A professional who assists corrugator operator by performing any combination of following tasks. Responsibilities include:

• Inserts spindle through core of roll and adjusts collars to center roll on spindle.
• Attaches electric hoist hooks to spindle, hoists roll onto machine feedrack, and turns wingnuts to fasten clamps over ends of spindle.
• Splices end of new roll to end of spent roll, using tape.
• Mixes starch powder with water to form adhesive, according to formula, and fills glue reservoirs.
• Performs other tasks as described under helper master title.