Crossheads shall be maintained in a safe and suitable condition for service, with not more than¼ inch vertical or 5/16 inch lateral clearance between crossheads and guides.
49 C.F.R. § 230.94
Crossheads shall be maintained in a safe and suitable condition for service, with not more than¼ inch vertical or 5/16 inch lateral clearance between crossheads and guides.
49 C.F.R. § 230.94