PDFWAC 296-78-825
Jib, pillar, and portable floor cranes, crabs, and winches.
(1) Side pulls must not be made with jib or pillar cranes. The arm or boom must be directly over the load when making a lift.
(2) The gears of all cranes must be enclosed, and if hand operated by means of a crab or winch, a locking dog must be provided to hold load when the handle is released.
(3) Some form of brake or safety lowering device must be provided on all crabs, winches, and jib cranes.
(4) A hoist limiting device must be provided on all jib cranes of ten or more tons capacity.
(5) The rated capacity of the hoisting device must be posted on the hoist and the arm or boom.