Job Description:

• 1) Tends covering machine that twists one or more strands of yarn around rubber or synthetic yarn cores to produce elastic yarn: Threads narrow strip of rubber through feed rollers and splitting mechanism, or separates partially cut strands of rubber, or places cones of core yarn or rubber thread on holders.

• 2) Draws ends of core yarn or rubber through guide and hollow spindles, using hook, and laps ends around takeup package.

• 3) Positions yarn supply packages on spindles, threads ends through guides and tensions, and wraps ends around yarn or rubber core.

• 4) Observes operation to detect defective twisting caused by taut or slack yarn and turns setscrew to adjust tension.

• 5) Ties broken ends.

• 6) Replaces exhausted supply of yarn or rubber and ties ends to ends in machine.

• 7) Doffs machine and places empty takeup packages on holders.

• 8) May compare measurements of relaxed and stretched covered rubber, and adjust speed of takeup mechanism that controls rubber tension to ensure stretch of specified length.