Abstract: A three-point hitch suitable for operation with wide implements is constructed by substituting a pair of flotation actuators for the usual drop links that are normally coupled between a pair of rocker arms and a pair of lower draft links. These drop links are coupled to a hydraulic circuit including, according to one embodiment, individual accumulators for each flotation actuator, and according to a second embodiment, both actuators are coupled to a single accumulator. The accumulator(s) act to cause a pre-selected lifting force to be exerted by the flotation actuators so that a predetermined amount of the weight of an implement mounted to the draft links is counterbalanced, leaving a desired ground pressure being exerted by the implement during operation. When using individual accumulators, a side-to-side weight balance can be achieved since different accumulator settings may be used.

Abstract: A coupling for coupling, for example, a trailer having a drawbar (2) to a tractor with a three-point linkage device, which has two height-adjustable lower steering arms (3, 4) of which one is laterally adjustable by a lateral strut (11). A first coupling element is mounted on the rear of the tractor. The drawbar (2) is provided with a second coupling element (13). The second coupling element (13) is connectable to the first coupling element (12). The coupling has a bar 14 with two ends. Each end includes a connection element (15) to connect with the lower steering arms (3, 4) of the tractor (1). A guiding mechanism comprises two guiding pins is arranged, distanced from each other, on the bar (14). The guiding bar (14) supports the drawbar (2). The drawbar (2) is guided between the guiding pins (17). The drawbar (2) is adjustable relative to the bar (14) in the longitudinal direction.

Abstract: A motor vehicle, ATV and lawn tractor three-point hitch adapter that provides attachment of standard agricultural category one three-point hitch implements such as scraper blades, landscaping rakes or box blades. The adapter comprises of a tube that interfaces with the motor vehicle hitch receptacle, a bracket that interfaces with the category one implement's two pivot post attachment points, and a winch that interfaces with the category one implement's upper attachment point for raising and lowering the implement. The electric winch is connected to the vehicle battery and contains a switch for controlling up and down movement of the implement by the vehicle operator. The motor vehicle adapter can be also used with all-terrain vehicles and lawn tractors when a wheel assembly and hitch assembly are added. The wheel assembly comprises of a welded tube assembly that is bolted to the motor vehicle adapter, an axle, two wheels and cotter pins to hold the wheels in place.

Abstract: A tractor having a cargo box and an axle mounted hitch ball in which the hitch ball projects upward through an opening in the cargo box floor. This arrangement enables the ball to be used when the cargo box is mounted to the tractor.Furthermore, since the ball is mounted to the axle and not the cargo box, greater load carrying capacity is achieved and the hitch can be used when the box removed from the tractor.

Abstract: A hitch control system controls a hitch for coupling an implement to a utility vehicle. The hitch includes longitudinally adjustable coupling elements operable to shift or pivot the implement in a lateral direction relative to the utility vehicle. A sensor, such as a wheel steering angle sensor, senses a parameter associated with lateral or turning movements of the vehicle. A control unit automatically adjusts the length of the coupling elements as a function of the sensor signals so that the position of the implement relative to the vehicle is adapted to the curved path. This reduces the outer radius of the area over which the vehicle and implement travel when traveling along a curved path and helps avoid collisions with objects.

Abstract: An apparatus for securing an agricultural implement to a hitch receiving member of a vehicle including at least first, second and third tongue members where each tongue member forms a passageway and the members are arranged in a telescoping fashion where the second member is received within the first member passageway and the third member is received in the second member passageway, the apparatus also including at least first and second hydraulic cylinders for extending the second and third members from the first and second member passageways, respectively, wherein at least one of the cylinders is mounted externally of the members and the other cylinder may be mounted either internally or externally and including a single stage locking mechanism for locking stage members in each of the extended and retracted positions.

Abstract: A hydraulic lift device for an attaching device of a tractor which has a hydraulic pressure supply device and a hydraulic tank, comprising for each of two lower steering arms, a double acting hydraulic cylinder having a cylinder housing, a piston rod, a piston with a piston-end piston area and a piston rod-end piston area, as well as a piston-end cylinder chamber and a piston rod-end cylinder chamber. The device further comprises a first switching valve, which has at least three switching positions and four ports. The first port represents a connection to the pressure supply device. The second port represents the connection to the hydraulic tank. The third port represents the connection to the piston-end cylinder chamber of the first hydraulic cylinder and the fourth port represents the connection to the piston rod-end cylinder chamber of the second hydraulic chamber.

Abstract: A device for attaching farm implements to a tractor incorporates a top link having a central body inserted inside a sleeve. Two handles are integral with the sleeve on opposing sides and having respective projecting ends. A hook is provided on the top link for attachment to a farm implement with the hook being fixed to the central body. A joint, fixed to the central body, connects the top crossbar. A lock device locks the projecting ends of the handles inside respective seats.

Abstract: An apparatus for automatically linking a drive member of a power source and a driven member of an implement, includes two attachment pieces, one attached to the power source, and the other attached to the implement, and an attachment mechanism for automatically connecting the two attachment pieces whereby the drive member and the driven member are operably coupled.

Abstract: An attachment, primarily for a tractor having a three point hitch, has a post with a seat for a gooseneck hitch ball, and mounting brackets for a fifth wheel type hitch that permit a limited amount of pitch and roll.

Abstract: A strut is provided for a three-point hitch device used to attach farm implements to an agricultural tractor. The strut is substantially symmetrical with respect to a longitudinal axis of symmetry, and has a system for adjusting its length along the axis. The adjusting system has fast, discrete length adjustment devices, and two infinite length adjustment devices. The two infinite length adjustment devices are located on opposite sides of a dividing member positioned crosswise to the axis of the strut.

Abstract: An adjustable link assembly is provided that includes a first and a second rod each threadably engaging a bore of a body portion. A locking mechanism is slidably disposed about generally the entire length of the body portion. Locking mechanism includes an engagement portion and a lever. The lever has an eye that engages a post on the first rod to deter relative motion between the body portion and the first and second rods.

Abstract: A coupling device for mounting an agricultural implement on a tractor equipped with a belt drive, which includes two coupling halves which are connected to each other by several coupling rods, designed in such a way that no components working on the linear drive principle are needed. The lower right and left coupling rods include in each case a lower front and a lower rear rod section which are connected to each other, and which are freely movable relative to each other. One end of the lower rear rod section carries an expanded portion, which is located inside a housing of the end region of the lower front rod section. A plurality of elastically deformable equalizing bodies are inserted between the inner surfaces of the housing of the end region and the outer surfaces of the expanded portion, limiting the movement of the lower rear rod section in relation to the lower front rod section.

Abstract: An apparatus for automatically linking a drive member of a power source and a driven member of an implement, includes two attachment pieces, one attached to the power source, and the other attached to the implement, and an attachment mechanism for automatically connecting the two attachment pieces whereby the drive member and the driven member are operably coupled.

Abstract: A hitch assembly for a work machine, particularly suitable for use in a track-type tractor, is provided with a frame having a generally vertical pivot axis. A pair of draft arms are carried by the frame, with each draft arm being pivotable about a corresponding generally horizontal axis. A drawbar is carried by the frame and is pivotable about the pivot axis of the frame. The drawbar may be fixed or movable relative to the frame, and also pivots about the common pivot axis.

Abstract: A coupling system couples an implement to a utility vehicle, such as an agricultural or industrial vehicle, and includes a vehicle-mounted coupling frame and an implement-mounted coupling frame. The position of the vehicle-mounted coupling frame is adjustable by an adjustment mechanism. A position sensor senses the position of the implement-mounted coupling frame. An analysis unit determines the position of the implement-mounted coupling frame relative to the vehicle-mounted coupling frame. A control unit calculates a coupling motion path of the vehicle-mounted coupling frame. In response to a starting signal, the control unit causes the adjusting mechanism to move the vehicle-mounted coupling frame along the coupling motion path.

Abstract: An implement/vehicle hitch system for coupling implements to a utility vehicle includes two hydraulic cylinders for adjusting the position of the implement. The hydraulic cylinders are connected to a pair of motor/pump units which cause the hydraulic cylinders to operate in a synchronous manner.

Abstract: A coupling for coupling, for example, a trailer having a drawbar (2) to a tractor with a three-point linkage device, which has two height-adjustable lower steering arms (3, 4) of which one is laterally adjustable by a lateral strut (11). A first coupling element is mounted on the rear of the tractor. The drawbar (2) is provided with a second coupling element (13). The second coupling element (13) is connectable to the first coupling element (12). The coupling has a bar 14 with two ends. Each end includes a connection element (15) to connect with the lower steering arms (3, 4) of the tractor (1). A guiding mechanism comprises two guiding pins is arranged, distanced from each other, on the bar (14). The guiding bar (14) supports the drawbar (2). The drawbar (2) is guided between the guiding pins (17). The drawbar (2) is adjustable relative to the bar (14) in the longitudinal direction.

Abstract: A hitch assembly includes a base member, an extension arm and an A-frame for supporting any of a plurality of implements. An elevating cylinder is connected to raise and lower the extension arm. Additionally, lateral cylinders are synchronized to move in unison to pivot the hitch assembly laterally side to side. The first respective ports of the lateral cylinders are directly connected together facilitate synchronous movement. A universal joint is connected between the arm and A-frame to coordinate up and down and left and right movement of the hitch assembly.

Abstract: A ballast attachment for a tractor three-point hitch includes a cubical, rotational molded polyethylene shell filled with steel reinforced concrete. The front side of the attachment includes a forwardly opening receptacle for receiving a transverse hitch bar carried by the lower links of a tractor three-point hitch, the rear portion of the receptacle including a semi-cylindrical seat for the hitch bar. The center of gravity of the attachment causes the lower part of the attachment to tend to pivot about the hitch bar toward the tractor to the point where it engages the lower three-point hitch draft links. A chain secures the attachment in place.

Abstract: An apparatus for transferring load between: (a) towing tractor which includes: (i) a three-point linkage which includes three linkage arms, and associated hydraulic draft control system; and (ii) a tow-bar; and (b) a towed above ground implement which includes a draw-bar which attaches to the tow-bar of the tractor; characterized in that the apparatus includes a shock absorber which is: (iii) connected at one end thereof to at least the two lower arms of the three-point linkage; and (iv) at the other end thereof connected to the draw-bar of the towed implement in a manner that allows the draft control system of the tractor to be activated so as to transfer load between the tractor and the implement, as is required to maintain the desired wheel slippage of the traction axle of the tractor while towing the implement.

Abstract: A control valve and feedback system has three operating states including a lifting state, a neutral state, and a lowering state. The feedback control system comprises a cylinder, a pump, a reservoir for holding working fluid, and a control valve. The control valve comprises a valve body having first and second ends with a bore defined therebetween. The valve body further comprises an inlet port, a return port, a first work port and a second work port. The inlet port, return port, and first and second work ports are defined in the valve body. The inlet port communicates with the bore and the pump. The return port is in fluid communication with the bore and the reservoir. The first work port is also in communication with the bore and the cylinder in the lifting state. The control valve is plumbed backwards so that the first work port and the second work port are in fluid communication in the lowering state. The valve also comprises a check valve disposed in the first work port.

Abstract: An attachment, primarily for a tractor having a three point hitch, has a post with a seat for a gooseneck hitch ball, and mounting brackets for a fifth wheel type hitch that permit a limited amount of pitch and roll.

Abstract: A device for attaching farm implements to a tractor incorporates a top link having a central body inserted inside a sleeve. Two handles are integral with the sleeve on opposing sides and having respective projecting ends. A hook is provided on the top link for attachment to a farm implement with the hook being fixed to the central body. A joint, fixed to the central body, connects the top crossbar. A lock device locks the projecting ends of the handles inside respective seats.

Abstract: An agricultural tractor having a rear suspension with draft compensating geometry to control the compression or extension of the rear suspension in response to a draft load. The draft compensating suspension enables the tractor hitch to be mounted on the suspended frame or chassis of the tractor rather than mounting the hitch to a non-suspended beam axle or locking out the suspension during draft work. The draft load is applied to the chassis by a ground engaging implement. The tractive load and torque at the rear wheels are reacted through the side view instantaneous center of the rear suspension. The placement of the instantaneous center will determine the suspension reaction to the wheel load and torque. Locating the suspension instantaneous center on a line of 100% draft-compensation will eliminate the motion of the suspension due to the draft load. If the instantaneous center is located below the 100% draft-compensation line, the suspension will compress under a draft load.

Abstract: A frame apparatus and system that provides the use of standard tractor-mounted agricultural and industrial work implements with a pickup truck or comparable flat-bed vehicle. Disclosed embodiments provide for the use of commercially available short-line front-end loaders and various effectors suitably adapted for use therewith. The system can be mounted and dismounted with implements attached, and connects to the host vehicle via a bed-mounted gooseneck hitch and frame- or bumper-mounted square hitch receiver.

Abstract: A three point tractor hitch permitting an implement to be attached or detached by an operator without leaving the tractor seat. The upper hitch arm includes a linear actuator with a hand grip and a hand operated switch controlling extension and contraction of the upper arm. A latching mechanism and a hand operated latch release are mounted on the upper arm facilitating attachment and release of the upper arm to an upper attaching pin of an implement hitch mast. One of the two lower arms of the hitch can be shifted laterally by a hydraulically actuated cylinder.

Abstract: A liquid manure application system, including a drag hose assembly and three point hitch adapted to retain the assembly in the course of operation while permitting the releasable three point attachment of tillage tools. The hitch itself provides dimensions and characteristics adapted for such use, including a structural attachment site for the drag hose assembly and a side load capacity considerably greater that comparative available hitches, and sufficient to withstand the side load forces encountered in the course of manure application.

Abstract: A hitch system attachable between a towing utility vehicle and a towed device, where the utility vehicle has a power source. The hitch system has a first frame adapted to pivotably couple the towing vehicle and the towed device, a lift frame attachable to the utility vehicle, where the lift frame has a first member and a second member and the second member is pivotably connected to the first member. The second member is operationably connected to the power source to pivot the second member in relation to the first member. The second member has a tow point, which is offset from the centerline of the second member, enabling the towed device to be towed in an offset configuration. Finally, a top link pivotably connects the second member and the utility vehicle, the top link connecting at the tow point.

Abstract: A redesigned three point tractor hitch system engageable and disengageable by an operator without leaving the tractor seat. This comprises eliminating the present used fish eye, ball joint ends of the two lower arms and the middle upper arm and replacing with extremities that can be positioned, attached and locked from the tractor seat. The two lower arm extremities have a fixed open jaw design that attaches to the implement studs from underneath and are locked in position by extending the shaft of a hydraulic cylinder over the studs and through the center of the jaw. The upper arm is attached by a fixed and moveable jaw design that closes and latches when pressure is applied against it from the pin that is mounted in the center mask of the implement. The upper jaw is carried by a hydraulic cylinder that aids in attaching, plus controls the fore and aft movement of the implement.

Abstract: A coupling system couples an implement to a utility vehicle, such as an agricultural or industrial vehicle, and includes a vehicle-mounted coupling frame and an implement-mounted coupling frame. The position of the vehicle-mounted coupling frame is adjustable by an adjustment mechanism. A position sensor senses the position of the implement-mounted coupling frame. An analysis unit determines the position of the implement-mounted coupling frame relative to the vehicle-mounted coupling frame. A control unit calculates a coupling motion path of the vehicle-mounted coupling frame. In response to a starting signal, the control unit causes the adjusting mechanism to move the vehicle-mounted coupling frame along the coupling motion path.

Abstract: A three-point hitch for a tractor on which an attachment can be mounted has its lower links pivotally connected to the tractor at the tractor side and actuated by hydraulic cylinders in mounts on a hitch bracket. The upper link can be a piston-and-cylinder arrangement pivotally connected to the hitch bracket.

Abstract: A hitch system attachable between a towing utility vehicle and a towed device, where the utility vehicle has a power source. The hitch system has a first frame adapted to pivotably couple the towing vehicle and the towed device, a lift frame attachable to the utility vehicle, where the lift frame has a first member and a second member and the second member is pivotably connected to the first member. The second member is operationably connected to the power source to pivot the second member in relation to the first member. The second member has a tow point, which is offset from the centerline of the second member, enabling the towed device to be towed in an offset configuration. Finally, a top link pivotably connects the second member and the utility vehicle, the top link connecting at the tow point.

Abstract: A front three-point hitch system for allowing a hood and grill of a tractor to be opened free of obstruction. The front three-point hitch system includes a pair of support plates attachable to a tractor frame, a pair of cuff members extending inwardly from the support plates about a pair of opposing apertures, a support structure pivotally attached between the pair of support plates by a pivot pin, a pair of extended tubular supports extending outwardly from the support structure about an aperture positionable within the cuff members, a main pin removably extendable through the apertures within the support plates and the support structure, a pair of support arms pivotally attached to the support structure, and a pair of hydraulic cylinders connected between the support structure and the support arms for effecting movement of the support arms with respect to the support structure.

Abstract: A liquid manure application system, including a drag hose assembly and three point hitch adapted to retain the assembly in the course of operation while permitting the releasable three point attachment of tillage tools. The hitch itself provides dimensions and characteristics adapted for such use, including a structural attachment site for the drag hose assembly and a side load capacity considerably greater that comparative available hitches, and sufficient to withstand the side load forces encountered in the course of manure application.

Abstract: A connector assembly for three-point hitch for conveniently receiving and securing the hitch of an implement to a three-point hitch. The connector assembly for three-point hitch includes a claw member having a receiver groove, and a locking lever pivotally attached to the claw member. The locking lever includes a handle, a front edge and a locking edge, wherein the locking edge engages and retains a connecting shaft within the receiver groove during operation. The front edge of the locking lever is engaged by the connecting shaft during insertion thereby moving the locking lever into an open position allowing free insertion of the connecting shaft into the receiver groove. An aperture within the claw member and the locking lever allows the insertion of a securing pin to ensure the locking lever retains the connecting shaft within the receiver groove during operation of the implement.

Abstract: Machine for working the soil in tree or shrub plantations, consisting of a chassis (1-2) equipped with mechanisms (4-5a, 11, 11) allowing it to be mounted on the universal three-point hitch system of a farm tractor and consisting, laterally, of mechanisms (28a, 28b) permitting the mounting of lateral tools (29A, 29B) allowing the working of the soil near the feet of the aligned trees or shrubs and mechanisms for driving these tools in rotation from the power take-off shaft of the tractor, characterized in that the chassis (1-2) is itself provided with a universal three-point hitch system (4-5b, 13, 13) allowing the mounting, on this chassis, of a second machine that customarily moves in between the rows, for the working or the treatment of the soil, or any other job related to the cultivating of the trees or shrubs.

Abstract: An implement interface for mounting on a chassis of a vehicle includes a telescopic boom pivotally coupled to the vehicle chassis so that the boom is pivotal about an essentially horizontal axis. The boom includes a housing which is pivotally coupled to the vehicle chassis and an arm which is slidably received by the housing. A carrier is mounted on a free end of the arm. A three-point hitch is mounted on the boom and has lower links coupled to the carrier, has an extendable upper linkage coupled to the boom, a lifting arm coupled to the carrier, a lifting brace connecting the lifting arm to one of the lower linkages, and a lift cylinder for vertically pivoting the lifting arm. A locking mechanism fixes the boom relative to the chassis. A hydraulic cylinder unit is coupled to the sliding arm and operable to move the sliding arm in a longitudinal direction. A pressure-operated piston/cylinder unit is coupled between the housing and the chassis and is operable to vertically pivot the boom.

Abstract: A hitch link structure includes two hitch tubes angled with respect to each other and having forward ends connected by upper and lower hitch plates welded to the tubes. The plates include weld cutouts designed so the same plates can be used with a variety of different hitch tube angles, depending on the width of the mainframe hitch mount-up. Three apertures in the forward end of each of the plates receive bolts which connect the selected hitch link to the plates. The apertures also act as weld fixturing locators to speed hitch construction. The weld cutouts, in generally a half moon configuration, facilitate low cost fillet welds at easily accessible locations regardless of hitch tube angle and facilitate fillet weld connections in relatively lowly stressed areas. The lower plate is apertured to define an intermediate support hole for the safety chain, and the central bolt connecting the hitch link also attaches to the safety chain so the chain is accommodated without additional parts.

Abstract: Method and apparatus for controlling the attitude of an agricultural implement drawn by an agricultural tractor, the device including a lift; two deflection sensors located at the attachment points of the bottom arms of the lift to the frame of the agricultural tractor; and an electronic central control unit for processing data received from the sensors and controlling lifting and lowering of the implement by the lift as a function of the data detected by the two sensors; the device being characterised in that each of the sensors has locking means for adjusting the position of each of the sensors with respect to the frame so that each of the sensors assumes a predetermined tilt with respect to the ground.

Abstract: A wedge shaped bumper for the draft link of a tractor three point hitch is adjustable along the length of the draft link and has a concave curved surface in the longitudinal plane of the draft link. The longitudinal curve allows the bumper to be shorter in length than a flat surfaced wedge bumper while providing the same change in thickness. The bumper mounts to the draft link in a longitudinal channel formed by upper and lower walls on the draft link having tapered engagement surfaces to transmit vertically loading from the bumper to the draft link without shear loading of the bumper mounting bolt.

Abstract: Apparatus for maintaining a tool bar in a controlled position behind a tractor having a conventional three-point hitch arrangement including an upper arm and a pair of lower lift arms. The apparatus has a tool bar positioned near the tractor extending in a direction generally perpendicular to a line of travel of the tractor and at least two upper mounts laterally spaced apart and fixedly connected to the tool bar for pivotal connection to the upper arm of the conventional three-point hitch. Each of the upper mounts has at least one apertured plate, and multiple spaced apart lower mounts laterally spaced apart and fixedly connected to the tool bar are associated with each upper mount for pivotal connection to the lower lift arms of the conventional three-point hitch.

Abstract: An all-purpose hitch assembly for connecting any one of a variety of implements to a working vehicle. The hitch assembly includes spaced apart arms which are moveable upwardly, downwardly and laterally. There is however, no middle or third link. Instead each arm has a pivotal coupling member, the coupling member having in turn two vertically spaced coupler elements. Each coupling member is attached to a mechanism extending from between the coupler elements to a point about midway of a respective arm. Each of the coupler elements receives coupler complementary elements attached to a coupling frame, which frame is connected to an implement. The coupler complementary elements are arranged on the coupling frame in a generally rectangular disposition. The hitch is safe, easy to use and does not require an additional working person to help make a connection between the working vehicle and the implement.

Abstract: A link for a hitch of a work vehicle includes an elongate arm having a first end adapted for being coupled to the work vehicle and a second end adapted for being coupled to an implement. At least one of the first and second ends includes a socket. The draft link further includes a ball removably retained within the socket. In an exemplary embodiment, the ball has a first surface with a first hardness and the socket has a second surface facing the first surface and having a second hardness less than the first hardness. The second surface is preferably formed from a metal including an ausferrite matrix and graphite spheroids.

Abstract: A multi-purpose turf machine (100) used primarily as a triplex turf mower includes a system for attaching an “operating unit” (e.g., a turf cutting unit) to a traction vehicle (102); and for moving the operating units, e.g., a pair of front cutting units (108a), between a working position and a transport position, the system utilizing a single actuator (224) to provide both vertical lifting as well as “wing-like” pivoting motion. The attachment system includes a female A-frame member (132) attached to the front cutting units (108a) and a mating male A-frame member (202) movably connected to the frame (101) of the vehicle (102). The machine (100) additionally includes a belt drive system to power the cutting units (108). The belt drive system provides correct belt tension between a driving pulley (230, 236) located on the vehicle (102) and a driven pulley (124) located on the end of each cutting unit (108) when the cutting units are in the working position.

Abstract: The object of this Patent comprises the action of flexible nylon cords (3), spirally attached in parallel axis (2), rotating one opposed to the other, producing pounding impacts on the standing uncut plants in the field.

Abstract: A motor vehicle trailer hitch adapter that mates with a motor vehicle trailer hitch receptacle and provides attachment of standard agricultural category one three point hitch implements such as scraper blades, landscaping rakes or box blades. The adapter comprises of a tube that interfaces with the motor vehicle hitch receptacle, a bracket that interfaces with the category one implement's two pivot post attachment points, and a winch that interfaces with the category one implement's upper attachment point for raising and lowering the implement. The electric winch contains a wire harness that is routed into the vehicle for power attachment and vehicle operator control of the winch. The motor vehicle battery powers the winch through an interface such as a cigarette lighter socket.

Abstract: A three-point hitch for a tractor on which an attachment can be mounted has its lower links pivotally connected to the tractor at the tractor side and actuated by hydraulic cylinders in mounts on a hitch bracket. The upper link can be a piston-and-cylinder arrangement pivotally connected to the hitch bracket.

Abstract: The invention relates to a device for stabilizing the two lower steering arms (1) of a tractor. The lower steering arms (1) can be actuated by a hydraulic power lift (9). Each lower steering arm (1) is associated with a side strut (6) which includes a single-acting hydraulic cylinder (7) to stabilize and secure the lower steering arm (1). A pre-selection valve (12) and a control valve (13) enable the hydraulic cylinders to be connected to the power lift (9) either via a line or loaded separately by a second pressure source (P2). Thus, independently of the actuation of the power lift (9), the two lower steering arms can be centrally centered by the hydraulic cylinders (7).

Abstract: An assembly with a lower steering arm has a strut 1 and an attaching end 16. To achieve a cost-effective design while at the same time reducing the play between the attaching end 16 and the end of the strut 1 received therein, the attaching end 16 includes a base member 18 and a cover 19. A blocking pawl 34 is supported in the base member 18. The cover 19 is welded to the base member 18 and comprises a stop face 30 for the end face 10 of the strut 1. Thus, any tolerances in the region of the base member 18 provided in the form of a forging do not affect the position of the stop face 30. The latter can be aligned when connecting the base member 18 and the cover 19. Because of its setting contour, the actuating lever 43 can be used for both the right hand and the left hand lower steering arm.