Initial Casing Inspection And Selection For Retreading: External
- Ply separation beyond repairable limits.
- Tread separations which cannot be removed during buffing.
- Broken, damaged, kinked or exposed bead wire bundle.
- Excessive oxidation (i.e., weather checking) extending to the body plies or deeper than 2/32" (1.5 mm).
- Radial truck and bus tires worn to exposed belt wires on more than 10 percent of the worn tire circumference unless a protector belt is to be removed or damaged belts are to be replaced.
- Circumferential cracking.
- Radial truck and bus tires with rust or corrosion beyond repairable limits.
- Any signs of weakness or non-repairable injury (e.g., ripples, bulges, porosity, softness due to contamination from chemical/petroleum products, etc.) in the sidewall - particularly in the upper sidewall.
- Crunching or popping sounds when flexed.
- Surface cuts which exceed the size of a repairable injury and penetrate the cord body.
- Radial ply cracking.
- Improper labeling.