[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: 49CFR229.55]

[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.  229.55  Piston travel.

    (a) Brake cylinder piston travel shall be sufficient to provide 
brake shoe clearance when the brakes are released.
    (b) When the brakes are applied on a standing locomotive, the brake 
cylinder piston travel may not exceed 1\1/2\ inches less than the total 
possible piston travel. The total possible piston travel for each 
locomotive shall be entered on Form FRA F 6180-49A.
    (c) The minimum brake cylinder pressure shall be 30 pounds per 
square inch.