Clean hoppers, and clean spillage from tracks, walks, driveways, and conveyor decking

Pry off loose material from roofs and move it into the paths of machines, using crowbars

Stop gathering arms when cars are full

Operate levers to move conveyor booms or shovels so that mine contents such as coal, rock, and ore can be placed into cars or onto conveyors

Replace hydraulic hoses, headlight bulbs, and gathering-arm teeth

Drive machines into piles of materials

Oil, lubricate, and adjust conveyors, crushers, and other equipment, using hand tools and lubricating equipment

Move trailing electrical cables clear of obstructions