There is disclosed a method of operating a tipper comprising a tipper body pivotably moveable with respect to a frame with a hydraulic cylinder disposed therebetween and actuatable to pivot the tipper body. The method comprises receiving at least one lateral state parameter relating to at least one lateral state of the hydraulic cylinder; determining whether the lateral condition of the hydraulic cylinder is outside acceptable limits based on the at least one lateral state parameter; and generating an output if it is determined that the lateral condition of the hydraulic cylinder is outside acceptable limits.

The present invention relates to a system for transporting and discharging material from vehicles and trailers having a material hopper body. The material hopper body has generally inclined sidewalls and a substantially horizontal bottom area defined by an internal conveyor extending the length of the hopper body. A tailgate door closes the end of the hopper body to contain the load in the hopper. The tailgate door is moveable from the closed position to an open position to permit discharge of the material out the rear of the hopper. Lift and stabilizing means proximate the rear of the material hopper body elevate the hopper body. An external throw conveyor is adapted to pivot between a stored position at the side of the hopper body to an operational position behind and below the hopper body at the discharge end to directionally discharge material from the hopper body.

A hoist valve assembly for a work machine cylinder includes a main control valve, a counterbalance valve and a counterbalance shutoff valve. A main control valve raise position connects a head end of the cylinder with a pressurized fluid source and a rod end of the cylinder to a low pressure reservoir to extend the cylinder. The counterbalance valve is between the rod end and the main control valve, is biased to a closed position and has an open position connecting the rod end to the low pressure reservoir. Rod end and head end pressure signals apply force to the counterbalance valve toward the open position. The counterbalance shutoff valve is positioned between the head end and the counterbalance valve, and has a normal position to apply the head end pressure signal to the counterbalance valve and a shutoff position that blocks the head end pressure signal from the counterbalance valve.

A system includes a trailer frame, a lifting mechanism coupled to the trailer frame, wherein the lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe, a braking mechanism configured to apply pressure to the pipe while the pipe is being deployed by the system, and a hydraulic power unit configured to hydraulically power the system.

An elongated trailer has a front neck for connection to the fifth wheel apparatus associated with a suitable tractor. The bed has a lowered, intermediate load portion disposed approximately in the trailer middle. A hydraulic ram raises or lowers the tiltable trailer which is suitably journalled for rotation at its mounting point. A pivoted cover atop the cargo bed can be shifted between open cargo-loading positions and closed cargo-hauling positions by hydraulic cylinders when unlocked. Slidable, hydraulically actuated locking tracks on each side of the top parallel with the cover support latches that can be shifted into or out of engagement with rigid tangs projecting from sides of the cover to forcibly clamp the cover shut. Hydraulic controls accessible from the ground control the apparatus.

There is disclosed a method of operating a tipper vehicle, the tipper vehicle comprising a tipper body pivotably moveable with respect to a frame with a hydraulic cylinder disposed therebetween and actuatable to pivot the tipper body. The method comprises monitoring at least one of (i) a pressure parameter relating to the hydraulic pressure within the hydraulic cylinder and (ii) an angular positional parameter relating to the angular position of the tipper body; determining a maximum permissible vehicle speed based on at least one of the monitored (i) pressure parameter and (ii) angular positional parameter; and displaying the maximum permissible vehicle speed.

A method for tipping a load by a working machine is provided. The working machine includes a load carrier and at least one lift cylinder adapted to raise the load carrier for tipping the load. The method includes obtaining a measure of the inclination angle of the working machine, where the inclination of the working machine is such that the rear end of the working machine is higher than the front end thereof, allowing a first maximal tipping pressure to the lift cylinder for raising the load carrier when the inclination angle is smaller than a predefined inclination angle, and allowing a second maximal tipping pressure to the lift cylinder for raising the load carrier when the inclination angle is greater than the predefined inclination angle, and where the second maximal tipping pressure exceeds the first maximal tipping pressure. A tipping device, a working machine comprising such a tipping device, a computer program and a computer program product are also provided.

A system for and method of operating a tipper comprising a tipper body pivotably movable with respect to a frame with a hydraulic cylinder disposed therebetween and actuatable to pivot the tipper body. A loading parameter relating to the load through the hydraulic cylinder is monitored during tipping. Based on at least the loading parameter, it is determined whether the hydraulic cylinder is at risk of buckling and, if it is determined that the hydraulic cylinder is at risk of buckling, an output is generated in response.

There is disclosed a method of determining the mass of a load in a tipper body of a tipper, the tipper comprising a tipper body pivotably moveable with respect to a frame with a hydraulic cylinder disposed therebetween and actuatable to pivot the tipper body. The method comprises receiving at least one pressure parameter relating to the hydraulic pressure within the hydraulic cylinder at an angular position of the tipper body and at least one angular positional parameter relating to the angular position of the tipper body at the said angular position; and determining a mass parameter relating to the mass of a load in the tipper body based on at least the at least one pressure parameter and the at least one angular positional parameter

A suspension system for a vehicle includes an extendable and retractable actuator disposed at each side of a frame of the vehicle and pivotally attached at one end to a vehicle bracket and at the other end to a suspension bracket. The suspension bracket includes an actuator portion, an axle portion and a suspension arm, with the actuator portion and the suspension arm pivotable relative to an axis of the axle portion. When the actuator is extended or retracted, the actuator portion pivots about the axis of the axle portion and imparts pivotal movement of a suspension arm about the axis to adjust a height of the frame of the vehicle. The actuator includes an elastomeric element disposed between an outer end of a slide rod and an outer end of a ram rod, with the slide rod movable to absorb sudden movements of the frame or wheel.