ISO INTERNATIONAL STANDARD 10972-3 First edition 2003-07-01 Cranes Requirements for mechanisms Part 3: Tower cranes Appareils de levage a charge suspendue Prescriptions pour les mecanismes Partie 3: Grues a tour Reference number ISO 10972-3:2003(E) @ ISO 2003 CopyrightInternational Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 10972-3:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the ISO2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the address below or IsO's memberbody in the country of the requester. ISO copyright office Case postale 56· CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO2003-All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 10972-3:2003(E) Contents Page 1 Scope 2 Normative references 3 Terms and definitions .. 4 Specific provisions for tower cranes 2 4.1 Design criteria 2 4.2 Power (motors) 3 4.3 Coupling 4 4.4 Brakes . 4 4.5 Out-of-service devices for slewing mechanisms 9 4.6 Hydraulic and pneumatic systems 9 4.7 Gear drives ... 8 4.8 Rope and chain requirements 8 4.9 Maintenanceandinstructions.. 10 ili No reproduction or networking permitted without license from IHS Not for Resale ISO 10972-3:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 10972-3 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 7, Tower cranes. Part 1:General Part 3:Tower cranes ISO2003-All rights reserved tionalOrganizationforStandardization Not fr Resale ISO 10972-3:2003(E) Introduction This part of ISO 10972 applies the principles given in ISO 10972-1 to tower cranes, and establishes minimum requirements of good practice for mechanisms in order to enhance safety. It is acknowledged that innovations aarizainghsred V Nreroductionneworkingemitedwithout licenefrmH Not for Resale Copyright intenatioal Organizatin for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 10972-3:2003(E) INTERNATIONAL STANDARD Cranes Reguirements for mechanisms - Part 3: Tower cranes 1 Scope This part of isO 10972 establishes requirements which apply specifically to the mechanisms and related components of tower cranes, in addition to the general requirements given in IsO 10972-1. These additional requirements concern a) the