Patent attributes
A motor grader includes a work implement supported by a frame, a controller, and a circle drawbar assembly for controlling the work implement. The circle drawbar assembly includes a drawbar frame, a circle member coupled to the drawbar frame, and a drive arrangement coupled to the drawbar frame and the circle member for rotation thereof about the circle axis. The drawbar arrangement a first hydraulic cylinder and a second hydraulic cylinder pivotally coupled to the drawbar frame at a first location and a second location, respectively, on their respective first portions, and pivotally coupled to the circle member at a common third location on their respective second portions. A control arrangement extends and retracts the hydraulic cylinders in timed relationship to rotate the circle member about the circle axis.
