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TITLE(s): GLUE MAKER, BONE (chemical) Controls pressure, temperature, and water level of cooking tanks, and operates centrifuges and separators, to manufacture animal glue: Admits hot water and steam into cooking tanks containing crushed animal bones, following specifications [BONE-COOKING OPERATOR (chemical)]. Opens valves to drain glue and tallow solutions (grease) into separate vats [PRESSURE-TANK OPERATOR (chemical)]. Starts centrifuge machine that separates animal oils (grease) from glue solution [CENTRIFUGE-SEPARATOR OPERATOR (chemical)]. Cooks glue solution to evaporate water from glue. Reads gauge of hydrometer to determine percentage of glue solid in solution. Disassembles plates of centrifuge, using wrench and hoisting device; and cleans plates, using brush and abrasives. May weigh and add specified amounts of chemical to preserve glue. May direct other workers engaged in cleaning tanks or vats. GOE: 06.02.18 STRENGTH: M 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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