Operate or tend equipment, such as cooling and freezing units, refrigerators, batch freezers, and freezing tunnels, to cool or freeze products, food, blood plasma, and chemicals.
<ul><li>Record temperatures, amounts of materials processed, or test results on report forms.</li><li>Monitor pressure gauges, ammeters, flowmeters, thermometers, or products, and adjust controls to maintain specified conditions, such as feed rate, product consistency, temperature, air pressure, and machine speed.</li><li>Read dials and gauges on panel control boards to ascertain temperatures, alkalinities, and densities of mixtures, and turn valves to obtain specified mixtures.</li><li>Start machinery, such as pumps, feeders, or conveyors, and turn valves to heat, admit, or transfer products, refrigerants, or mixes.</li><li>Correct machinery malfunctions by performing actions such as removing jams, and inform supervisors of malfunctions as necessary.</li><li>Assemble equipment, and attach pipes, fittings, or valves, using hand tools.</li></ul>