A baler for baling a fibrous material includes a cleaning system for removing debris from the baler in a plurality of locations, the cleaning system including an air blower and a conduit system including an inlet and a plurality of outlets for delivering air from the blower to the plurality of locations. An air flow control mechanism is provided for controlling delivery of air from the inlet to the plurality of outlets, the air flow control mechanism being configured to deliver the air alternately to one or more of the outlets.
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