A professional who tends semiautomatic pairing machines that twist two or more wires together to form insulated telephone or electrical wire, following instructions on production tags. Responsibilities include:

• Attaches ends of two wires together; feeds paired wires through guides on bow, around capstan, over guide rollers; and attaches them to takeup reel.
• Sets counter and presses button to start takeup and pairing motors.
• Turns adjustment screws to maintain feed and rheostat to maintain running, stopping, and takeup tension.
• Stops machine to replace empty or filled reels and to check for and repair bare spots in insulation and breaks in wire.
• Tests paired wires for possible shorts.