ISO INTERNATIONAL STANDARD 20474-4 Second edition 2017-07 Earth-moving machinery Safety - Part 4: Requirements for backhoe loaders Engins de terrassement- Sécurité- Partie 4: Exigences applicables aux chargeuses-pelleteuses Reference number IS0 20474-4:2017(E) International Organization for Standardization @ IS0 2017 ZHEJIANG INSTOFSTANDARDIZATION C15956617 vided by IHS under I Not for Resale, 2017/9/8 09:00:20 ted without license from IHS IS020474-4:2017(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 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 Internatinair PrganizationforStandardization icensee-ZHEJIANG INSTOF STANDARDIZAoISQ07 -All rights reserved Not for Resale, 2017/9/8 09:00:20 etworking permitted without license from IHS IS0 20474-4:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions .2 4 Safety requirements and protective measures .3 4.1 General .3 4.2 Operator's station. .3 4.2.1 Minimum space envelope .3 4.2.2 Operator's controls .3 4.2.3 Operator's seat. 3 4.3 Warning devices. .3 4.4 Stability. 3 4.4.1 General. .3 4.4.2 Loader portion 4 4.4.3 Backhoe portion .6 4.5 Travelling and transportation ..7 5 Information for use .1 Annex A (normative) Test method for backhoe loader lift capacity at the backhoe portion AnnexB (informative) Illustrations. ..11 Bibliography .13 iii ee=ZHEJIANG INSTOFSTANDARDIZATION C15956617 vided by IHS underI vithoutlicense from IHS Not for Resale, 2017/9/8 09:00:20