CRANKSHAFT GP 2410312 - Caterpillar

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
Note: Personal breathing protection should be worn by the personnel that are welding. Personal breathing protection will prevent fumes from entering the lungs of the person that is welding. Use a 1U-8088 Type H Respirator for breathing protection.Problem
Cracks may develop in the welds on the crossmember in the front frame. Cracks may occur at the support plates for the lift cylinder or at the joint between the crossmember and the side plates of the frame. The root cause of these cracks is unknown.Solution
Illustration 1 g01416386
Inspect the crossmember in order to determine if cracks are present. Refer to Illustration 1 for the locations that should be inspected. If cracks are present, report the cracks to Large Wheel Loader Product Support through the Dealer Solution Network (DSN).Note: When you report these cracks to the DSN, refer to the correct part number. If the cracks are around the plates that support the lift cylinder, refer to the 148-6707 Crossmember As . If the cracks are at the joint between the crossmember and the side plate of the frame, refer to the 257-2539 Front Frame As .Note: The 148-6707 Crossmember As is not a serviceable part.Use the procedure that follows in order to repair cracks in the welds of the crossmember.
Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "System Pressure - Release" for the machine that is being serviced.
Remove the lift cylinder from the machine. Refer to Disassembly and Assembly, "Lift Cylinder - Remove and Install" for the machine that is being serviced.
Illustration 2 g01416495
Crossmember (rear view) (1) Gusset plate
If a weld that is beneath the gusset plate is cracked, the gusset plate should be removed. Refer to the following steps in order to remove the gusset plate.
Illustration 3 g01416675
(2) Alignment bars
Tack weld two alignment bars to the plates that form the mount for the lift cylinder. These bars will keep the bores in alignment after the