A professional who tends machine that blows chaff and foreign material from rice and regulates flow of rice to designated storage bins. Respnsibilities include:

• Starts machine and turns control valve to regulate flow of rice from storage bin to feeder box.
• Opens valve to release compressed air into machine to blow chaff and foreign material from rice as it passes over sieves.
• Pulls out slide on top of storage bin to allow rice to flow into bin.
• Scrapes sieves in machine with stick to remove dirt, straw, and other foreign material.
• Lubricates equipment and tightens belts, nuts, and bolts.