The lubrication cut a ways on the bronze
bushing face in during assembly. See Image
Below.
7.40. Slide the wheel shaft back into the housing until
the Hi-Pro key contacts the wheel shaft worm
gear.
7.41. Rotate the wheel shaft worm gear until the Hi-
Pro key slides into the key way.
Figure 7.38
Bronze Bushing
Inner Spacer
2” x 4”
Hammer
Hi-Pro Key
Wheel Shaft
Bronze Bushing
Cut A Way
Bronze Bushing Cut A Ways