[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR229.75]



[Page 394]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 229_RAILROAD LOCOMOTIVE SAFETY STANDARDS--Table of Contents

 

                      Subpart C_Safety Requirements

 

Sec. 229.75  Wheels and tire defects.



    Wheels and tires may not have any of the following conditions:

    (a) A single flat spot that is 2\1/2\ inches or more in length, or 

two adjoining spots that are each two or more inches in length.

    (b) A gouge or chip in the flange that is more than 1\1/2\ inches in 

length and \1/2\ inch in width.

    (c) A broken rim, if the tread, measured from the flange at a point 

five-eighths inch above the tread, is less than 3\3/4\ inches in width.

    (d) A shelled-out spot 2\1/2\ inches or more in length, or two 

adjoining spots that are each two or more inches in length.

    (e) A seam running lengthwise that is within 3\3/4\ inches of the 

flange.

    (f) A flange worn to a \7/8\ inch thickness or less, gauged at a 

point \3/8\ inch above the tread.

    (g) A tread worn hollow \5/16\ inch or more on a locomotive in road 

service or \3/8\ inch or more on a locomotive in switching service.

    (h) A flange height of 1\1/2\ inches or more measured from tread to 

the top of the flange.

    (i) Tires less than 1\1/2\ inches thick.

    (j) Rims less than 1 inch thick on a locomotive in road service or 

less than \3/4\ inch on a locomotive in yard service.

    (k) A crack or break in the flange, tread, rim, plate, or hub.

    (l) A loose wheel or tire.

    (m) Fusion welding may not be used on tires or steel wheels of 

locomotives, except for the repair of flat spots and worn flanges on 

locomotives used exclusively in yard service. A wheel that has been 

welded is a welded wheel for the life of the wheel.



                            Electrical System