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TITLE(s): HORIZONTAL-EARTH-BORING-MACHINE-OPERATOR HELPER (construction) alternate titles: boring-machine-operator helper Performs any combination of following duties to aid in drilling of horizontal holes for installation of pipelines under highways, railroads, canals, and other obstructions: Lays foundation timbers for boring machine and places timber braces to hold machine in place. Couples auger sections together and bolts sections to drive shaft. Removes dirt from hole, using shovel. Removes seepage water from boring machine pit, using portable sump. May place props between hydraulic rams and end of casing pipe. May hammer steel wedges into shaft collar to lock auger drive to ram yoke. May weld sections of casing pipe together, using arc-welding equipment. GOE: 05.12.02 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77 | |||||||||||||||||||||||||||||||||||
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