A professional who tends vacuum screen that screens magnesium liquor and briquette press equipment that presses screened residue (filter cake) to form briquettes of periclase (refractory material). Respnsibilities include:

• Flips control panel switches to start multilevel arrangement of vacuum screen feeder wheel, vacuum screen hearth kiln, and briquette press.
• Observes vacuum screen feeder wheel to verify that cups positioned on feeder wheel are full of magnesium liquor for emptying onto vacuum screen.
• Turns dials on control panel to adjust speed of vacuum screen feeder wheel and vacuum screen to control thickness of filter cake, following prescribed procedure.
• Reads counter on feeder wheel to determine revolutions per hour and records totals in logbook.
• Moves control knobs to adjust amount of filter cake fed from hearth furnace onto conveyor and into briquette press.
• Turns knobs to regulate speed and pressure of briquette rollers that form briquettes.
• Observes indicator lights and gauges on control panels to detect equipment malfunction and notifies supervisor.
• Records equipment downtime in logbook.