A height control system for a front harvesting attachment, comprising a frame, at least one crop pick-up device, and a ground-conforming cutterbar which is situated on a plurality of supporting arms that can pivot about a horizontal axis and are articulated on the frame. The supporting arms can be pivoted, originating from a desired position to be set before the start of a harvesting operation, between an upper end position, which delimits a deflection of the supporting arms in the direction of the crop pick-up device, and a lower end position, wherein the upper end position has a first clearance and the lower end position has a second clearance from the desired position, wherein the desired position can be adapted, during the harvesting operation, to changing harvesting conditions and/or operating conditions depending on a deflection of the cutterbar, in order to minimize the first clearance and maximize the second clearance.

A work machine includes a chassis, and a work implement movably coupled to the chassis and configured to perform a field-engaging function. The work machine also includes an actuator coupled to the work implement and configured to adjust a position of the work implement relative to a ground surface. The work machine further includes a sensor unit configured to sense a characteristic of the work machine and communicate a signal indicative of the characteristic. The work machine also includes a communication module, and a controller in communication with the sensor unit and the communication module, the controller including a processor and memory. The controller is configured to monitor a location of the work machine, process the signal from the sensor unit to monitor the characteristic, determine whether the characteristic exceeds an acceptable range, and if so, identify an event, and assign a location to the event.

A support system for an agricultural header includes a first actuator configured to couple to a frame of the agricultural header and to a first element of the agricultural header. The support system also includes a second actuator configured to couple to the frame of the agricultural header and to a second element of the agricultural header. Furthermore, the support system includes a third actuator configured to couple to the frame of the agricultural header and to the second element of the agricultural header. The support system also includes a fluid supply system configured to provide pressurized fluid to the first actuator and to the second actuator. The third actuator is fluidly isolated from the fluid supply system, the first actuator, and the second actuator.

A hydraulically driven tractor has a header drive system including a header drive motor and a header drive pump driven by an engine for generating a source of hydraulic fluid under pressure for the header drive motor, and a ground drive system including a wheel drive motor and a wheel drive pump driven by the engine for generating a source of hydraulic fluid under pressure for the wheel drive motor. A controller receives input from sensors so as to monitor: a header drive demand value, a wheel drive demand value, an engine load value, and/or an engine RPM value for comparisons to acceptable threshold range to vary the target throttle value if outside of one of the ranges. The controller can also vary the displacement of the wheel drive pump and/or the wheel drive motor in response to variation of the target throttle value to maintain ground speed.

An agricultural apparatus comprises a propulsion unit and an implement connected to the propulsion unit. The implement comprises: (i) a main frame having a main frame weight, (ii) an operational unit; (iii) a unit support apparatus configured to interconnect the operational unit to the main frame; (iv) a height adjustment apparatus comprising a terrain contact element, the height adjustment apparatus connected to the unit support apparatus. The terrain contact element is operable to be positioned to contact the terrain surface level at a contact region such that the at least one terrain contact element supports the unit support apparatus at a vertical separation distance above the terrain surface. The height adjustment apparatus is operable to adjust the vertical separation distance of the unit support apparatus above the terrain surface and thereby adjust a vertical separation distance of the operational unit above the terrain surface.

A work vehicle includes a chassis, and a work implement movably coupled to the chassis and configured to perform a field-engaging function. The work machine also includes an actuator coupled to the work implement and configured to adjust a position of the work implement relative to a ground surface. The work machine further includes a controller in communication with an output device and a communication module. The controller is configured to monitor a location of the work machine via the communication module. The controller is also configured to load a field map from a field map database, the field map identifying at least one impact event comprising a geotagged location. The controller is further configured to display an alert via the output device in response to the location of the work machine approaching within a predetermined distance from the geotagged location.

A harvester is provided with a draper head that has a frame extending substantially across a working width of the draper head. Cutting elements are arranged at a front side of the draper head and connected to the frame. Conveying surfaces and conveying members transport cut crop from the cutting elements to a discharge location of the draper head. A reel extends transversely to a working direction of the draper head across the working width of the draper head. Reel support arms are pivotably supported on the frame and support the reel. A hydraulic adjusting drive is operatively connected to the reel support arms to pivot the reel support arms to carry out a height adjustment of the reel. A hydraulic circuit is operatively connected to the hydraulic adjusting drive and has a hydraulic valve that is able to lock the hydraulic circuit.

An agricultural implement comprises: a main frame, an operational unit interconnected to the main frame, and a height adjustment apparatus interconnected to the main frame and the operational unit. The height adjustment apparatus comprises a terrain contact element that can be positioned to contact a terrain surface such that the contact element supports the operational unit at a vertical separation distance of the operational unit above the terrain surface. The height adjustment apparatus can adjust the vertical separation distance of the operational unit above the terrain surface. A shock absorbing assembly is operationally positioned between the main frame and the terrain contact element and provides for resilient deformation in response to forces transmitted during operation to the terrain contact element, from contact with the terrain surface. The shock absorbing assembly may absorb and/or cushion forces imparted to a component of the height adjustment apparatus.

An agricultural machine including a frame, at least one operating unit connected to the frame, at least one wheel or crawler track rotatably attached to the frame to allow the movement of the machine on a supporting surface and a lifting unit operatively interposed between the frame and the wheel or between the frame and the operating unit, configured to vary the height of the operating unit with respect to the supporting surface of the machine. The lifting unit includes at least one hydraulic cylinder provided with a liner, a first and a second piston both slidingly housed inside the liner and arranged in series to define at least a first and a second chamber inside the liner, wherein the first and the second piston can be controlled independently of each other.

Systems, methods, and apparatus for controlling a position of one or more float arms in response to operation of a gauge wheel or in response to an input are described. In some instances, a float arm is moved to a selected position automatically in response to extension or retraction of a gauge wheel. In some instances, a position of a float arm in an unlocked configuration is altered in response to an input, such as a user input. In some instances, a position of the float arm is controlled in response to application of fluid pressures, such as hydraulic pressure. Fluidic pressure may be altered in response to changing a position of one or more valves.