An attachment system for a work vehicle implement includes an implement attachment assembly. The implement attachment assembly includes a support structure coupled to a receiver assembly. The support structure includes a first mounting feature configured to engage a first corresponding mounting feature extending downwardly from a bottom surface of a work vehicle, and a second mounting feature configured to engage a second corresponding mounting feature extending downwardly from the bottom surface of the work vehicle. The first and second mounting features of the support structure are spaced apart from one another along a longitudinal axis relative to a direction of travel of the work vehicle, and the first and second mounting features of the support structure are configured to substantially block horizontal and vertical movement of the support structure relative to the work vehicle via engagement with the first and second corresponding mounting features of the work vehicle.

A bulldozer includes a steering clutch, a steering brake, a hydraulic pump that discharges a lubricating oil, a first lubricating oil supply path, a second lubricating oil supply path, a third lubricating oil supply path, and a flow amount switching valve disposed on the second lubricating oil supply path. The first lubricating oil supply path supplies a portion of the lubricating oil discharged by the hydraulic pump to the steering clutch The second lubricating oil supply path supplies a portion of the lubricating oil discharged by the hydraulic pump to the steering brake. The third lubricating oil supply path supplies, to the steering brake, a portion of the lubricating oil that has passed through the steering clutch. The flow amount switching valve switches an amount of the lubricating oil supplied to the steering brake.

An accessory mounting system for a work vehicle includes a first mount extending from a lateral side of a body of the work vehicle, in which the first mount is configured to couple to a first end of a rotatable component to rotatably couple the rotatable component to the body of the work vehicle. Further, the accessory mounting system for includes a cover assembly having a cover, in which the cover assembly is coupled to the lateral side of the body of the work vehicle, and at least a portion of the cover is positioned laterally outward from the first mount such that the first end of the rotatable component is disposed between the lateral side of the body of the work vehicle and the portion of the cover while the first end of the rotatable component is coupled to the first mount.

An attachment pin assembly includes a pin body to be inserted into first through-holes of a drilling tool and a second through-hole of an adaptor, the first and second through-holes being arranged eccentrically with respect to each other; a bush portion provided on one end side of the pin body; a detachment prevention member of the bush portion screwed to one end of the pin body; and a stopper portion provided on the other end side of the pin body and configured such that a side surface portion arranged on the outside of the pin body in a radial direction thereof in the first through-hole is locked on an inner wall surface of the tooth forming the first through-hole to stop rotation of the pin body.

An attachment pin assembly includes a pin body to be inserted into first through-holes of a drilling tool and a second through-hole of an adaptor, the first and second through-holes being arranged eccentrically with respect to each other; a bush portion provided on one end side of the pin body; a detachment prevention member of the bush portion screwed to one end of the pin body; and a stopper portion provided on the other end side of the pin body and configured such that a side surface portion arranged on the outside of the pin body in a radial direction thereof in the first through-hole is locked on an inner wall surface of the tooth forming the first through-hole to stop rotation of the pin body.

A stand is disclosed for supporting a moldboard and a drawbar of a grading machine. The stand may comprise a base frame and a component support unit. The said stand may be configured to support the moldboard, and the component support unit may be configured to support at least a portion of the drawbar. The base frame and the component support unit may be configured to: (a) support a substantial portion of the moldboard above the base frame; and (b) support a substantial portion of the drawbar above the base frame and the moldboard when the moldboard is supported on the stand.

A tractor includes an air cleaner and a passageway arranged to surround the air cleaner. Alternatively, tractor includes a maintenance equipment, an engine, a top plate covering the engine, and a floor section disposed at a position lower than the top plate and in a non-overlapping position with the engine as seen from above. In this tractor, the maintenance equipment is disposed on the floor section.

A land plane with a ripper, including a plane portion including at least two cutter bars and a ripper mechanism having a ripper bar assembly having ripper teeth that are shiftable between a downwardly extended orientation in which the ripper teeth are biased to extend downwardly beyond the at least two cutter bars thereby facilitating ground engaging contact of the ripper teeth and a retracted orientation in which the ripper teeth are above the at least two cutter bars. The ripper mechanism further includes a latching mechanism and a reset bar extending outwardly away from the plane portion and coupled to the latching mechanism. The reset bar is shiftable between a first position wherein the ripper teeth are secured in the retracted orientation by the latching mechanism and a second position wherein the ripper teeth are biased toward the extended position by the latching mechanism.

A convertible box blade scraper apparatus includes a frame assembly including a first sidewall, a second sidewall, one or more shank support cross-members, a first blade support cross-member having a first scraper blade secured thereto, a second blade support cross-member extending between and secured to the first sidewall and the second sidewall, and having a second scraper blade and a leveling blade secured thereto, and a moldboard support cross-member, the moldboard support cross-member having a moldboard support longitudinal center axis. The apparatus further includes an elongated moldboard having an arc-shaped front surface that extends between a moldboard top edge and a moldboard bottom edge, the moldboard including one or more pivot arms rotatably coupled to the moldboard support cross-member to provide the moldboard with a pivot axis, wherein the pivot axis is coincident with the moldboard support longitudinal center axis, and further including a hitch assembly.

A convertible box blade scraper apparatus includes a frame assembly including a first sidewall, a second sidewall, one or more shank support cross-members, a first blade support cross-member having a first scraper blade secured thereto, a second blade support cross-member extending between and secured to the first sidewall and the second sidewall, and having a second scraper blade and a leveling blade secured thereto, and a moldboard support cross-member, the moldboard support cross-member having a moldboard support longitudinal center axis. The apparatus further includes an elongated moldboard having an arc-shaped front surface that extends between a moldboard top edge and a moldboard bottom edge, the moldboard including one or more pivot arms rotatably coupled to the moldboard support cross-member to provide the moldboard with a pivot axis, wherein the pivot axis is coincident with the moldboard support longitudinal center axis, and further including a hitch assembly.