49 C.F.R. § 230.113 Wheels and tire defects.
Title 49 - Transportation
Steam locomotive and tender wheels or tires developing any of the defects listed in this section shall be removed from service immediately and repaired. Except as provided in §230.114, welding on wheels and tires is prohibited. A wheel that has been welded is a welded wheel for the life of the wheel. (a) Cracks or breaks. Wheels and tires may not have a crack or break in the flange, tread, rim, plate, hub or brackets. (b) Flat spots. Wheels and tires may not have a single flat spot that is 2 (c) Chipped flange. Wheels and tires may not have a gouge or chip in the flange that is more than 1 (d) Broken rims. Wheels and tires may not have a circumferentially broken rim if the tread, measured from the flange at a point (e) Shelled-out spots. Wheels and tires may not have a shelled-out spot 2 (f) Seams. Wheels and tires may not have a seam running lengthwise that is within 3 (g) Worn flanges. Wheels and tires may not have a flange worn to a (h) Worn treads. Wheels and tires may not have a tread worn hollow (i) Flange height. Wheels and tires may not have a flange height of less than 1 inch nor more than 1 (j) Rim thickness. Wheels may not have rims less than 1 inch thick. (k) Wheel diameter. Wheels may not have wheel diameter variance, for wheels on the same axle or in the same driving wheel base, greater than
Title 49: Transportation
PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS
Subpart C—Steam Locomotives and Tenders
Wheels and Tires
§ 230.113 Wheels and tire defects.