ISO-11530-1993.pdf
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1、INTERNATIONAL STANDARD IS0 11530 First edition 1993-04-I 5 Road vehicles - Hydraulic jacks - Specifications Vbhicules routiers - Cries hydrauliques - Spkifications Reference number IS0 11530:1993(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licen
2、see=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 21:06:57 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11530:1993(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 memb
3、er bodies). The work of preparing International Standards is normally carried out through IS0 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, government
4、al and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closety with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the memb
5、er bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 11530 was prepared by Technical Committee lSO/TC 22, Road vehicles, Sub-Committee SC 14, Exterior firtings. 0 IS0 1993 AH rights reserved.
6、 NO part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and miuofilm, withixt per- mission in wriiing from the publisher. International Organization for Standardization Case Postale 56 l CH-1211 Genbve 20 l Switzerland
7、Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 21:06:57 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDAR
8、D IS0 11530:1993(E) Road vehicles - Hydraulic jacks - Specifications 1 Scope This International Standard specifies design and safety requirements, and test methods for hydraulic jacks for road vehicles, used for changing wheels and putting on chains. NOTE 1 Although these jacks are primarily designe
9、d for use on vehicles with a maximum total calculated mass over 3,5. t, they may still be used on smaller vehicles, e.g. pas- senger cars which have jacking points specifically designed for the use of such jacks. 2 General requirements 2.1 On delivery, the surfaces shall be protected against corrosi
10、on, and all movable parts shall be lubri- cated, if necessary. 2.2 Jacks shall be equipped with a suitable means for refilling with hydraulic fluid. 2.3 The operating force on the handle shall not be greater than 400 N, measured at the end of the han- dle provided when being operated at the rated lo
11、ad. 2.4 The ram or cylinder shall be capable of being lowered by a force less than 400 N when the lowering system is operated. 3 Safety requirements 3.1 The head of the jack shall have a rough surface or be designed in such a way as to counteract any tendency of the load to slip off. The projected a
12、rea of a flat head shall be at least 500 mm*, and minimum dimensions in each direction shall normally be 25 mm. Jacks having a mass above 10 kg shall be equipped with a handle to facilitate transportation. 3.2 Jacks shall be equipped with an over-travel de- vice. Jacks fitted with a height adaptatio
13、n spindle shall be provided with a spindle travel stop. 3.3 Jacks shall be equipped with a pressure relief valve adjusted to a pressure corresponding to the rated load, with a tolerance up to + 10 %. Some means shall be provided to ensure that this valve is tamper-proof. 3.4 Jacks shall be designed
14、in such a way that an operator can regulate the lowering speed or stop the lowering at any load up to the rated load. 3.5 Jacks shall have different operating systems for raising and lowering. 3.6 The connection between the operating handle and the jack shall be designed so that the handle cannot sl
15、ip during operation. Similarly, multiple com- ponent handles shall be protected against uninten- tional disassembly. 4 Testing 4.1 Normal operation conditions 4.1.1 Temperature conditioning Store jacks at (50 f 5) “C for 24 h, then at (- 20 f 2) “C for 24 h, each in the most unfavourable position, a
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