SIST EN 474-7:2022

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

This document, together with EN 474 1:2022, deals with all significant hazards, hazardous situations and events relevant to scrapers as defined in 3.1, except towed scrapers, when used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A), associated with the whole life time of the machine as described in EN ISO 12100:2010, 5.4.
This document does not provide performance requirements for safety related functions of control system(s).
The following significant and relevant hazards are not covered in this document:
—   Transmission of power between self-propelled machinery (or tractor) and recipient machinery;
—   Laser;
—   Lightning.
The requirements of this document are complementary to the common requirements formulated in EN 474 1:2022. This document does not repeat the requirements of EN 474 1:2022 but supplements or modifies the requirements for scrapers.
This document is not applicable to scrapers which are manufactured before the date of publication of this document by CEN.

Erdbaumaschinen - Sicherheit - Teil 7: Anforderungen für Scraper

Dieses Dokument behandelt zusammen mit EN 474 1:2022 alle signifikanten Gefährdungen, Gefährdungssituationen und ‑ereignisse von Scrapern, wie sie in 3.1 definiert sind, mit Ausnahme von gezogenen Scrapern, wenn diese Maschinen bestimmungsgemäß verwendet werden sowie unter den vernünftigerweise vom Hersteller vorhersehbaren Fehlanwendungen (siehe Anhang A) für die gesamte Lebensdauer der Maschine wie in EN ISO 12100:2010, 5.4, beschrieben betrieben werden.
Dieses Dokument enthält keine Leistungsanforderungen an Sicherheitsfunktionen von Steuerungssystemen.
Die folgenden signifikanten und relevanten Gefährdungen werden in diesem Dokument nicht behandelt:
—   Kraftübertragung zwischen einer selbstfahrenden Maschine (oder einer Zugmaschine) und einer angetriebenen Maschine;
—   Laserstrahlung;
—   Blitzschlag.
Die Anforderungen dieses Dokuments gelten ergänzend zu den allgemeinen Anforderungen in EN 474 1:2022. Dieses Dokument wiederholt nicht die Anforderungen aus EN 474 1:2022, sondern ergänzt oder ändert diese für den Einsatz von Scrapern.
Dieses Dokument ist nicht anwendbar für Scraper, die vor der Veröffentlichung dieses Dokuments durch CEN hergestellt wurden.

Engins de terrassement - Sécurité - Partie 7 : Prescriptions applicables aux décapeuses

Le présent document, avec l’EN 474-1:2022, traite de tous les phénomènes, situations et événements dangereux significatifs relatifs aux décapeuses, telles que définies en 3.1, à l’exception des décapeuses tractées, lorsqu'elles sont utilisées normalement et dans les conditions prévues, mais en tenant également compte des mauvais usages raisonnablement prévisibles (voir Annexe A), associés à toute la durée de vie de l'engin, tel que décrit dans l'EN ISO 12100:2010, 5.4.
Le présent document ne spécifie aucune prescription de performance relative aux fonctions de sécurité du (des) système(s) de commande.
Les phénomènes dangereux significatifs et pertinents suivants ne sont pas couverts par le présent document :
—   transmission de puissance entre la machine automotrice (ou le tracteur) et la machine réceptrice ;
—   laser ;
—   foudre.
Les prescriptions figurant dans le présent document viennent en complément des prescriptions communes présentées dans l’EN 474-1:2022. Le présent document ne répète pas les prescriptions de l’EN 474-1:2022 mais complète ou modifie les prescriptions pour les décapeuses.
Le présent document n'est pas applicable aux décapeuses fabriquées avant la date de publication du présent document par le CEN.

Stroji za zemeljska dela - Varnost - 7. del: Zahteve za grabilnike (skreperje)

Ta del standarda EN 474 obravnava vsa večja tveganja, nevarne situacije in nevarne dogodke v zvezi z grabilniki (skreperji) s kolesi in gosenicami (razen vlečenih grabilnikov (skreperjev)) iz standarda EN ISO 6165:2012, kadar se uporabljajo v skladu s predvidenim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec (glej točko 4).
Zahteve iz tega dela dopolnjujejo splošne zahteve iz standarda
prEN 474-1:2017.
Ta del ne navaja ponovno zahtev iz standarda prEN 474-1:2017, temveč dodaja ali nadomešča zahteve za uporabo grabilnikov (skreperjev).
Ta del določa ustrezne tehnične ukrepe za odpravo ali zmanjšanje večjih tveganj, nevarnih situacij in nevarnih dogodkov med usposabljanjem za zagon, obratovanjem in vzdrževanjem grabilnikov (skreperjev).
Ta evropski standard se ne uporablja za grabilnike (skreperje), izdelane pred datumom izdaje tega evropskega standarda s strani Evropskega odbora za standardizacijo (CEN). Prekucniki, upravljani s tal, ne spadajo na področje uporabe tega evropskega standarda.
Ta evropski standard se ne uporablja za prekucnike, izdelane pred datumom izdaje tega evropskega standarda s strani Evropskega odbora za standardizacijo (CEN).

General Information

• Status: Published
• Public Enquiry End Date: 21-Jun-2017
• Publication Date: 11-Apr-2022
• ICS: 53.100 - Earth-moving machinery
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Apr-2022
• Due Date: 11-Jun-2022
• Completion Date: 12-Apr-2022
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN 474-7:2022 - Earth-moving machinery - Safety - Part 7: Requirements for scrapers

Relations

• Replaces: SIST EN 474-7:2007+A1:2009 - Earth-moving machinery - Safety - Part 7: Requirements for scrapers
• Effective Date: 06-Apr-2022
• Revised: SIST EN 474-7:2007+A1:2009 - Earth-moving machinery - Safety - Part 7: Requirements for scrapers
• Effective Date: 11-Feb-2015

Overview

EN 474-7:2022 - published by CEN - is the part of the European series "Earth‑moving machinery - Safety" that specifies machine-specific safety requirements for self‑propelled scrapers (excluding towed scrapers). Used together with EN 474‑1:2022 (General requirements), it addresses significant hazards across the whole life‑cycle of scrapers as defined by EN ISO 12100. The standard updates and replaces earlier editions and was approved in 2022.

Key topics and technical requirements

• Scope and exclusions
  • Applies to self‑propelled scrapers (not towed scrapers) manufactured after the publication date.
  • Does not provide performance requirements for safety‑related control system functions.
  • Excluded hazards: transmission of power between self‑propelled and recipient machinery, laser, and lightning.
• Operator environment
  • Operator’s seat must meet input spectral class EM2 per EN ISO 7096:2020 (vibration control).
  • Controls and indicators must comply with EN 474‑1 with scraper‑specific additions.
• Speed and braking
  • Scrapers with payload > 20 t or max travel speed > 40 km/h must be equipped with a retarder and meet performance tests in ISO 10268:1993.
• Protective measures
  • Protective devices and guarding follow EN 474‑1 with specified modifications for scrapers.
  • Special rules for towing/assistance attachments: push/pull mechanisms used only for mutual loading are not classed as towing devices.
• Verification and testing
  • Clause 5 provides a verification framework: calculation, visual verification, measurement, functional tests, and reference (special) verification.
• Information for use
  • Operator’s manual must include scraper‑specific instructions such as push‑blade operation and elevator/auger use and maintenance.
• Hazard listing
  • Annex A lists significant hazards typical for scrapers: mechanical (crushing, cutting, entanglement), vibration, noise, ergonomic, thermal, electrical, material/substance hazards, instability, slipping/falling.

Practical applications and users

• Who uses it
  • Scraper manufacturers and designers (for compliant product design).
  • Health & safety regulators, conformity assessors and market surveillance bodies.
  • Fleet owners, operators, and service/maintenance providers (to ensure safe operation, documentation and maintenance).
• When to use
  • During design and risk assessment of new self‑propelled scrapers.
  • For conformity assessment, CE marking support, operator training materials, and maintenance procedures.
  • When specifying equipment procurement to ensure compliance with EU machinery safety requirements.

Related standards

• EN 474‑1:2022 - General requirements for earth‑moving machinery (mandatory companion document)
• EN ISO 7096:2020 - Operator seat vibration (EM2 class)
• ISO 10268:1993 - Retarder performance tests
• EN ISO 12100:2010 - General principles for design, risk assessment and reduction
• ISO 7133:2013 - Scraper terminology (referenced for terminology)

Keywords: EN 474‑7:2022, scrapers safety, earth‑moving machinery, CEN, retarder requirement, operator seat EM2, verification methods, EN 474‑1:2022.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2022
Nadomešča:
SIST EN 474-7:2007+A1:2009
Stroji za zemeljska dela - Varnost - 7. del: Zahteve za grabilnike (skreperje)
Earth-moving machinery - Safety - Part 7: Requirements for scrapers
Erdbaumaschinen - Sicherheit - Teil 7: Anforderungen für Scraper
Engins de terrassement - Sécurité - Partie 7 : Prescriptions applicables aux décapeuses
Ta slovenski standard je istoveten z: EN 474-7:2022
ICS:
53.100 Stroji za zemeljska dela Earth-moving machinery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 474-7
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 53.100 Supersedes EN 474-7:2006+A1:2009
English Version
Earth-moving machinery - Safety - Part 7: Requirements
for scrapers
Engins de terrassement - Sécurité - Partie 7 : Erdbaumaschinen - Sicherheit - Teil 7: Anforderungen
Prescriptions applicables aux décapeuses für Scraper
This European Standard was approved by CEN on 14 February 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 474-7:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Safety requirements and/or protective/risk reduction measures . 7
4.1 General . 7
4.2 Operator’s seat . 7
4.3 Operator’s Controls and Indicators . 7
4.4 Protective measures and devices . 8
4.5 Recovery, towing away for recovery purposes (TARP), tying-down, lifting and
transporting . 8
5 Verification of the safety requirements and/or protective/risk reduction measures . 8
6 Information for use . 9
6.1 General . 9
6.2 Operator's manual . 9
Annex A (informative) List of significant hazards . 10
Annex B (informative) Illustrations . 14
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC machinery, and amending
Directive 95/16/EC (recast) [2006 L157] aimed to be covered. 17
Bibliography . 23

European foreword
This document (EN 474-7:2022) has been prepared by Technical Committee CEN/TC 151 “Construction
equipment and building material machines - Safety”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2022, and conflicting national standards shall
be withdrawn at the latest by March 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 474-7:2006+A1:2009.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
For bibliographic references, see EN 474-1:2022.
EN 474 “Earth-moving machinery — Safety” comprises the following parts:
— Part 1: General requirements
— Part 2: Requirements for tractor-dozers
— Part 3: Requirements for loaders
— Part 4: Requirements for backhoe-loaders
— Part 5: Requirements for hydraulic excavators
— Part 6: Requirements for dumpers
— Part 7: Requirements for scrapers
— Part 8: Requirements for graders
— Part 9: Requirements for pipelayers
— Part 10: Requirements for trenchers
— Part 11: Requirements for earth and landfill compactors
— Part 12: Requirements for cable excavators
— Part 13: Requirements for rollers
This document is intended for use in combination with part 1 of the series.
The main differences between this document and EN 474-7:2006+A1:2009 are as follows:
a) the normative reference (Clause 2) (updated);
b) scrapers greater than 20 tonnes payload capacity or scrapers with travel speed greater than 40 km/h
shall be equipped with a retarder system (4.3) (added);
c) verification methods table (Clause 5) (added);
d) safety related functions of control systems (excluded);
e) list of significant hazards (Annex A) (updated);
f) Annex ZA (updated).
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
This document is a type-C standard as stated in EN ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
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 type-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.
1 Scope
This document, together with EN 474-1:2022, deals with all significant hazards, hazardous situations and
events relevant to scrapers as defined in 3.1, except towed scrapers, when used as intended and under
the conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A), associated
with the whole life time of the machine as described in EN ISO 12100:2010, 5.4.
This document does not provide performance requirements for safety related functions of control
system(s).
The following significant and relevant hazards are not covered in this document:
— Transmission of power between self-propelled machinery (or tractor) and recipient machinery;
— Laser;
— Lightning.
The requirements of this document are complementary to the common requirements formulated in
EN 474-1:2022. This document does not repeat the requirements of EN 474-1:2022 but supplements or
modifies the requirements for scrapers.
This document is not applicable to scrapers which are manufactured before the date of publication of this
document by CEN.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 474-1:2022, Earth-moving machinery — Safety — Part 1: General requirements
EN ISO 7096:2020, Earth-moving machinery — Laboratory evaluation of operator seat vibration
(ISO 7096:2020)
ISO 10268:1993, Earth-moving machinery — Retarders for dumpers and tractor-scrapers — Performance
tests
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
3 Terms and definitions
For the purposes of this document, the terms and definitions for EN 474-1:2022, EN ISO 12100:2010 and
the following apply.
NOTE 1 Terminology for scrapers is specified in ISO 7133:2013 and illustrated in Annex B of this document.
NOTE 2 Crawler scrapers are not covered in ISO 7133:2013 but are illustrated in Annex B of this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
scraper
self-propelled or towed crawler or wheeled machine, which has a bowl with a cutting edge positioned
between the axles and which cuts, loads, transports, discharges and spreads material through a forward
motion
[SOURCE: EN ISO 6165:2012]
3.2
towed scraper
scraper (3.1) that is not self-propelled but which is propelled instead by a towing machine on the
operator's station
[SOURCE: EN ISO 6165:2012]
3.3
retarder
energy absorption device normally used to control machne speed while descending grades
[SOURCE: ISO 10268:1993]
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Context
Scrapers shall comply with the safety requirements and/or protective/risk reduction measures of this
clause. In addition, the machines shall be designed according to the principles of EN ISO 12100:2010 for
relevant but not significant hazards which are not dealt with by this document.
4.1.2 Specific relation to EN 474-1
Scrapers shall comply with the requirements of EN 474-1:2022, as far as not modified or replaced by the
requirements of this part.
There are general requirements specified in EN 474-1:2022 that are not applicable because the risk
assessment has shown that for scrapers the corresponding hazard does not exist. For scrapers 4.4.2,
4.5.10, 4.6.3, 4.7.3, 4.12, 4.23, 4.24, Annex B, Annex C and Annex D in EN 474-1:2022, are not applicable.
4.2 Operator’s seat
EN 474-1:2022, 4.4.1 shall apply with the addition that the seat shall meet the input spectral class EM2
according to EN ISO 7096:2020.
4.3 Operator’s Controls and Indicators
4.3.1 General
EN 474-1:2022, 4.5 shall apply with the addition stated in 4.3.2 below.
4.3.2 Retarder
Scrapers greater than 20 t payload capacity or scrapers with travel speed greater than 40 km/h shall be
equipped with a retarder and meet the performance test of ISO 10268:1993.
4.4 Protective measures and devices
EN 474-1:2022, 4.14 shall apply except 4.14.2.3.
4.5 Recovery, towing away for recovery purposes (TARP), tying-down, lifting and
transporting
4.5.1 General
EN 474-1:2022, 4.15 shall apply with the following modification stated in 4.5.2 below.
4.5.2 Towing devices for towing other machines
Attachment points (push and pull mechanisms) on scrapers that are there only to permit two scrapers to
assist each other in loading, are not deemed to be towing devices as defined in EN 474-1:2022, 4.15.5.
5 Verification of the safety require
...