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Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc. Welding can cause fumes, burn skin and produce ultraviolet rays. Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working. Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolent rays from the weld arc can injure eyes and burn skin. Electric shock can cause death. Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts. See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society. American Welding Society2501 N.W. 7th Street Miami, Florida 33125 See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor. U.S. Department of LaborWashington, D.C. 20210 |
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| Illustration 1 | g00466351 |
Note: The crushing teeth must be removed from the jaw before the teeth are rebuilt.
Note: The teeth should be rebuilt when 13 mm (0.5 inch) of the profile is worn away.
- Clean the teeth with a nonflammable solvent and a wire brush.
- Use a hand grinder in order to remove foreign material from the surface that is damaged. Use a hand grinder to remove burrs from the surface that is damaged.
- Heat the entire tooth to 110 to 130°C (230 to 270°F).
Note: Use a 1U-8865 Infrared Thermometer or the equivalent in order to check the heat of the tooth.
- Use 9U-6642 welding electrode .
- Apply the weld along the length of the tooth in a single pass.
- Start at the crown of the tooth and apply the weld along each side of the tooth.
- Apply a complete layer of weld to one side of the tooth before welding the other side of the tooth.
- Remove the slag before adding another layer of weld.
- Allow the tooth to cool to room temperature.