A carriage assembly for a working machine, the assembly having a first coupling body pivotally mountable to a working arm to rotate about a first axis, a second coupling body pivotally mounted to the first coupling body to rotate about a second axis, and carriage for a working implement pivotally mounted to the second coupling body to rotate about a third axis.

A construction machine includes a boom and a control system. The control system is configured to receive at least a first motion command for repositioning the boom when the boom is deployed. In response to receiving the first motion command, the control system is also configured to reposition the boom in one of i) a substantially vertical path between a first position and a second position, or ii) a substantially horizontal path between the first position and the second position. As a result, the control system facilitates motion of the boom between the first position and the second position along a substantially linear, non-arcuate, path.

A platform control system for boom lifts preferably includes a control panel, a left joystick and a right joystick. The left joystick includes a plurality of left ON-OFF-ON rocker switches and a plurality of left ON-OFF push button switches. The right joystick includes a plurality of right ON-OFF-ON rocker switches and a plurality of right ON-OFF push button switches. The left and right joysticks can be configured to work on a telescopic boom lift machine as well as on an articulating boom lift machine. The control panel preferably includes a display screen and a screen shroud. The display screen is mounted in a middle of the control panel. The display screen includes a plurality of proceed lights, warning lights and error lights pertaining to the functions of the left and right joysticks. The screen shroud partially covers the display screen to eliminate sun glare.

A lift vehicle includes a chassis, an implement, a lift arm coupling the implement to the chassis, a load sensor, a tilt sensor, and a controller. The lift arm includes an actuator configured to selectively extend the lift arm and a length sensor configured to provide data relating to a length of the lift arm. The load sensor can provide data relating to a load at the implement. The tilt sensor can provide data relating to an angular orientation of the chassis relative to a reference plane. The controller can receive data from the length sensor, the load sensor, and the tilt sensor. The controller can determine, based on the data from the load sensor and the tilt sensor, an operating envelope for the lift arm. The operating envelope can include a maximum extension of the lift arm. The controller can selectively limit an operation of the lift arm such that the lift arm operates within the operating envelope.

A lift device includes a chassis, a primary platform defining a first support surface configured to support an operator, a lift assembly coupling the primary platform to the chassis and configured to raise the primary platform relative to the chassis, and a secondary platform defining a second support surface and removably coupled to the primary platform.

A mid-mount fire apparatus includes a chassis, a body assembly coupled to the chassis, a front cabin coupled to the chassis forward of the body assembly, a front axle coupled to the chassis, a rear axle coupled to the chassis, a ladder assembly having a proximal end that is coupled to the chassis rearward of the front cabin and between the front axle and the rear axle, and a pump positioned rearward of the front cabin and forward of an axis about which the ladder assembly rotates.

A lift device includes a base assembly, a turntable assembly, and a controller. The base assembly includes multiple base assembly batteries. The turntable assembly is rotatably coupled with the base assembly through a slip ring transmission. The turntable assembly includes multiple turntable assembly batteries. The controller is configured to operate the base assembly batteries to discharge electrical energy to the turntable batteries through the slip ring transmission. The slip ring transmission is configured to both (1) drive the turntable assembly to rotate relative to the base assembly and (2) to electrically and communicably couple electrical components of the base assembly with electrical components of the turntable assembly.

A suspension system for a land vehicle is provided with at least one actuator connected to a chassis and an axle of a land vehicle spaced apart from a pivotal connection of the axle. A suspension circuit is in cooperation with the at least one actuator. A controller is in operable communication with the suspension circuit and is programmed to receive input indicative of a travel speed of the land vehicle. The suspension circuit is closed at a low speed travel range to permit the axle to pivot in response to variations in an underlying support surface. The suspension circuit is opened to permit selective actuation of the at least one actuator at a higher speed travel range in response to variations in the underlying support surface.

A safety apparatus for an aerial work vehicle including a traveling body and a lifting apparatus supporting a work platform provided to the traveling body for lifting the work platform relative to the traveling body, the safety apparatus for the aerial work vehicle comprises a road surface inclination detecting device for detecting an inclination angle of an upcoming travel road surface ahead of the traveling body in a traveling direction; and an actuation restricting device for restricting actuation of the traveling body and/or the lifting apparatus according to the inclination angle of the upcoming travel road surface detected by the road surface inclination detecting device.

A lift device having an implement, a prime mover configured to drive the implement, and a connectivity module communicably coupled with the lift device. The connectivity module is configured to determine a parameter set relating to the lift device, receive a request to provide a status of the component of the lift device, receive a measure associated with the attribute of the component of the lift device, compare the received measure and the threshold measure associated with the attribute of the component of the lift device, and provide, based on the comparison, an indication in accordance with the indication characteristic representing the status of the component of the lift device.