Patent ID: 6941639

Claim:
A method of repairing a generator rotor having a rotor tooth with a tooth root and a tooth top, said tooth top including an outboard and an inboard region for supporting a retaining ring, wherein said outboard and inboard regions each comprise a retaining-ring land, a wedge land, and a fillet, said method comprising the steps of: inspecting said fillet of said outboard region with a non-destructive testing means to determine the maximum depth cracks in said fillet; when said maximum depth of said cracks in said outboard fillet are less than or equal to about 0.03″, removing at least about 0.06″ of material beyond said fillet and directly radial, wherein said wedge land of said outboard region is removed; when said maximum depth of said cracks in said outboard fillet are greater than about 0.03″ and less than about 0.07″, removing about 0.03″ of material beyond said maximum depth of said cracks and directly radial, wherein said wedge land of said outboard region is removed; inspecting said fillet of said inboard region with the non-destructive testing means to determine the maximum depth cracks in said fillet; when said maximum depth of said cracks in said inboard fillet are less than or equal to about 0.03″, removing at least about 0.03″ of material beyond said fillet; and when said maximum depth of said cracks in said inboard fillet are greater than about 0.03″ and less than about 0.06″, removing about 0.03″ of material beyond said maximum depth of said cracks.