OPERATION SPEED CONTROLLER OF CONSTRUCTION MACHINE.

摘要

When a scoop-up operation which repeats alternately the lift of the boom (2) and the tilt of the scoop (4) by the switching operation between the tilt and neutral of only a scoop operation lever (16) by keeping a boom operation lever (15) at a boom kick-out position, the lift speed of the boom (2) is controlled in accordance with the tilt speed of the scoop or with the boom angle so as to match the tilt speed to the boom speed.