EN ISO 4254-20:2025

SLOVENSKI STANDARD
01-januar-2026
Kmetijski stroji - Varnost - 20. del: Stroji za obiranje grozdja, oljk in kave (ISO 4254
-20:2025)
Agricultural machinery - Safety - Part 20: Grape, olives and coffee harvesters (ISO 4254-
20:2025)
Landmaschinen - Sicherheit - Teil 20: Trauben-, Oliven- und Kaffee-Erntemaschinen
(ISO 4254-20:2025)
Matériel agricole - Sécurité - Partie 20: Machines à vendanger, de récolte des olives et
du café (ISO 4254-20:2025)
Ta slovenski standard je istoveten z: EN ISO 4254-20:2025
ICS:
65.060.50 Oprema za spravilo pridelkov Harvesting equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4254-20
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2025
EUROPÄISCHE NORM
ICS 65.060.50
English Version
Agricultural machinery - Safety - Part 20: Grape, olives and
coffee harvesters (ISO 4254-20:2025)
Matériel agricole - Sécurité - Partie 20: Machines à Landmaschinen - Sicherheit - Teil 20: Trauben-, Oliven-
vendanger, de récolte des olives et du café (ISO 4254- und Kaffee-Erntemaschinen (ISO 4254-20:2025)
20:2025)
This European Standard was approved by CEN on 6 January 2025.

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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4254-20:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC amended by Directive 2009/127/EC
aimed to be covered . 4
European foreword
This document (EN ISO 4254-20:2025) 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 May 2026, and conflicting national standards shall be
withdrawn at the latest by May 2026.
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 addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, 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 website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4254-20:2025 has been approved by CEN as EN ISO 4254-20:2025 without any
modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC amended by Directive
2009/127/EC aimed to be covered
This European Standard has been prepared under a Commission’s standardization request “M/396 to
CEN and CENELEC for standardisation in 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 2016 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) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC
1.1.2. a 4, 5, 6
Principles of safety integration
1.1.2. c 4, 5, 6
Principles of safety integration
1.1.3. Materials and products 4.1.6, 5
1.1.4. Lighting 4.1.3, 5
1.1.6. Ergonomics 4.1.2, 4.1.7, 5
1.1.7. Operating positions 4.1.2, 4.1.7, 5
1.1.8. Seating 4.1.2, 5
1.2.1. Safety and reliability of 4.1.2, 4.1.5, 5
control systems
1.2.2. Control devices 4.1.2, 5
1.2.3. Starting 4.2.2, 4.3.1, 4.1.5, 5
1.2.4.1. Normal stop 4.1.2, 4.2.1, 4.2.2, 4.3.1
1.2.4.3. Emergency stop 4.1.5, 4.2.2, 4.3.1, 5
1.2.5. Selection of control or 4.1.5, 4.2.3, 4.2.4, 4.2.2, 4.3.2, 5
operating modes
1.2.6. Failure of the power 4.2.1, 4.2.2, 4.3.1, 4.3.2, 5
supply
1.3.1. Risk of loss of stability 4.2.3, 4.2.4, 4.2.5, 4.3.3, 5
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC
1.3.2. Risk of break-up during 4.1.2, 5
operation
1.3.4. Risks due to surfaces,  Not covered
edges or angles
1.3.6. Risks related to variations 4.1.5, 5
in operating conditions
1.3.7. Risks related to moving 4.1.4, 4.1.5.3, 4.1.5.4, 4.1.5.5
parts
1.3.8. Choice of protection 4.1.2, 4.1.5, 5
against risks arising from
moving parts
1.3.8.1. Moving transmission 4.1.2, 4.1.5, 5
parts
1.3.8.2. Moving parts involved in 4.1.2, 4.1.5, 5
the process
1.4.1. General requirements  Not covered
1.4.2.1. Fixed guards  Not covered
1.4.2.2. Interlocking movable 4.1.5, 5
guards
1.5.1. Electricity supply 4.2.11, 5
1.5.3. Energy supply other than 4.1.2, 4.3.5, 5
electricity
1.5.5. Extreme temperatures 4.1.2, 5
1.5.8. Noise 4.2.6, 4.3.4, 5, 6
1.5.9. Vibrations 4.1.2
1.5.14. Risk of being trapped in a 4.2.1, 5
machine
1.5.15. Risk of slipping, tripping 4.1.6, 4.1.7, 5
or falling
1.6.1. Machinery maintenance 4.1.5, 5
1.6.2. Access to operating 4.1.5, 5
positions and servicing points
1.6.3. Isolation of energy sources 4.2.11, 5
1.7.1. Information and warnings 6
on the machinery
1.7.1.1. Information and 6
information devices
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC
1.7.2. Warning of residual risks 6.1, 6.2
1.7.3. Marking of machinery 6.3
1.7.4. Instructions 6.1
1.7.4.1. General principles for  Not covered
the drafting of instructions
1.7.4.2. Contents of the 6.1
instructions
1.7.4.3. Sales literature  Not covered
3. SUPPLEMENTARY ESSENTIAL
HEALTH AND SAFETY
REQUIREMENTS TO OFFSET
HAZARDS DUE TO THE
MOBILITY OF MACHINERY
3.2.1. Driving position  Not covered
3.2.2. Seating 4.2.3, 4.2.4, 5
3.3. CONTROL SYSTEMS 4.1.2, 5
3.3.1. Control devices 4.1.2, 5
3.3.2. Starting/moving 4.2.7, 5
3.3.3. Travelling function 4.2.8, 5
3.3.5. Control circuit failure  Not covered
3.4.2. Moving transmission parts  Not covered
3.4.3. Roll-over and tip-over 4.2.3, 4.2.4, 4.3.3, 5
3.4.5. Means of access 4.1.7, 5
3.4.6. Towing devices  Not covered
3.5.1. Batteries 4.2.11, 5
3.6.1. Signs, signals and 6.3
warnings
3.6.2. Marking  Not covered
3.6.3.1. Vibrations 4.1.2
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.
International
Standard
ISO 4254-20
First edition
Agricultural machinery — Safety —
2025-01
Part 20:
Grape, olives and coffee harvesters
Matériel agricole — Sécurité —
Partie 20: Machines à vendanger, de récolte des olives et du café
Reference number
ISO 4254-20:2025(en) © ISO 2025

ISO 4254-20:2025(en)
© ISO 2025
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 4254-20:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective/risk reduction measures . 3
4.1 General .3
4.1.1 Applicable general standards .3
4.1.2 Applicable standards for agricultural machines .3
4.1.3 Lighting .3
4.1.4 Extractor (blower) .4
4.1.5 Cleaning the harvester .4
4.1.6 Elements in direct contact with grapes .5
4.1.7 Operator’s station .5
4.2 Additional requirements for self-propelled machines .6
4.2.1 Failure of power supply .6
4.2.2 Remote control .6
4.2.3 Stability of the grapes and olives harvester .6
4.2.4 Stability of the coffee harvester .7
4.2.5 Stability for storage of the harvesting picking unit .7
4.2.6 Noise .7
4.2.7 Presence of the operator .8
4.2.8 Brakes .8
4.2.9 Glare.8
4.2.10 Audible alarm .8
4.2.11 Batteries and other power sources .9
4.2.12 Acoustic warning (horn) .9
4.3 Additional requirements for trailed machines .9
4.3.1 Remote control .9
4.3.2 Failure of power supply .9
4.3.3 Stability .9
4.3.4 Noise .9
4.3.5 Brakes .10
5 Verification of the safety requirements and/or protective/risk reduction measures .10
5.1 General .10
5.2 Test for the parking brake .11
6 Information for use .11
6.1 Operator’s manual — Content of the manual .11
6.2 Safety and instructional labels . 13
6.2.1 Safety label about overhead power lines . 13
6.2.2 Criteria . 13
6.2.3 Requirements for safety labels . 13
6.3 Marking . 13
6.3.1 General . 13
6.3.2 Marking for lifting and tying down the machine . 13
6.3.3 Marking regarding stability . 13
Annex A (normative) Additional requirements for remote-controls . 14
Bibliography . 17

iii
ISO 4254-20:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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 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 7, Equipment for harvesting and conservation, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 144, Tractors and machinery for
agriculture and forestry, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
A list of all parts in the ISO 4254 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO 4254-20:2025(en)
Introduction
This document is a type-C standard as stated in ISO 12100:2010.
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 (for example, trade unions, organizations for people with special needs);
— service providers, for example for maintenance (small, medium and large enterprises);
— consumers (in the 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 and systems 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.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the Scope of this document. These hazards are specific to grape, olives and coffee harvesters.
Significant hazards that are common to all the agricultural machines (self-propelled ride-on, mounted, semi-
mounted and trailed) are dealt with in ISO 4254-1:2013 and ISO 4254-1:2013/AMD1:2021.

v
International Standard ISO 4254-20:2025(en)
Agricultural machinery — Safety —
Part 20:
Grape, olives and coffee harvesters
1 Scope
This document, when used together with ISO 4254-1:2013 and ISO 4254-1:2013/AMD1:2021, specifies the
safety requirements and their verification for the design and construction of trailed and self-propelled
harvesters for grapes, olives and coffee. It describes methods for the elimination or reduction of hazards
arising from the intended use 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.
When provisions of this document are different from those which are stated in ISO 4254-1:2013 and
ISO 4254-1:2013/AMD1:2021, the provisions of this document take precedence over the provisions of
ISO 4254-1:2013 and ISO 4254-1:2013/AMD1:2021 for machines that have been designed and built according
to the provisions of this document.
This document, taken together with ISO 4254-1:2013 and ISO 4254-1:2013/AMD1:2021, deals with all
the significant hazards, hazardous situations and events relevant to trailed and self-propelled harvesters
for grapes, olives and coffee, when they are used as intended and under the conditions of misuse that are
reasonably foreseeable by the manufacturer. It is not applicable to hazards arising from the presence of
persons other than the operator, hazards related to lack of visibility, except lighting, hazards related to
vibrations and moving parts for power transmission, except for strength requirements for guards and
barriers.
This document does not deal with environmental hazards, except noise.
In respect of steering of self-propelled machines, it is applicable only to the ergonomic aspects (for example,
location of the steering wheel); no other aspects related to steering are covered.
NOTE Specific requirements related to road traffic regulations are not taken into account in this document.
This document is not applicable to machines manufactured before the date of its publication.
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.
ISO 3600:2022, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment —
Operator's manuals — Content and format
ISO 3776-1:2006, Tractors and machinery for agriculture — Seat belts — Part 1: Anchorage location
requirements
ISO 3776-2:2013, Tractors and machinery for agriculture — Seat belts — Part 2: Anchorage strength
requirements
ISO 3776-3:2009, Tractors and machinery for agriculture — Seat belts — Part 3: Requirements for assemblies
ISO 4254-1:2013, Agricultural machinery — Safety — Part 1: General requirements

ISO 4254-20:2025(en)
ISO 4254-1:2013/AMD 1:2021, Agricultural machinery — Safety — Part 1: General requirements — Amendment 1
ISO 5700:2013, Tractors for agriculture and forestry — Roll-over protective structures — Static test method
and acceptance conditions
ISO 5721-1:2013, Agricultural tractors — Requirements, test procedures and acceptance criteria for the
operator's field of vision — Part 1: Field of vision to the front
ISO 7000:2019, Graphical symbols for use on equipment — Registered symbols
ISO 9533:2010, Earth-moving machinery — Machine-mounted audible travel alarms and forward horns — Test
methods and performance criteria
ISO 10263-4:2009, Earth-moving machinery — Operator enclosure environment — Part 4: Heating, ventilating
and air conditioning (HVAC) test method and performance
ISO 11684:2023, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment —
Safety labels — General principles
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13850:2015, Safety of machinery — Emergency stop function — Principles for design
ISO 16231-1:2013, Self-propelled agricultural machinery — Assessment of stability — Part 1: Principles
ISO 16231-2:2015, Self-propelled agricultural machinery — Assessment of stability — Part 2: Determination of
static stability and test procedures
IEC 60529:1989+AMD1:1999+AMD2:2013, CSV, Degrees of protection provided by enclosures (IP Code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4254-1:2013, ISO 4254-1:2013/
AMD1:2021, ISO 12100:2010 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
grape harvester
olive harvester
mobile harvesting machine for picking up grape berries or olives, separating, cleaning and conveying them into
a tank which is part of the harvester, or into an external tank, and depositing harvest residue onto the ground
3.2
coffee harvester
mobile harvesting machine for picking up coffee cherries (or drupes), separating, cleaning and conveying
them into a tank and depositing harvest residue onto the ground
3.3
shaker
device of the harvester which removes the fruits from the tree by contact and vibration on the branches
3.4
conveyor
device or combination of devices of the harvester which transfer the harvested product through the sections
of the machine until unloading it

ISO 4254-20:2025(en)
3.5
extractor
blower
device or combination of devices of the harvester which separate the fruits from leaves and branches
3.6
destemmer
device or combination of devices of the harvester which separate the stems or branches from the individual fruits
3.7
auger
device of the harvester which spreads the fruits in the storage tank (3.10) or to transfer the fruit from one
conveyor (3.4) to another conveyor or tank
3.8
separating system
device or combination of devices of the harvester which separate residual material from the fruits
3.9
discharge conveyor
device of the harvester which brings fruits to an external tank, trailer or to the storage tank (3.10)
3.10
storage tank
section of the harvester dedicated to temporarily store the harvested product
3.11
storage tank discharge conveyor
conveyor (3.4) whose function is to discharge the harvested product to an external tank or trailer
3.12
remote control
remote operator control
operator control of a harvester by wireless or wired transmission of signals from a remote-control box not
located inside the driving operator’s station of the harvester to a receiving unit located on the harvester,
with a range limited to 5 m and dedicated to cleaning and/or maintenance operations
Note 1 to entry: in addition to cleaning and maintenance operations, door opening is an example of possible functions
controlled remotely.
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Applicable general standards
Machinery shall comply with the safety requirements and/or protective/risk reduction measures of this clause.
In addition, the machine shall be designed according to the principles of ISO 12100:2010 for relevant but not
significant hazards which are not dealt with by this document.
4.1.2 Applicable standards for agricultural machines
Except where otherwise specified in this document, the machine shall be in accordance with ISO 4254-1:2013
and ISO 4254-1:2013/AMD1:2021.
4.1.3 Lighting
Forward-facing and rearward-facing work lights for use in the field shall be provided.

ISO 4254-20:2025(en)
The forward-facing lights shall at minimum illuminate the area defined by ISO 5721-1:2013, 3.6.
The rearward-facing lights shall, at minimum, illuminate an area which, viewing the harvester from the top,
is limited by two lines parallel to the median longitudinal axis of the harvester and tangential to its lateral
outer limits, and by two lines perpendicular to the median longitudinal axis of the harvester, one tangential
to its rear outer limits and the second at 3 m from its rear outer limits.
Emergency stops shall be illuminated, by dedicated separate lights or by an integrated illumination system.
4.1.4 Extractor (blower)
A visual indicator, located on the extractor, shall be automatically activated when power to the extractor is
shut off and remain visible until motion is completely stopped.
If there is no possibility of accidental contact with moving parts, the requirement does not apply.
4.1.5 Cleaning the harvester
4.1.5.1 Instructions
Instructions for safe cleaning of the machine elements shall be provided in the operator’s manual. These
elements include: shaker, destemmer, auger, separating system, discharge conveyor, storage tank, and
storage tank discharge conveyor.
4.1.5.2 Cleaning mode
A specific cleaning mode shall be provided for the machine.
The cleaning mode shall be activated from the driving operator’s station. Activation shall be intentional and
acknowledged by the operator. The acknowledging shall lock the cleaning mode as active until reset (for
example, power shut-off) or the activation and acknowledgment of a different mode is performed.
The cleaning functions shall be active only when the cleaning mode for the machine is selected. The cleaning
functions can be provided either as a dedicated control(s) or by remote control.
The performance level of the safety function associated with the cleaning mode shall be determined
according to ISO 4254-1:2013, 4.20 and ISO 4254-1:2013/AMD1:2021.
An emergency stop device for the machine conforming to ISO 13850:2015 shall be provided on each side of
the longitudinal median plane of the machine, accessible from the ground, close to the separate control(s)
and on the remote control, if provided.
Any emergency-stop controls on the machine shall remain active at all times, independently from the control
mode or station in use (for example, cleaning mode and/or remote control).
The performance level of the emergency stop safety function shall be determined according to
ISO 4254-1:2013, 4.20 and ISO 4254-1:2013/AMD1:2021.
4.1.5.3 Activation of machine elements during cleaning mode
For self-propelled machines, when the cleaning mode is activated, the machine propulsion functions shall
be inactivated. It shall be possible for the operator to leave the seat without interrupting the cleaning
operations (see 4.2.7).
In the cleaning mode, the moving working elements may be operated, but their operating speed shall not
exceed 50 % of the nominal working speed.
For cleaning purposes, it shall be possible to operate only individual machine elements.
If integrated cleaning equipment (for example, pump unit, nozzles) is supplied, their control shall be
activated from the driving operator’s station, the separate control(s) or the remote control.

ISO 4254-20:2025(en)
4.1.5.4 Guards
Conveyors and upper extractors shall be guarded by means of interlocked movable guards when accessible
from an operating position.
4.1.5.5 Access
A place to stand according to ISO 4254-1:2013 and ISO 4254-1:2013/AMD1:2021, 4.8.2, shall be provided for
cleaning parts of the machine not accessible from the ground and the task requires to be performed from an
elevated location on the machine.
To avoid risk of falling, in the case of the operator requiring both hands to perform the cleaning tasks, the
machine shall provide a place to stand with barriers according to ISO 4254-1:2013 and ISO 4254-1:2013/
AMD1:2021, 4.7.2.2. Parts of the machine can be considered to fulfil this requirement.
When daily cleaning is required in normal operation, for machines that require the operator to perform
cleaning tasks at a location higher than 1 000 mm above the ground, a water supply that can be connected
from the ground shall be provided.
To avoid risk of harm from moving parts, accessible from the ground, an activating/de-activating device
shall be provided, which is accessible from the ground or included in the remote control. In particular,
extractors accessible from the ground shall be capable of being stopped for cleaning or of being operated by
the separate control or by the remote control.
The upper extractors which are only accessible from a platform higher than 1 000 mm above the ground,
shall be able:
— to be stopped for cleaning, or
— to be operated by a separate control located at the top of the machine or by the remote control.
4.1.6 Elements in direct contact with grapes
To minimize the need for cleaning operations, elements in direct contact with grapes shall be made of
materials ensuring that the risk of infection is minimized.
In particular, surfaces shall be designed such that the accumulation of residues which can generate
infections, is minimized (for example, by avoiding protruding parts, by providing a low friction lining to
assist sliding of the material).
The machinery shall be designed and constructed in such a way that materials in contact with, or intended
to come into contact with, grapes can be cleaned before each use.
Cleaning mode shall allow for complete draining of residual materials and fluids from cleaning, disinfecting
and rinsing.
Machinery shall be designed and constructed in such a way that no ancillary substances hazardous to health,
including the lubricants used, can come into contact with grapes.
These requirements are not applicable to olive and coffee harvesters.
4.1.7 Operator’s station
For access to operator’s station, provisions of ISO 4254-1:2013 and ISO 4254-1:2013/AMD1:2021, 4.7 apply.
For machines fitted with a cab, the mechanism for opening the door to the operator’s station shall be easily
accessible from the boarding means.
An air conditioning system shall be provided for machines fitted with a cab, and it shall comply with
ISO 10263-4:2009.
ISO 4254-20:2025(en)
4.2 Additional requirements for self-propelled machines
4.2.1 Failure of power supply
For the self-levelling system, a failure in the power supply shall not cause any movement of the machine.
When restarting the engine after an interruption of the power supply, any operational system of the machine
shall not start without action on its dedicated control.
The performance level of the safety function described in the above paragraph shall be determined in
accordance with ISO 4254-1:2013, 4.20 and ISO 4254-1:2013/AMD1:2021.
4.2.2 Remote control
4.2.2.1 General
If the remote control is provided for cleaning or maintenance operations, it shall fulfil the following
requirements and those specified in Annex A.
4.2.2.2 Activation / deactivation
When the remote control is activated, no other controls shall be active, except emergency stops.
The remote control shall authenticate disengagement when exiting the remote mode to activate another
control.
4.2.2.3 Limitation of functions
When the remote control is activated, it shall not be possible to activate the travelling and levelling functions.
4.2.2.4 Identification of the machine related to the remote control
Each control unit shall clearly identify the specific machinery to be controlled from that unit at each
connection, for example, by means of visual or audible indicator which is activated on the machine upon the
activation of the connection of the remote control.
4.2.3 Stability of the grapes and olives harvester
To ensure protection of the operator against the risks related to roll-over, ISO 16231-1:2013 and
ISO 16231-2:2015 shall apply.
ROPS shall be fitted if:
— results of machine stability analysis per ISO 16231-1:2013 and ISO 16231-2:2015 indicate requirement
for ROPS, or
— the machine is intended to be used on slopes of more than 20 % for machines without a self-levelling
system, or
— the machine is intended to be used on slopes of more than 30 % for machines with a self-levelling system.
In the case of the machine becoming unstable (for example, when operating the hopper for discharging or
the conveying system for emptying) while emptying the hopper on slopes or inclines, different from normal
operation working slopes or inclines, an additional calculation of the tipping angle shall be made.
The machine shall not be able to continue to unload if the slope and incline limits of the machine are exceeded
during unloading operation.
When a ROPS is fitted, it shall be designed to fulfil OECD code IV or VIII for tractors or in accordance with
ISO 5700:2013.
ISO 4254-20:2025(en)
Seat-belts shall be provided according to ISO 3776-1:2006 and ISO 3776-2:2013.
The slope shall be indicated to the operator in a continuous manner. A warning device, activated when the
slope reaches 90 % of the limit slope(s) specified by the manufacturer, shall be provided.
For self-levelling machines, the self-levelling system can act automatically or manually. In the case of manual
intervention by the operator on the levelling system, the system shall automatically detect the direction of
correction given by the operator and, if the correction approaches instability, the system shall automatically
stop movement upon reaching the limit determined by the manufacturer. In the case of hydraulic power
interruption, the self-levelling system shall maintain its position.
The performance level of the self-levelling safety function shall be determined in accordance with
ISO 4254-1:2013, 4.20 and ISO 4254-1:2013/AMD1:2021.
4.2.4 Stability of the coffee harvester
In case of rollover of a self-propelled coffee harvester, the protection of the operator is considered sufficient
if the design of the machine (shape and integrated structure, or cab in combination with or without the
structure of the machine), in combination with a restraining system in accordance with ISO 3776-1:2006,
ISO 3776-2:2013 and ISO 3776-3:2009, gives sufficient space to
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