Abstract: A mower may include a frame, a cutting deck suspended from the frame, and a cut height adjustment system configured for raising and lowering the cutting deck to a plurality of cut height positions. The cut height adjustment system may include a rotatable, stepped cylinder having a plurality of steps wherein each of the plurality of steps corresponds to one of the plurality of cut height positions, and a pawl may be configured for engagement with the plurality of steps in order to set the cutting deck at a desired cut height position. The stepped cylinder may be mounted to a rotatable base plate, and a knob may be attached to an upper end of a shaft connected to the base plate. Each of the plurality of cut height positions may be manually selectable by rotation of the knob.