Tractor-drawn plough with hydraulic actuators for setting machine parameters has central valve block as hydraulic control means mounted on plough and connectable to pressure source on tractor side

摘要

The plough includes hydraulic actuators (4,5,6) actuated by a hydraulic circuit which includes hydraulic control means formed as a central valve block (8) which is mounted on the plough or other agricultural machine and can be connected to a pressure source on the tractor side. The valve block is controllable by an electronics control device. The actuators are associated with path measuring devices (11) for determining the actual position whereby the valve block is controlled by the control device in dependence on the relevant actual position determined each time.