A lift device includes a base, an arm, a tractive element, and a steering actuator. The arm has a base end coupled to the base and a tractive element end. The arm includes a steering actuator interface positioned along an exterior surface of the arm. The tractive element is coupled to the tractive element end. The steering actuator has a first end coupled to the steering actuator interface and an opposing second end coupled to the tractive element. The arm includes a plate extending from the exterior surface of the arm at an upward angle and past the steering actuator.

A work vehicle for maintenance of an electrical catenary includes a vehicle frame supported on on-track undercarriages and a vehicle superstructure situated on the vehicle frame. A first grounding device is disposed at a first vehicle end relative to a longitudinal direction of the vehicle. A crane having a vertically and transversely adjustable work platform is disposed at an opposite, second vehicle end. A second grounding device is provided at the second vehicle end.

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 system for protecting an operator on an aerial work platform from a crushing hazard includes a sensor, such as opto-electric sensor, positionable adjacent the control panel area. A control system is programmed to control operation of the driving components based on signals from the sensor.

A lift device includes a chassis, a platform configured to support a user, a lift assembly coupling the platform to the chassis, an actuator configured to at least one of (a) move the platform relative to the chassis or (b) propel the chassis, a sensor assembly, and a controller. The sensor assembly includes a rod including a first end portion coupled to the platform and a second end portion opposite the first end portion, a housing defining an aperture sized to receive the second end portion of the rod, and a sensor coupled to the housing and configured to provide a signal in response to the second end portion of the rod exiting the aperture. The controller is operatively coupled to the sensor and the actuator and configured to control the actuator in response to receiving the signal from the sensor.

An integrally formed aerial support platform is described herein. The aerial support platform is formed from a thermoplastic composite including continuous reinforcement fibers, allowing the aerial support platform to be formed in one piece via compression molding, thereby decreasing the time and effort needed to produce each aerial support platform. An aerial support platform having increased longevity and increased stiffness-to-weight ratio is therefore produced. Furthermore, described is a process for producing an aerial support platform that substantially reduces the amount of volatile organic compound emissions and demonstrates improved recyclability when compared to traditional thermoset composite platforms.

A selector control that is manually operable by a user for activating or deactivating a primary control or a secondary control. The selector control may include a first state for activating the primary control and deactivating the secondary control, a second state for activating the secondary control and deactivating the primary control, and a failsafe state for deactivating both the primary control and the secondary control. The selector control may be configured to maintain the second state independent of continuous user input being applied to the selector control, and configured to maintain the first state when continuous user input is applied to the selector control. The selector control is normally biased toward the failsafe state such that the selector control automatically selects the failsafe state when the user discontinues applying the user input for maintaining the first state. The selector control has particular application for use in controlling a boom of a work vehicle.

Basket (1) comprising: a platform (7), a drive system (2) for moving the platform (7), a control desk (3) equipped with controls (4) of the system (2), a flexible safety link (5), two retaining systems (6) for keeping the link (5) in a position in which the link (5) extends across the platform (7), a detection device for detecting deformation of the link (5), having a detection member configured so that, under the effect of deformation of the link (5), it passes from a state referred to as inactive, in which operation of the controls (4) of the drive system (2) for moving the platform (7) is not disabled to a state referred to as active, in which said operation is disabled, one of the retaining systems (6) comprising a rotary member for winding the link (5) equipped with a return member for returning said rotary member in the direction of winding of the link (5) around said rotary member.

A fully electric lift device includes a base assembly, a lift assembly, a platform assembly, tractive elements, an energy storage device, and a control system. The lift assembly is coupled with the base assembly and is driven by an electric linear actuator for a lifting function. The platform assembly is positioned at a top of the lift assembly and can be raised or lowered as the lift assembly performs the lifting function. The tractive elements are rotatably coupled with the base assembly and can be driven by an electric wheel motor to perform a driving function. The control system includes a controller that operates the electric wheel motor and the electric linear actuator to perform the driving function and the lifting function using power drawn from the energy storage device. The lift assembly and the tractive elements use only electrical energy to perform the lifting and driving functions.

A machine includes a base, a lift assembly, a first wireless transceiver, a plurality of second wireless transceivers, and a processing circuit. The lift assembly is coupled to and repositionable relative to the base. The first wireless transceiver is coupled to a portion or component of the lift assembly. The first wireless transceiver is configured to transmit a first wireless signal. The plurality of second wireless transceivers are coupled to the base. The plurality of second wireless transceivers are configured to detect the first wireless signal and transmit a plurality of second wireless signals in response to detecting the first wireless signal. The first wireless transceiver is configured to detect the plurality of second wireless signals. The processing circuit is communicably coupled to the first wireless transceiver. The processing circuit is configured to determine a position of the portion or component based on information acquired from the first wireless transceiver.