Abstract: A swivel device is provided for support wheels on front attachments for agricultural machines, in particular for swath pick-up devices on forage harvesters and bale presses. An embodiment includes coupling plates (11) attached to the front free end of the supporting arm (10). Attached to the coupling plates (11) are coupling levers (13, 14), which are connected to swivel plates (15). The swivel plates (15) are connected by a swivel pin (16) to a wheel yoke (17) for receiving the support wheel (7). Between a fixed point on the supporting arm (10) and the coupling lever (14) is arranged a hydraulic cylinder (8).

Abstract: The invention relates to an agricultural harvesting machine having a switching device for cutter blades for comminuting crop material before the pressing or gathering operation. It is particularly applicable for round and square baling presses as well as self-loading forage boxes. The essential characteristics of the invention are support strips, which are associated with pivot strips and attached to bearing sleeves, and a blocking rod which is arranged outside the pivot range of the support strips, extends across the whole width of the conveying channel and can be pivoted by an adjusting device into the working range of the support strips.