A lift device includes a chassis having a first end and an opposing second end, a first actuator coupled to the first end, a second actuator coupled to the first end, a third actuator coupled to the opposing second end; and a fourth actuator coupled to the opposing second end. The first actuator and the second actuator are selectively engageable to facilitate providing active control of a first pitch adjustment and a first roll adjustment of the first end of the chassis. The third actuator and the fourth actuator are (i) selectively fluidly couplable to facilitate providing passive control of a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis and (ii) selectively fluidly decouplable to facilitate providing active control of the second pitch adjustment and the second roll adjustment of the opposing second end of the chassis.

A lift device includes a chassis having a first end and an opposing second end, a first actuator coupled to the first end, a second actuator coupled to the first end, a third actuator coupled to the opposing second end; and a fourth actuator coupled to the opposing second end. The first actuator and the second actuator are selectively engageable to facilitate providing active control of a first pitch adjustment and a first roll adjustment of the first end of the chassis. The third actuator and the fourth actuator are (i) selectively fluidly couplable to facilitate providing passive control of a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis and (ii) selectively fluidly decouplable to facilitate providing active control of the second pitch adjustment and the second roll adjustment of the opposing second end of the chassis.

A transport tool capable of carrying out attaching an object to an attachment position while positioning the object in a predetermined positional relationship with the attachment position. The transport tool includes a base, a holding section movably supported by the base in a predetermined direction and configured to hold an object, and a positioning section that is provided to the base and configured to arrange the object held by the holding section in a preparation position having a predetermined positional relationship with the attachment position, the positioning section allowing the execution of an attachment operation of attaching the object, which has been arranged in the preparation position, to the attachment position by movement of the holding section relative to the base.

A transport tool capable of carrying out attaching an object to an attachment position while positioning the object in a predetermined positional relationship with the attachment position. The transport tool includes a base, a holding section movably supported by the base in a predetermined direction and configured to hold an object, and a positioning section that is provided to the base and configured to arrange the object held by the holding section in a preparation position having a predetermined positional relationship with the attachment position, the positioning section allowing the execution of an attachment operation of attaching the object, which has been arranged in the preparation position, to the attachment position by movement of the holding section relative to the base.

A Multi-Armed Lifting Accessory is disclosed herein which is compact and transportable in various deployments. The Multi-Armed Lifting Accessory is advantageous and useful as it has hingedly connected loading and support arms attached to a main lifter body. The supporting arms are spring loaded allowing the Multi-Armed Lifting Accessory to stably engage with irregular shaped objects such as barge lid or a skid steer loader and allows for flexible engagement and balanced lifting operations.

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 method for welding at least one hanger to a fork. A friction welding process may be used to create a weld between the hanger and the fork, after which the heat-affected zone (HAZ) may be allowed to cool. Preferably the cooling occurs until martensite is formed, after which a post-tempering current is applied to the HAZ.

A collision detection system (1) for detecting and assessing the state of a crash guard (2), comprising at least one crash guard (2), which is provided with a sensor for detecting a collision onto or against the said crash guard (2), wherein the said system comprises a processing unit, which is provided to assess, on the basis of the signals generated by the sensor, the effect of a collision on the crash guard (2) and, if necessary, to initiate an alarm signal.

A lift device includes a chassis having a first end and an opposing second end, a first actuator coupled to the first end of the chassis, a second actuator coupled to the first end of the chassis, a third actuator coupled to the opposing second end of the chassis, a fourth actuator coupled to the opposing second end of the chassis, and a control system. The control system is configured to fluidly couple at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator, and fluidly decouple and actively control the at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator.