EN ISO 4254-1:2015/A1:2021

Agricultural machinery - Safety - Part 1: General requirements - Amendment 1 (ISO 4254-1:2013/Amd 1:2021)

2021-11-08 JF:via decision BT C204/2021, taken on 2021-11-03, CEN/BT approved  revised Annex ZA of the EN. EN under publication.
2021-02-18 JF: at the meeting held on 2021-02-17 with French Authorities, HAS Consultant and ISO and CEN representatives the LoC assessment at 2nd FV was resolved
2021-02-01 TAN: The ballot is put on hold in ISO. Ballot cancelled in CEN.
2021-01-06 JF: through decision C224/2020, CEN/BT approved the 2nd vote
2020-07-10 JF: CEN and ISO/TCs intend to have a 2nd vote in order to address LoC assessment as the changes are technical. CCMC asked CEN/TC to launch the ballot on 2nd vote.
2020-06-30 JF: CEN/TC Secretariat informed about the need to revise the Annex ZA in order to address the concerns of market surveillance authorites. The Annex ZA is intended to be revised after the publication of ISO standard

Landmaschinen - Sicherheit - Teil 1: Generelle Anforderungen - Änderung 1 (ISO 4254-1:2013/Amd 1:2021)

Einen Aufzählungspunkt und eine ANMERKUNG zum dritten Absatz ergänzen:
—   maschinenspezifische Performance Level (PL oder AgPL).
ANMERKUNG   Maschinenspezifische Normen können die geforderten PL oder AgPL angeben.

Matériel agricole - Sécurité - Partie 1: Exigences générales - Amendement 1 (ISO 4254-1:2013/Amd 1:2021)

Kmetijski stroji - Varnost - 1. del: Splošne zahteve - Dopolnilo A1 (ISO 4254-1:2013/Amd 1:2021)

General Information

• Status: Published
• Publication Date: 30-Mar-2022
• Withdrawal Date: 29-Jun-2022
• ICS: 65.060.01 - Agricultural machines and equipment in general
• Technical Committee: CEN/TC 144 - Tractors and machinery for agriculture and forestry
• Drafting Committee: CEN/TC 144/WG 1 - General safety requirements
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 15-Dec-2021
• Completion Date: 15-Dec-2021
• 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: SIST EN ISO 4254-1:2016/A1:2022 - Agricultural machinery - Safety - Part 1: General requirements - Amendment 1 (ISO 4254-1:2013/Amd 1:2021)

Relations

• Amends: EN ISO 4254-1:2015 - Agricultural machinery - Safety - Part 1: General requirements (ISO 4254-1:2013)
• Effective Date: 06-Mar-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 4254-1:2016/A1:2022
01-februar-2022
Kmetijski stroji - Varnost - 1. del: Splošne zahteve - Dopolnilo A1 (ISO 4254-
1:2013/Amd 1:2021)

Agricultural machinery - Safety - Part 1: General requirements - Amendment 1 (ISO 4254

-1:2013/Amd 1:2021)
Landmaschinen - Sicherheit - Teil 1: Generelle Anforderungen - ÄNDERUNG 1 (ISO
4254-1:2013/Amd 1:2021)

Matériel agricole - Sécurité - Partie 1: Exigences générales - Amendement 1 (ISO 4254-

1:2013/Amd 1:2021)
Ta slovenski standard je istoveten z: EN ISO 4254-1:2015/A1:2021
ICS:
65.060.01 Kmetijski stroji in oprema na Agricultural machines and
splošno equipment in general
SIST EN ISO 4254-1:2016/A1:2022 en,fr,de

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

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SIST EN ISO 4254-1:2016/A1:2022
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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 65.060.01
English Version
Agricultural machinery - Safety - Part 1: General
requirements - Amendment 1 (ISO 4254-1:2013/Amd
1:2021)

Matériel agricole - Sécurité - Partie 1: Exigences Landmaschinen - Sicherheit - Teil 1: Generelle

générales - Amendement 1 (ISO 4254-1:2013/Amd Anforderungen - Änderung 1 (ISO 4254-1:2013/Amd

1:2021) 1:2021)

This amendment A1 modifies the European Standard EN ISO 4254-1:2015; it was approved by CEN on 8 July 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of

this amendment into the relevant 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 amendment 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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4254-1:2015/A1:2021 E

worldwide for CEN national Members.
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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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

Requirements of Directive 2006/42/EC Machinery aimed to be covered ................................. 4

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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1:2021 (E)
European foreword

This document (EN ISO 4254-1:2015/A1:2021) 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 Amendment to the European Standard EN ISO 4254-1:2015 shall be given the status of a national

standard, either by publication of an identical text or by endorsement, at the latest by June 2022, and

conflicting national standards shall be withdrawn at the latest by June 2022.

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 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) / Regulation(s).

For the relationship with EU Directive(s) see informative Annex ZA, which is an integral part of this

document.

Any feedback and questions on this document should be directed to the users’ national standards

body/national committee. A complete listing of these bodies can be found on the CEN websites.

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, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 4254-1:2013/Amd 1:2021 has been approved by CEN as EN ISO 4254-1:2015/A1:2021

without any modification.
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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1:2021 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Directive 2006/42/EC Machinery aimed to be covered

This European Standard has been prepared under a Commission’s Standardization Request “M/396

mandate to CEN and CENELEC for standardisation in the field of machinery” to provide one voluntary

means of conforming to essential requirements of 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).

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of

the scope of this standard, a presumption of conformity with the corresponding Essential Requirements

of that Directive, and associated EFTA regulations.

Table ZA.1 — Correspondence between this European Standard and Annex I of Directive

2006/42/EC
The relevant Essential
Clause(s)/sub-clause(s)
Requirements of Directive Remarks/Notes
of this EN
2006/42/EC
1. ESSENTIAL HEALTH AND SAFETY
REQUIREMENTS
1.1.2. (a) 4.1; 4.2;
1.1.2. (c) 4, 5, 6, 7, 8
1.1.2. (d) 4, 5, 6, 7, 8
1.1.2. (e) 4, 5, 6, 7, 8
1.1.3. Materials and products 4.1; 4.10; 4.12.1; 4.13.1; 4.14;
5.1.6; 5.4.2; Annex C
1.1.5. Design of machinery to facilitate 4.5; 4.7; 4.8; 4.9; 4.11; 4.15; 4.16;
its handling 4.17; 4.19; 5.1; 5.2; 5.3; 5.5; 5.6;
5.7; 6.1; 6.2; 6.3; 6.4; 8
1.1.6. Ergonomics 4.5; 4.7; 4.8; 4.9; 4.15; 4.17; 5.1;
6.1
1.1.7. Operating positions 4.7; 4.8; 5.1
1.1.8. Seating 4.7.3; 5.1.2
1.2. CONTROL SYSTEMS
1.2.1. Safety and reliability of control 4.5; 4.6; 4.12; 4.13; 4.14; 4.18;
systems 4.19; 4.20
1.2.2. Control devices 4.5; 4.6; 4.19; 5.1.3; 5.1.8; 6.1
1.2.3. Starting 4.6; 5.1.8
1.2.4. Stopping 4.6; 5.1.8; 6.1.1
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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1:2021 (E)
1.2.4.1. Normal stop 5.1.8; 6.1.1
1.2.4.2. Operational stop 4.6;
1.2.4.3. Emergency stop 4.19
1.2.5. Selection of control or operating 4.6; 5.1.3.2
modes
1.2.6. Failure of the power supply 4.6; 4.20
1.3. PROTECTION AGAINST
MECHANICAL HAZARDS
1.3.1. Risk of loss of stability 4.11.2; 5.2.3; 5.7; 6.2; 8.2; 8.4
1.3.2. Risk of break-up during 4.10; 4.11; 4.13; 4.14
operation
1.3.3. Risks due to falling or ejected 4.11; 4.13; 4.9.2; 4.9.3
objects
1.3.4. Risks due to surfaces, edges or 4.1; 5.5
angles
1.3.6. Risks related to variations in 4.6
operating conditions
1.3.7. Risks related to moving parts 4.2; 4.7.1.1.2; 4.8.3.2; 4.9; 4.10;
4.11; 4.17; 4.19; 4.20; 5.1.3; 5.1.4;
5.1.8; 6.4
1.3.8. Choice of protection against risks 6.4
arising from moving parts
1.3.8.2. Moving parts involved in the 4.2; 4.10
process
1.3.9. Risks of uncontrolled movements 4.6; 4.9; 4.11; 4.17; 4.20; 5.1.8;
6.2
1.4. REQUIRED CHARACTERISTICS OF
GUARDS AND PROTECTIVE DEVICES
1.4.1. General requirements 4.1.3; 4.2; 4.10; 6.4
1.4.2.1. Fixed guards 4.1.3; 4.2; 4.7.1.1.2; 4.8.3.4;
4.13.2; 4.17.3; 6.4; 8.2
1.4.2.2. Interlocking movable guards 4.1.3; 8.2
1.4.2.3. Adjustable guards restricting 4.1.3; 8.2
access
1.4.3. Special requirements for 4.1.3; 4.2; 4.9.3; 6.4; 8.2
protective devices
1.5. RISKS DUE TO OTHER HAZARDS
1.5.1. Electricity supply 4.12; 5.3
1.5.3. Energy supply other than 4.13; 4.14; 6.4
electricity
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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1:2021 (E)
1.5.4. Errors of fitting 5.2; 6.3; 8
1.5.5. Extreme temperatures 5.5
1.5.6. Fire 4.1; 5.1.6; 5.4
1.5.8. Noise 4.3
1.5.9. Vibrations 4.4
1.5.10. Radiation 4.18
1.5.11. External radiation Not covered
1.5.13. Emissions of hazardous 4.13; 4.15; 5.1.6; 5.3.1; 5.4; 5.6
materials and substances
1.5.14. Risk of being trapped in a 5.1.5
machine
1.5.15. Risk of slipping, tripping or 4.7; 4.8;
falling
1.6. MAINTENANCE
1.6.1. Machinery maintenance 4.8; 4.11; 4.15; 4.17; 8.1
1.6.2. Access to operating positions and 4.8; 4.11; 4.15; 4.17
servicing points
1.6.3. Isolation of energy sources 5.3.2
1.6.4. Operator intervention 4.1; 4.8; 4.11; 4.15; 4.17
1.7. INFORMATION
1.7.1. Information and warnings on the 8
machinery
1.7.1.1. Information and information 8
devices
1.7.1.2. Warning devices 8.3.4
1.7.2. Warning of residual risks 8.2; 8.3
1.7.3. Marking of machinery 8.4
1.7.4. Instructions
1.7.4.1. General principles for the 8.2
drafting of instructions
1.7.4.2. Contents of the instructions 8.2
3. SUPPLEMENTARY ESSENTIAL
HEALTH AND SAFETY
REQUIREMENTS TO OFFSET HAZARDS
DUE TO THE MOBILITY OF
MACHINERY
3.1. GENERAL 4.1
3.2. WORK POSITIONS
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SIST EN ISO 4254-1:2016/A1:2022
EN ISO 4254-1:2015/A1:2021 (E)
3.2.1. Driving positions 4.7; 5.1 Excluding the second
sentence, concerning
devices to remedy
inadequate direct vision.
3.2.2. Seating 5.1.2
3.2.3. Positions for other persons 4.7.3
3.3. CONTROL SYSTEMS 4.20; 5.1.8.1
3.3.1. Control devices 4.5; 4.6; 4.19; 4.20; 5.1.2.2; 5.1.3;
5.1.8; 6.1
3.3.2. Starting/moving 5.1.3; 5.1.8; 6.2.1.2
3.3.3. Travelling function 5.1.8
3.3.5. Control circuit failure 5.1.3
3.4. PROTECTION AGAINST
MECHANICAL HAZARDS
3.4.1. Uncontrolled movements 4.9; 5.5.2
3.4.2. Moving transmission parts 5.1.8.1
3.4.3. Roll-over and tip-over 5.7
3.4.5. Means of access 4.7; 4.8; 5.1
3.4.6. Towing devices 6.2.2; 6.3
3.4.7. Transmission of power between 6.4
self-propelled machinery (or tractor)
and recipient machinery
3.5. PROTECTION AGAINST OTHER
HAZARDS
3.5.1. Batteries 5.3
3.5.2. Fire 4.1; 4.12; 5.1.6; 5.4
3.6. INFORMATION AND INDICATIONS
3.6.1. Signs, signals and warnings 8.3
3.6.2. Marking 8.3; 8.4
3.6.3. Instructions 8.2
3.6.3.1. Vibrations 8.2
3.6.3.2. Multiple uses 8.2

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European

Standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
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SIST EN ISO 4254-1:2016/A1:2022
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SIST EN ISO 4254-1:2016/A1:2022
INTERNATIONAL ISO
STANDARD 4254-1
Fifth edition
2013-05-01
AMENDMENT 1
2021-07
Agricultural machinery — Safety —
Part 1:
General requirements
AMENDMENT 1
Matériel agricole — Sécurité —
Partie 1: Exigences générales
AMENDEMENT 1
Reference number
ISO 4254-1:2013/Amd.1:2021(E)
ISO 2021
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SIST EN ISO 4254-1:2016/A1:2022
ISO 4254-1:2013/Amd.1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on t
...

SLOVENSKI STANDARD
SIST EN ISO 4254-1:2016/oprA1:2019
01-julij-2019
Kmetijski stroji - Varnost - 1. del: Splošne zahteve - Dopolnilo A1 (ISO 4254-
1:2013/DAM 1:2019)

Agricultural machinery - Safety - Part 1: General requirements - Amendment 1 (ISO 4254

-1:2013/DAM 1:2019)
Landmaschinen - Sicherheit - Teil 1: Generelle Anforderungen - ÄNDERUNG 1 (ISO
4254-1:2013/DAM 1:2019)

Matériel agricole - Sécurité - Partie 1: Exigences générales - Amendement 1 (ISO 4254-

1:2013/DAM 1:2019)
Ta slovenski standard je istoveten z: EN ISO 4254-1:2015/prA1
ICS:
65.060.01 Kmetijski stroji in oprema na Agricultural machines and
splošno equipment in general
SIST EN ISO 4254-1:2016/oprA1:2019 en,fr,de

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

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SIST EN ISO 4254-1:2016/oprA1:2019
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SIST EN ISO 4254-1:2016/oprA1:2019
DRAFT AMENDMENT
ISO 4254-1:2013/DAM 1
ISO/TC 23/SC 3 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-05-29 2019-08-21
Agricultural machinery — Safety —
Part 1:
General requirements
AMENDMENT 1
Matériel agricole — Sécurité —
Partie 1: Exigences générales
AMENDEMENT 1
ICS: 65.060.01
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO 4254-1:2013/DAM 1:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
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SIST EN ISO 4254-1:2016/oprA1:2019
ISO 4254-1:2013/DAM 1:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 4254-1:2016/oprA1:2019
ISO 4254-1:2013/DAM 1:2019(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/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 23, Tractors and machinery for agriculture

and forestry, Subcommittee SC 3, safety and comfort.
A list of all parts in the ISO 4254 series can be found on the ISO website.
© ISO 2019 – All rights reserved iii
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SIST EN ISO 4254-1:2016/oprA1:2019
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SIST EN ISO 4254-1:2016/oprA1:2019
ISO 4254-1:2013/DAM 1:2019(E)
Agricultural machinery — Safety —
Part 1:
General requirements
AMENDMENT 1
2 Normative references
Up-date the reference to ISO 3600 by deleting the year of edition.

Add: ISO 9533, Earth-moving machinery – Machine-mounted audible travel alarms and forward horns –

Test methods and performance criteria
4.7.1.2 Steps and ladders
Modify 4.7.1.2.1 to read:

4.7.1.2.1 The height of the first step shall not exceed 550 mm when measured with the specified tyres

and with the maximum diameter at specified inflation pressure [see 8.2.3 w)]. The vertical distance

between successive steps shall be equal within a tolerance of ± 20 mm. Each step shall have a slip-

resistant surface, a lateral stop at each end and be so designed (for example mudguards, perforated

steps) that an accumulation of mud and/or snow is minimized under normal work conditions.

A flexible connection(s) between the first and second steps is permitted.
Add key E to Figure 3.
Add 'E Height of first step' to the key.
Add: the dimension of 550 mm for both ladders and steps to table 1.
4.8.2 Place to stand
Replace 4.8.2 by:
4.8.3 Place to stand

4.8.3.1 A place provided for standing shall be a minimum of 300 mm width, be flat and have a slip-

resistant surface. Depending on the machine configuration, it may consist of two separate surfaces and

may use machine components. In case of separate surfaces each surface shall be a minimum of 150

mm width. It shall be positioned so the operator can maintain stability while carrying out the service

required and be on the same height level with a tolerance of ± 50 mm.

4.8.3.2 Handhold(s) and/or railings shall be provided in order to allow three point contact. Parts of the

machine can be considered to fulfil this requirement.

4.8.3.3 When access is needed above or next to the PTO (power take-off) drive shaft, an adequate place

to stand and boarding means shall be provided in order to eliminate the need to use the PTO drive shaft

or its guard as a step or a place to stand.
Add 4.8.4 Walkways

Walkways shall be a minimum of 300 mm width. It is allowable for the width to reduce to 250 mm

for short distances to accommodate handrail support members or machine components if it does not

create additional hazards.
© ISO 2019 – All rights reserved 1
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SIST EN ISO 4254-1:2016/oprA1:2019
ISO 4254-1:2013/DAM 1:2019(E)
4.8.3 Boarding means
Replace '4.8.3' by '4.8.2'.
4.20 Safety-related parts of control systems
Replace 4.20 by the following:
Safety-
...