ISO INTERNATIONAL STANDARD 20474-9 Secondedition 2017-07 Earth-moving machinery Safety - Part 9: Requirements for pipelayers Enginsdeterrassement-Sécurité- Partie 9: Exigences applicables aux tracteurs poseurs de canalisations Reference number IS020474-9:2017(E) iso Intemational Organization for Standardization @IS02017 =ZHEJIANG INSTOFSTANDARDIZATIONC15956617 ed without license from IHS IS020474-9:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,Published inSwitzerland 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 +4122 749 09 47 [email protected] www.iso.org Intematinaibr PrganizationforStandardization Licensee-ZHEJIANG INSTOF STANDARDIZARoISQ0,7 - All rights reserved networking permited without license from IHS NotforResale, 2017/9/1105:42:32 IS0 20474-9:2017(E) Contents Page Foreword ..iv Introduction.. 1 Scope.. 2 Normativereferences 3 Termsanddefinitions ..1 4 Safety requirements and-protective measures .2 4.1 General .2 4.2 Operatorstation .2 4.2.1 Cab.. 2 4.2.2 Operatorprotection 2 4.3 Stability and lifting equipment 2 4.3.1 General. .2 4.3.2 Lifting equipment. 3 4.4 Rear-mounted winch 3 4.5 Noise 3 4.5.1 Sound power level 3 4.5.2 Emission sound pressure level at operator's station .3 5 Informationforuse .3 5.1 Safety labels. .3 5.2 Operator's manual. 5.3 Machine marking .4 AnnexA (informative)Illustrations .5 Bibliography 8 iii See=ZHEJIANG INSTOFSTANDARDIZATION C15956617 vithoutlicense from IHS