Patent ID: 7017289

Claim:
An earth-moving vehicle comprising: a mobile operating arm; at least one actuator for moving the operating arm through a plurality of positions, wherein one of the plurality of positions is a pre-defined reference position; a control for actuating the actuator; and a configuration device comprising a sensor designed for detecting at least the pre-defined reference position of the operating arm and for issuing a corresponding position signal, a disabling valve activated automatically according to the position signal to disable actuation of the actuator when the operating arm reaches the predetermined reference position, a re-enabling switch which can be switched manually by an operator for deactivating the disabling valve to enable the actuator to be actuated, and an activation switch which can be switched manually by the operator to render operative the configuration device wherein the disabling valve comprises a bistable device, switchable between an enabling position, in which it enables the control to control actuation of the actuator, and a disabling position, in which it inhibits the control from controlling actuation of he actuator.