![]() ![]() The leverage the load exerts on the crane. Load Moment: The force applied to the crane by the load.Jib: An extension attached to the boom point to provide additional boom length for lifting specified loads.Critical Lift: Any lift: utilizing multiple cranes exceeding 85% of total capacity of the crane at lift radius over an occupied structure or public street of lifting an item of high value or long replacement time.The weight of the load, times the distance from the fulcrum, is the overturning moment. Crane: A Crane is a lever and the simple principles of movement apply. ![]() Boom Length: The distance along the centerline of the boom from the center of the boom foot pin to the center of the boom point sheave pin.Boom Angle: The angle above or below horizontal of the longitudinal axis on the boom base section.Boom: A pivoting structure attached to the upper that supports the ball and/or block.Produce a collection of 28 volumes on the safe use of equipment in the workplace ASME: American Society of Mechanical Engineers.Provides the accrediting methodology for development of ASME standards among others. ANSI: American National Standards Institute.
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