FIELD: agriculture.
SUBSTANCE: group of inventions relates to agricultural tools, in particular to a hydraulic control system having one hydraulic remote control. The hydraulic control device comprises openings for supply and return of the fluid of the towing vehicle, a first hydraulic system that controls the lifting/lowering of the tool and providing a clamping force on it, a second hydraulic system that controls folding and unfolding of the folding frame sections. The second hydraulic system communicates with the openings for supply and return of the fluid and comprises a second group of hydraulic valves with electronic control. The hydraulic system is characterized by the use of the hydraulic device. The agricultural tool comprises a tool bar having a fixed frame section, the first and second side sections pivotally connected to opposite sides of the fixed frame section, a plurality of tools for interaction with the ground, mounted on the tool bar, and a hydraulic control system with electronic control for controlling the movements of the tool bar.
EFFECT: hydraulic system with the simplicity of constructive implementation provides folding and unfolding of the side sections of the foldable agricultural implement, and lowering the tools for interaction with the soil.
20 cl, 12 dwg
