A professional who tends conveying and grinding equipment that reclaims aluminum-hydrate scale. Respnsibilities include:

• Moves controls to regulate conveyor flow of hydrate scale to hammer mill and rodmill.
• Turns valves to add plant liquor to rodmill to maintain specified slurry density.
• Clears hoppers, pan feeders, and conveying equipment of accumulated materials, using bar, hammer, or shovel.
• Cleans conveyors, idlers, and pulleys, using scrapers and cleaning tools.
• Turns valves and starts pumps to switch product flow through auxiliary units.
• Catches product samples.
• Keeps operating log.
• Lubricates valves and adjusts packing glands to prevent leaks.