CONTROLLER FOR HIGH-LIFT WORK VEHICLE

PROBLEM TO BE SOLVED: To attain safety for temporary support work for supporting temporarily an electric wire using a temporary support device. SOLUTION: A high-lift work vehicle has a boom arranged to be turned down and up or likely, a working block attached elevatably or likely between an upper moving position P(H) and a lower moving position P(L) in a tip of the boom, and the temporary support device O attached to the tip of the boom or the like to support the electric wire, and is set selectively with a usual mode for controlling a boom operation in response to a lever operation, and a temporary support mode allowing only an operation of the boom under fixed limitation with respect to the lever operation, under the condition where the electric wire is supported by the temporary support device. The high-lift work vehicle has an elevation position detector for detecting whether the working block is positioned in the lower moving position P(L) or not, and is set with the temporary support mode, only when detecting the presence of the working block positioned in the lower moving position P(L), by the elevation position detector. COPYRIGHT: (C)2008,JPO&INPIT