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1910.68(b)(11) Top Arrangements
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A top clearance shall be provided of at least 11 feet above the top terminal landing. This clearance shall be maintained from a plane through each face of the belt to a vertical cylindrical plane having a diameter 2 feet greater than the diameter of the floor opening, extending upward from the top floor to the ceiling on the up-running side of the belt. No encroachment of structural or machine supporting members within this space will be permitted.
An emergency grab bar or rail and platform shall be provided at the head pulley when the distance to the head pulley is over 6 feet above the top landing, otherwise only a grab bar or rail is to be provided to permit the rider to swing free should the emergency stops become inoperative.
There shall be a clearance of at least 5 feet between the center of the head pulley shaft and any ceiling obstruction.
The center of the head pulley shaft shall be not less than 6 feet above the top terminal landing.
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