A leveling system for a lift device includes a control system. The control system has programmed instructions to acquire operation data regarding operation of the lift device, fluidly couple a first leveling actuator and a second leveling actuator based on the operation data, acquire an update regarding the operation data, fluidly decouple the first leveling actuator and the second leveling actuator based on the update regarding the operation data, and selectively control the first leveling actuator and the second leveling actuator to (i) selectively reposition a first tractive element and a second tractive element relative to each other about a longitudinal axis defined by the lift device and (ii) selectively reposition the first tractive element and the second tractive element about a first lateral axis defined by the lift device.

A leveling system for a lift device includes a control system. The control system has programmed instructions to acquire operation data regarding operation of the lift device, fluidly couple a first leveling actuator and a second leveling actuator based on the operation data, acquire an update regarding the operation data, fluidly decouple the first leveling actuator and the second leveling actuator based on the update regarding the operation data, and selectively control the first leveling actuator and the second leveling actuator to (i) selectively reposition a first tractive element and a second tractive element relative to each other about a longitudinal axis defined by the lift device and (ii) selectively reposition the first tractive element and the second tractive element about a first lateral axis defined by the lift device.

A vehicle transporting device includes a bogie frame, a total of eight arms, upper surface plates, and arm driving units. Two arms in a longitudinal direction of the bogie frame of the total of eight arms are paired with each other to support tires. The upper surface plates extend in a width direction of the bogie frame to support the arms. At least six arm driving units are provided on the bogie frame to individually drive at least six arms. Base end portions of pivoting arms are pivotably supported by the upper surface plates in outer peripheral regions of the upper surface plates. Tip portions of the pivoting arms are located outside the upper surface plates. One ends of the arm driving units are attached partway through the pivoting arms. The other ends of the arm driving units are located outside the bogie frame.

A system is used for lifting a heavy oversized structural element. At least two opposing lifts are placement adjacent opposing sides of the element. Each lift includes a base, a tower, an elevator, and an actuator. The tower extending vertically from the base, and the elevator is disposed on the tower. A support extends from the elevator outward from the tower to engage a point on the element. A guide of the elevator is configured to ride along a rail of the tower. The actuator is connected to the elevator and is configured to move with the elevator vertically along the tower. The actuator can include a strand jack disposed on the elevator. Hydraulic operation of the stand jack moves the jack and elevator along a strand extending along the tower. The arrangements of the lifts leave space below the raised element free for access to other operations.

A system is used for lifting a heavy oversized structural element. At least two opposing lifts are placement adjacent opposing sides of the element. Each lift includes a base, a tower, an elevator, and an actuator. The tower extending vertically from the base, and the elevator is disposed on the tower. A support extends from the elevator outward from the tower to engage a point on the element. A guide of the elevator is configured to ride along a rail of the tower. The actuator is connected to the elevator and is configured to move with the elevator vertically along the tower. The actuator can include a strand jack disposed on the elevator. Hydraulic operation of the stand jack moves the jack and elevator along a strand extending along the tower. The arrangements of the lifts leave space below the raised element free for access to other operations.

A vehicle jacking assembly for lifting a vehicle for performing maintenance thereon includes a housing, which defines an interior space and which is can be positioned on a surface below a frame of a vehicle. A pneumatic bag is engaged to the housing and is selectively extensible therefrom through an aperture positioned in a top of the housing. A compressor and a battery are engaged to the housing and positioned in the interior space. The compressor is operationally engaged to the pneumatic bag. The battery is operationally engaged to the compressor. The battery is positioned to selectively power the compressor to inflate the pneumatic bag so that the pneumatic bag extends from the housing and contacts the frame of the vehicle to lift a corner or side of the vehicle.

A vehicle jacking assembly for lifting a vehicle for performing maintenance thereon includes a housing, which defines an interior space and which is can be positioned on a surface below a frame of a vehicle. A pneumatic bag is engaged to the housing and is selectively extensible therefrom through an aperture positioned in a top of the housing. A compressor and a battery are engaged to the housing and positioned in the interior space. The compressor is operationally engaged to the pneumatic bag. The battery is operationally engaged to the compressor. The battery is positioned to selectively power the compressor to inflate the pneumatic bag so that the pneumatic bag extends from the housing and contacts the frame of the vehicle to lift a corner or side of the vehicle.

A jack, comprising: a top plate adapted to contact a load; a base plate positioned below the top plate; at least one actuator coupled perpendicularly between the base plate and the top plate; wherein the at least one actuator is operable to move the top plate between a lowered position and a raised position to thereby lower and raise the load; and, at least one locking assembly adapted to lock the top plate in the raised position.

A jack, comprising: a top plate adapted to contact a load; a base plate positioned below the top plate; at least one actuator coupled perpendicularly between the base plate and the top plate; wherein the at least one actuator is operable to move the top plate between a lowered position and a raised position to thereby lower and raise the load; and, at least one locking assembly adapted to lock the top plate in the raised position.

A jack support apparatus has an outer tube having an outer tube body with an outwardly-extending outer tube jack cradle and an opposite outer tube opening, an inner tube having an inner tube body with a plurality of spaced-apart inner tube holes and an outwardly-extending inner tube jack cradle, the inner tube body slidably received within the outer tube body through the outer tube opening, the outer and inner tube jack cradles configured to each selectively engage one of the wheel axle and the cup axle of the jack, a tube spring operable between the outer tube body and the inner tube body to bias the outer tube and the inner tube apart, and a pin operable through an outer tube hole for selectively engaging any of the plurality of inner tube holes, the pin being biased inwardly toward the inner tube by a pin spring.