Building construction machinery and equipment — Mobile crushers — Part 2: Safety requirements and verification

This document establishes the safety requirements for mobile crushers, as defined in ISO 21873‑1, for crushing rocks or for reprocessing construction materials and capable of re-location between worksites. It applies to mobile crushers that are either — self-propelled (mounted on a chassis); — lorry (truck) mounted; — or semi-trailer mounted. It does not apply to — fixed (stationary) crushers; — large mining-type movable crushers. This document deals with significant hazards, hazardous situations and events relevant to mobile crushers when used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer. This document is not applicable to machines which are manufactured before the date of its publication.

Machines et matériels pour la construction des bâtiments — Concasseurs mobiles — Partie 2: Exigences de sécurité et vérification

General Information

Status
Published
Publication Date
06-May-2019
Current Stage
9060 - Close of review
Start Date
02-Dec-2029
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ISO 21873-2:2019 - Building construction machinery and equipment -- Mobile crushers
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INTERNATIONAL ISO
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 bâtiments —
Concasseurs mobiles —
Partie 2: Exigences de sécurité et vérification
Reference number
©
ISO 2019
© 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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
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 Moving parts . 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 . 6
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) . 7
4.9.1 Feed opening . 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.10
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
4.15.2 Hot parts .12
4.15.3 Moving parts .12
4.15.4 Guards .12
4.15.5 Isolation of energy sources .13
4.15.6 Sharp edges and acute angles .13
4.15.7 Exhaust gases .13
4.16 Lifting and tie-down .13
4.16.1 Lifting for transport .13
4.16.2 Tie-down for transport . .13
4.16.3 Lifting and tie-down for maintenance .13
4.17 Electromagnetic compatibility (EMC).13
4.18 Electrical and electronic systems .13
4.18.1 General.13
4.18.2 Degrees of protection.14
4.18.3 Electrical connections .14
4.18.4 Over-current protective devices .14
4.18.5 Batteries .14
4.18.6 Battery disconnection .14
4.18.7 Electrical connectors for auxiliary starting aids.15
4.18.8 Electric sockets for lighting .15
4.19 Pressurized systems .15
4.19.1 General.
...


INTERNATIONAL ISO
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 bâtiments —
Concasseurs mobiles —
Partie 2: Exigences de sécurité et vérification
Reference number
©
ISO 2019
© 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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
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 Moving parts . 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 . 6
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) . 7
4.9.1 Feed opening . 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.10
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
4.15.2 Hot parts .12
4.15.3 Moving parts .12
4.15.4 Guards .12
4.15.5 Isolation of energy sources .13
4.15.6 Sharp edges and acute angles .13
4.15.7 Exhaust gases .13
4.16 Lifting and tie-down .13
4.16.1 Lifting for transport .13
4.16.2 Tie-down for transport . .13
4.16.3 Lifting and tie-down for maintenance .13
4.17 Electromagnetic compatibility (EMC).13
4.18 Electrical and electronic systems .13
4.18.1 General.13
4.18.2 Degrees of protection.14
4.18.3 Electrical connections .14
4.18.4 Over-current protective devices .14
4.18.5 Batteries .14
4.18.6 Battery disconnection .14
4.18.7 Electrical connectors for auxiliary starting aids.15
4.18.8 Electric sockets for lighting .15
4.19 Pressurized systems .15
4.19.1 General.
...

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