Grain cleaning system in a combine harvester

A grain cleaning system in a combine harvester comprising:

• a frame;
• a chaffer sieve operable to convey harvested crop material in a generally rearward direction to a first discharge edge;
• a lower sieve arranged below the chaffer sieve to catch material falling through the chaffer sieve and being operable to convey caught crop material in a generally rearward direction to a second discharge edge located forwardly and below the first discharge edge;
• a first chute disposed under the lower sieve to catch grain falling therefrom and being inclined to direct the caught grain to a clean grain trough;
• a second chute disposed under the first chute and configured to direct tailings to a tailings collection trough;
• and
• a multi-configurable plate mounted to the frame and positioned under a rear portion of the chaffer sieve, wherein the plate is moveable between a first operating position in which the plate is configured to guide material incident thereon to the second chute, and a second operating position in which the plate is configured to guide material incident thereon to the first chute, wherein the plate is pivotally mounted to the frame at a first pivot axis, and wherein the plate is pivotable between the first and second operating positions around the first pivot axis, wherein the plate is pivotable into a third position in which a front edge of the plate is raised beyond the second operating position so as to present an access opening to the lower sieve for inspection.