API-RP-2D-OPERATION AND MAINTENANCE OF OFFSHORE CRANES by API PDF

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This steered perform establishes common rules for the secure operation and upkeep of offshore pedestal-mounted revolving cranes on fastened or floating offshore structures, offshore aid vessels, jackup drilling rigs, semi-submersible drilling rigs and different varieties of cellular offshore drilling devices (MODUs). This rfile additionally presents necessities and proposals for body of workers education, raise making plans, pre-use inspection, and trying out of transitority cranes which are erected offshore.

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If returns are due to processing or shipping errors, API will refund the third class postage. S. Dollars) *To be placed on Standing Order for future editions of this publication, place a check mark in the space provided. Pricing and availability subject to change without notice. , Washington, DC 20005-4070 Fax Orders: (202) 962-4776 Phone Orders: (202) 682-8375 To better serve you, please refer to this code when ordering: COPYRIGHT 2002; American Petroleum Institute L A 4 4 8 0 Document provided by IHS Licensee=Qatar Petroleum/5943408103, User=, 10/11/2002 23:29:59 MDT Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

General purpose bolt torque charts may not be applicable due to the various bolt materials, platings, surface finishes, joint designs, etc. found in use. Loose or incorrectly preloaded mounting bolts is one of the major causes of swing circle assembly failure. || | | || ||| || 2. Crane/Bearing Connection Integrity The crane/bearing can be connected using bolts, welding or combinations of the two. The integrity of this connection is crucial to the life of the swing circle assembly. The crane and/ or swing circle assembly manufacturer should be contacted for guidance when developing the inspection procedures, as each crane is unique.

Rotation or twisting of the load can cause excessive stress on the attachment connection and reduce the sling’s capacity or pull out. 2. Slings used in choker configurations have a rated capacity of 70% of vertical load limit of a single leg sling if the choke angle is 120° or greater. 9. 3. For bridle slings and basket hitches where both legs are not vertical use of the following equation for computation of the sling arrangement rated capacity. 1) times the number of legs times the cosine of angle A.

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