The seeder has a frame and a hydraulic driven blower. A hydraulic cylinder (6) is arranged between the frame and side sections of the seeder, where the blower is driveable by a motor. A hydraulic pressure line (11) that is connected to the blower is connected by a branch line (15) with a set of pipe lines (8) that are guided to the cylinder, where the cylinder is pressurized over the pipe lines for pressing side sections to a base.
