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Description:Heavy items can be lifted safely if the boom truck crane is operated properly. Each time the boom lifts a load, its angle changes as it extends, and the crane’s upper deck rotates to swing the load. With that motion, the distance from the load’s center of gravity to the crane’s tipping axis changes. These movements can make a boom truck unstable, especially if the crane’s lift capacity is exceeded. The crane can overturn and the boom can collapse.
CPWR_Boom_Collapse_1.pdf
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