A professional who tends system of grinders, crushers, conveyors, vibrating screens, and elevators in salt mill that crush and screen rock salt extracted from mine. Respnsibilities include:

• Moves switches, levers, and other controls on instrument panels to start and stop equipment.
• Reads gauges to verify specified operation of equipment.
• Starts and stops various conveyors to control direction of flow, to store salt of specified size in designated storage bins.
• Observes and listens to operation of equipment and reports malfunctions to supervisor.