[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR229.57]

[Page 432]
 
                        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.  229.57  Foundation brake gear.

    A lever, rod, brake beam, hanger, or pin may not be worn through 
more than 30 percent of its cross-sectional area, cracked, broken, or 
missing. All pins shall be secured in place with cotters, split keys, or 
nuts. Brake shoes shall be fastened with a brake shoe key and aligned in 
relation to the wheel to prevent localized thermal stress in the edge of 
the rim or the flange.