Trolley stops, bumpers, rail sweeps and ... - Crane Parts
2021-12-21u2002·u2002A crane shall be provided with bumpers or other automatic means providing equivalent effect, unless the crane travels at a slow rate of speed and has a faster deceleration rate due to the use of sleeve bearings, or is not operated near the ends of bridge and trolley travel, or is restricted to a limited distance by the nature of the crane ...
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