ISO INTERNATIONAL STANDARD 21873-2 Second edition 2019-05 Building construction machinery and equipment Mobile crushers - Part 2: Safety requirements and verification Machines et matériels pour la construction des batiments - Concasseurs mobiles - Partie 2: Exigences de sécurité et vérification Reference number ISO 21873-2:2019(E) ISO @ IS0 2019 IS0 21873-2:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 21873-2:2019(E) Contents Page Foreword ..V Introduction. ..vii 1 Scope 2 Normative references 3 Terms and definitions .3 4 Safety requirements and/or protective/risk reduction measures .3 4.1 General .3 4.2 Access .3 4.3 Operator's station. .3 4.3.1 General. .3 4.3.2 Movingparts 3 4.3.3 Engine exhaust. .3 4.3.4 Sharp edges. 3 4.3.5 Pipes and hoses. .3 4.3.6 Construction .3 4.4 Lighting 4 4.5 Operator's controls and indicators ..4 4.5.1 General. .4 4.5.2 Emergency stop ..4 4.5.3 Starting systems. .5 4.5.4 Inadvertent activation .5 4.5.5 Uncontrolled motion 5 4.5.6 Remote control. .5 4.5.7 Control panels, instrument and symbols .5 4.6 Steering system .6 4.7 Brake systems. .6 4.7.1 General. .6 4.7.2 Parking brakes 4.8 Feed hopper and feed device .6 4.8.1 Guarding requirements ..6 4.8.2 Safety information for the operator's manual .6 4.9 Crushing device (crusher) 1 4.9.1 Feedopening .7 4.9.2 Jaw-type crushing device (jaw-type crusher) 7 4.9.3 Horizontal shaft impact (HSI) and vertical shaft impact (VSI) crushing device....8 4.9.4 Cone-type crushing device (cone-type crusher) 9 4.9.5 Roll-type crushing device. .9 4.10 By-pass device. .10 4.10.1 General 4.10.2 Inadvertent movement. ..10 4.10.3 Prevention of falling material 10 4.10.4 Hazard of trapping or entanglement ..10 4.11 Magnetic separator. ..11 4.11.1 Magnetic hazard ..11 4.11.2 Magnet discharge .11 4.12 Warning devices. .11 4.13 Stability. .11 4.14 Noise emission measurement. .11 4.14.1 Noise reduction at source .11 4.14.2 Sound power level .11 4.14.3 Sound pressure level ..12 4.15 Protective measures and devices ..12 4.15.1 General. ..12 @ IS0 2019 - All rights reserved iii