A trailing arm assembly includes a frame bracket, a first frame, a parallel linkage, an adjustable biasing member, and a second frame. The frame bracket can include a first connection portion and a second connection portion. The parallel linkage pivotably connects the frame bracket and the first frame via a first pivot and a second pivot on the second connection portion of the frame bracket and a third pivot and a fourth pivot on the first frame. The adjustable biasing member pivotably connects to the frame bracket at a first end and pivotably connected to the parallel linkage at a second end, wherein the adjustable biasing member is configured to provide a downward force on the first frame. The second frame is connected to the first frame via a second parallel linkage.

A trailing arm assembly includes a frame bracket, a first frame, a parallel linkage, an adjustable biasing member, and a second frame. The frame bracket can include a first connection portion and a second connection portion. The parallel linkage pivotably connects the frame bracket and the first frame via a first pivot and a second pivot on the second connection portion of the frame bracket and a third pivot and a fourth pivot on the first frame. The adjustable biasing member pivotably connects to the frame bracket at a first end and pivotably connected to the parallel linkage at a second end, wherein the adjustable biasing member is configured to provide a downward force on the first frame. The second frame is connected to the first frame via a second parallel linkage.

By providing a hydraulic system for configuring an angle of rotation for smoothing tools of a harrow that is predetermined for a tilling session, hydraulic pressure of the hydraulic system may be maintained (and not adjusted) to allow the hydraulic system to actuate during the tilling session by tilling forces encountered by the smoothing tools. As a result, the angle of the smoothing took may change during the tilling session, thereby allowing excessive plant residue encountered by the smoothing tools to be passed over to minimize plugging or bunching.

An apparatus and system for adjustably controlling the position and depth of row cleaner wheels in no-till planting applications, the apparatus comprising a frame, a piston movably secured at the top to the frame, first and second sets of parallel arms disposed on either side of the piston and movably secured at one end to the frame and at the other end to a hub stem, and a set of piston arms each movably secured at the top to one of the first or second set of parallel arms and at the other end to the bottom of the piston.

A harrow attachment for a tillage implement includes a harrow drawbar mounting at least one rank of harrowing tools. A pivot link pivotally couples the harrow rank to the drawbar so it can trip by pivoting upward toward the drawbar from a home position in which the harrow rank is farthest away from the drawbar. A downforce spring is coupled to the drawbar and in a variable length state when the harrow rank is tripped to apply a return biasing force to the harrow rank. An adjustment mechanism couples the spring to the harrow rank and/or the pivot link in one of a plurality of adjustment locations in each of which the harrow rank is in the home position and the spring is in a fixed length state in which the biasing force is removed.

An agricultural implement includes a frame, a ground-engaging tool supported on the frame, and a sensor. Additionally, the implement includes a sensor support assembly configured to support the sensor relative to the frame. The sensor support assembly includes a first support arm extending along a longitudinal axis of the from a first end to a second end, with the first end coupled to the frame and the second end coupled to the sensor. Moreover, the sensor support assembly includes a second support arm extending along a longitudinal axis from a first end to a second end, with the first end coupled to the frame and the second end arm coupled to the sensor. In addition, an oblique angle is defined between the longitudinal axis of the first support arm and the longitudinal axis of the second support arm.

An agricultural implement includes a frame, a ground-engaging tool supported on the frame, and a sensor. Additionally, the implement includes a sensor support assembly configured to support the sensor relative to the frame. The sensor support assembly includes a first support arm extending along a longitudinal axis of the from a first end to a second end, with the first end coupled to the frame and the second end coupled to the sensor. Moreover, the sensor support assembly includes a second support arm extending along a longitudinal axis from a first end to a second end, with the first end coupled to the frame and the second end arm coupled to the sensor. In addition, an oblique angle is defined between the longitudinal axis of the first support arm and the longitudinal axis of the second support arm.

Systems and methods relating to the replacement of specific parts in farm equipment to thereby adjust the farm equipment's capabilities. To modify the ground clearance of farm equipment, especially sprayers with a strut type suspension, the spindles of the suspension system along with the air spring absorber are replaced. The original spindles are replaced with longer spindles while the air spring absorber is replaced with one that allows for an increased range of travel. As well, the fixed linkage arms that connect the air height control valves to the suspension system are also replaced with longer arms. These longer linkage arms may be of a fixed length or they may be of an adjustable length.

An agricultural implement includes: a chassis; a hitch connected to the chassis; and a harrow carried by the chassis. The harrow includes: a tine frame having at least one clamp tab; and at least one tine clamped to the tine frame by the at least one clamp tab, the at least one tine including a clamped portion with a pair of opposite ends and a pair of vertically descending teeth, each of the vertically descending teeth being connected to a respective end of the clamped portion.