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       CODE: 699.384-010 Buy the DOT:Download/CD-ROM
TITLE(s): COMPARATOR OPERATOR (any industry) alternate titles: shadowgraph operator
Inspects parts for defects in finish and dimensions, using machine that projects magnified shadows
of parts on screen: Reads specifications of part to ascertain form and degree to be magnified. Draws
enlarged outline of part to scale on chart (celluloid disk), using scribers, dividers, and
straightedge. Places chart over translucent glass disk of comparator (shadowgraph) machine. Inserts
specified lens into machine and adjusts mirrors to magnify parts. Positions and secures parts on
machine table. Turns light on and moves levers of machine to bring shadows of parts into focus with
chart outline. Inspects shadows for imperfections of finish and incorrect dimensions. Prepares
reports of findings. May rotate part in holding fixture to examine surfaces and to verify
concentricity of parts.
GOE: 06.03.01 STRENGTH: L GED: R3 M3 L3 SVP: 4 DLU: 77
ONET CROSSWALK: 83005A Production Inspectors, Testers, Graders, Sorters, Samplers, Weighers
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