An implement having a frame for towing by an agricultural vehicle, a lifting arm pivotally connected toward a first end of the frame, a support arm pivotally connected at a first end to a second end of the arm, a working implement carried from a second end of the support arm, a support located between a first end of the lifting arm and the frame which has a working surface. The support element includes a main body with connected first and second support surfaces, a third support surface spaced from the first support surface, a first displaceable element with a contact surface and an opposed support surface, and located between the first and third support surfaces, and a second displaceable element with a first contact surface and an opposed support surface, and located between the second support surface and the third support surface.

An implement having a frame for towing by an agricultural vehicle, a lifting arm pivotally connected toward a first end of the frame, a support arm pivotally connected at a first end to a second end of the arm, a working implement carried from a second end of the support arm, a support located between a first end of the lifting arm and the frame which has a working surface. The support element includes a main body with connected first and second support surfaces, a third support surface spaced from the first support surface, a first displaceable element with a contact surface and an opposed support surface, and located between the first and third support surfaces, and a second displaceable element with a first contact surface and an opposed support surface, and located between the second support surface and the third support surface.

An electric work vehicle includes a work device, a battery, a motor drivable on electric power supplied by the battery, a travel device drivable by the motor, and a hydraulic pump positioned next to the motor and drivable by the motor to supply operating fluid to an operating mechanism of the work device.

A control arrangement for an arrangement of hydraulically couplable machines has an interface for hydraulic coupling of the machines, and a hydraulic machine for supplying pressure medium to at least one hydraulic consumer of the machines in accordance with requirements. An electronic control device is configured, in accordance with a load of the consumer, to generate an electronic control signal, which can be converted by a transducer of the control arrangement into a hydraulic control signal, in accordance with which the hydraulic machine can be operated.

A control arrangement for an arrangement of hydraulically couplable machines has an interface for hydraulic coupling of the machines, and a hydraulic machine for supplying pressure medium to at least one hydraulic consumer of the machines in accordance with requirements. An electronic control device is configured, in accordance with a load of the consumer, to generate an electronic control signal, which can be converted by a transducer of the control arrangement into a hydraulic control signal, in accordance with which the hydraulic machine can be operated.

A method for determining a mass of an implement includes providing a rear powerlift having at least one upper link and at least one lower link and a support structure disposed at the rear of a utility vehicle. The method includes defining an angle (Ψ) between the upper link and a vehicle horizontal line, an angle (φ) between the lower link and the vehicle horizontal line, an angle of inclination (θ) of a vehicle horizontal line relative to a terrestrial horizontal line, a path (LV) representative of a connection along the lower link between the support structure and the implement, and a force (F.sub.U) impinging on a connection between the upper link and the implement and acting along the upper link. The mass is determined by at least one of the angle (Ψ), the angle (φ), the angle of inclination (θ), the path (LV), and the force (F.sub.U).

A method for determining a mass of an implement includes providing a rear powerlift having at least one upper link and at least one lower link and a support structure disposed at the rear of a utility vehicle. The method includes defining an angle (Ψ) between the upper link and a vehicle horizontal line, an angle (φ) between the lower link and the vehicle horizontal line, an angle of inclination (θ) of a vehicle horizontal line relative to a terrestrial horizontal line, a path (LV) representative of a connection along the lower link between the support structure and the implement, and a force (F.sub.U) impinging on a connection between the upper link and the implement and acting along the upper link. The mass is determined by at least one of the angle (Ψ), the angle (φ), the angle of inclination (θ), the path (LV), and the force (F.sub.U).

In one embodiment, a frame member; a toolbar coupled to the frame member, the toolbar parallel to, and rearward of, the frame member; a row unit coupled to the toolbar; and an actuator coupled between the frame member and the toolbar, the actuator configured to rotate the toolbar based on a sensed position of the toolbar.

In one embodiment, a frame member; a toolbar coupled to the frame member, the toolbar parallel to, and rearward of, the frame member; a row unit coupled to the toolbar; and an actuator coupled between the frame member and the toolbar, the actuator configured to rotate the toolbar based on a sensed position of the toolbar.

A working vehicle includes: a vehicle body; a lifting device provided on the vehicle body; a first setting member to set a reference position in a height direction of the working device coupled to the lifting device; a lifting operation member to be operated to raise and lower the lifting device; a first lifting control unit to perform reference lifting control to raise or lower the lifting device so that the working device is located at the reference position; and a second lifting control unit to stop the reference lifting control when the lifting operation member is operated during work by the working device and to raise or lower the lifting device in response to the operation of the lifting operation member. The first lifting control unit performs control to return the lifting device to a position corresponding to the reference position when the operation of the lifting operation member is released after the reference lifting control is stopped.