An agricultural implement has front flotation wheels with a significantly increased diameter, increasing flotation and improving rolling characteristics, especially in soft soil conditions. The implement has a frame supported on front and rear wheels. Front flotation wheels are pivotally mounted to the frame about vertical axes. A hitch tongue is pivotally attached to the frame about a vertical hitch pivot axis. A wheel control mechanism connects the front flotation wheels to the hitch tongue, and is configured such that when the hitch tongue is in a neutral position the front flotation wheels roll in the operating direction, and pivoting the hitch tongue causes the front flotation wheels to pivot in the same direction.

A steering system for an agricultural machine includes a first and second wheel assembly. Each wheel assembly includes an axle assembly including an axle, wheels rotatably connected to the axle, and a double-action hydraulic cylinder. In some embodiments, the double-action hydraulic cylinder is configured to pivot the wheels in either direction to indicate a direction of turn. In some embodiments, the double-action hydraulic cylinder of the first wheel assembly is hydraulically linked in its operation to an operation of the double-action hydraulic cylinder of the second wheel assembly.

The present disclosure relates to a steering system for an agricultural machine. The steering system includes a first and second wheel assembly. Each wheel assembly includes an axle assembly including an axle, wheels rotatably connected to the axle, and a double-action hydraulic cylinder. In some embodiments, the double-action hydraulic cylinder is configured to pivot the wheels in either direction to indicate a direction of turn. In some embodiments, the double-action hydraulic cylinder of the first wheel assembly is hydraulically linked in its operation to an operation of the double-action hydraulic cylinder of the second wheel assembly.

A working vehicle includes a traveling body supported by a traveling apparatus, a steering portion that steers the traveling body, a lifting/lowering apparatus that lifts and lowers a working machine, and a controller configured to execute a turning control including setting a working machine descent start line, calculating coordinates of the traveling body based on a steering operation and a traveling distance of the traveling apparatus, and in a case where the traveling body has reached the working machine descent start line in a state in which the traveling body has completed the turning, starting lowering the working machine by the lifting/lowering apparatus.

A road transport system of a header of a harvesting machine includes two pairs of wheels and two wheel frames. Each wheel frame is connected to a pair of wheels. The two wheel frames are rotatable between a field operation position and a road transport position. A header of a harvesting machine includes two pairs of wheels and two wheel frames. Each wheel frame is connected to a pair of wheels. The two wheel frames are rotatable between a field operation position and a road transport position. A method of converting a header of a harvesting machine from a field operation mode to a road transport mode includes: releasing wheel frames of the header from the header; rotating the wheel frames from a field operation position to a road transport position; and enabling kingpin steering connections between at least one of the wheel frames and a pair of wheels.

The objective of the present invention is to provide a work vehicle where an operator can, on the work vehicle side, confirm which working machine is engaged and set which working machine to engage. A tractor, to which a working machine can be mounted, is provided with: a liquid crystal panel selectably displaying an engageable working machine mounted and displaying the currently engaged working machine so as to be identifiable; an operation unit (encoder dial, enter button, and command buttons) for carrying out selection and determination operations for the working machine displayed on the liquid crystal panel; and a control device that, when a determination operation is carried out by the operation unit for a desired working machine, disengages the currently engaged working machine, and configures the working machine for which the determination operation has been carried out to be engaged.

The present disclosure relates to a steering system for an agricultural machine. The steering system includes a first and second wheel assembly. Each wheel assembly includes an axle assembly including an axle, wheels rotatably connected to the axle, and a double-action hydraulic cylinder. In some embodiments, the double-action hydraulic cylinder is configured to pivot the wheels in either direction to indicate a direction of turn. In some embodiments, the double-action hydraulic cylinder of the first wheel assembly is hydraulically linked in its operation to an operation of the double-action hydraulic cylinder of the second wheel assembly.

A method and system is disclosed for automatic detection of implement working width of an implement on a vehicle. The method includes tracking location of the vehicle; determining if the vehicle is making substantially parallel passes; if the vehicle is making substantially parallel passes the method also includes determining distances between consecutive passes; and calculating a calculated implement working width based on the distances between consecutive passes. A location sensor attached to the vehicle can be used for tracking the vehicle. Determining if the vehicle is making parallel passes can include grouping the location sensor readings into pass lines that each include sensor readings defining a single pass line; and determining if a current pass line is parallel to a prior pass line. Vehicle heading can be used for determining if pass lines are substantially parallel. Known implement working widths can be used to verify calculated implement working widths.

A working vehicle includes a traveling body supported by a traveling apparatus, a steeling portion that steers the traveling body, a lifting/lowering apparatus that lifts and lowers a working machine, and a controller configured to execute a turning control of setting a working machine descent start line in a coordinate system having a position of the traveling body at a start of turning as an origin, calculating coordinates of the traveling body based on a steering operation of the steering portion and a traveling distance of the traveling apparatus, and in a case where the traveling body has reached the working machine descent start line in a state in which the traveling body has completed the turning, starting lowering the working machine by the lifting/lowering apparatus.

An agricultural implement has front flotation wheels with a significantly increased diameter, increasing flotation and improving rolling characteristics, especially in soft soil conditions. The implement has a frame supported on front and rear wheels. Front flotation wheels are pivotally mounted to the frame about vertical axes. A hitch tongue is pivotally attached to the frame about a vertical hitch pivot axis. A wheel control mechanism connects the front flotation wheels to the hitch tongue, and is configured such that when the hitch tongue is in a neutral position the front flotation wheels roll in the operating direction, and pivoting the hitch tongue causes the front flotation wheels to pivot in the same direction.