{"data":{"id":"us/49-cfr-229.55","jurisdiction":"us","citation":"49 CFR 229.55","heading":"Piston travel.","body":"(a) Brake cylinder piston travel shall be sufficient to provide brake shoe clearance when the brakes are released.\n(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.\n(c) The minimum brake cylinder pressure shall be 30 pounds per square inch.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 229—RAILROAD LOCOMOTIVE SAFETY STANDARDS","Subpart C—Safety Requirements"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"161ab24b6b7e693990e9b504d16e805208b560eea76d47b9e7e2717e35679c46","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-229.53","next":"us/49-cfr-229.57"},"notice":"GroundRules: Original legal text. Not legal advice."}