ISO INTERNATIONAL STANDARD 20474-8 Second edition 2017-07 Earth-moving machinery Safety - Part 8: Requirements for graders Engins de terrassement- Sécurité- Partie 8: Exigences applicables aux niveleuses Reference number ISO 20474-8:2017(E) International Organization for Standardization @ IS0 2017 ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS underI ted without license from IHS IS0 20474-8:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017,Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. IsOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org PrganizationforStandardization icensee-ZHEJIANG INST.OF STANDARDIZRoISQ s1.7 - All rights reserved etworking permitted without license from IHS IS0 20474-8:2017(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. 2 Normative references ..1 3 Terms and definitions ..1 4 Safety requirements and protective measures .2 4.1 General .2 4.2 Operator station. 4.2.1 Operator's seat. 2 4.2.2 Rear windows. .2 4.3 Fenders 2 4.4 Steering system .2 4.4.1 General. .2 4.4.2 Controls 4.4.3 Steering performance test .2 4.4.4 Safety requirements for travelling mode .2 5 Information for use 12 Annex A (informative) Illustrations 4 Bibliography 5 iii ee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under lic d without license from IHS Not for Resale, 2017/9/11 05:41:07