49 CFR 229.55
§ 229.55 Piston travel.
United States · 49 CFR — Transportation · Status: effective
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- Citation
- 49 CFR 229.55, § 229.55 Piston travel, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/258532
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Full text
(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.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.