National foreword

This British Standard is the UK implementation of ISO 20474‑1:2017.

The UK participation in its preparation was entrusted to Technical Committee B/513/1, Earth moving machinery (International).

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.

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/directives).

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/patents).

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: www.iso.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 20474‑1:2008), 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 the normative annexes, requirements for elevating operator’s stations, for lifting devices used in object handling and for earth-moving machinery used underground in non-explosive atmospheres.

It is intended to be used in conjunction with the other parts of ISO 20474.

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.

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.

1 Scope

This document specifies the general safety requirements for earth-moving machinery as defined in ISO 6165, each of these requirements being common to two or more earth-moving machine families. It is also applicable to machine attachments, and to derivative machinery designed primarily for equipment used to excavate, load, transport, drill, spread, compact or trench earth, rock, and other materials.

It is intended to be used in conjunction with the other parts of ISO 20474, which give the provisions that are specific to particular machine families. Those specific requirements take precedence over the requirements of this document for the machines concerned. For multipurpose machinery, all of those parts of ISO 20474 whose requirements cover the functions and applications of such machines are applicable.

EXAMPLE For a compact loader also used as a trencher, the relevant requirements of ISO 20474‑1, ISO 20474‑3 and ISO 20474‑10 are applicable.

This document deals with all significant hazards, hazardous situations and events relevant to the earth-moving machinery within its scope (see 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.

Specific requirements related to autonomous machines are covered in ISO 17757.

This document is not applicable to machines manufactured before the date of its publication.

2 Normative references

3 Terms and definitions

4 Safety requirements and protective measures

4.1 General

4.2 Access systems

4.3 Operator's station

4.4 Seats

4.5 Operator's controls and indicators

4.6 Steering systems

4.7 Brake systems

4.8 Visibility

4.9 Warning devices and safety signs

4.10 Tyres and rims

4.11 Stability

4.12 Object handling

4.13 Noise

4.14 Protective measures and devices

4.15 Retrieval, transportation, lifting and towing

4.16 Electrical and electronic systems

4.17 Pressurized systems

4.18 Fuel tanks, diesel emission fluid tanks and hydraulic oil tanks

4.19 Fire protection

4.20 Attachments

4.21 Maintenance

4.22 Underground operation in non-explosive atmosphere

4.23 Rear-mounted winch

4.24 Speed limit for non-riding machines

5 Verification of safety requirements and protective measures

6 Information for use

6.1 Safety labels

6.2 Operator's manual

6.3 Machine marking

Bibliography

BS ISO 20474-1:2017

Earth-moving machinery. Safety - General requirements

Published:

31 Jul 2017

Withdrawn:

16 Feb 2022