A professional who tends machines that screen foreign material from ground, devulcanized scrap rubber. Respnsibilities include:

• Opens chute on feed conveyors or shovels scrap rubber into hopper of strainer.
• Starts machine that forces scrap rubber through strainer screen.
• Regulates speed of machine and conveyors to prevent jamming of stock.
• Discharges strained scrap rubber onto conveyors for transfer to refining mills, or onto handtrucks for transfer to storage.
• Feels strainer, and opens water valves to prevent overheating of machine and scorching of rubber.
• Observes rubber for color and appearance and feels strained rubber to ensure that foreign material is removed.
• Cleans clogged strainer screens, using scraper and solvent, or replaces clogged and worn strainer screens, using handtools.
• Signals drying and milling department workers to maintain specified flow of scrap rubber through strainers.
• May dump bags of soapstone in discharge chute to facilitate movement of stock through screen conveyor.
• May tend magnetic device to facilitate removal of metal from rubber.
• May fill containers with screened rubber to specified weight and keep record of production.