Vertical Crankshaft Front Tine Tiller
13
5.22. The tapered roller bearing can be pressed off of
the bottom of the worm shaft. See Figure 5.22.
5.23. Inspect the bearings for roughness or obvious
damage. Replace them if necessary.
5.24. Replace the shim washers above the sealed
bearing, followed by a new seal.
See Figure 5.24.
NOTE:
Protect the lip of the new seal on installation.
5.25. Secure the pulley adapter and sheave half to the
worm shaft using the heavy washer and cap
screw. Do not torque the screw or apply thread
locking compound.
Figure 5.22
Figure 5.24
Bearing
Shim washers
Oil seal
5.26. Test fit the worm shaft assembly in the housing.
Check end-play. End play should be 0. 0-.014”
(.36 mm). See Figure 5.26.
NOTE:
The closer to zero end play, the better.
5.27. Add or remove shims (p/n 736-0266 and 736-
04186) to achieve correct end-play. Generally,
this will not require adjustment.
5.28. Remove the worm shaft from the housing, fixture
it in a bench vise, apply thread-locking com-
pound such as Loctite 242 (blue) to the threads
of the cap screw securing the sheave, and
tighten it to a torque of 250-270 in-lb. (28-30 n-
m). See Figure 5.28.
5.29. Reposition the worm shaft assembly in the hous-
ing.
5.30. Position the first tine shaft thrust washer in the
housing.
Figure 5.26
Figure 5.28