Notify supervisors or mechanics of equipment malfunctions.
Start machines, monitor operation, and make adjustments as needed.
Tend machines with multiple winding units that wind thread onto shuttle bobbins for use on sewing machines or other kinds of bobbins for sole-stitching, knitting, or weaving machinery.
Inspect products to verify that they meet specifications and to determine whether machine adjustment is needed.
Tend machines that twist together two or more strands of yarn or insert additional twists into single strands of yarn to increase strength, smoothness, or uniformity of yarn.
Replace depleted supply packages with full packages.
Observe operations to detect defects, malfunctions, or supply shortages.
Thread yarn, thread, or fabric through guides, needles, and rollers of machines.
Operate machines for test runs to verify adjustments and to obtain product samples.
Tend machines that wind wire onto bobbins, preparatory to formation of wire netting used in reinforcing sheet glass.