2014_2019.pdf

AN AM E R IC AN NAT IO NAL STANDARD ASME B30.21-2014Revision of B30.21-2005(R2010)Lever HoistsSafety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and SlingsASME B30.21-2014Revision of ASME B30.21-2005(R2010)Lever HoistsSafety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and SlingsAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York,NY 10016 USADate of Issuance:May 30,2014The next edition of this Standard is scheduled for publication in 2019.This Standard will becomeeffective 1 year after the Date of Issuance.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org/as they are issued.Interpretations will also be included with each edition.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published items,or to correct typographical or grammatical errorsin codes and standards.Such errata shall be used on the date posted.The Committee Pages can be found at http:/cstools.asme.org/.There is an option available toautomatically receive an e-mail notification when errata are posted to a particular code or standard.ThisoptioncanbefoundontheappropriateCommitteePageafterselecting“Errata”inthe“PublicationInformation”section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assume any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2014 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.ivCommittee Roster.viB30 Standard Introduction.viiiSummary of Changes.xiChapter 21-0Scope,Definitions,Personnel Competence,and References.1Section 21-0.1Scope of ASME B30.21.1Section 21-0.2Definitions.1Section 21-0.3Personnel Competence.7Section 21-0.4References.7Chapter 21-1Construction and Installation.8Section 21-1.1Marking.8Section 21-1.2Construction.8Section 21-1.3Translation.10Chapter 21-2Inspection and Testing.11Section 21-2.1Inspection.11Section 21-2.2Lifting Load Chain,Rope,or Web Strap Inspection.14Section 21-2.3Testing.15Chapter 21-3Operation and Operator Training.16Section 21-3.1Training.16Section 21-3.2Hoisting Practices for Operators.16Chapter 21-4Maintenance and Maintenance Training.18Section 21-4.1Training.18Section 21-4.2Maintenance.18Section 21-4.3Welded Link Chain Replacement and Maintenance.18Section 21-4.4Roller and Rollerless Chain Replacement and Maintenance.19Section 21-4.5Rope Replacement and Maintenance.19Section 21-4.6Web Strap Replacement and Maintenance.20Figures21-0.1-1Lever Hoist Chain Type.221-0.1-2Lever Hoist Rope.321-0.1-3Lever Hoist Web Strap.321-0.2-1Lever Hoist Chain Type.421-0.2-2Load Chain.521-0.2-3Guide and Load Sprocket-Strap.521-0.2-4Load Controlling Mechanism.621-0.2-5Overtravel Restraint.621-0.2-6Load Sprockets.721-1.2.6-1Swivel Type Hook.9Tables21-2.1.4-1Minimum Frequent Inspection for Lever Hoists.1221-2.1.5-1Minimum Periodic Inspection for Lever Hoists.13iiiFOREWORDThis American National Standard,Safety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and Slings,has been developed under the procedures accredited by the AmericanNational Standards Institute(ANSI).This Standard had its beginning in December 1916,whenan eight-page“Code of Sa