Mower deck height of cut adjustment mechanism

A mower deck height of cut adjustment mechanism includes a shaft having a caster wheel mounted to the shaft, and a screw rotatably threaded to the shaft to move the shaft vertically relative to an inner cylinder to adjust a mower deck height of cut. The inner cylinder is pivotable on a vertical axis within an outer cylinder. A locking plate may lock the screw to the inner cylinder to disable adjustment of the mower deck height of cut.