ISO INTERNATIONAL STANDARD 1726-2 First edition 2007-04-15 Road vehicles Mechanical couplings between tractors and semi-trailers Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers Vehicules routiers Liaisons mécaniques entre tracteurs et semi- remorques Partie 2: Interchangeabilite entre tracteurs avec accouplement bas et semi-remorquesdegrandvolume Reference number ISO 1726-2:2007(E) @ ISO 2007 HS under I without license from IHS ISO 1726-2:2007(E) PDFdisclaimer 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. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation 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 unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTEDDOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body 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 @ ISO 2007 - All rights reserved I without license from IHS ISO 1726-2:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeer 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. The main task of technical committees is to prepare International Standards. Draft International Standards 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 1726-2 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 15 Interchangeability of components of commercial vehicles and buses. IsO 1726 consists of the following parts, under the general title Road vehicles - Mechanical couplings between tractors and semi-trailers: Part 1: Interchangeability between tractors and semi-trailers for general cargo1) Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers 1)Revision of ISO 1726:2000. nal Organzainfor standardizallon'ghts reserved ili aadzao orB INTERNATIONAL STANDARD ISO 1726-2:2007(E) Road vehicles Mechanical couplings between tractors and semi-trailers Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers 1 Scope This part of isO 1726 specifies dimensions to ensure interchangeability between a low coupling height tractor vehicle and a coupled high-volume semi-trailer, the two together constituting a high-volume articulated vehicle. Itspecifiescertaininterchangeabilitydimensions,includingthoseoftheoptimisedgooseneckcontour,aswell as operating dimensions related to angle values. The specifications are primarily intended to permit semi-trailers to be coupled with two-axle tractors. However, three-axle tractors are not excluded, provided they are in compliance with the req