MTD 240 Series Operator's Manual page 9

Adjustments
Wheels
The tiller is shipped with the wheel adjusted such that the
unit sits level. Before tilling, the wheel must be raised. To do
this, remove the clevis and cotter pins, raise the wheel to the
desired position, then reattach pins to secure, Figure 4-2. For
transporting the tiller, reverse the steps to lower the wheel.
Cotter
Figure 3-6
SECTION
3 -- ASSEMBLY& SET-UP 9