Job Description:

• 1) Operates polishing lathe to reduce circumference of printing rollers to specifications and remove defects, such as turning and polishing lines, high spots, and scratches: Mounts roller on mandrel of lathe, using hoist.

• 2) Measures circumference of roller at several points to locate irregular spots, using girth tape.

• 3) Examines surface of roller for defects.

• 4) Depresses pedal to raise water vat and starts lathe to rotate roller in vat.

• 5) Polishes roller by either of following methods: Moves polishing stone back and forth across length of roller, changing from coarse to finer grades of stone to impart acceptably smooth finish.

• 6) Mounts flat stone on spindle of polishing head, starts oscillation of stone, and lowers stone onto surface of rotating roller.

• 7) Moves lever to engage gear that moves machine head back and forth over surface of roller.

• 8) Changes stones on machine head to impart final polish.

• 9) Examines polished rollers for rough spots, pinholes, and scratches.

• 10) Rubs scratches and rough spots with burnishing tool to finish roller.

• 11) Verifies circumference of polished roller, using girth tape.

• 12) Cleans roller before and after polishing, using cloth, water, and detergents or cleaning solution.