A leaf screen cleaner system to remove crop material such as leaves and stalks from one or more leaf screens of a combine harvester, the system including a slotted carriage movable in opposing directions, a screen having plural members, each of the plural members disposed in a respective slot of the carriage. A pulley assembly is coupled to the carriage and a feeder house is coupled to the pulley assembly. Based on pivotal motion of the feeder house, the carriage moves relative to the screen along the plural members.