The three-section coulter rail is connected to the grooved tyre packer using a separate parallelogram. This ensures optimum contour tracking - even in the most difficult conditions.
In addition to the placement depth, the coulter rail cylinders also apply the coulter pressure. As standard this is set using a pressure relief valve. The valve is coupled to the hydraulic line that supplies the hopper fan, so uniform coulter pressure is achieved even in bumpy terrain. The pressure on the coulter rail is automatically relieved when the fan is switched off.