Removable concaves for axial flow combines

摘要

A combine harvester comprises a threshing and separating arrangement mounted to a main firm and including a generally cylindrical chamber having a generally longitudinal axis. Part of the chamber is constituted by a separating concave assembly comprising at least two separating concaves, the one located behind the other. The concaves are taken from a choice of less and more aggressive separating concaves. The chamber comprises mounting device operable to receive and hold each of the separating concaves. The front and/or the rear concaves can be removed and replaced.