plow head 24 movement of the plow head 24 relative to the hitch box 22 can be effected in any of a variety of ways for example manually hydraulically or using electrical power in a manual system the drivers 44 and 46 can include manually operated ball and screw linear actuators or the like in a hydraulic system the drivers 44 and 46 can include linear hydraulic cylinders operated from a motor pump unit mounted in the hitch box 22 in an electrical system the drivers 44 and 46 can include electrically powered rotary winches mounted on the hitch box 22 in a hydraulic or electrical driver system electrical power may be provided directly from the battery of the vehicle 30 or depending upon power requirements from a cigarette lighter type power receptacle of the vehicle 30 in many instances it is desirable for the plow to have a dedicated power supply in the form of a battery pack power supply 48 that can be carried within the vehicle 30 power supply 48 may include a battery charger energized from a twelve volt dc source of a 120 volt ac source or both in addition for convenient operation by the user a pendant is provided including a handheld or other small control unit 50 located in the.