HYDRAULIC CONTROL CIRCUIT FOR WORKING MACHINE

摘要

The invention intends to realize that when a working implement comes close to a cab during works, the works can be continued while the working implement is avoided from interfering with the cab. To that end, a pilot pump oil line (P) capable of supplying pilot pressurized oil to a solenoid proportional pressure reducing valve (34) in a state where a control member is not manipulated, is provided in a stick contraction-side pilot oil line. When the working implement enters an interference prevention area, a stick is automatically moved out so that the works can be continued while avoiding the interference prevention area.