An adjustable steering stop includes a chassis stop configured to be coupled to a chassis member of a vehicle and a knuckle stop configured to be coupled to a steering knuckle. The chassis stop and the knuckle stop together define a steering limit location where the knuckle stop contacts the chassis stop. The adjustable steering stop further includes an adjustment actuator coupled to one of the chassis stop or the knuckle stop to move the chassis stop or the knuckle stop thereby changing the steering limit location.

The present disclosure relates to a load-sense system such as a load-sense steering system that operates in a static load-sense mode for low flows and operates in a dynamic load-sense mode for high flows.

A power steering system steering gear includes a piston indirectly coupled to a steering linkage and moved by a steering wheel and fluid pressure on opposite ends of the piston. A fluid bore extends between the opposite ends of the piston. An end of travel relief system includes poppet valves at opposite ends of the bore. Each valve includes a sleeve having an inboard end within the bore and an outboard end extending outward therefrom and defines a valve seat between the ends. A valve stem within the sleeve has an inboard end defining a poppet configured for engagement with the valve seat and an outboard end defining a stem. A reset body can be inserted into the bore between the valves. Depending on the direction of movement of the piston, the body engages the inboard end of a corresponding valve to establish a reset position of the valve.

A self-setting valve assembly for a power steering gear assembly includes a plug, a first plunger, a second plunger, and a biasing member. The plug extends between a first end and a second end. The plug defines a cavity that is disposed between the first end and the second end, a first bore that extends from the first end to the cavity, and a second bore that extends from the second end to the cavity. The first plunger has a first head that is disposed within the cavity and a first stem that extends from the first head through the first bore. The second plunger has a second head that is disposed within the cavity and a second stem that extends from the first head through the second bore. The biasing member is disposed within the bore and extending between the first head and the second head.

A self-setting valve assembly includes a plug, a first plunger assembly, a second plunger assembly, and a biasing member. The plug has a first portion and a second portion. The first plunger assembly is movably disposed within the first portion. The second plunger assembly is movably disposed within the second portion. The biasing member is disposed between the first plunger assembly and the second plunger assembly. The biasing member is configured to bias each of the first plunger assembly and the second plunger assembly towards a closed position.

A control system for a work vehicle includes a first operation command unit that outputs a first operation command to operate a steering device of a work vehicle in a first steering direction, in a stopped state of the work vehicle, a state monitoring unit that monitors a state of the steering device, a restriction determination unit that determines whether to restrict operation of the steering device in the first steering direction, based on the state during output of the first operation command, and a restriction command unit that restricts the operation of the steering device in the first steering direction, based on the determination by the restriction determination unit.

A steering system for an articulated truck. The articulated truck is formed of a tractor and a trailer and an articulation joint. The steering system includes a hydraulic cylinder, with a cylinder barrel and a piston. The steering system provides for changes in angle between the tractor and the trailer. The hydraulic cylinder includes a snubbing tube projecting into the cylinder barrel. A hydraulic fluid passage opens into the cylinder barrel within the snubbing tube. The snubbing tube includes a main slot and a plurality of channels each extending between an interior and an exterior of the snubbing tube. The plurality of channels have a cross sectional area smaller than a cross sectional area of the main slot. When the articulated truck is steered, the piston moves in the cylinder barrel and the snubbing tube dampens the movement to prevent forces generated by the piston damaging the articulated truck.

A work machine, includes steering cylinders that drive a front frame with respect to a rear frame. A directional control valve changes a supply amount of hydraulic fluid to the steering cylinders. A steering wheel operates the directional control valve. A variable capacity pump discharges the hydraulic fluid to the directional control valve. Cylinder stroke sensors are provided for detecting the turning angle of the front frame with respect to the rear frame. A controller reduces the discharge flow rate of the variable capacity pump on the basis of the detection values of the cylinder stroke sensors.

A hydraulic rear axle steering for multi-axle vehicles, including a steering cylinder with a piston and two working chambers. The steering cylinder has a mechanical blocking device, which blocks the piston when it reaches a central position within the steering cylinder. The blocking device has a blocking member, which is retained in an engaged position by a locking element in the blocked state. The locking element is movable by a separate, hydraulically actuated actuator between a blocking position and a first unblocking position in which the locking element releases the blocking element. An admission-pressure-controlled load safety valve is provided for each working chamber, and control connections of the valves are connected to a pressure line leading to the respective other working chamber. The actuator is adjusted such that, when a lower, first pressure value is applied, the locking element moves into the unblocking position, and the valves are adjusted such that, when a higher, second pressure value is applied, the valves open towards the tank.