Activity Remove the tire from the rim (or simply work with a loose tire). Intentionally pierce the tire tread using pliers and a typical foreign object (screw, nail, etc.). Mark the foreign object location with tire chalk on the inside of the tire. Remove the foreign object with pliers. 3/16" Drill a hole through both the inside and outside of the tire where it was punctured. Buff the inside of the tire around the puncture wound using a buffing wheel and drill. The buffed area should be slightly larger than the tire patch. Apply contact cement to the buffed area. Apply contact cement to the inside area of the puncture wound. This can be done by applying cement to the tire awl and then inserting the awl into the puncture wound. Let the area dry 3–5 minutes. Remove the protective film from the patch/plug repair component and insert the plug from the inside of the tire. From outside of the tire, pull the patch/plug repair component through as far as you can. From inside the tire, use the tire stitching tool to firmly stitch the tire patch/plug to the inside of the tire by rolling it over the patch for 1–2 minutes in multiple directions. Remove the protective plastic film from the tire patch/plug. Remount the tire and inflate it to the proper specification. 1/8" Cut the protruding plug from the outside of the tire to approximately above the tire surface. Reassemble the tire and wheel. Check to make sure the tire patch/plug is not leaking. Evaluation Guidelines Tire Repair Rubric (see next page)
Activity Remove the tire from the rim (or simply work with a loose tire). Intentionally pierce the tire tread using pliers and a typical foreign object (screw, nail, etc.). Mark the foreign object location with tire chalk on the inside of the tire. Remove the foreign object with pliers. Drill a 3/16" hole through both the inside and outside of the tire where it was punctured. Buff the inside of the tire around the puncture wound using a buffing wheel and drill. The buffed area should be slightly larger than the tire patch. Apply contact cement to the buffed area. Apply contact cement to the inside area of the puncture wound. This can be done by applying cement to the tire awl and then inserting the awl into the puncture wound. Let the area dry 3–5 minutes. Remove the protective film from the patch/plug repair component and insert the plug from the inside of the tire. From outside of the tire, pull the patch/plug repair component through as far as you can. From inside the tire, use the tire stitching tool to firmly stitch the tire patch/plug to the inside of the tire by rolling it over the patch for 1–2 minutes in multiple directions. Remove the protective plastic film from the tire patch/plug. Remount the tire and inflate it to the proper specification. Cut the protruding plug from the outside of the tire to approximately 1/8" above the tire surface. Reassemble the tire and wheel. Check to make sure the tire patch/plug is not leaking. Evaluation Guidelines Tire Repair Rubric (see next page)
Tirerepair.docx