A harvester cleaning system may include louvers, a bar, louver wires connected to the louvers and an adjustment arm. The bar may include spaced rails and rungs between the rails, wherein the rungs form pockets along the bar. Each of the louver wires may have a main portion about which the louver wire pivots and a lever portion received within one of the pockets. The adjustment arm may include slots receiving the lever portion of each of the louver wires, wherein the adjustment arm is movable to pivot the louver wires to pivot the louvers.
