BIASING SYSTEM AND RUN SELECTOR DEVICE WITH SUCH

A biasing system (600, 700, 800, 900, 1000) for use with an associated run selector device is disclosed. The biasing system (600, 700, 800, 900, 1000) having a valve member movable within a housing between opposite first and second run selection positions selecting respective first and second commodity distribution runs of the associated run selector device, the biasing system (600, 700) comprising: a first biasing element on the housing of the associated run selector device; and a second biasing element on the valve member of the associated run selector device, wherein the first and second biasing elements are movable relative to each other between opposite first and second biasing system positions together with the associated valve member being moved relative to the housing between the opposite first and second run selection positions, wherein the first and second biasing elements are mutually biased against each other to urge each other apart and towards a one or the other of the opposite first and second biasing system positions. Furthermore, a run selection device with such a biasing system is disclosed.