SHAFT 4712460 - Caterpillar

Removal
Disassemble the track roller frame from the machine.
Disassemble all components necessary to provide safe access to the welds securing the damaged components.
Clean areas where the rework will be done. Remove dirt, painting, slag, grease, and oil.
Illustration 22 g06169060
Illustration 23 g06169124
Create 2 brace bars with holes in the ends 168.5 mm (6.60 inch) from center of bars. Locate and bolt the brace bars as shown in Illustration 22 (Blue Marks), to avoid welding deformation.
Illustration 24 g06169204
Remove welds (Red Marks), joining the rock guards to the roller frame, using Arc Gouging or grinding. See Illustration 24
Illustration 25 g06169210
Remove the parts to be replaced and grind the surface to create a clean, smooth area on which to locate the new parts.Installation
Illustration 26 g06169400
Locate guard assembly (1a), (1b), (1c) , or (1d) and (2a), (2b), (2c) , or (2d) using dimensions 13 1.5 mm (0.51 0.06 inch) as shown in Illustration 23. Tack weld bars when guards are in position as shown in Illustration 26 (Blue Marks).
Tack weld guard assembly (1a), (1b), (1c) , or (1d) and (2a), (2b), (2c) , or (2d) .
Illustration 27 g06169227
Illustration 28 g06169406
Weld guard assembly (1) and guard assembly (2). See Illustration 27 and 28.
Illustration 29 g06169268
Turn the assembly 90° to perform welds in Illustration 29.
Turn the assembly 180° and repeat Step 4.
Repeat Steps 1 through 5 for the other assembly.
After cooled, remove brace bars, clean, and paint the repaired area. Reassemble the assemblies to the machine.Reference Section
Reference: RESH1841, "General Welding Procedures"