EXCAVATION CONTROL DEVICE OF HYDRAULIC EXCAVATOR

摘要

PROBLEM TO BE SOLVED: To enable an action to the outside of an initially set limited area by a simple operation by enabling a temporary action outside the limited area by a simple operation. SOLUTION: This excavation control device of a hydraulic excavator having a plurality of operation levers 24a to c, is provided with sensors 28a to c for detecting a position of a specific part of a bucket 4c or an arm 4b or a boom 4a, a 'depth' button 221a for setting a depth directional limited area capable of moving the bucket 4c, a control unit 29 capable of an action of the bucket 4c only in the limited area and the vicinity according to a detecting result by the sensors 28a to c and the limited area setting by the 'depth' button 221a and a push-button switch 202 arranged separately from the 'depth' button 221a, and a limiting control action is temporarily released in a state of holding the previous area setting by the indication.