Abstract: A floating hitch for an agricultural implement has a hydraulic ram arranged for locking the implement in a raised position relative to the hitch, for transport. For transport, the ram extends into abutment with a point on the implement, and retracts out of the abutment for operation. A floating link guides the end of the ram, and the arc of movement of the floating link is such that the link lies normal to the ram axis at the point of abutment contact.

Abstract: The implement has a folding tool-bar, with a main section and wings. Hydraulic rams press the wings downwards relative to the main section during operation. Another ram presses the main-section downwards, reacting the force against a relatively weighty component, such as a air-cart. During non-operation, a carriage wheel is lowered, which raises the main section of the tool-bar off the ground. The wings also are raised clear of the ground. A sensor detects the position of the carriage wheel, and blocks movement of the wings downwards when the carriage wheel is lowered.