A professional who grinds wire teeth on drums and flats of carding machines to uniform height, and sets up machines according to specifications and fiber processing standards. Responsibilities include:

• Removes fibers adhering to wire teeth of cylinder and doffing drums, using card stripper.
• Removes belts and disengages gears not needed for grinding operation.
• Lifts grinding rollers onto brackets above flats and carding and doffing cylinders of machine.
• Places drive belt between carding machine drive mechanism and grinder rolls, and starts machine.
• Turns setscrews and listens to sound of grinder to regulate pressure of grinding roller on teeth of drum.
• Examines and feels teeth to verify that grinding meets specifications.
• Removes grinding rolls, and brushes emery dust from teeth of cylinder.
• Adjusts clearances between card rolls and flats to set up machine, using leaf, flat, and pin gauges, and listens for contact of surfaces.
• Replaces defective parts, using handtools.
• Cleans and oils machines.
• May replace worn cloth on cylinders of carding machine.
• May remove carding drum and grind drum on separate machine.
• May direct card tender and other cardroom employees in setting up grinding equipment.
• May be designated according to machine repaired as napper grinder.