PROBLEM TO BE SOLVED: To provide a spray-working machine which controls an amount of spraying a chemical fluid with a sprayer.SOLUTION: When a pressure priority mode is set through an operation panel, a spraying pressure is set on the basis of a spraying amount per set unit Tan (Japanese unit of square measurement) to calculate an objective vehicle speed. After a spraying start is directed to arrive the objective vehicle speed, the spraying is started. When the change of the spraying amount is directed during automatic travel control (S24: YES), the objective vehicle speed is recalculated (S25), and the vehicle speed is controlled according to the changed objective vehicle speed (S27).COPYRIGHT: (C)2013,JPO&INPIT【課題】散布装置による薬液の散布量を制御する散布作業機の提供。【解決手段】操作パネルを通じて圧力優先モードが設定されている場合、設定された単位反当たりの散布量を基に散布圧力の設定を行い、目標車速を算出する。散布開始が指示され、目標車速に到達した後、散布を開始する。自動走行制御中に散布量の変更が指示された場合(S24:YES)、目標車速を再計算し(S25)、変更後の目標車速に従って車速の制御を行う(S27)。【選択図】図9
