Title 49: Transportation
PART 229—RAILROAD LOCOMOTIVE SAFETY STANDARDS
Subpart C—Safety Requirements
Suspension System
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§ 229.67 Trucks.
(a) The male center plate shall extend into the female center plate at least3/4inch. On trucks constructed to transmit tractive effort through the center plate or center pin, the male center plate shall extend into the female center plate at least 11/2inches. Maximum lost motion in a center plate assemblage may not exceed1/2inch.
(b) Each locomotive shall have a device or securing arrangement to prevent the truck and locomotive body from separating in case of derailment.
(c) A truck may not have a loose tie bar or a cracked or broken center casting, motor suspension lug, equalizer, hanger, gib or pin. A truck frame may not be broken or have a crack in a stress area that may affect its structural integrity.
