A professional who sets up, adjusts, and repairs group of textile machines (usually of one type, called section). Responsibilities include:

• Transmits orders of supervisor master title of section to workers and ensures that orders and safety rules are followed.
• Patrols section to inspect work for quality and to determine operating condition of machinery.
• Reads production meters or tickets and records total number of units produced.
• Examines laboratory sample reports to determine machine adjustments needed to meet company specifications.
• Adjusts and repairs machines.
• Trains new workers and assigns workers to stations.
• May be designated according to section as section leader and cards machine setter; section leader and drawing and combers machine setter; section leader and opening and picking machine setter; section leader and roving frames machine setter; section leader and spinning machine setter; section leader and winding and twisting machine setter.