Job Description:

• 1) Operates bench-polishing machine to remove scratches and burrs and to impart polished finish to watch pinion teeth: Positions pinion in machine holder, using tweezers.

• 2) Depresses pedal to engage lapping wheel and holds abrasive and polishing compound against rotating wheel to dress wheel.

• 3) Presses machine lever to lower and hold lapping wheel against pinion to remove defects and polish pinion teeth.

• 4) Releases pedal to stop machine after prescribed period and raises lever to gain access to polished pinion.

• 5) Depresses pedal of hot air device to melt polishing compound adhered to pinion and to blow pinion into container.

• 6) Mounts pinion in holding calipers and cleans pinion, using electric brush and cleaning compound.

• 7) Examines and measures cleaned pinions to verify specified finish and dimensional specifications, using loupe and precision gauges.