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DOT Code: 510.465-014

Industry: smelt. & refin.

Tends ball mill and auxiliary equipment that grind bauxite and mix it with materials to form slurry: Computes amounts of bauxite, starch, and liquor in specified proportion, using weightometer. Turns valves on ball mill to grind bauxite. Turns valves on pumps to release liquor and starch from storage bins and to mix them with bauxite to form slurry. Starts pumps to transfer slurry to digester feed tanks. Opens and closes valves to pump sodium sulfide solution into slurry. Lubricates valves with grease gun, and adjusts packing glands to prevent leaks.

GOE: 06.02.10 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77