ISO 21873-2:2019

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
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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.
...