The machine (1) i.e. field chopper (2), has a receiving device (6) for receiving agricultural attachments (3) e.g. maize header (4), where a height of the receiving device is adjusted using a lift cylinder (26). A support wheel (16) stays in contact with a field ground (5) and supports the attachments. A support pressure regulating device (25) regulates support pressure of the support wheel on the ground when the agricultural attachments take a non-working position. The regulating device constantly regulates a pressure level of the cylinder in a transport position of the attachments.
