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TITLE(s): FILTER OPERATOR (grain-feed mills) Operates filter machine to separate contaminants from cornstarch and controls temperature and specific gravity of starch suspension fed to filters: Turns valves to admit water to dilute starch suspension in standardization tank, until hydrometer indicates specific gravity of solution conforms to specifications. Starts pumps and turns valves to transfer starch suspension between filter and tanks, and to regulate flow of wash water to filter spray nozzles. Reads thermometers and turns steam valves to heat tank coils and maintain specified temperature of water. Assists in changing filter cloths, and repairs or replaces broken filter strings. May flush soiled filter cloths, using hose. May insert wires into filter nozzles to clear clogging. May standardize starch suspensions in batch tanks after filtering [BATCH-TANK CONTROLLER (grain-feed mills)]. GOE: 06.02.15 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77 ONET CROSSWALK: 92962 Separating, Filtering, Clarifying, Precipitating, and Still Machine Operators and Tenders | |||||||||||||||||||||||||||||||||||
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