SIST EN ISO 11806-2:2022
(Main)Agricultural and forestry machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 2: Machines for use with backpack power unit (ISO 11806-2:2022, Corrected version 2022-04)
Agricultural and forestry machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 2: Machines for use with backpack power unit (ISO 11806-2:2022, Corrected version 2022-04)
This document specifies safety requirements, and measures for their verification, for the design and
construction of portable, hand-held, powered brush-cutters and grass-trimmers with a backpackmounted combustion engine power source and mechanical power transmission between the power
source and the cutting attachment (hereafter referred to as “machine”). Methods for the elimination
or reduction of hazards arising from the use of these machines and the type of information on safe
working practices to be provided by the manufacturer are specified.
This document, taken together with the relevant clauses of ISO 11806-1:2021 (see 4.1), deals with all
significant hazards, hazardous situations and hazardous events, with the exception of whole-body
vibration from the backpack power unit, relevant to these machines when they are used as intended
and under conditions of misuse which are reasonably foreseeable by the manufacturer.
NOTE 1 A standardized test procedure for measuring whole-body vibration from the backpack power unit is
not available at the time of publication.
NOTE 2 See Annex A, together with ISO 11806-1:2021, Annex A, for a list of significant hazards.
This document is applicable to portable, hand-held, powered brush-cutters and grass-trimmers
manufactured after its date of publication.
This document is not applicable to machines equipped with metallic cutting attachments consisting of
more than one piece, such as pivoting chains or flail blades
Land- und forstwirtschaftliche Maschinen - Sicherheitstechnische Anforderungen und Prüfung für tragbare handgehaltene motorbetriebene Freischneider und Grastrimmer - Teil 2: Maschinen für den Gebrauch mit rückentragbarer Antriebseinheit (ISO 11806-2:2022, korrigierte Fassung 2022-04)
Dieser Teil der ISO 11806 enthält sicherheitstechnische Anforderungen sowie Maßnahmen zu deren Überprüfung für die Gestaltung und Konstruktion von tragbaren, handgehaltenen, motorbetriebenen Freischneidern und Grastrimmern mit rückentragbarer verbrennungsmotorisch betriebener Antriebseinheit und mechanischer Kraftübertragung zwischen der Antriebseinheit und der Schneidgarnitur. Er legt Verfahren für die Beseitigung oder Verringerung von Gefährdungen fest, die durch den Einsatz dieser Maschinen entstehen, sowie die Art der Informationen für sichere Arbeitsweisen, die vom Hersteller zur Verfügung zu stellen sind.
Dieser Teil der ISO 11806, zusammen mit den relevanten Abschnitten von ISO 11806-1 (siehe 4.1), behandelt alle signifikanten Gefährdungen, Gefährdungssituationen oder Gefährdungsereignisse, mit Ausnahme der von rückentragbaren Antriebseinheiten ausgehenden Ganzkörperschwingungen, die für diese Maschinen relevant sind sofern sie für den vorgesehenen Zweck und bei vom Hersteller vernünftigerweise vorhersehbarem Missbrauch eingesetzt werden.
ANMERKUNG 1 Eine standardisierte Prüfmethode zur Messung der Ganzkörperschwingungen, die von der rückentragbaren Antriebseinheit ausgehen, ist derzeit nicht verfügbar.
ANMERKUNG 2 Siehe Anhang A, zusammen mit Anhang A in ISO 11806-1:2020, zur Liste der signifikanten Gefährdungen.
Dieser Teil der ISO 11806 gilt für tragbare handgehaltene motorbetriebene Freischneider und Grastrimmer, die nach dem Ausgabedatum der Norm hergestellt worden sind.
Dieser Teil der ISO 11806 gilt nicht für Maschinen, die mit mehrteiligen, metallischen Schneidgarnituren, z. B. schwenkbaren Ketten oder Schlegelmessern, ausgestattet sind.
Matériel agricole et forestier - Exigences de sécurité et essais pour débroussailleuses et coupe-herbe portatifs à moteur - Partie 2: Machines pour utilisation avec source motrice portée à dos (ISO 11806-2:2022, Version corrigée 2022-04)
Le présent document spécifie les exigences de sécurité et les mesures de protection pour leur vérification, pour la conception et la construction des débroussailleuses et des coupe-herbe portatifs à moteur, tenus à la main, équipés d’une source motrice à moteur à combustion interne, portée à dos, et d’une transmission mécanique de puissance entre la source motrice et le dispositif de coupe (appelés «machines» dans la suite du texte). Il spécifie des méthodes pour éliminer ou réduire les phénomènes dangereux inhérents à l’utilisation de ces machines et le type d’informations devant être fournies par le fabricant sur les pratiques d’utilisation sûre.
Le présent document, conjointement avec les articles pertinents de l’ISO 11806‑1:2021 (voir 4.1), traite de tous les phénomènes dangereux, situations dangereuses et événements dangereux significatifs, à l’exception des vibrations transmises à l’ensemble du corps par la source motrice portée à dos, pertinents pour ces machines lorsqu’elles sont utilisées normalement et dans des conditions de mauvais usage raisonnablement prévisibles par le fabricant.
NOTE 1 Aucune méthode d’essai normalisée permettant de mesurer les vibrations transmises à l’ensemble du corps par la source motrice portée à dos n’est actuellement disponible au moment de la publicaion.
NOTE 2 Pour la liste des phénomènes dangereux significatifs, voir l’Annexe A ainsi que l’ISO 11806‑1:2021, Annexe A.
Le présent document est applicable aux débroussailleuses et aux coupe-herbe portatifs à moteur tenus à la main fabriqués après sa date de publication.
Le présent document n’est pas applicable aux machines équipées de dispositifs de coupe métalliques constitués de plusieurs pièces, comme les chaînes articulées ou les lames à fléau.
Kmetijski in gozdarski stroji - Tehnične varnostne zahteve in preskus za prenosne, ročno vodene kosilnice s prosto rezjo, opremljene z rezilno ploščo ali kosilno nitko - 2. del: Naprave z nahrbtno prenosno pogonsko enoto (ISO 11806-2:2022, popravljena izdaja 2022-04 )
Ta dokument določa varnostne zahteve in ukrepe za njihovo preverjanje za načrtovanje ter izdelavo prenosnih, ročno vodenih kosilnic s prosto rezjo, opremljenih z rezilno ploščo ali kosilno nitko, z nahrbtnim motornim pogonom z notranjim izgorevanjem ter mehanskim prenosom napajanja med virom napajanja in nastavkom za rezanje (v nadaljevanju: »stroji«). Predpisane so metode za odpravljanje ali zmanjšanje tveganj, ki izhajajo iz uporabe teh strojev, in vrsta informacij o varnih delovnih praksah, ki jih mora zagotoviti proizvajalec. Ta dokument poleg ustreznih točk standarda ISO 11806-1:2021 (glej točko 4.1) obravnava vsa večja tveganja, nevarne situacije ali nevarne dogodke v zvezi s temi stroji, razen vibriranja celotnega telesa zaradi nahrbtnega motornega pogona, kadar se uporabljajo v skladu s predvidenim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec. OPOMBA 1: V času objave dokumenta standardiziran preskusni postopek za merjenje vibracij celotnega telesa zaradi nahrbtnega motornega pogona ni na voljo. OPOMBA 2: Za seznam večjih tveganj glej dodatek A tega dokumenta in dodatek A standarda ISO 11806-1:2021. Ta dokument se uporablja za prenosne, ročno vodene kosilnice s prosto rezjo, opremljene z rezilno ploščo ali kosilno nitko, izdelane po datumu njegove izdaje. Ta dokument se ne uporablja za stroje, opremljene s kovinskimi nastavki za rezanje, ki jih sestavlja več delov, npr. vrteče se verige ali mlatilne lopatice.
General Information
Relations
Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11806-2:2022
01-maj-2022
Nadomešča:
SIST EN ISO 11806-2:2012
Kmetijski in gozdarski stroji - Tehnične varnostne zahteve in preskus za prenosne,
ročno vodene kosilnice s prosto rezjo, opremljene z rezilno ploščo ali kosilno
nitko - 2. del: Naprave z nahrbtno prenosno pogonsko enoto (ISO 11806-2:2022,
popravljena izdaja 2022-04 )
Agricultural and forestry machinery - Safety requirements and testing for portable, hand-
held, powered brush-cutters and grass-trimmers - Part 2: Machines for use with
backpack power unit (ISO 11806-2:2022, Corrected version 2022-04)
Land- und forstwirtschaftliche Maschinen - Sicherheitstechnische Anforderungen und
Prüfung für tragbare handgehaltene motorbetriebene Freischneider und Grastrimmer -
Teil 2: Maschinen für den Gebrauch mit rückentragbarer Antriebseinheit (ISO 11806-
2:2022, korrigierte Fassung 2022-04)
Matériel agricole et forestier - Exigences de sécurité et essais pour débroussailleuses et
coupe-herbe portatifs à moteur - Partie 2: Machines pour utilisation avec source motrice
portée à dos (ISO 11806-2:2022, Version corrigée 2022-04)
Ta slovenski standard je istoveten z: EN ISO 11806-2:2022
ICS:
65.060.80 Gozdarska oprema Forestry equipment
SIST EN ISO 11806-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 11806-2:2022
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SIST EN ISO 11806-2:2022
EN ISO 11806-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 65.060.80 Supersedes EN ISO 11806-2:2011
English Version
Agricultural and forestry machinery - Safety requirements
and testing for portable, hand-held, powered brush-cutters
and grass-trimmers - Part 2: Machines for use with
backpack power unit (ISO 11806-2:2022, Corrected
version 2022-04)
Matériel agricole et forestier - Exigences de sécurité et Land- und forstwirtschaftliche Maschinen -
essais pour débroussailleuses et coupe-herbe portatifs Sicherheitstechnische Anforderungen und Prüfung für
à moteur - Partie 2: Machines pour utilisation avec tragbare handgehaltene motorbetriebene
source motrice portée à dos (ISO 11806-2:2022, Freischneider und Grastrimmer - Teil 2: Maschinen für
Version corrigée 2022-04) den Gebrauch mit rückentragbarer Antriebseinheit
(ISO 11806-2:2022, korrigierte Fassung 2022-04)
This European Standard was approved by CEN on 24 August 2021.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 18 May 2022.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11806-2:2022 E
worldwide for CEN national Members.
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 4
2
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
European foreword
This document (EN ISO 11806-2:2022) 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 September 2022, and conflicting national standards
shall be withdrawn at the latest by September 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 supersedes EN ISO 11806-2:2011.
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) / Regulation(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 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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 11806-2:2022, Corrected version 2022-04 has been approved by CEN as EN ISO 11806-
2:2022 without any modification.
3
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered
This European Standard has been prepared under 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 the Directive 2006/42/EC of the European
Parliament and of the Council of 17 May 2006 on machinery.
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 EN Remarks/Notes
Requirements of EU Directive
2006/42/EC
1. ESSENTIAL HEALTH AND SAFETY
REQUIREMENTS
1.1.2. Principles of safety integration 4.1
1.1.3. Materials and products 4.1,4.7
1.1.5. Design of machinery to 4.1,4.2, 4.3, 4.4
facilitate its handling
1.1.6. Ergonomics 4.2, 4.3, 4.4
1.1.7. Operating positions - not covered
1.2. CONTROL SYSTEMS
1.2.1. Safety and reliability of control 4.6
systems
1.2.2. Control devices 4.1, 4.6
1.2.3. Starting 4.1, 4.6
1.2.4. Stopping
1.2.4.1. Normal stop - not covered
1.2.4.2. Operational stop - not covered
1.2.4.4. Assembly of machinery - not covered
1.2.5. Selection of control or 4.6
operating modes
1.2.6. Failure of the power supply - not covered
1.3. PROTECTION AGAINST
MECHANICAL HAZARDS
4
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
The relevant Essential Clause(s)/sub-clause(s) of this EN Remarks/Notes
Requirements of EU Directive
2006/42/EC
1.3.1. Risk of loss of stability - not covered
1.3.2. Risk of break-up during 4.4, 4.5, 4.7
operation
1.3.3. Risks due to falling or ejected - not covered
objects
1.3.4. Risks due to surfaces, edges or - not covered
angles
1.3.6. Risks related to variations in
4.1, 4.6
operating conditions
1.3.7. Risks related to moving parts - not covered
1.3.8. Choice of protection against
risks arising from moving parts
1.3.8.1. Moving transmission parts - not covered
1.3.8.2. Moving parts involved in the - not covered
process
1.3.9. Risks of uncontrolled not covered
movements
1.4. REQUIRED CHARACTERISTICS
OF GUARDS AND PROTECTIVE
DEVICES
1.4.1. General requirements - not covered
1.4.2.1. Fixed guards - not covered
1.4.2.2. Interlocking movable guards - not covered
1.4.2.3. Adjustable guards restricting - not covered
access
1.4.3. Special requirements for - not covered
protective devices
1.5. RISKS DUE TO OTHER HAZARDS
1.5.2. Static electricity - not covered
1.5.3. Energy supply other than 4.4, 4.5, 4.7
electricity
1.5.4. Errors of fitting - not covered
1.5.5. Extreme temperatures - not covered
1.5.6. Fire 4.1, 4.7
1.5.8. Noise - not covered
1.5.9. Vibrations - not covered
1.5.11. External radiation - not covered
1.5.13. Emissions of hazardous 4.1, 4.4, 4.7
materials and substances
1.5.15. Risk of slipping, tripping or - not covered
5
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
The relevant Essential Clause(s)/sub-clause(s) of this EN Remarks/Notes
Requirements of EU Directive
2006/42/EC
falling
1.6. MAINTENANCE
1.6.1. Machinery maintenance - not covered
1.6.2. Access to operating positions - not covered
and servicing points
1.6.3. Isolation of energy sources - not covered
1.6.4. Operator intervention - not covered
1.6.5. Cleaning of internal parts - not covered
1.7. INFORMATION
1.7.1. Information and warnings on - not covered
the machinery
1.7.1.1. Information and information - not covered
devices
1.7.1.2. Warning devices - not covered
1.7.2. Warning of residual risks - not covered
1.7.3. Marking of machinery - not covered
1.7.4. Instructions - not covered
1.7.4.1. General principles for the - not covered
drafting of instructions
1.7.4.2. Contents of the instructions - not covered
1.7.4.3. Sales literature - not covered
2. SUPPLEMENTARY ESSENTIAL
HEALTH AND SAFETY
REQUIREMENTS FOR CERTAIN
CATEGORIES OF MACHINERY
2.2. PORTABLE HAND-HELD
AND/OR HAND-GUIDED
MACHINERY
2.2.1. General 4.2, 4.6
2.2.1.1. Instructions - not covered
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.
6
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SIST EN ISO 11806-2:2022
INTERNATIONAL ISO
STANDARD 11806-2
Second edition
2022-02
Corrected version
2022-04
Agricultural and forestry
machinery — Safety requirements
and testing for portable, hand-held,
powered brush-cutters and grass-
trimmers —
Part 2:
Machines for use with backpack
power unit
Matériel agricole et forestier — Exigences de sécurité et essais pour
débroussailleuses et coupe-herbe portatifs à moteur —
Partie 2: Machines pour utilisation avec source motrice portée à dos
Reference number
ISO 11806-2:2022(E)
© ISO 2022
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SIST EN ISO 11806-2:2022
ISO 11806-2:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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 2022 – All rights reserved
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SIST EN ISO 11806-2:2022
ISO 11806-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective measures . 3
4.1 General . 3
4.2 Distance to cutting attachment . 3
4.2.1 Requirements . 3
4.2.2 Verification . 3
4.3 Handgrip on backpack power unit . 4
4.3.1 Requirement . 4
4.3.2 Verification . 4
4.4 Harness for backpack power unit . 4
4.4.1 Requirements . 4
4.4.2 Verification . 4
4.5 Hydraulic and pneumatic pipes and hoses . 5
4.5.1 Requirements . 5
4.5.2 Verification . 5
4.6 Throttle control . 5
4.6.1 Position . 5
4.6.2 Operation . 5
4.6.3 Throttle control latch . 6
4.7 Fuel tank structural integrity . 7
4.7.1 Requirements . 7
4.7.2 Verification . 7
5 Information for use .7
Annex A (informative) List of significant hazards . 8
Annex B (normative) Fuel tank structural integrity . 9
Bibliography .10
iii
© ISO 2022 – All rights reserved
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SIST EN ISO 11806-2:2022
ISO 11806-2:2022(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 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 17, Manually portable (hand-held) powered lawn and garden equipment and
forest machinery, 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).
This second edition cancels and replaces the first edition (ISO 11806-2:2011), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the reference to ISO 11806-1 has been updated to the latest edition;
— the requirements for the harness for the backpack power unit have been reworded and amended;
— the th
...
SLOVENSKI STANDARD
SIST EN ISO 11806-2:2022
01-maj-2022
Nadomešča:
SIST EN ISO 11806-2:2012
Kmetijski in gozdarski stroji - Tehnične varnostne zahteve in preskus za prenosne,
ročno vodene kosilnice s prosto rezjo, opremljene z rezilno ploščo ali kosilno
nitko - 2. del: Naprave z nahrbtno prenosno pogonsko enoto (ISO 11806-2:2022)
Agricultural and forestry machinery - Safety requirements and testing for portable, hand-
held, powered brush-cutters and grass-trimmers - Part 2: Machines for use with
backpack power unit (ISO 11806-2:2022)
Land- und forstwirtschaftliche Maschinen - Sicherheitstechnische Anforderungen und
Prüfung für tragbare handgehaltene motorbetriebene Freischneider und Grastrimmer -
Teil 2: Maschinen für den Gebrauch mit rückentragbarer Antriebseinheit (ISO 11806-
2:2022)
Matériel agricole et forestier - Exigences de sécurité et essais pour débroussailleuses et
coupe-herbe portatifs à moteur - Partie 2: Machines pour utilisation avec source motrice
portée à dos (ISO 11806-2:2022)
Ta slovenski standard je istoveten z: EN ISO 11806-2:2022
ICS:
65.060.80 Gozdarska oprema Forestry equipment
SIST EN ISO 11806-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 11806-2:2022
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SIST EN ISO 11806-2:2022
EN ISO 11806-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 65.060.80 Supersedes EN ISO 11806-2:2011
English Version
Agricultural and forestry machinery - Safety requirements
and testing for portable, hand-held, powered brush-cutters
and grass-trimmers - Part 2: Machines for use with
backpack power unit (ISO 11806-2:2022)
Matériel agricole et forestier - Exigences de sécurité et Land- und forstwirtschaftliche Maschinen -
essais pour débroussailleuses et coupe-herbe portatifs Sicherheitstechnische Anforderungen und Prüfung für
à moteur - Partie 2: Machines pour utilisation avec tragbare handgehaltene motorbetriebene
source motrice portée à dos (ISO 11806-2:2022) Freischneider und Grastrimmer - Teil 2: Maschinen für
den Gebrauch mit rückentragbarer Antriebseinheit
(ISO 11806-2:2022)
This European Standard was approved by CEN on 24 August 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11806-2:2022 E
worldwide for CEN national Members.
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 4
2
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
European foreword
This document (EN ISO 11806-2:2022) 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 September 2022, and conflicting national standards
shall be withdrawn at the latest by September 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 supersedes EN ISO 11806-2:2011.
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) / Regulation(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 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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 11806-2:2022 has been approved by CEN as EN ISO 11806-2:2022 without any
modification.
3
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered
This European Standard has been prepared under 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 the Directive 2006/42/EC of the European
Parliament and of the Council of 17 May 2006 on machinery.
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 EN Remarks/Notes
Requirements of EU Directive
2006/42/EC
1. ESSENTIAL HEALTH AND SAFETY
REQUIREMENTS
1.1.2. Principles of safety integration 4.1
1.1.3. Materials and products 4.1,4.7
1.1.5. Design of machinery to 4.1,4.2, 4.3, 4.4
facilitate its handling
1.1.6. Ergonomics 4.2, 4.3, 4.4
1.1.7. Operating positions - not covered
1.2. CONTROL SYSTEMS
1.2.1. Safety and reliability of control 4.6
systems
1.2.2. Control devices 4.1, 4.6
1.2.3. Starting 4.1, 4.6
1.2.4. Stopping
1.2.4.1. Normal stop - not covered
1.2.4.2. Operational stop - not covered
1.2.4.4. Assembly of machinery - not covered
1.2.5. Selection of control or 4.6
operating modes
1.2.6. Failure of the power supply - not covered
1.3. PROTECTION AGAINST
MECHANICAL HAZARDS
4
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
The relevant Essential Clause(s)/sub-clause(s) of this EN Remarks/Notes
Requirements of EU Directive
2006/42/EC
1.3.1. Risk of loss of stability - not covered
1.3.2. Risk of break-up during 4.4, 4.5, 4.7
operation
1.3.3. Risks due to falling or ejected - not covered
objects
1.3.4. Risks due to surfaces, edges or - not covered
angles
1.3.6. Risks related to variations in
4.1, 4.6
operating conditions
1.3.7. Risks related to moving parts - not covered
1.3.8. Choice of protection against
risks arising from moving parts
1.3.8.1. Moving transmission parts - not covered
1.3.8.2. Moving parts involved in the - not covered
process
1.3.9. Risks of uncontrolled not covered
movements
1.4. REQUIRED CHARACTERISTICS
OF GUARDS AND PROTECTIVE
DEVICES
1.4.1. General requirements - not covered
1.4.2.1. Fixed guards - not covered
1.4.2.2. Interlocking movable guards - not covered
1.4.2.3. Adjustable guards restricting - not covered
access
1.4.3. Special requirements for - not covered
protective devices
1.5. RISKS DUE TO OTHER HAZARDS
1.5.2. Static electricity - not covered
1.5.3. Energy supply other than 4.4, 4.5, 4.7
electricity
1.5.4. Errors of fitting - not covered
1.5.5. Extreme temperatures - not covered
1.5.6. Fire 4.1, 4.7
1.5.8. Noise - not covered
1.5.9. Vibrations - not covered
1.5.11. External radiation - not covered
1.5.13. Emissions of hazardous 4.1, 4.4, 4.7
materials and substances
1.5.15. Risk of slipping, tripping or - not covered
5
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SIST EN ISO 11806-2:2022
EN ISO 11806-2:2022 (E)
The relevant Essential Clause(s)/sub-clause(s) of this EN Remarks/Notes
Requirements of EU Directive
2006/42/EC
falling
1.6. MAINTENANCE
1.6.1. Machinery maintenance - not covered
1.6.2. Access to operating positions - not covered
and servicing points
1.6.3. Isolation of energy sources - not covered
1.6.4. Operator intervention - not covered
1.6.5. Cleaning of internal parts - not covered
1.7. INFORMATION
1.7.1. Information and warnings on - not covered
the machinery
1.7.1.1. Information and information - not covered
devices
1.7.1.2. Warning devices - not covered
1.7.2. Warning of residual risks - not covered
1.7.3. Marking of machinery - not covered
1.7.4. Instructions - not covered
1.7.4.1. General principles for the - not covered
drafting of instructions
1.7.4.2. Contents of the instructions - not covered
1.7.4.3. Sales literature - not covered
2. SUPPLEMENTARY ESSENTIAL
HEALTH AND SAFETY
REQUIREMENTS FOR CERTAIN
CATEGORIES OF MACHINERY
2.2. PORTABLE HAND-HELD
AND/OR HAND-GUIDED
MACHINERY
2.2.1. General 4.2, 4.6
2.2.1.1. Instructions - not covered
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.
6
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SIST EN ISO 11806-2:2022
INTERNATIONAL ISO
STANDARD 11806-2
Second edition
2022-02
Agricultural and forestry
machinery — Safety requirements
and testing for portable, hand-held,
powered brush-cutters and grass-
trimmers —
Part 2:
Machines for use with backpack
power unit
Matériel agricole et forestier — Exigences de sécurité et essais pour
débroussailleuses et coupe-herbe portatifs à moteur —
Partie 2: Machines pour utilisation avec source motrice portée à dos
Reference number
ISO 11806-2:2022(E)
© ISO 2022
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SIST EN ISO 11806-2:2022
ISO 11806-2:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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 2022 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 11806-2:2022
ISO 11806-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective measures . 3
4.1 General . 3
4.2 Distance to cutting attachment . 3
4.2.1 Requirements . 3
4.2.2 Verification . 3
4.3 Handgrip on backpack power unit . 4
4.3.1 Requirement . 4
4.3.2 Verification . 4
4.4 Harness for backpack power unit . 4
4.4.1 Requirements . 4
4.4.2 Verification . 4
4.5 Hydraulic and pneumatic pipes and hoses . 5
4.5.1 Requirements . 5
4.5.2 Verification . 5
4.6 Throttle control . 5
4.6.1 Position . 5
4.6.2 Operation . 5
4.6.3 Throttle control latch . 6
4.7 Fuel tank structural integrity . 7
4.7.1 Requirements . 7
4.7.2 Verification . 7
5 Information for use .7
Annex A (informative) List of significant hazards . 8
Annex B (normative) Fuel tank structural integrity . 9
Bibliography .10
iii
© ISO 2022 – All rights reserved
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SIST EN ISO 11806-2:2022
ISO 11806-2:2022(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 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 17, Manually portable (hand-held) powered lawn and garden equipment and
forest machinery, 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).
This second edition cancels and replaces the first edition (ISO 11806-2:2011), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the reference to ISO 11806-1:2021 has been updated to the latest edition;
— the requirements for the harness for the backpack power unit have been reworded and amended;
— the throttle control requirements for the backpack power unit have been added;
— the requirements for the fuel
...
SLOVENSKI STANDARD
oSIST prEN ISO 11806-2:2020
01-september-2020
Kmetijski in gozdarski stroji - Tehnične varnostne zahteve in preskus za prenosne,
ročno vodene kosilnice s prosto rezjo, opremljene z rezilno ploščo ali kosilno
nitko - 2. del: Naprave z nahrbtno prenosno pogonsko enoto (ISO/DIS 11806-
2:2020)
Agricultural and forestry machinery - Safety requirements and testing for portable, hand-
held, powered brush-cutters and grass-trimmers - Part 2: Machines for use with back-
pack power unit (ISO/DIS 11806-2:2020)
Land- und forstwirtschaftliche Maschinen - Sicherheitstechnische Anforderungen und
Prüfung für tragbare handgehaltene motorbetriebene Freischneider und Grastrimmer -
Teil 2: Maschinen für den Gebrauch mit rückentragbarer Antriebseinheit (ISO/DIS 11806
-2:2020)
Matériel agricole et forestier - Exigences de sécurité et essais pour débroussailleuses et
coupe-herbe portatifs à moteur - Partie 2: Machines pour utilisation avec source motrice
portée à dos (ISO/DIS 11806-2:2020)
Ta slovenski standard je istoveten z: prEN ISO 11806-2
ICS:
65.060.80 Gozdarska oprema Forestry equipment
oSIST prEN ISO 11806-2:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 11806-2:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 11806-2:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11806-2
ISO/TC 23/SC 17 Secretariat: SIS
Voting begins on: Voting terminates on:
2020-06-18 2020-09-10
Agricultural and forestry machinery — Safety
requirements and testing for portable, hand-held, powered
brush-cutters and grass-trimmers —
Part 2:
Machines for use with back-pack power unit
Matériel agricole et forestier — Exigences de sécurité et essais pour débroussailleuses et coupe-herbe
portatifs à moteur —
Partie 2: Machines pour utilisation avec source motrice portée à dos
ICS: 65.060.80
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/DIS 11806-2:2020(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 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective measures . 3
4.1 General . 3
4.2 Distance to cutting attachment . 3
4.2.1 Requirements . 3
4.2.2 Verification . 3
4.3 Handgrip on back-pack power unit . 4
4.3.1 Requirement . 4
4.3.2 Verification . 4
4.4 Harness for back-pack power unit . 4
4.4.1 Requirements . 4
4.4.2 Verification . 5
4.5 Hydraulic and pneumatic pipes and hoses . 5
4.5.1 Requirements . 5
4.5.2 Verification . 5
5 Information for use . 5
Annex A (informative) List of significant hazards. 6
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 7
Bibliography .13
© ISO 2020 – All rights reserved iii
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oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(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 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 17, Manually portable forest machinery.
This third edition of ISO 11806-2 cancels and replaces ISO 11806-2:2020, of which it is also a technical
revision.
The main changes compared to the previous edition are as follows:
— reference to the updated version of ISO 11806-1
— requirements for the harness for the back-pack power unit reworded and amended
A list of all parts in the ISO 11806 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 2020 – All rights reserved
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oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or
type-B standards, the requirements of this type-C standard take precedence over the requirements of
the other standards for machines that have been designed and built according to the requirements of
this type-C standard.
© ISO 2020 – All rights reserved v
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oSIST prEN ISO 11806-2:2020
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oSIST prEN ISO 11806-2:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 11806-2:2020(E)
Agricultural and forestry machinery — Safety
requirements and testing for portable, hand-held, powered
brush-cutters and grass-trimmers —
Part 2:
Machines for use with back-pack power unit
1 Scope
This part of ISO 11806 gives safety requirements and measures for their verification for the design
and construction of portable, hand-held, powered brush-cutters and grass-trimmers with a back-pack-
mounted combustion engine power source and mechanical power transmission between the power
source and the cutting attachment. Methods for the elimination or reduction of hazards arising from
the use of these machines and the type of information on safe working practices to be provided by the
manufacturer are specified.
This part of ISO 11806, taken together with the relevant clauses of ISO 11806-1 (see 4.1), deals with
all significant hazards, hazardous situations and hazardous events, with the exception of whole-body
vibration from the back-pack power unit, relevant to these machines when they are used as intended
and under conditions of misuse which are reasonably foreseeable by the manufacturer.
NOTE 1 A standardized test procedure for measuring whole-body vibration from the back-pack power unit is
presently not available.
NOTE 2 See Annex A, together with Annex A in ISO 11806-1:2020, for a list of significant hazards.
This part of ISO 11806 is applicable to portable, hand-held, powered brush-cutters and grass-trimmers
manufactured after its date of publication.
This part of ISO 11806 is not applicable to machines equipped with metallic cutting attachments
consisting of more than one piece, e.g. pivoting chains or flail blades.
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 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components
ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their
components
ISO 11806-1:2020, Agricultural and forestry machinery — Safety requirements and testing for portable,
hand- held, powered brush-cutters and grass-trimmers — Part 1: Machines fitted with an integral
combustion engine
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13857:2019, Safety of machinery — Safety distances to prevent hazard zones being reached by upper
and lower limbs
© ISO 2020 – All rights reserved 1
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oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11806-1 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 http:// www .electropedia .org/
Note 1 to entry Figure 1 provides an example of a brush-cutter with a back-pack power unit falling within the
scope of this part of ISO 11806.
3.1
appliance
assembly of drive shaft tube, cutting attachment with its guard and handles
3.2
machine
complete brush-cutter (or grass-trimmer), including back-pack power unit and appliance
Key
1 harness
2 back-pack power unit
3 barrier
4 blade
5 cutting-attachment guard
6 drive-shaft tube
7 front handle
8 rear handle
Figure 1 — Example of a brush-cutter with back-pack power unit
2 © ISO 2020 – All rights reserved
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oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(E)
4 Safety requirements and/or protective measures
4.1 General
Machines 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 relevant but not
significant hazards which are not dealt with by this part of ISO 11806.
Machines shall comply with ISO 11806-1:2020, Clause 4, except for 4.5.
The safe operation of a brush-cutter and a grass-trimmer also depends on the safe environment
associated with the use of personal protective equipment (PPE), such as gloves, slip-resistance
footwear, and leg, eye and hearing protective equipment, as well as safe working procedures (see
ISO 11806-1:2020, 5.1).
If a grass-trimmer can be converted to a brush-cutter then the converted machine shall comply with
requirements for a brush-cutter and vice versa.
Except where otherwise specified in this part of ISO 11806, the safety distances specified in
ISO 13857:2019,
4.2.4.1 and 4.2.4.3, shall be met.
4.2 Distance to cutting attachment
4.2.1 Requirements
Machines with front and rear handles shall have a minimum straight-line distance of 1 200 mm from
the mid- point of the rear handle to the nearest unguarded point of the cutting attachment (point A in
Figure 2). Point A is the intersection between the plane perpendicular to the cutting path and the side-
edge of the cutting- attachment guard.
This minimum distance shall apply to all recommended cutting attachments.
4.2.2 Verification
The distance shall be verified by measurement.
© ISO 2020 – All rights reserved 3
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oSIST prEN ISO 11806-2:2020
ISO/DIS 11806-2:2020(E)
Dimensions in millimetres
Key
1 cutting attachment
2 guard
3 front handle
4 rear handl
...
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