Abstract: The invention is concerned with an improvement in a motor grader which comprises a powered vehicle having a main grader frame extending forwardly therefrom, the frame being supported adjacent its forwardmost end by ground engaging wheels, a circle drawbar mounted below the frame intermediate a power unit for the vehicle and the ground engaging wheels, a circle member mounted below the circle drawbar, gear wheels for rotating the circle member relative to the circle drawbar, a blade mounted to the circle member and therebelow, a first hydraulic cylinder rotatably mounted at a first end thereof adjacent the frame and at a second end thereof adjacent a periphery of the circle drawbar, and a pair of second hydraulic cylinders rotatably mounted adjacent a first end thereof adjacent the periphery of the drawbar and adjacent a second end thereof adjacent the frame. The improvement of the invention allows operation of the motor grader at a reduced bank cut angle of the blade to a surface being graded.

Abstract: a grader blade actuator comprises a frame, a pair of pivot arms connected to said frame, a link member pivotally interconnecting the arms, a blade member, and a diagonal fluid cylinder connecting the link member to the blade member. The blade actuator further comprises a pair of fluid lift cylinders which are of a construction sufficient for connecting each pivot arm to a respective end portion of the blade member.One or both of the lift cylinders has two or more spaced apart releasable connectors 48 and 50 or 48' and 50' which are selectively connectable to the respective pivot arm for providing vertical positioning of the blade member.