ISO 20474-7:2017

Earth-moving machinery — Safety — Part 7: Requirements for scrapers

ISO 20474-7:2017 gives the safety requirements specific to wheeled scrapers and crawler scrapers, excepting towed scrapers, as defined in ISO 6165. It is intended to be used in conjunction with ISO 20474-1, which specifies general safety requirements common to two or more earth-moving machine families. The specific requirements given in this document take precedence over the general requirements of ISO 20474‑1. ISO 20474-7:2017 gives the safety requirements specific to wheeled scrapers and crawler scrapers, deals with all significant hazards, hazardous situations and events relevant to the earth-moving machinery within its scope (see ISO 20474-1:2017, Annex A) when used as intended or under conditions of misuse reasonably foreseeable by the manufacturer. It specifies the appropriate technical measures for eliminating or reducing risks arising from relevant hazards, hazardous situations or events during commissioning, operation and maintenance. ISO 20474-7:2017 gives the safety requirements specific to wheeled scrapers and crawler scrapers, is not applicable to machines manufactured before the date of its publication.

Engins de terrassement — Sécurité — Partie 7: Exigences applicables aux décapeuses

General Information

• Status: Published
• Publication Date: 06-Jul-2017
• ICS: 53.100 - Earth-moving machinery
• Technical Committee: ISO/TC 127/SC 2 - Safety, ergonomics and general requirements
• Drafting Committee: ISO/TC 127/SC 2 - Safety, ergonomics and general requirements
• Parallel Committee: ISO/TC 23/SC 15 - Machinery for forestry
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 06-Dec-2022

Relations

• Revises: ISO 20474-7:2008 - Earth-moving machinery — Safety — Part 7: Requirements for scrapers
• Effective Date: 03-Nov-2011
• Consolidated By: ISO 10685-2:2016 - Ophthalmic optics — Spectacle frames and sunglasses electronic catalogue and identification — Part 2: Commercial information
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20474-7
Second edition
2017-07
Earth-moving machinery — Safety —
Part 7:
Requirements for scrapers
Engins de terrassement — Sécurité —
Partie 7: Exigences applicables aux décapeuses
Reference number
ISO 20474-7:2017(E)
©
ISO 2017

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ISO 20474-7:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

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ISO 20474-7:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Safety requirements and protective measures . 2
4.1 General . 2
4.2 Operator’s seat . 2
4.3 Retarder . 2
4.4 Articulated frame lock . 2
4.5 Towing device . 2
4.6 Noise . 2
4.6.1 Sound power level . 2
4.6.2 Emission sound pressure level at operator’s station . 2
4.7 Access to engine compartment . 3
5 Information for use . 3
Annex A (informative) Illustrations. 4
Bibliography . 6
© ISO 2017 – All rights reserved iii

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ISO 20474-7:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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URL: w w w . i s o .org/ iso/ foreword .html
This document was prepared by Technical Committee ISO/TC 127, Earth-moving machinery,
Subcommittee SC 2, Safety, ergonomics and general requirements.
This second edition cancels and replaces the first edition (ISO 20474-7:2008), which has been technically
revised with the following changes:
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