BASE 1555745 - Caterpillar

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. Ultraviolet 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 Society
2501 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 Labor
Washington, D.C. 20210
Pitch Link Bracket To Dozer Blade Retrofit
Note: Fabricate all the reinforcement plates from high strength structural steel. The high strength structural steel should have a yield strength of 289.4 MPa (42000 psi) and a thickness of 8 mm (0.3 inch).
Illustration 1 g03324245
Example of failure before rework.Fabricated Part
Illustration 2 g03312277
Reinforcing Plate, Flat Pattern (A) 12.8 mm (0.50 inch) (B) 57 mm (2.24 inch) 2 Places (C) 10 mm (0.39 inch) Radius (D) 60 mm (2.36 inch) Radius (E) 206 mm (8.11 inch) Minimum (F) 270 mm (10.63 inch) Note B (G) 150.2 mm (5.91 inch) Note B (H) 62 mm (2.44 inch) Radius (J) 130 mm (5.12 inch) Radius (K) 320 mm (12.60 inch) (L) 100 mm (3.94 inch) Note A and Note BNote: (A) This dimension must be adjusted such that the bottom (non-beveled) edge of plate does not lie on a weld seam when placed on blade.Note: (B) This dimension will change depending on the model of blade. Use template to determine exact dimensions for blade being repaired.
Illustration 3 g03312220
Side view of reinforcing plate. (M) 280.4 mm (11.0 inch) NOTE B. (N) 56.0 mm (2.2 inch) Radius (P) 155.9 mm (6.1 inch) NOTE B. (R) 159.6 mm (6.3 inch) NOTE B. (S) 8 mm (0.3 inch)Note: (A) This dimension must be adjusted such that the bottom (non-beveled) edge of plate does not lie on a weld seam when placed on blade.Note: (B) This dimension will change depending on the model of blade. Use template to determine exact dimensions for blade being repaired.
Illustration 4 g03323992
(T) 2 mm (0.08 inch) Maximum (U) 45°Note: Measure tower width before cutting out reinforcement plate. Adjust dimensions (E) and (L) to maintain dimension (V) from point (W) and (Y). Refer to Illustration 5.Rework Procedure
Remove and clean the existing weld from point (W) to (Y). Refer to Illustration 5.
Weld repair any cracks or gouges and grind surfaces flush.
Cut out cardboard to make template, refer to Illustration 2. See Note A and B.
Check template formed against blade and tower for proper fit, refer to Illustration 3. See Note A and B.
Place cardboard on recommended steel plate and trace the