ISO INTERNATIONAL STANDARD 11169 First edition 1993-05-15 .5. Machinery for forestry Wheeled special machines -- Vocabulary, performance test methods and criteria for brake systems Matériel forestier Machines spéciales a roues - Vocabulaire, methodes d'essai et criteres de performance des dispositifs de freinage Reference number ISO11169·1993(E) Provided by IHS under license with ISO I Organization for Standardizatio No reproduction or netvorking permited without license from IHS Not for Resale ISO 11169:1993(E) 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. 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. isO/TC 23, Tractors and machinery for agriculture and forestry, Sub- Committee SC 15, Machinery for forestry. Annex A of this International Standard is for information only. ISO1993 All rights reserved 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 per- mission inwritingfromthepublisher International Organization for Standardization Case Postale 56 . CH-1211 Geneve 20 · Switzerland Printed in Switzerland No reproduction or networking permitted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 11169:1993(E) Machinery for forestry Wheeled special machines -- Vocabulary, performance test methods and criteria for brake systems Scope 2.1.4.2 brake actuation system: All of the compo- nents between the control(s) and the brake(s) which This International Standard lays down the vocabulary connect them functionally. and specifies performance test methods and criteria 2.1.4.3 brake(s): Components which directly apply to enable uniform assessment of the service,sec- ondary and parking brake systems of wheeled spe- a force to oppose movement of the machine. Brakes cially designed forestry machines. may, for example, be of friction, electrical or fluid types. This International Standard applies to self-propelled, rubber-tyred special forestry machines defined in 2.1.4.4 retarder: Energy-absorption device normally isO 6814 [1] as skidders, forwarders and the various used to control machine speed while descending feller-buncher combinationmachines. gradients. 2 Definitions 2.2 common component: Component that per- formsafunctionintwoormorebrakesystems. For the purposes of this International Standard, the following definitions apply. 2.3 machine mass: Mass of the machine which in- cludes the heaviest combination of manufacturer 2.1 brake systems: All the components which approved equipment (i.e. winch, dozer, felling head, grapple, etc.) and components (ie. cab, protective combine together to stop and/or hold themachine. Such systems include the control(s), means of power structures, etc.), an operator of 75 kg and full fuel, transmission, the brake(s) and all parts connecting the lubricating, hydraulic and cooling systems. brake tothe wheel andtyre. The mass of forwarders includes the manufacturer's 2.1.1 service brake system: Primary system used rated payload. for stopping and holding the machine. 2.4 stopping distance, s: Distance travelled by the machine from the point on the test course at which 2.1.2 secondary brake system: System used for the machi