Power your Cub Cadet I series mower off if it is turned on.
Use a socket wrench to loosen the bolts on both the left and right control arms of your Cub Cadet I series mower. The control arms are the two steering arms that are used to control the movement of your zero-turn mower. These arms are oriented in a vertical fashion when in use, and there is one on either side of the driver's seat. Each arm has three bolts that must be loosened with a socket wrench to fully adjust the Cub Cadet I series mower.
Move each steering arm from right to left after loosening the bolts with the wrench. Adjust each arm as desired then re-tighten the one bolt closest to the base of each arm to set the arm's left-to-right positioning.
Adjust each of the steering arms from front to back as desired then tighten the remaining bolts with the socket wrench once you are satisfied with the placement of the arms. Ensure, before tightening the bolts, that the arms are adjusted to provide for ease of use when you are seated in the driver's seat.