A telehandler having a tilt axle with an extendable track preferably includes a base frame, a front axle assembly and a rear axle assembly. The front axle assembly is pivotally retained on a lengthwise axis of the base frame at a front thereof and the rear axle assembly is pivotally retained on the lengthwise axis of the base frame at a rear thereof. Each axle assembly includes an axle beam, a left pivoting axle and a right pivoting axle. A front pivot cylinder is used to pivot the front axle assembly. A rear pivot cylinder is used to pivot the rear axle assembly. Left and right steering cylinders are used to pivot the left and right pivoting axles relative to the axle beam, respectively. Left and right extension cylinders are used to extend the left and right pivoting axles outward from the base frame and pivot with the axle beam.

A working vehicle has an upper rotating body and a lower traveling body. The lower traveling body is provided with: a center frame on which a swivel joint is vertically mounted; a right side frame on which a right traveling motor is mounted; a left side frame on which a left traveling motor is mounted; at least one right restriction member and at least one left restriction member, which restrict the maximum width of the vehicle; a right hose guide section having a right opening into which a right hydraulic hose is inserted, and provided to the right restriction member; and a left hose guide section having a left opening into which a left hydraulic hose is inserted, and provided to the left restriction member.

The invention relates to a chassis comprising a base (12) and four wheels (14) each being mounted on the base by way of a respective supporting device (16) and each being capable of being brought out of a transport position into an operating position of the chassis (10), and vice versa, wherein each supporting device comprises a support or carrier arm (18), which is arranged on the base via a proximal end (20) to be pivotable out of the transport position into the operating position of the chassis, and vice versa, and at a distal end (22) receives an axle journal (24) for rotation, a first control (30) for pivoting the support or carrier arm out of the transport position into the operating position of the chassis, and vice versa, the axle journal rotatably arranged at the distal end of the support or carrier arm, a stub axle (40), which is pivotably arranged on the axle journal and receives the wheel for rotation at a distal end (42) of the axle journal; and a second control (44) for pivoting the stub axle against the axle journal.

A track-width adjustment system, apparatus and method limit track-width adjustments in a self-propelled product applicator, according to a first speed-based protocol for track-width adjustments initiated by an operator of the applicator, and according to a second speed-based protocol for track-width adjustments initiated by an automatic track-width control arrangement of the applicator. An automatic track-width control arrangement continually monitors and adjusts track-width, as required to maintain a desired track-width at substantially any ground speed while the applicator is in motion. Operator initiated adjustments to track-width are allowed only within a prescribed range of ground speeds.

A work machine including a machine base mounted movably over an undercarriage, and a hydraulic arrangement which includes a first cylinder configured for operating a working blade of the work machine, a second cylinder configured to vary the width of the undercarriage, a source of fluid at high pressure which is fluidly connected to the first and second cylinders and which is housed in the machine base, and a selection valve which is fluidly interposed between the source and at least one of the first and second cylinders. The valve is housed in the undercarriage.

A combine harvester with a variable length wheelbase. For example, a combine harvester may have a chassis defining a forward end and a rear end, a feeder house at the forward end of the chassis, a first set of ground-engaging elements supporting the forward end of the chassis, and a second set of ground-engaging elements supporting the rear end of the chassis. The second set of ground-engaging elements are configured to move forward and rearward relative to the chassis.

An axle assembly for a vehicle. A movable housing is movably positioned within a closed channel defined by a central housing. The movable housing moves the axle assembly between a retracted configuration and an extended configuration. A mounting assembly may be coupled to and spaced from the movable housing and slidably positioned adjacent the central housing. A steering actuator is coupled to a steering arm and the mounting assembly such that the steering actuator moves as a unit. A track assist bracket may be fixedly coupled to the central housing and define a gap sized to slidably receive a mounting plate of the mounting assembly. A bushing may be disposed on each wall of a telescoping portion of the movable housing. A bellows may be provided to enclose exposed portions of the bushings in the extended configuration. Methods of adjusting the track of the axle assembly are also disclosed.

A drive line arrangement for self-propelled agricultural product applicator includes an engine connected to a remotely mounted pump arrangement by a driveshaft that passes through an axle of a frame of the applicator. The axle includes an axle tube extending transversely across the frame and defining front and rear facing surfaces of the axle tube, and a tubular-shaped tunnel fixedly attached to and extending through the axle from the front to the rear facing surfaces of the axle tube, and defining an internal opening of the tunnel for passage of the driveshaft through the tunnel. The tunnel extends beyond at least one of the front and rear facing surfaces of the axle tube to structurally reinforce the axle tube around the opening in the tunnel.

A telescoping axle arrangement is provided for an agricultural applicator having a frame supported above a ground surface by a ground engaging wheel operatively connected to the frame by the telescoping axle arrangement. A tubular first axle element, and a second axle element slidingly inserted into the first element operatively connect the wheel to the frame, and provide extension and retraction of the axle along a longitudinal axis of the axle. A cylindrical tunnel passing through the first element limits the extent to which the second axle element can be inserted into the first axle element. An inner end of the second axle element is contoured to extend at least partly under the cylindrical tunnel in the second axle element when the second axle element is inserted at a maximum allowed depth into the first axle element.

A wheel-mounting assembly for a utility vehicle includes a chassis and a wheel support assembly mounted to respective outboard ends of first and second telescopic axle assemblies. The first and second telescopic axle assemblies are laterally spaced from one another and are each secured to the chassis. The first and second telescopic axle assemblies each include a respective actuator arranged to control extension and retraction thereof for steering and track-width control.