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       CODE: 523.682-022 Buy the DOT:Download/CD-ROM
TITLE(s): DRIER OPERATOR (can. & preserv.; dairy products) alternate titles: powder operator
Controls vacuum-drying equipment to convert egg or milk liquids into powder of specified moisture
content: Couples spray unit between pipeline and drier, using wrench. Places charts in temperature
and vacuum recorders. Starts gas-fired drier, vacuum pump, and circulating fan, and adjusts dampers.
Turns controls and observes gauges to obtain specified temperature and vacuum pressure in dryer.
Starts pump and turns valves to spray liquid into heated vacuum chamber where milk droplets are
dried into powder. Tests dried powder conveyed out of drier, using meter. Observes interior of
chamber walls for burned scale which indicates excessive temperature. Adjusts temperature of dryer
and amount of liquid sprayed into dryer to obtain specified moisture content and eliminate scale
which appears as sediment in powder. Places container on scale under outlet of drying equipment to
fill container with specified amount of powder. May be designated according to product dried as
Buttermilk-Drier Operator (dairy products); Yolk Spray Drier (can. & preserv.).
GOE: 06.02.15 STRENGTH: M GED: R3 M2 L3 SVP: 4 DLU: 77
ONET CROSSWALK: 92921 Roasting, Baking, and Drying Machine Operators and Tenders, Food and Tobacco
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