49 C.F.R. § 230.97 Crank pins.
Title 49 - Transportation
(a) General provisions. Crank pins shall be securely applied. Securing the fit of a loose crank pin by shimming, prick punching, or welding is not permitted. (b) Maintenance. Crank pin collars and collar fasteners shall be maintained in a safe and suitable condition for service.
Title 49: Transportation
PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS
Subpart C—Steam Locomotives and Tenders
Driving Gear
§ 230.97 Crank pins.
