A robotic mower (10) comprises a height adjustment assembly (130), comprising a height adjustment motor (140) configured to adjust a height of a motor bracket via rotation of a height adjustment screw (136) driven by the height adjustment motor (140). Control circuitry (12) is configured to control operation of the height adjustment motor (140) for positioning of the motor bracket based at least in part on information received by the control circuitry (12). The height adjustment assembly (130) further comprises a screw engagement nut (210) operably coupled to the motor bracket, the screw engagement nut (210) having teeth configured to engage threads (220) of the height adjustment screw (130) and, responsive to rotation of the height adjustment screw (136), move up or down along a length of the height adjustment screw (136).
