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DOT Code: 934.685-010

Industry: mine & quarry

Tends cone (gravity device) to separate slate and rock from coal: Presses buttons to start conveyor and regulate flow of material into top of cone. Turns valve to regulate flow of water into bottom of cone and maintain specified pressure to carry coal off with overflow while rock and slate fall to bottom. Pulls lever to open slate gate at bottom and draw off impurities.

GOE: 05.12.07 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77