Abstract: A motor grader has an ordinary direction of travel, has a forward end and a rearward end as defined by the ordinary direction of travel, and has two opposed sides. At least one set of front wheels is steerably mounted on the opposed sides of the motor grader adjacent the forward end, with one front wheel in each set mounted on each opposed side of the motor grader. At least one front wheel in each set of front wheels is movably mounted to the motor grader and can be selectively positioned such that each front wheel on one side of the motor grader is further away from the rearward end than the other front wheel in that set.

Abstract: A edge for attaching to a moldboard, having a rearwardly protruding trailing wear plate is disclosed. This device can be manufactured as one piece incorporating the standard edge and additional trailing wear plate or can be in the form of a bolt-on trailing wear plate that would become a component of a standard moldboard edge. The edge is applicable to motor graders, snowploughs or any other machine or attachment that performs similar functions. The trailing wear plate prolongs edge life, reduces grader bounce, enhances grader stability, reduces operator fatigue, allows greater moldboard control, enables greater grading speed and when these factors are combined offer substantial increased efficiency.

Abstract: A motor grader has an ordinary direction of travel, has a forward end and a rearward end as defined by the ordinary direction of travel, and has two opposed sides. At least one set of front wheels is steerably mounted on the opposed sides of the motor grader adjacent the forward end, with one front wheel in each set mounted on each opposed side of the motor grader. At least one front wheel in each set of front wheels is movably mounted to the motor grader and can be selectively positioned such that each front wheel on one side of the motor grader is further away from the rearward end than the other front wheel in that set.

Abstract: A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferably pressurized by grease and a grease fitting is provided for each cylinder to provide convenient access, to allow service by the operator. Preferably the cylinders are located in a generally closed cavity between the bearing support holder and the slide bearing.

Abstract: A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferably pressurized by grease and a grease fitting is provided for each cylinder to provide convenient access, to allow service by the operator. Preferably the cylinders are located in a generally closed cavity between the bearing support holder and the slide bearing.

Abstract: The moldboard support assembly for a motor grader reinforces the rear face of the moldboard by a series of vertical ribs. Upper and lower slide rails are secured to the ribs at a position outwardly of the rear face of the moldboard. This produces a series of gaps between adjacent ribs and between the rear face of the moldboard and the slide rails. These gaps allow material to clear away from the slide rails and thereby reduce bearing contamination of the slide rails.

Abstract: A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferrably pressurized by grease and a grease fitting is provided for each cylinder to provide with convenient access, to allow service by the operator. Preferrably the cylinders are located in a generally closed cavity between the bearing support holder and the slide bearing.

Abstract: An intuitive control for a motor grader controls the blade high lift assembly by adjustment of a miniature representation available at the operator's station. This miniature representation allows the direction of adjustment of various hydraulic components to be made by moving the representation in the desired directions. The control is intuitive in that it corresponds to the actual high lift assembly. A similar miniature representation can be used for controlling the steering of the motor grader.

Abstract: A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferrably pressurized by grease and a grease fitting is provided for each cylinder to provide with convenient access, to allow service by the operator. Preferrably the cylinders are located in a generally closed cavity between the bearing support holder and the slide bearing.

Abstract: A motor grader control arrangement uses a joystick control arrangement to control the operating functions of the motor grader. Two joystick controllers are provided on opposite sides of an operator's chair and the most convenient movement of each joystick controller, for example, fore-aft, side to side, and right and left rotation, are assigned to the most common grader adjustments. Each controller also includes an offset control surface with a series of thumb actuated press buttons for adjusting a given hydraulic component in a positive or negative response. The forward face of each joystick controller can include finger actuated press buttons. The distribution of the control functions between joystick controllers maintains similar activity to void operator fatigue in one hand. This also provides better operator control.

Abstract: An intuitive control for a motor grader controls the blade high lift assembly by adjustment of a miniature representation available at the operator's station. This miniature representation allows the direction of adjustment of various hydraulic components to be made by moving the representation in the desired directions. The control is intuitive in that it corresponds to the actual high lift assembly. A similar miniature representation can be used for controlling the steering of the motor grader.

Abstract: The moldboard support assembly for a motor grader reinforces the rear face of the moldboard by a series of vertical ribs. Upper and lower slide rails are secured to the ribs at a position outwardly of the rear face of the moldboard. This produces a series of gaps between adjacent ribs and between the rear face of the moldboard and the slide rails. These gaps allow material to clear away from the slide rails and thereby reduce bearing contamination of the slide rails.

Abstract: A highlift adjusting mechanism for the blade of a motor grader uses the traditional twin highlift cylinders connected to the motor grader by means of bell cranks. A rigid link member joins lower ends of the bell cranks and includes a number of locking ports therein. The link member is pivotally connected to the bell cranks by a specialized arrangement which additionally defines a further locking port. In the preferred form, the link member is secured to the bell cranks by pin members which include a cavity in one end thereof sized to receive the locking pin. With this arrangement, the bell cranks can be maintained closer to the frame of the grader and improved visibility is achieved.

Abstract: A support arrangement for a blade of a construction machine is disclosed where the blade is located to one side of the construction machine. The support arrangement includes two support towers spaced in the length of the frame of the machine with these support towers accommodating variation in the elevation of the blade. The blade is pivotally secured at a forward end thereof to one of the support structures and secured adjacent the other end of the blade to the other support structure by means of two hydraulic cylinders which extend outwardly from the support structure. These hydraulic cylinders also include an arrangement for controlling the angle of the two hydraulic cylinders relative to the connected support structure. The arrangement for controlling the angle of the two hydraulic cylinders accommodates limited, rapid upward movement of the blade.