Cuts and trims broken sections of tire with knife. Scrapes and cleans area, using electrically or air-rotated wire brush.
Coats break on inside of tire with rubber cement.
Cuts raw and corded rubber patches and rolls them into rupture, using hand roller, to ensure adhesion. Covers rupture on outside of tire with tread rubber and works rubber into hole with hand roller. Trims patch, using knife. Places tire in tire mold of vulcanizing machine which has been heated to specified temperature. Adjusts air or steam bag inside tire, inflating it to exert pressure on tire in mold.