Input Shaft - MTD 450 Series Shop Manual

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450 Series Tillers

Input shaft

1. Remove the input spur gear and detent shaft assem-
bly as described in the Detent Shaft section of this
chapter. See Figure 5.53.
2. The input shaft can be easily driven out of the chain
case housing, along with the sealed bearing that sup-
ports it.
• The input shaft and bearing will be difficult to
drive back-in from outside the housing.
• The input shaft and bearing can not be driven
directly back in from inside the housing because
the bottom gear on the counter shaft over-hangs
the extruded hole that supports the bearing in the
chain case.
3. Lift the top gear and washer off of the counter shaft.
4. Double nut the top of the counter shaft.
See Figure 5.54.
5. Remove the nut, lock washer, and Belleville washer
from the bottom of the counter shaft.
6. Remove the counter shaft from the chain case.
See Figure 5.55.
NOTE: The bottom gear, and the washer beneath it,
can be left in the chain case. Pushing them
over about 1/4" (0.635 cm) will leave enough
clearance to remove and install the input shaft
and the bearing that carries it.
46
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Bottom gear on
counter shaft
(over-hangs bearing)
Figure 5.53
Input shaft
and bearing
Shift arm
Figure 5.54
Input shaft
and bearing
Shift arm
Figure 5.55
Shift arm
Input shaft bearing
Counter shaft
Bottom gear
from input shaft