A cultivator includes at least one cultivator row unit, each of the at least one cultivator row unit having a support assembly for securing the cultivator row unit to a tool bar, a shank, an earth working tool operatively connected to the shank, and at least one assembly for providing discrete incremental adjustment for at least one of (a) an angle of the earth working tool, (b) a depth of the earth working tool, and (c) a gauge wheel depth.

A gauge arm (and concomitant method of retrofitting an existing gauge arm) comprising an arm portion, a receptacle portion for receiving two or more sealed bearings, and two or more sealed bearings inserted into the receptacle portion. The receptacle portion is smooth bore, with the sealed bearings being press fit into same. The sealed bearings can be of different dimensions, such as one being a gauge wheel and closing wheel bearing, and one a round bore grain drill bearing. The receptacle portion then comprises a stop within the bore thereof.

A gauge arm (and concomitant method of retrofitting an existing gauge arm) comprising an arm portion, a receptacle portion for receiving two or more sealed bearings, and two or more sealed bearings inserted into the receptacle portion. The receptacle portion is smooth bore, with the sealed bearings being press fit into same. The sealed bearings can be of different dimensions, such as one being a gauge wheel and closing wheel bearing, and one a round bore grain drill bearing. The receptacle portion then comprises a stop within the bore thereof.

A soil measure, such as a soil cone index, and a vehicle index indicating the amount of force the vehicle exerts on the ground as it travels over the ground, are obtained and compared to identify a soil damage score. The soil damage score can be mapped over a field and an agricultural vehicle can be controlled based upon the soil damage score.

The present disclosure refers to a method for operating a user terminal (7) of an agricultural machine, comprising providing a user terminal (7) in a control system (3) of an agricultural machine, the user terminal (7) connected to a power supply and configured to transmit, through a control bus (6), control signals to functional elements (10a; 10b) of the agricultural machine; enabling operation of the user terminal (7), after a period of time the user terminal was turned-off before, comprising enabling a user control mode of operation of the user terminal (7); running software applications in the user terminal (7); enabling a display device of the user terminal (7); and enabling the control bus (6), thereby, operating the control bus (6) in a bus control mode allowing for transmission of the control signals through the control bus (6); controlling operation of one of the functional elements (10a; 10b) of the agricultural machine in the user control mode of operation; in response to a user input, generating present control signals; transmitting the present control signals to the control unit assigned to the one of the functional elements (10a; 10b) through the control bus (6); and operating the functional elements (10a; 10b) according to the present control signals; disabling the user control mode of operation and enabling a standby mode of operation for the user terminal (7), comprising continuing with running one or all of the software applications in the user terminal (7); disabling the display device of the user terminal (7); and disabling the control bus (6); and re-enabling the control mode of operation for the user terminal (7). Further, an agricultural machine is provided.

Systems, methods and apparatus for adjusting the depth of a trench opened by a row unit of an agricultural planter. The row unit includes a trench depth adjustment assembly configured to modify the furrow depth. In one embodiment, the depth adjustment assembly may include a gear box having one or more gears which engage with a gear rack. The gear box may be pivotally connected to a depth adjustment body supporting a rocker that adjusts upward travel of gauge wheel arms. In another embodiment, the depth adjustment assembly may include a depth adjustment arm having a screw receiver that cooperates with a driven screw that adjusts the position of the depth adjustment arm acting on the gauge wheels to adjust trench depth.

Systems, methods and apparatus for adjusting the depth of a trench opened by a row unit of an agricultural planter. The row unit includes a trench depth adjustment assembly configured to modify the furrow depth. In one embodiment, the depth adjustment assembly may include a gear box having one or more gears which engage with a gear rack. The gear box may be pivotally connected to a depth adjustment body supporting a rocker that adjusts upward travel of gauge wheel arms. In another embodiment, the depth adjustment assembly may include a depth adjustment arm having a screw receiver that cooperates with a driven screw that adjusts the position of the depth adjustment arm acting on the gauge wheels to adjust trench depth.

A coupling device for attaching a power lift of a tractor to an attachment includes a link mounting region having coupling units for the articulation of an upper link and two lower links of the power lift, and an apparatus mounting region for fixing the attachment. A coupling unit assigned to the upper link is movable in a translatory manner in a vertical direction running perpendicular to a transverse direction. The coupling units are movably disposed on a device base of the coupling device, and the coupling units assigned to the two lower links are movable in a translatory manner in the transverse direction.

A coupling device for attaching a power lift of a tractor to an attachment includes a link mounting region having coupling units for the articulation of an upper link and two lower links of the power lift, and an apparatus mounting region for fixing the attachment. A coupling unit assigned to the upper link is movable in a translatory manner in a vertical direction running perpendicular to a transverse direction. The coupling units are movably disposed on a device base of the coupling device, and the coupling units assigned to the two lower links are movable in a translatory manner in the transverse direction.

A flexible header for an agricultural vehicle including a frame, at least one cutter bar movably coupled to the frame, and an adjustment system coupled to the frame and the at least one cutter bar. The adjustment system is configured to adjust a position of the at least one cutter bar. The adjustment system includes at least one linkage assembly. The linkage assembly includes a first link member and a second link member. Each of the first and second link members are rotationally coupled to the frame. The adjustment system also includes at least one fluid spring coupled to the first link member and the second link member such that the at least one linkage assembly translates a substantially linear movement of the at least one fluid spring to adjust the at least one cutter bar.