Weld ocean-going hulls and hatches together on massive ships.
Sets up battery of automatic machines to assemble primed shell bodies, powder, wads, and shot into complete shotgun shells: Replaces worn or broken machine parts, such as bushings, punches, crimpers, powder and shot chargers, hoppers, springs, and belts, using handtools. Examines samples of assembled shells for defects, such as incomplete crimping, tipped top wads, or blurred printing, and verifies shell length and diameter, using fixed gauges. Cuts open sample shells with knife to determine that components are assembled as specified. Diagnoses cause of defect and replaces worn parts or adjusts setscrews, stop nuts, knurled bolts, and wingnuts by trial and error until machine produces acceptable work. Dismantles machine to gain access to defective parts and to clear jams not removable by operator. Submits samples of first-run shells assembled after adjustment or changeover to ballistics for approval before releasing machine to operator. Takes charges of powder and shot from loading mechanisms and weighs them on grain scale to verify accuracy of charges. Turns knob to regulate charge to meet specifications.