A professional who tends equipment that washes taconite ore dust collected from air. Respnsibilities include:

• Starts dust collection equipment and turns valves to adjust pressure to required level as indicated by manometer.
• Examines parts of dust collector, such as pipes, nozzles, strainers, and collection surfaces, for pluggings, breaks, leaks, and residue.
• Closes water valves and stops pumps to permit cleaning and repairing of equipment.
• Washes residue from collection surfaces, pumps, hoppers, and fans, using water hose.
• Turns threaded water nozzles into fittings to change type of nozzle or to replace defective ones.
• Removes mesh strainers and cleans them, using airhose.
• Tightens glands on pumps and valves, using wrenches.
• May record gauge readings.
• May tend equipment that extracts carbon dust from air.