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       CODE: 811.482-010 Buy the DOT:Download/CD-ROM
TITLE(s): WELDING-MACHINE OPERATOR, GAS (welding) alternate titles: welder, gas, automatic
Sets up and operates oxy-fuel-gas-welding machine to weld metal parts, according to work order,
blueprints, layout, and operating charts: Clamps workpieces into holding fixture on machine bed,
movable carriage, or turntable. Positions and clamps or bolts welding torch onto overhead carriage,
radial arm, or into stationary fixture at specified angle and distance from workpiece. Turns cranks
to align torch with weld line. Selects torch tip, filler wire, and flux, according to charts or
thickness and type of metal. Fills hoppers with flux and positions spout over weld line. Places reel
of filler wire onto spindle and threads end through feed rolls to welding seam. Connects hoses from
torch to regulator valves and cylinders of oxygen and fuel gas. Turns regulator valves to start flow
of gases, lights torch, and adjusts gas mixture and pressure to obtain flame of desired size and
color. Turns knobs to synchronize movement of torch or workpiece, feed of flux and filler with
welding action, and sets switch to stop machine at end of weld. Starts machine, observes welding
action, and examines weld for defects. Adjusts machine setup to vary bead size and other weld
characteristics. May record setup and operating data. May reweld defective joints, using handtorch.
May preheat workpiece in furnace. May lay out, fit, and tack-weld workpieces together. May operate
machine equipped with two or more welding torches. May remove surplus flux, slag, and splatter,
using wirebrush, portable grinder, and hand scraper.
GOE: 06.02.19 STRENGTH: M GED: R3 M3 L2 SVP: 6 DLU: 77
ONET CROSSWALK: 91702 Welding Machine Setters and Set-Up Operators
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