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TITLE(s): HYDRAULIC-PRESSURE-AUTO-FRETTAGE-MACHINE OPERATOR (ordnance) alternate titles: cold-work operator Operates hydraulic-pressure-auto-frettage machine to improve physical characteristics and to detect physical weakness of machined artillery barrels, following specifications: Plugs muzzle end of barrel, sets barrel in vertical container of frettage machine, and tightens clamps to lock barrel in place. Connects water pressure pipes to machine, starts water pumps, and moves controls to apply hydraulic pressure to barrel bore to expand bore to specified diameter. Observes pressure indicators and records pressure and time at specified intervals. Fastens cables around barrel and signals OVERHEAD CRANE OPERATOR (any industry) 921.663-010 to remove barrel from machine. GOE: 06.02.02 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77 | |||||||||||||||||||||||||||||||||||
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