ISO 20474-6:2017
(Main)Earth-moving machinery — Safety — Part 6: Requirements for dumpers
Earth-moving machinery — Safety — Part 6: Requirements for dumpers
ISO 20474-6:2017 gives the safety requirements specific to wheeled and crawler dumpers as defined in ISO 6165, including compact dumpers with seated or standing operator. It is not applicable to dumpers primarily designed for use on public roads. 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 20474-6:2017 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 20474-6:2017 is not applicable to machines manufactured before the date of its publication.
Engins de terrassement — Sécurité — Partie 6: Exigences applicables aux tombereaux
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 20474-6
Second edition
2017-07
Earth-moving machinery — Safety —
Part 6:
Requirements for dumpers
Engins de terrassement — Sécurité —
Partie 6: Exigences applicables aux tombereaux
Reference number
ISO 20474-6:2017(E)
©
ISO 2017
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ISO 20474-6:2017(E)
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ISO 20474-6:2017(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 Dump body . 3
4.2.1 Control device. 3
4.2.2 Body lowering . 3
4.2.3 Body-down indicator. 3
4.2.4 Body support device . 3
4.2.5 Sticking load . . 3
4.3 Retarder . 3
4.4 Roll-over protective structures (ROPS) . 3
4.5 Falling object protective structures (FOPS) . 3
4.5.1 General. 3
4.5.2 FOPS level . 4
4.5.3 Compact dumper . 4
4.6 Operator station . 4
4.6.1 Cab . 4
4.6.2 Operator’s seat . 4
4.6.3 Compact dumpers with a standing operator position. 4
4.7 Steering system . 5
4.7.1 General. 5
4.7.2 Steering controls for machines with swivelling seats . 5
4.7.3 Controls for steering and driving of machines with turnable upper structure . 5
5 Information for use . 5
Annex A (informative) Illustrations. 6
Bibliography . 8
© ISO 2017 – All rights reserved iii
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ISO 20474-6:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
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/d irectives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www. iso. org/p atents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o. org/i so/f oreword. 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 20474-6:2008), which has been
technically revised with the following changes:
— normative references have been updated;
— references to national and regional provisions in the withdrawn ISO/TS 20474-14 have been deleted;
— new safety requirements and protective measures have been added, including requirements for the
operator station.
It is intended to be used in conjunction with ISO 20474-1.
A list of all parts in the ISO 20474 series, published under the general title, Earth-moving machinery —
Safety, can be found on the ISO website.
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ISO 20474-6:2017(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or B
standards, the requirements of this type-C standard take precedence over the requirements of the
other standards for machines that have been designed and built according to the requirements of this
type-C standard.
ISO 20474 provides acceptable safety requirements for earth-moving machinery. This standard does
not necessarily provide requirements to meet all national and regional regulatory provisions, e.g. Japan
does not allow object handling with earth-moving machinery.
© ISO 2017 – All rights reserved v
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INTERNATIONAL STANDARD ISO 20474-6:2017(E)
Earth-moving machinery — Safety —
Part 6:
Requirements for dumpers
1 Scope
This document gives the safety requirements specific to wheeled and crawler dumpers as defined in
ISO 6165, including compact dumpers with seated or standing operator. It is not applicable to dumpers
primarily designed for use on public roads. 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.
This document 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 rele
...
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