Overhead & Gantry Cranes - Application of Trolleys & Bridges Brakes

29 CFR §1910.179 provides details on how trolley and bridge brakes must be applied.

For trolleys, a drag brake may be used in order to hold the trolley in a desired position on the bridge. This also helps to stop the equipment from moving once the power is off.

Bridge brakes require the following:

For cab-operated cranes with a cab on the bridge, a bridge brake is required. (See the previous slide or 29 CFR §1910.179 (5)(f)(4) for requirements.)
For cab-operated cranes with a cab on the trolley, a holding-type bridge brake is required.
For remote and pulpit-operated crane bridge with drives on the floor, a non-coasting mechanical drive brake is required.

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