US Patent 7467507 Modular baler

A large round baler includes a wheeled chassis constructed as a separate unit including a tow bar adapted for connection to a tractor. Also constructed as separate units that are releasably secured to the chassis are a baling assembly and a crop receiving and/or processing assembly. The baling assembly is constructed in such a way that, by separating the baling assembly from the chassis either in its entirety or by tilting it about a longitudinal axis defined at a connection at one side of the chassis, baling belts may be moved over the entire periphery of the baling assembly and mounted into engagement with baling element support rolls forming part of the baling assembly.