JIB, PILLAR AND PORTABLE FLOOR CRANES, CRABS AND WINCHES
§ 25.91. Construction, operation and maintenance.
(a) Side pulls. Side pulls shall not be made with jib or pillar cranes. The arm or boom shall be directly over the load when making a lift.
(b) Enclosing of gears. The gears of all cranes shall be enclosed. If hand-operated by means of a crab or winch, a locking dog shall be provided to hold the load when the handle is released.
(c) Brakes. Some form of brake or safety-lowering device shall be provided on all crabs, winches and jib cranes.
(d) Limiting device. An approved hoist-limiting device shall be provided on all jib cranes of ten or more tons capacity.
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