Agricultural machinery - Safety - Part 12: Rotary mowers and flail-mowers (ISO 4254-12:2012)

This part of ISO 4254, to be used together with ISO/FDIS 4254-1:2004, specifies safety requirements and their verification for the design and construction of rotary mowers and flail-mowers with one or several vertical axes or a horizontal axis, mounted, semi-mounted,trailed or self-propelled. In addition, this document specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.

Landmaschinen - Sicherheit - Teil 12: Kreiselmähwerke und Schlegelmäher (ISO 4254-12:2012)

Dieser Teil von ISO 4254, sofern gemeinsam mit ISO 4254-1 angewendet, legt die sicherheitstechnischen Anforderungen und deren Überprüfung hinsichtlich der Gestaltung und konstruktiven Ausführung von Scheiben  und Trommelmähwerke (Kreiselmähwerke) für die Ernte von Futterpflanzen und für Schlegelmäher mit horizontaler Achse, die nur in der Landwirtschaft zum Einsatz kommen, die nur in der Landwirtschaft zum Einsatz kommen und die angebaut, aufgesattelt, gezogen oder selbstfahrend sind, fest. Sie beschreibt Maßnahmen zur Vermeidung oder Verminderung von Gefährdungen, die sich aus der bestimmungsgemäßen Verwendung und der vernünftigerweise vorhersehbaren Fehlanwendung dieser Maschinen im Rahmen des normalen Betriebes und der Wartung durch eine Person (Bedienungsperson) ergeben. Außerdem legt sie die Art von Informationen über sichere Arbeitsbedingungen fest, die vom Hersteller zur Verfügung zu stellen sind.
Enthalten sind Schlegelmäher mit horizontaler Achse, die lediglich zu Wartungszwecken auf der Rückseite geöffnet werden können.
Dieser Teil von ISO 4254 gilt auch für Mähwerke, die mit einer Aufbereitungseinrichtung ausgestattet sind.
Dieser Teil von ISO 4254 gilt nur für Mähwerke, die in Bodennähe arbeiten; Beispiele dafür sind A.1 zu entnehmen.
Wenn sich Anforderungen dieses Teils von ISO 4254 von denen unterscheiden, die in ISO 4254-1 festgelegt sind, haben die Anforderungen dieses Teils von ISO 4254 Vorrang gegenüber den Anforderungen von ISO 4254-1 für Maschinen, die nach den Anforderungen dieses Teils von ISO 4254 konzipiert und gebaut worden sind.
Dieser Teil von ISO 4254 zusammen mit ISO 4254 1 angewendet behandelt alle signifikanten Gefährdungen (wie in Tabelle 1 aufgelistet), Gefährdungssituationen und –ereignisse (mit der Ausnahme von Geräuschen und Schwingungen), die für Kreiselmähwerke und Schlegelmäher relevant sind, wenn sie bestimmungsgemäß und unter den Bedingungen der Fehlanwendung, die vom Hersteller vernünftigerweise vorhersehbar sind, angewendet werden (siehe Abschnitt 4).
Sie gilt nicht für (siehe Beispiele in A.2)
-   Schlegelmähwerke, deren hinterer Teil für bestimmte Feldarbeiten geöffnet werden kann;
-   Mähwerke mit Gelenkarm;
-   Mähwerke mit einer oder mehreren vertikalen Achsen, die zum Mulchen vorgesehen sind;
-   mitgängergeführte Motormäher;
-   Rasenmäher;
-   Zwischenreihenmäher;
-   Maschinen, die speziell für den Straßenbetriebsdienst ausgelegt sind.
Dieser Teil von ISO 4254 behandelt nicht Umweltgefährdungen, Straßenverkehrssicherheit und Gefährdungen im Zusammenhang mit bewegten Teilen der Kraftübertragung. Er behandelt nicht Gefährdungen hinsichtlich Wartung oder Reparaturen, die von professionellem Servicepersonal durchzuführen sind.
ANMERKUNG   Besondere Anforderungen in Bezug auf Straßenverkehrsvorschriften werden in diesem Teil von ISO 4254 nicht berücksichtigt.
Dieser Teil von ISO 4254 gilt nicht für Maschinen, die vor dem Datum der Veröffentlichung dieses Dokuments hergestellt wurden.

Matériel agricole - Sécurité - Partie 12: Faucheuses rotatives et faucheuses broyeuses (ISO 4254-12:2012)

L'ISO 4254-12:2012, destinée à être utilisée conjointement avec l'ISO 4254-1, spécifie les exigences de sécurité et leur vérification pour la conception et la construction de faucheuses rotatives à disques et de faucheuses rotatives à tambours, uniquement utilisées en agriculture pour la récolte de fourrage, ainsi que de faucheuses-broyeuses à axe horizontal pour l'agriculture, portées, semi-portées, traînées ou automotrices. Elle décrit des méthodes pour l'élimination ou la réduction de phénomènes dangereux inhérents à l'utilisation normale et à la mauvaise utilisation raisonnablement prévisible de ces machines par une personne (l'opérateur) durant le fonctionnement normal et l'entretien. En outre, elle spécifie le type d'informations que le fabricant doit donner sur les pratiques d'utilisation sûre.
Les faucheuses-broyeuses à axe horizontal pouvant être ouvertes à l'arrière uniquement pour la maintenance sont incluses dans le domaine d'application.
L'ISO 4254-12:2012, est également applicable aux faucheuses équipées d'un dispositif de conditionnement de fourrage et exclusivement applicable aux faucheuses destinées à travailler au niveau du sol.
L'ISO 4254-12:2012, utilisée conjointement avec l'ISO 4254-1, traite tous les phénomènes dangereux, situations et événements dangereux significatifs (à l'exception du bruit et des vibrations) inhérents à ces machines agricoles lorsqu'elles sont utilisées normalement et lorsqu'elles font l'objet d'un mauvais usage raisonnablement prévisible par le fabricant.
L'ISO 4254-12:2012 n'est pas applicable aux faucheuses-broyeuses à axe horizontal pouvant être ouvertes à l'arrière pour des usages particuliers dans les champs, aux faucheuses à bras articulés, aux faucheuses à un ou plusieurs axes verticaux, destinées au broyage, aux motofaucheuses à conducteur à pied, aux tondeuses à gazon, aux faucheuses interlignes, ni aux machines spécialement conçues pour l'entretien des autoroutes et des routes.

Kmetijski stroji - Varnost - 12. del: Rotacijske kosilnice in mulčerji (ISO 4254-12:2012)

Ta del standarda ISO 4254, ki se uporablja skupaj s standardom ISO/FDIS 4254-1:2004, določa varnostne zahteve in njihovo preverjanje za projektiranje ter konstrukcijo rotacijskih kosilnic in mulčerjev z eno ali več vertikalnimi osmi ali horizontalno osjo, nošenih, polnošenih, vlečnih ali z lastnim pogonom. Ta dokument določa tudi vrste informacij o varnih delovnih praksah (vključno z ostalimi tveganji), ki jih mora zagotoviti proizvajalec.

General Information

Status
Published
Public Enquiry End Date
24-Mar-2008
Publication Date
16-Jul-2012
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Jul-2012
Due Date
08-Sep-2012
Completion Date
17-Jul-2012

RELATIONS

Buy Standard

Standard
SIST EN ISO 4254-12:2012
English language
37 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 4254-12:2012
01-september-2012
1DGRPHãþD
SIST EN 745:1999+A1:2009

.PHWLMVNLVWURML9DUQRVWGHO5RWDFLMVNHNRVLOQLFHLQPXOþHUML ,62



Agricultural machinery - Safety - Part 12: Rotary mowers and flail-mowers (ISO 4254-

12:2012)

Landmaschinen - Sicherheit - Teil 12: Kreiselmähwerke und Schlegelmäher (ISO 4254-

12:2012)

Matériel agricole - Sécurité - Partie 12: Faucheuses rotatives et faucheuses broyeuses

(ISO 4254-12:2012)
Ta slovenski standard je istoveten z: EN ISO 4254-12:2012
ICS:
65.060.50 Oprema za spravilo pridelkov Harvesting equipment
SIST EN ISO 4254-12:2012 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 4254-12:2012
---------------------- Page: 2 ----------------------
SIST EN ISO 4254-12:2012
EUROPEAN STANDARD
EN ISO 4254-12
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2012
ICS 65.060.50 Supersedes EN 745:1999+A1:2009
English Version
Agricultural machinery - Safety - Part 12: Rotary disc and drum
mowers and flail mowers (ISO 4254-12:2012)

Matériel agricole - Sécurité - Partie 12: Faucheuses Landmaschinen - Sicherheit - Teil 12: Kreiselmähwerke

rotatives à disques, faucheuses rotatives à tambours et und Schlegelmäher (ISO 4254-12:2012)

faucheuses-broyeuses (ISO 4254-12:2012)
This European Standard was approved by CEN on 23 June 2012.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4254-12:2012: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 4254-12:2012
EN ISO 4254-12:2012 (E)
Contents Page

Foreword ..............................................................................................................................................................3

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 2006/42/EC ..........................................................................................4

---------------------- Page: 4 ----------------------
SIST EN ISO 4254-12:2012
EN ISO 4254-12:2012 (E)
Foreword

This document (EN ISO 4254-12:2012) has been prepared by Technical Committee ISO/TC 23 "Tractors and

machinery for agriculture and forestry" in collaboration with Technical Committee CEN/TC 144 “Tractors and

machinery for agriculture and forestry” the secretariat of which is held by AFNOR.

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 December 2012, and conflicting national standards shall be withdrawn

at the latest by December 2012.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 745:1999+A1:2009.

It is intended to be used together with EN ISO 4254-1:2009 "Agricultural machinery - Safety - Part 1: General

requirements (ISO 4254-1:2008)" and EN 15811:2009 "Agricultural machinery - Guards for moving parts of

power transmission - Guard opening with tool (ISO/TS 28923:2007 modified)".

This second edition cancels and replaces the first edition (EN 745:1999+A1:2009), which has been technically

revised.
The following major changes were introduced:

 requirements related to the scope and an enlargement to include rotary disc mowers, rotary drum mowers

and flail mowers with a horizontal axis;

 requirements related to the protection against inadvertent contact with the cutting elements, with new and

additional test criteria;

 requirements related to thrown object tests, with inclusion of two new parts to a revised standard

(ISO 17101), have been introduced with increased criteria for rotary and flail mower machines.

This document has been prepared under a mandate 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.

According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice

The text of ISO 4254-12:2012 has been approved by CEN as a EN ISO 4254-12:2012 without any

modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 4254-12:2012
EN ISO 4254-12:2012 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association to provide a means of conforming to Essential Requirements of the

New Approach Directive 2006/42/EC on machinery.

Once this standard is cited in the Official Journal of the European Union under that Directive and has been

implemented as a national standard in at least one Member State, compliance with the normative clauses of

this standard confers, within the limits of the scope of this standard, a presumption of conformity with the

relevant Essential Requirements, except Essential Requirement(s) for all machines: 1.1.7, 1.2.1, 1.3.2,

1.3.8.1, 1.4.2.1 (2nd paragraph), 1.7.4.2 u), 3.3.1, and additionally for self-propelled machines: 1.1.4, 1.1.8,

1.5.5, 1.5.9, 3.3.2, 3.3.3, 3.4.3, 3.6.3.1 of that Directive and associated EFTA regulations.

WARNING Other requirements and other EU Directives may be applicable to the product(s) falling

within the scope of this standard.
---------------------- Page: 6 ----------------------
SIST EN ISO 4254-12:2012
INTERNATIONAL ISO
STANDARD 4254-12
First edition
2012-06-15
Agricultural machinery — Safety —
Part 12:
Rotary disc and drum mowers and flail
mowers
Matériel agricole — Sécurité —
Partie 12: Faucheuses rotatives à disques, faucheuses rotatives à
tambours et faucheuses-broyeuses
Reference number
ISO 4254-12:2012(E)
ISO 2012
---------------------- Page: 7 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)
Contents Page

Foreword ............................................................................................................................................................ iv

Introduction ......................................................................................................................................................... v

1  Scope ...................................................................................................................................................... 1

2  Normative references ............................................................................................................................ 2

3  Terms and definitions ........................................................................................................................... 2

4  List of significant hazards .................................................................................................................... 3

5  Safety requirements and/or protective measures .............................................................................. 5

5.1  General ................................................................................................................................................... 5

5.2  Protection against inadvertent contact with the cutting elements .................................................. 5

5.3  Protection against thrown objects that are not part of the machine ............................................. 13

5.4  Protection during handling and transport ........................................................................................ 13

5.5  Additional safety requirements for conditioning devices as an attachment or an integral

part of the rotary disc or drum mower .............................................................................................. 13

5.6  Controls for adjustments .................................................................................................................... 19

5.7  Blades ................................................................................................................................................... 19

5.8  Overrunning clutch or freewheel device ........................................................................................... 19

5.9  Implement hitch or carrier frame ....................................................................................................... 19

6  Verification of safety requirements and/or protective measures ................................................... 19

6.1  General ................................................................................................................................................. 19

6.2  Thrown object test ............................................................................................................................... 19

6.3  Protective skirts test ........................................................................................................................... 20

7  Information for use .............................................................................................................................. 20

7.1  Operator's manual ............................................................................................................................... 20

7.2  Marking ................................................................................................................................................. 21

Annex A (informative) Illustrations of mowers .............................................................................................. 22

Bibliography ...................................................................................................................................................... 28

© ISO 2012 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

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.

ISO 4254-12 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and

forestry, Subcommittee SC 7, Equipment for harvesting and conservation.

ISO 4254 consists of the following parts, under the general title Agricultural machinery — Safety:

 Part 1: General requirements
 Part 5: Power-driven soil-working machines
 Part 6: Sprayers and liquid fertilizer distributors
 Part 7: Combine harvesters, forage harvesters and cotton harvesters
 Part 8: Solid fertilizer distributors
 Part 9: Seed drills
 Part 10: Rotary tedders and rakes
 Part 11: Pick-up balers
 Part 12: Rotary disc and drum mowers and flail mowers
 Part 13: Large rotary mowers
The following part is under preparation:
 Part 14: Mounted, semi-mounted and trailed bale wrappers

Part 2, Anhydrous ammonia applicators, has been withdrawn; Part 3, Tractors, has been cancelled and is

replaced by ISO 26322 (all parts), Tractors for agriculture and forestry — Safety; and Part 4, Forestry

winches, has been cancelled and replaced by ISO 19472, Machinery for forestry — Winches — Dimensions,

performance and safety.

1) For the purposes of global relevance, the requirements related to the guarding of moving parts for power transmission

have been transferred and published as two separate Technical Specifications: ISO/TS 28923:2007 (Guard opening with

tool) and ISO/TS 28924:2007 (Guard opening without tool).
2) To be published.
iv © ISO 2012 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)
Introduction
The structure of safety standards in the field of machinery is as follows.

a) Type-A standards (basic standards) giving basic concepts, principles for design, and general aspects that

can be applied to machinery.

b) Type-B standards (generic safety standards) dealing with one or more safety aspect(s) or one or more

type(s) of safeguards that can be used across a wide range of machinery:

 type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise);

 type-B2 standards on safeguards (e.g. two-hand controls, interlocking devices, pressure sensitive

devices, guards);

c) Type-C standards (machinery safety standards) dealing with detailed safety requirements for a particular

machine or group of machines.
This document is a type-C standard as stated in ISO 12100.

The machinery concerned and the extent to which hazards, hazardous situations and events are covered are

indicated in the Scope of this part of ISO 4254. These hazards are specific to rotary disc mowers, rotary drum

mowers, as used for forage crop harvesting in agriculture only, and flail mowers with horizontal axis for

agriculture only, that are mounted, semi-mounted, trailed or self-propelled.

Significant hazards that are common to all the agricultural machines (self-propelled ride-on, mounted, semi-

mounted and trailed) are dealt with in ISO 4254-1.

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 provisions of this type-C standard.

© ISO 2012 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 4254-12:2012
---------------------- Page: 12 ----------------------
SIST EN ISO 4254-12:2012
INTERNATIONAL STANDARD ISO 4254-12:2012(E)
Agricultural machinery — Safety —
Part 12:
Rotary disc and drum mowers and flail mowers
1 Scope

This part of ISO 4254, where used with ISO 4254-1, specifies the safety requirements and their verification for

the design and construction of rotary disc mowers, rotary drum mowers, as used for forage crop harvesting in

agriculture only, and flail mowers with a horizontal axis for use in agriculture only, that are mounted, semi-

mounted, trailed or self-propelled. It describes methods for the elimination or reduction of hazards arising from

the intended use and reasonably foreseeable misuse of these machines by one person (the operator) in the

course of normal operation and service. In addition, it specifies the type of information on safe working

practices to be provided by the manufacturer.

Flail mowers with a horizontal axis that can be opened at the rear only for maintenance reasons are included.

This part of ISO 4254 is also applicable to mowers equipped with a conditioning device.

This part of ISO 4254 is applicable only to mowers intended to work at ground level, examples of which are

given in A.1.

When requirements of this part of ISO 4254 are different from those which are stated in ISO 4254-1, the

requirements of this part of ISO 4254 take precedence over the requirements of ISO 4254-1 for machines that

have been designed and built according to the requirements of this part of ISO 4254.

This part of ISO 4254, taken together with ISO 4254-1, deals with all the significant hazards (as listed in

Table 1), hazardous situations and events (with the exception of noise and vibrations) relevant to rotary disc

mowers, rotary drum mowers and flail mowers, when they are used as intended and under the conditions of

misuse that are reasonably foreseeable by the manufacturer (see Clause 4).
It is not applicable to (see examples in A.2)

 flail mowers that have the rear part which can be opened for particular field use operations,

 mowers with an articulated arm,
 mowers with one or more vertical axes designed for mulching,
 pedestrian-controlled motor mowers,
 lawn mowers,
 inter-row mowing units, or
 machines specifically designed for highway and road maintenance.

This part of ISO 4254 does not deal with environmental hazards, road safety and hazards related to moving

parts for power transmission. It does not deal with hazards related to maintenance or repairs to be carried out

by professional service personnel.
© ISO 2012 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)

NOTE Specific requirements related to road traffic regulations are not taken into account in this part of ISO 4254.

This part of ISO 4254 is not applicable to machines manufactured before the date of its publication.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

ISO 3600:1996, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment —

Operator's manuals — Content and presentation
ISO 4254-1:2008, Agricultural machinery — Safety — Part 1: General requirements

ISO 5718:2002, Harvesting equipment — Blades for agricultural rotary mowers — Requirements

ISO 11684:1995, Tractors, machinery for agricultural and forestry, powered lawn and garden equipment —

Safety signs and hazard pictorials — General principles

ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction

ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper

and lower limbs

ISO 14982:1998, Agricultural and forestry machinery — Electromagnetic compatibility — Test methods and

acceptance criteria
3 )

ISO 17101-1:— , Agricultural machinery — Thrown-object test and acceptance criteria — Part 1: Rotary

mowers

ISO 17101-2:— , Agricultural machinery — Thrown-object test and acceptance criteria — Part 2: Flail mowers

ISO 17103:2009, Agricultural machinery — Rotary disc mowers, rotary drum mowers and flail mowers — Test

methods and acceptance criteria for protective skirts
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 12100 and ISO 4254-1 and the

following apply.
NOTE For illustrations of mowers and components, see A.1.
3.1
rotary mower

mower in which one or more functional components cut or shear forage crop by impact without mulching and

rotate about a vertical axis
3.1.1
rotary disc mower

rotary mower (3.1) where the drive line is below the path of the cutting elements

3) To be published. (Revision of ISO 17101:2004)
2 © ISO 2012 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)
3.1.2
drum mower

rotary mower (3.1) where the drive line is above the path of the cutting elements

3.1.3
cutting height

disc and drum mowers distance from the ground to the active cutting edge of the cutting element when the

cutting element is in the forward-most position of rotation
3.2
flail mower

mower with a multiplicity of free-swinging cutting elements that rotate about a horizontal axis, which cuts the

crop by impact and mulches it with the same working elements
3.3
conditioning device
mechanical device allowing the acceleration of the crop-drying process

NOTE Examples of acceleration of the crop-drying process are crushing, impact, abrasion and lamination.

3.3.1
roll type conditioner

conditioning device (3.3) that enhances the crop-drying process by passing crop material between, at least,

two rollers
3.3.2
impeller type conditioner

conditioning device (3.3) that enhances the crop-drying process by utilizing tines or spokes to scrub off the

wax coating from the crop or bend the stems
3.4
mulching

operation intended to chop the crop and leave the material on the ground to naturally decompose

3.5
protective skirt
skirt used on the machine to provide protection from thrown objects
4 List of significant hazards

Table 1 specifies the significant hazards, the significant hazardous situations and significant hazardous

event(s) covered by this part of ISO 4254, that have been identified by risk assessment as being relevant to

this type of machine, and which require specific action by the designer or manufacturer to eliminate or to

reduce the risk.

Attention is drawn to the necessity to verify that the safety requirements specified in this part of ISO 4254

apply to each significant hazard presented by a given machine and to validate that the risk assessment is

complete.
© ISO 2012 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)

Table 1 — List of significant hazards associated with rotary disc mowers, rotary drum mowers and

flail mowers
Hazardous situation Clause/subclause of Clause/subclause of
Hazard
No.
and event ISO 4254-1:2008 this part of ISO 4254
A.1 Mechanical hazards

A.1.1 Crushing Persons in danger 4.4.3; 4.5.1.1.2; 4.5.1.2.5; 5.1; 5.4; 5.5; 5.6; 7.1;

zone; 4.5.2; 4.5.2.2; 4.6; 4.7; 4.8; 7.2
4.14.1; 4.14.3; 4.14.5; 4.14.6;
Coupling area of
5.1.2.3; 5.1.3.2; 5.1.4; 5.1.8;
machines
5.2; 6.1; 6.2; 6.2.2; 6.2.3; 6.3;
6.4

A.1.2 Shearing Operating area of 4.4.3; 4.5.1.1.2; 4.5.1.2.5; 5.1; 5.2; 5.5; 5.6; 5.7;

rotating/oscillating tools; 4.5.2; 4.5.2.2; 4.6; 4.7; 4.8; 7.1; 7.2
4.14.1; 4.14.3; 4.14.5; 4.14.6;
Moving elements;
5.1.2.3; 5.1.3.2; 5.1.4; 5.1.8;
5.2; 6.1; 6.2; 6.2.2; 6.2.3; 6.3;
Slewing area of
6.4
machines and machine
parts
A.1.3 Cutting or severing Operating area of 4.7 5.2; 5.3; 5.5; 5.6; 5.7;
cutting machinery 5.8; 5.9
A.1.4 Entanglement Operating area of 4.7; 5.1.8; 6.4 5.1; 5.2; 5.5; 5.6; 7.1
rotating machinery;
Rotating or oscillating
machine parts

A.1.5 Drawing-in or trapping Operating area of 4.7; 5.1.8; 6.4 5.4; 5.5; 5.8; 5.9; 7.1;

rotating machinery; 7.2
Rotary or oscillating
machine parts

A.1.6 Impact Operating area of 4.5.1.2.5; 4.14.5; 4.14.6; 5.2; 5.3; 5.4; 5.5; 5.6;

rotating machinery; 5.1.3.1 7.1; 7.2
A.1.10 Ejection of parts 4.7; 4.8 5.3; 5.5; 5.7; 7.1; 7.2
A.6 Hazards generated by neglecting ergonomic principles in machinery design

A.6.1 Unhealthy postures or Manual control of the 4.4; 4.4.5; 4.5; 4.6; 4.14.2; 5.4; 6.1

excessive efforts machine 4.14.4; 5.1.1; 5.1.2.1; 5.1.3;
5.1.5.2
A.6.6 Human error Operating area of the 4.4; 8.1; 8.2 7.1; 7.2
machines
A.8 Unexpected start-up, unexpected overrun/overspeed
A.8.1 Failure/disorder of the 4.4; 6.1 –
control system

A.11 Failure of power Operating area of the 4.8; 4.8.2; 4.9; 5.1.8; 6.1.1; 5.4; 5.5; 5.6

supply machines; 6.5
Starting and stopping 4.4; 5.1.8; 6.1
devices
A.13 Errors of fitting 6.2; 6.3; 8.1; 8.1.3; 8.2 7.1
A.13.1 All kinds of guard 4.7 5.1; 5.5; 5.6; 7.1; 7.2

A.13.2 All kinds of safety- 4.7; 4.14.5; 4.14.6; 5.1.2.3; 5.1; 5.5; 5.6; 7.1; 7.2

related (protection) 6.4
devices
A.13.3 Safety signs and signals 8.2 7.1; 7.3
4 © ISO 2012 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)
Table 1 (continued)
Hazardous situation Clause/subclause of Clause/subclause of
No. Hazard
and event ISO 4254-1:2008 this part of ISO 4254
A.13.4 Essential equipment 4.8; 4.14 7.1; 7.2
and accessories for
safe adjusting and
maintenance
A.16 Loss of stability Prohibited 5.1.2.3; 6.2 7.1
combinations;
Supporting equipment
A.16.1 Hazards due to sudden 5.1.2.3; 6.2 5.1, 5.4, 5.5, 7.1, 7.2
movement, instability,
etc.
A.23 From/to third persons
A.23.3 Hazards to exposed 5.1.2.3; 5.1.8; 6.2 5.4; 5.5; 5.8; 7.1; 7.2
persons due to
uncontrolled movement
With reference to ISO 4254-1:2008, Table A.1.
5 Safety requirements and/or protective measures
5.1 General

5.1.1 Machinery shall comply with the safety requirements and/or protective measures of this clause. In

addition, the machine shall be designed according to the principles of ISO 12100 for hazards relevant but not

significant, which are not dealt with by this part of ISO 4254. The instruction handbook to be provided with the

machine shall comply with 7.1. The machine shall also be marked and carry safety signs according to 7.2

5.1.2 Except where otherwise specified in this part of ISO 4254, the machine shall comply with the

requirements of ISO 4254-1 and with Tables 1, 3, 4 and 6 of ISO 13857:2008 as appropriate.

5.1.3 Machinery shall comply with ISO 14982 for evaluating the electromagnetic compatibility.

5.2 Protection against inadvertent contact with the cutting elements
5.2.1 General

The mower shall be designed or guarded in such a way that inadvertent contact during normal operation with

the cutting elements from the front, and at the rear, the sides and the top is prevented.

5.2.1.1 Rotary disc mowers and rotary drum mowers

Contact with the cutting elements from the top shall be prevented by an imperforate guard or by the device

used to prevent thrown objects (see 5.3), providing it maintains at least an equivalent level of protection .

At any location along the cutting element path that is not either a crop inlet or a crop discharge area, typically

the sides and a portion of the rear, the protection shall be achieved by either one or both of the following:

a) a barrier located in such a way that the distances defined in Figure 1 and Figure 2 are respected. These

distances are measured from the cutting element path and with the mower in working position, the cutting

height, h, being adjusted at 50 mm or as near as possible to 50 mm.
© ISO 2012 – All rights reserved 5
---------------------- Page: 17 ----------------------
SIST EN ISO 4254-12:2012
ISO 4254-12:2012(E)

NOTE 1 See Figure 2 (Detail A) for the correct method of measuring the cutting height.

This barrier can be movable (e.g. removable, foldable) for transport or maintenance purposes. The

removal of the barrier shall only be possible by the use of a tool. Movable barriers shall be kept in the

fixed wo
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.