SUPPORT AS 6Y3964 - Caterpillar

Introduction
The problem that is identified below does not have a known permanent solution. until a permanent solution is known, use the solution that is identified below.Problem
The lower engine enclosures may get damaged from debris on D6R Series III tractors that are equipped with a VPAT blade. Debris is entering between the case and the frame and lower engine enclosures.Solution
Repair the D6R Series III with the procedure below.Safety
Personal injury can result from flame cutting or welding on painted areas.The effect of gasses from burned paint is a hazard to the person doing the cutting or welding.Do not flame cut or weld on painted areas.
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
Necessary Parts
Table 1
Required Parts    
Item     Part Number     Description     Quantity    
1     4T-6774     Bar     2    
2     2G-8286     Plate     2    
Illustration 1 g01338303
(1) 4T-6774 Bar Dimension (A) 380 2 mm (14.961 0.079 inch). (B) Dimension for view A-A 25 mm (0.984 inch) by 25 mm (0.984 inch) (2) 2G-8286 Plate Dimension (C) 175 2 mm (6.890 0.0789 inch). (D) Dimension for view B-B 25 mm (0.984 inch) by 25 mm (0.984 inch)Note: 4T-6774 Bar and 2G-8286 Plate can be fabricated with 25 mm (0.984 inch) by 25 mm (0.984 inch) mild steel, and the dimensions that are shown in Illustration 1.
Prepare the surface on the tractor frame for welding.
Illustration 2 g01338087
Tack weld bar (1) and plate (2) to the tractor frame. Keep a 3 mm (0.118 inch) gap (E) between bar (1) and plate (2) and the lower engine enclosure. Keep a 12 mm (0.472 inch) gap (F) from the edge of bar (1) and the tractor frame.
Illustration 3 g01338520
Weld a continuous 6 mm (0.236 inch) fillet weld (5) on the underneath side of bar (1) and plate (2) .