The exact harrow is used to cover the open seed furrows and to even out the soil; it works reliably, even if there are large amounts of straw. With its individually pivoting harrow elements, the Exact harrow follows the undulations of the soil perfectly, ensuring an even seed coverage on soils either with or without straw.
The harrow pressure is mechanically adjusted with plug pins from a central position. During hydraulic harrow pressure adjustment, a minimum and maximum value is predefined by inserting pins. Thus the harrow and coulter pressure can be simultaneously adjusted with a single control valve while driving to adjust to varying soils.
1. Exact harrow