Lifting device for mounting on trailer, has lifting arm driven by hydraulic cylinder pivotally connected to this arm and operated by pump

摘要

The lifting arm (9) is pivoted by a drive device comprising a hydraulic cylinder (16) with one end pivotally connected to the arm and a pump unit (20) for operating the cylinder. The other end of the cylinder is pivotally connected to an auxiliary arm (7) which can be pivoted about a vertical axis. The lifting arm is pivotally connected to the auxiliary arm.