A professional who tends intermediate units of cloth or other textile goods desizing, bleaching, dyeing, or finishing ranges, such as washboxes, tenter frame, drying cans, and curing ovens: Turns valves to admit steam, water, and chemicals to washboxes and chemical troughs.

• Patrols area between entry and terminal units to detect faulty operation of equipment.
• Turns knobs to adjust temperature in drying and curing units and to regulate speed of motor-driven rollers, according to specifications.
• Reports grease spots, holes, and tears in cloth to operator of range.
• Disentangles tear-outs, rethreads unit, and sews torn cloth, using portable sewing machine.
• May mix chemicals or dyes.
• May test strength of chemical solutions by titration or with hydrometer.
• May be designated according to process as cloth-bleaching-range tender; cloth-desizing-range tender; cloth-dyeing-range tender; tire-fabric-impregnating-range tender.