Work at opposite ends of coal strata.
What does a Tailer do?
Works at opposite end of coal strata assisting LONG-WALL-MINING-MACHINE TENDER to advance plow blade through face of coal in underground or surface mine: Pulls levers to adjust depth of penetration of blade. Signals LONG-WALL-MINING-MACHINE TENDER by electronic buzzer or two-way radio when machine plow blade is properly positioned. Adjusts and makes minor repairs to equipment, using handtools. May assist in positioning jacks, timbers, or roof supports to prevent cave-ins when working underground.