ISO-2328-2007.pdf

Reference number ISO 2328:2007(E) © ISO 2007 INTERNATIONAL STANDARD ISO 2328 Third edition 2007-05-15 Fork-lift trucks Hook-on type fork arms and fork arm carriages Mounting dimensions Chariots élévateurs à fourche Bras de fourche à tenons et tabliers porte-fourches Dimensions de montage ISO 2328:2007(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. 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. © ISO 2007 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 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 copyrightiso.org Web www.iso.org Published in Switzerland ii © ISO 2007 All rights reserved ISO 2328:2007(E) © ISO 2007 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and 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/IEC 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 2328 was prepared by Technical Committee ISO/TC 110, Industrial trucks, Subcommittee SC 2, Safety of powered industrial trucks. This third edition cancels and replaces the second edition (ISO 2328:1993), which has been technically revised. -,-,- INTERNATIONAL STANDARD ISO 2328:2007(E) © ISO 2007 All rights reserved 1 Fork-lift trucks Hook-on type fork arms and fork arm carriages Mounting dimensions 1 Scope This International Standard specifies the dimensions of, and additional requirements for, fork carriers and hook-on type fork arms, to permit the interchangeability of these fork arms and/or other attachments, relative to the truck-rated capacity and fork arm type, on fork-lift trucks up to and including 10 999 kg. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2331:1974, Fork lift trucks Hook-on type fork arms Vocabulary ISO 3691:1980, Powered industrial trucks Safety code1) 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 2331 and ISO 3691 and the following apply. 4 Requirements 4.1 Dimensions The mounting dimensions of the fork arms and fork carrier for type A (short drop) and type B (long drop) fork arms (the position of the bottom hook determining the type of fork) shall be in accordance with Figures 1, 2 and 3 and Tables 1 and 2. Fork arm location slots to the dimensions specified in Table 2 shall be provided at a suitable spacing on the fork arm carriage. In order to locate attachments, one slot shall be situated on the top edge of the carrier plate centreline. However, when an offset lower slot is provided to avoid unintentional disengagement, then the top central slot shall be offset by dimension w (see Figure 1); this slot shall be 3 mm deeper, to facilitate the attachment and fork arm mounting. NOTE The drawings are in first and third angle projections. 1) Under revision. -,-,- ISO 2328:2007(E) 2 © ISO 2007 All rights reserved 4.2 Stops Stops shall be provided in order to prevent lateral disengagement of the fork arms from the extremities of the fork carrier. If these stops are not permanent, i.e. welded, then the instruction handbook shall contain warnings that the truck is not to be used if the stops are not correctly in place. 4.3 Slot on the lower carriage If a fork arm removal/mounting slot is provided in the lower edge of a carriage, it shall be positioned as shown in Figure 3, that shown in the detailed view X being optional. If the positioning of the slots in the upper and lower fork carrier could enable the fork arm or attachment to become inadvertently disengaged from the carrier, then other means shall be provided to prevent this from occurring. Where the means of preventing unintentional fork disengagement is by an offset lower slot, then the instruction handbook shall contain the following warning notice: WARNING If the fork/locking pin is not fully engaged, the fork could become unintentionally disengaged. Key 1 upper hook 2 fork carrier 3 lower hook 4 position on lower slot in relation to carriage centre line a Carriage centre line. b Third angle projection. c First angle projection. NOTE For the values of the dimensions, see Tables 1 and 2. ISO 2328:2007(E) © ISO 2007 All rights reserved 3 Figure 1 Hook-on type fork arm mounted on fork carrier Key A detail of upper hook B detail of lower hook a Upper and lower fork hook may be rounded or chamfered for clearance (see Table 1). b Maximum radius 1,0 mm. NOTE For the values of the dimensions, see Table 1. Figure 2 Fork arm hook detail ISO 2328:2007(E) 4 © ISO 2007 All rights reserved Key 1 slot on right side when looking at front face of the fork carrier 2 bottom of fork (ground level) 3 lower hook of fork arm or attachment lug 4 hook-on type fork arm carrier 5 a optional front slope for ease of attachment mounting 5 b optional front square cutout for ease of attachment mounting a Carriage centre line. b Maximum radius 5 mm. NOTE For the values of the dimensions, see Tables 1 and 2. Figure 3 Hook-on type fork arm carrier ISO 2328:2007(E) © ISO 2007 All rights reserved 5 Table 1 Mounting dimensions of hook-on type fork arms Dimensions in millimetres Truck rated capacity at rated distance of centre load a c1 h1 h2 m1 m2 k1 Lower hook v Class kg/mm Fork arm type ref. 1,0 0 + ± 3,0 tol. max. max. min. ± 1,5 Up to 999/ A 76 394 1 400 and 600 B 114 16,5 432 306 28 26 14 90 1 000 to 2 500/ A 76 470 2 500 and 600 B 152 16,5 546 382 1,0 0 + 31 29 14 90 2 501 to 4 999/ A 76 568 3 500 and 600 B 203 22 695 477 40 38 17 115 5 000 to 8 000/ A 127 743 4 600 B 254 26 870 598 47 45 20 139 8 001 to 10 999/ A 127 830 5 600 B 257 35 960 680 1,5 0 + 65 63 26 164 Table 2 Mounting dimensions of fork carriers Dimensions in millimetres Truck rated capacity at rated distance of centre load a b c2 e h3 k2 q a Lower slot u Slot offset from centre- line w p Class kg/mm Fork arm type ref. ref. 0 1,0 ± 0,8 tol. 0 1,5 min. ± 2,0 ± 1,5 max. Up to 999/ A 76 1 400 and 600 b B 114 331 16 16 305 13 8 95 13 160 1 000 to 2 500/ A 76 2 500 and 600 c B 152 407 16 16 381 0 1,0 13 8 95 13 160 2 501 to 4 999/ A 76 3 500 and 600 B 203 508 21,5 19 476 16 10 120 20 160 5 000 to 8 000/ A 127 4 600 B 254 635 25,5 19 597 19 12 145 27,5 160 8 001 to 10 999/ A 127 5 600 B 257 728 34 25 678 0 1,5 25 16 171 30 160 a Centre slot shall be 3 mm deeper to facilitate attachment and fork arm mounting. b 600 mm is used in the USA. c 600 mm is used in the USA, Asia and Australia. -,-,- ISO 2328:2007(E) ICS 53.060 Price based on 5 pages © ISO 2007 All rights reserved