SIST EN ISO 11680-1:2012
(Main)Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 1: Machines fitted with an integral combustion engine (ISO 11680-1:201
Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 1: Machines fitted with an integral combustion engine (ISO 11680-1:201
This part of ISO 11680 specifies safety requirements and their verification for the design and construction of portable hand-held pole-mounted powered pruners having an integral combustion engine as a power source and using a drive shaft, to transmit power to the cutting attachment. The cutting attachments covered are saw chains, reciprocating and circular saw blades. This part of ISO 11680 describes methods for the elimination or reduction of hazards arising from their use. In addition it specifies the type of information on safe working practices to be provided by the manufacturer. It deals with all significant hazards except for electric shock from contact with overhead electric lines apart from warnings and advice for instruction handbook contents. Environmental aspects, except for noise, have not been considered in this standard.
Forstmaschinen - Sicherheitstechnische Anforderungen und Prüfung für motorbetriebene Hochentaster - Teil 1: Geräte mit integriertem Verbrennungsmotor (ISO 11680-1:201
Dieser Teil der ISO 11680 gibt sicherheitstechnische Anforderungen und Maßnahmen zur Feststellung deren
Übereinstimmung für die Gestaltung und Konstruktion von tragbaren, Hand gehaltenen Hochentastern mit
integriertem Verbrennungsmotor als Antrieb, die mit einer Antriebswelle zur Kraftübertragung auf die
Schneidgarnitur ausgestattet sind, welche aus einer Sägekette, einem sich hin und her bewegenden
Sägeblatt oder einem Kreissägeblatt mit einem maximalen Außendurchmesser von 205 mm besteht, an.
Methoden zur Vermeidung oder Verminderung der sich aus dem Gebrauch ergebenden Gefährdungen dieser
Maschinen sowie Informationen über sicheres Arbeiten, die vom Hersteller zur Verfügung zu stellen sind,
werden festgelegt.
Dieser Teil der ISO 11680 behandelt alle signifikanten Gefährdungen, Gefährdungssituationen oder
Gefährdungsereignisse für diese Maschinen, mit Ausnahme elektrischer Stöße durch oberirdische
Starkstromleitungen (abgesehen von Warnhinweisen und Hinweisen in der Betriebsanleitung), sofern sie zu
dem vorgesehenen Zweck und bei vernünftigerweise durch den Hersteller vorhersehbarem Missbrauch
eingesetzt werden.
ANMERKUNG Siehe Anhang A zur Liste der signifikanten Gefährdungen.
Dieser Teil der ISO 11680 gilt für tragbare, Hand gehaltene, motorbetriebene Hochentaster, die nach dem
Veröffentlichungsdatum dieser Norm hergestellt worden sind.
Matériel forestier - Exigences de sécurité et essais pour les perches élagueuses à moteur - Partie 1: Machines équipées d'un moteur à combustion interne intégré (ISO 11680-1:201
L'ISO 11680-1:2011 spécifie les exigences de sécurité et les mesures pour leur vérification, pour la conception et la construction des perches élagueuses à moteur portatives, tenues à la main, équipées d'un moteur à combustion interne intégré comme source motrice et fonctionnant avec un arbre de transmission pour alimenter le dispositif de coupe consistant en une chaîne de scie, une lame alternative ou une lame de scie circulaire avec un diamètre extérieur maximal de 205 mm. Elle spécifie également des méthodes pour éliminer ou réduire les phénomènes dangereux inhérents à l'utilisation de ces machines, ainsi que le type d'informations sur les pratiques d'utilisation sûres à fournir par le fabricant.
L'ISO 11680-1:2011 traite de tous les phénomènes dangereux significatifs, situations dangereuses et événements dangereux pertinents pour ces machines lorsqu'elles sont utilisées normalement et dans des conditions de mauvais usage raisonnablement prévisibles, à l'exception du choc électrique dû au contact avec des lignes électriques aériennes (en dehors des avertissements et conseils à inclure dans la notice d'instructions).
Gozdarski stroji - Zahteve za varnost in preskušanje motornih žag za obvejevanje z drogom - 1. del: Stroji z integriranim motorjem z notranjim zgorevanjem (ISO 11680-1:201
Ta del standarda ISO 11680 določa varnostne zahteve in ukrepe za njihovo preverjanje za zasnovo in konstrukcijo prenosnih, ročnih motornih žag za obvejevanje z drogom, ki imajo motorje z notranjim izgorevanjem in uporabljajo pogonsko gred za prenos moči do nastavka za rezanje, ki ga sestavlja veriga žage ali premočrtno oziroma krožno rezilo žage z največjim zunanjim premerom 205 mm. 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 del standarda ISO 11680 opisuje vsa večja tveganja, nevarne situacije ali nevarne dogodke v zvezi s temi stroji, razen električnega udara zaradi stika z nadzemnimi električnimi kabli (vsebuje le opozorila in nasvete, ki morajo biti vključeni v priročnik z navodili),kadar se uporabljajo v skladu z njihovim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec. Ta del standarda ISO 11680 se uporablja za prenosne, ročne motorne žage za obvejevanje z drogom, izdelane po datumu njegove izdaje.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11680-1:2012
01-marec-2012
1DGRPHãþD
SIST EN ISO 11680-1:2001
SIST EN ISO 11680-1:2001/AC:2004
SIST EN ISO 11680-1:2009
Gozdarski stroji - Zahteve za varnost in preskušanje motornih žag za obvejevanje z
drogom - 1. del: Stroji z integriranim motorjem z notranjim zgorevanjem (ISO 11680
-1:201
Machinery for forestry - Safety requirements and testing for pole-mounted powered
pruners - Part 1: Machines fitted with an integral combustion engine (ISO 11680-1:201
Forstmaschinen - Sicherheitstechnische Anforderungen und Prüfung für motorbetriebene
Hochentaster - Teil 1: Geräte mit integriertem Verbrennungsmotor (ISO 11680-1:201
Matériel forestier - Exigences de sécurité et essais pour les perches élagueuses à
moteur - Partie 1: Machines équipées d'un moteur à combustion interne intégré (ISO
11680-1:201
Ta slovenski standard je istoveten z: EN ISO 11680-1:2011
ICS:
65.060.80 Gozdarska oprema Forestry equipment
SIST EN ISO 11680-1:2012 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 11680-1:2012
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SIST EN ISO 11680-1:2012
EUROPEAN STANDARD
EN ISO 11680-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2011
ICS 65.060.80 Supersedes EN ISO 11680-1:2008
English Version
Machinery for forestry - Safety requirements and testing for pole-
mounted powered pruners - Part 1: Machines fitted with an
integral combustion engine (ISO 11680-1:2011)
Matériel forestier - Exigences de sécurité et essais pour les Forstmaschinen - Sicherheitstechnische Anforderungen
perches élagueuses à moteur - Partie 1: Machines und Prüfung für motorbetriebene Hochentaster - Teil 1:
équipées d'un moteur à combustion interne intégré (ISO Geräte mit Antrieb durch integrierten Verbrennungsmotor
11680-1:2011) (ISO 11680-1:2011)
This European Standard was approved by CEN on 30 November 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11680-1:2011: E
worldwide for CEN national Members.
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SIST EN ISO 11680-1:2012
EN ISO 11680-1:2011 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC .4
2
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SIST EN ISO 11680-1:2012
EN ISO 11680-1:2011 (E)
Foreword
This document (EN ISO 11680-1:2011) 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 June 2012, and conflicting national standards shall be withdrawn at
the latest by June 2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11680-1:2008.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 11680-1:2011 has been approved by CEN as EN ISO 11680-1:2011 without any modification.
3
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SIST EN ISO 11680-1:2012
EN ISO 11680-1:2011 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide one means of conforming to Essential Requirements of
the New Approach Directive 2006/42/EC on machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the normative
clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity
with the relevant Essential Requirements of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.
4
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SIST EN ISO 11680-1:2012
INTERNATIONAL ISO
STANDARD 11680‑1
Second edition
2011-12-01
Machinery for forestry — Safety
requirements and testing for
pole‑mounted powered pruners —
Part 1:
Machines fitted with an integral
combustion engine
Matériel forestier — Exigences de sécurité et essais pour les perches
élagueuses à moteur —
Partie 1: Machines équipées d’un moteur à combustion interne intégré
Reference number
ISO 11680-1:2011(E)
©
ISO 2011
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(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 . 2
4.1 General . 2
4.2 Hand‑grips . 2
4.3 Harness . 3
4.4 Cutting attachment. 4
4.5 Transport cover for cutting attachment . 5
4.6 Distance to cutting attachment . 5
4.7 Engine starting device . 6
4.8 Engine stopping device . 6
4.9 Throttle control . 6
4.10 Clutch . 7
4.11 Tanks . 7
4.12 Protection against contact with parts under high voltage . 8
4.13 Protection against contact with hot parts . 8
4.14 Exhaust gases . 9
4.15 Vibration . 9
4.16 Noise .10
4.17 Electromagnetic immunity .10
5 Information for use .10
5.1 Instruction handbook .10
5.2 Marking .13
5.3 Warnings .14
5.4 Test of labels .14
Annex A (informative) List of significant hazards .16
Bibliography .18
© ISO 2011 – All rights reserved iii
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11680-1 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and
forestry, Subcommittee SC 17, Manually portable forest machinery.
This second edition cancels and replaces the first edition (ISO 11680-1:2000), which has been technically
revised to reflect the state of the art.
ISO 11680 consists of the following parts, under the general title Machinery for forestry — Safety requirements
and testing for pole-mounted powered pruners:
— Part 1: Machines fitted with an integral combustion engine
— Part 2: Machines for use with back-pack power source
iv © ISO 2011 – All rights reserved
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(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 2011 – All rights reserved v
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SIST EN ISO 11680-1:2012
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SIST EN ISO 11680-1:2012
INTERNATIONAL STANDARD ISO 11680‑1:2011(E)
Machinery for forestry — Safety requirements and testing for
pole‑mounted powered pruners —
Part 1:
Machines fitted with an integral combustion engine
1 Scope
This part of ISO 11680 gives safety requirements and measures for their verification for the design and
construction of portable, hand-held, pole-mounted powered pruners having an integral combustion engine as
their power unit and using a drive shaft to transmit power to a cutting attachment consisting of a saw chain or
a reciprocating or circular saw blade with a 205 mm maximum outside diameter. 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 11680 deals with all significant hazards, hazardous situations or hazardous events with the
exception of electric shock from contact with overhead electric lines (apart from warnings and advice for
inclusion in the instruction handbook), relevant to these machines when they are used as intended and under
conditions of misuse which are reasonably foreseeable by the manufacturer.
NOTE See Annex A for a list of significant hazards.
This part of ISO 11680 is applicable to portable, hand-held, pole-mounted powered pruners manufactured after
its date of publication.
2 Normative references
The following referenced documents are indispensable for the application 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 6531, Machinery for forestry — Portable chain saws — Vocabulary
ISO 7112:2008, Machinery for forestry — Portable brush-cutters and grass-trimmers — Vocabulary
ISO 7113:1999, Portable hand-held forestry machines — Cutting attachments for brush cutters — Single-piece
metal blades
ISO 8893, Forestry machinery — Portable brush cutters and grass-trimmers — Engine performance and fuel
consumption
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper
and lower limbs
ISO 14982:1998, Agricultural and forestry machinery — Electromagnetic compatibility — Test methods and
acceptance criteria
ISO 22867, Forestry and gardening machinery — Vibration test code for portable hand-held machines with
internal combustion engine — Vibration at the handles
© ISO 2011 – All rights reserved 1
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
ISO 22868, Forestry and gardening machinery — Noise test code for portable hand-held machines with internal
combustion engine — Engineering method (Grade 2 accuracy)
IEC 60745-1:2006, Hand-held motor-operated electric tools — Safety — Part 1: General requirements
3 Terms and definitions
For the purpose of this document, the terms and definitions given in ISO 6531, ISO 7112 and ISO 12100 and
the following apply.
3.1
pole‑mounted powered pruner
machine whose power source is attached via a long drive-shaft tube (pole) to a cutting attachment, designed
to enable an operator to cut branches from a distance
NOTE See Figure 1 for an example of a pole-mounted powered pruner with integral combustion engine and a saw-
chain cutting attachment within the Scope of this part of ISO 11680.
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 11680.
The safe operation of a pole-mounted powered pruner also depends on the safe environment associated with
the use of personal protective equipment (PPE), such as gloves, slip-resistant footwear, and eye, hearing and
head protective equipment, as well as safe working procedures (see 5.1).
Except where otherwise specified in this part of ISO 11680, the safety distances specified in ISO 13857:2008,
4.2.4.1 and 4.2.4.3, shall be met.
4.2 Hand‑grips
4.2.1 Requirements
The machine shall have a hand-grip for each hand. The shape and surface of the hand-grip shall be designed
so as to provide the necessary sureness of grip, regardless of whether or not the operator wears gloves. If
the hand-grip nearest the cutting attachment is an integral part of the drive-shaft tube, the diameter shall be
between 20 mm and 50 mm. The hand-grip length shall be at least 100 mm.
The gripping length of a bail or closed hand-grip shall comprise any length that is straight or curved at a radius
greater than 100 mm together with any blend radius, but not more than 10 mm, at one or both ends of the
gripping surface.
4.2.2 Verification
The design and dimensions shall be verified by inspection and measurement.
2 © ISO 2011 – All rights reserved
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
Key
1 power unit
2 rear hand-grip
3 harness
4 front hand-grip
5 shaft tube
6 cutting attachment
Figure 1 — Example of pole‑mounted powered pruner with integral combustion engine
and saw‑chain cutting attachment
4.3 Harness
4.3.1 Requirements
All machines shall be equipped with a harness to be worn by the operator. The harness is primarily for supporting
the machine during movement between cutting tasks and for reducing the risk of unintentional contact with the
cutting attachment. The harness shall be adjustable to the size of the operator.
A harness shall either be provided with a quick-release mechanism or the design shall be such that the harness
can be removed quickly in the event of an emergency. Any such quick-release mechanism for emergency
release shall enable rapid release of the machine from the harness or harness from operator.
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
If a quick-release mechanism is provided, it shall be possible to open it under load and release the machine
using only one hand.
4.3.2 Verification
The harness, its functionality and its adjustment shall be verified by inspection. The quick-release mechanism
shall be checked by a functional test carried out by a person wearing the harness and with a vertical load of
three times the dry weight of the machine acting on the suspension point.
4.4 Cutting attachment
4.4.1 Saw‑chain cutting attachment
4.4.1.1 Requirements
Saw-chain cutting attachments shall be provided with a means of adjustment to achieve chain tension in
accordance with the instruction handbook. The method of ensuring chain tension shall be described in the
instruction handbook.
Means shall also be provided to lubricate the saw chain, either automatically or manually. If a manual oiler is
provided, it shall be located so that it can be operated while the machine is held by both hand-grips.
4.4.1.2 Verification
Means for adjustment and lubrication of the saw chain shall be verified by inspection and functional testing.
4.4.2 Circular saw‑blade cutting attachment
4.4.2.1 Requirements
The circular saw blade shall be a single-piece blade in accordance with the specifications for blade surface
quality and blade material given in ISO 7113.
The circular saw blade shall be secured so as to prevent relative motion between it and the retainer or the shaft
on which it is mounted. The method for securing the saw blade shall also prevent its loosening during use.
These requirements are applicable to all saw blades recommended by the instruction handbook.
4.4.2.2 Verification
The method of attachment shall be verified by inspection and the following test procedure.
a) Install the cutting attachment in accordance with the instruction handbook.
b) Lock the power transmission shaft.
c) Apply to the blade a rotational torque, M, in newton metres (N ⋅ m):
M = 0,4 × V × k
where
3
V is the engine displacement, in cubic centimetres (cm);
k is the gear ratio (engine/blade rotational frequency).
d) Conduct the test five times in the direction of normal rotation, then five times in the opposite direction.
Blade surface quality and blade material shall be verified in accordance with ISO 7113.
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
4.4.3 Cutting attachment strength
4.4.3.1 Requirements
Recommended cutting attachments and their fixing systems and guards shall not break or crack after impact
with a hard surface when subjected to the functional test specified in 4.4.3.2.
4.4.3.2 Verification
Suspend the machine freely from a position 150 mm ± 2 mm in front of the middle of the rear handle and at a
height of 775 mm ± 2 mm above the test surface.
Allow the machine to swing freely once around the point of suspension from a start position in which the
machine is at an angle of 45° ± 2° to the horizontal. The test surface with which the machine impacts shall be
flat and of concrete or similar.
If, after impact, no cracks can be detected in the cutting attachment or its fixing or guard by means of visual
inspection, start the engine and run at an over-speed of 133 % of the maximum power speed or maximum
engine speed — whichever is the lesser — for 60 s ± 2 s. Control the engine speed using the throttle trigger. If
the saw blade or guide bar is so bent as to be unusable, replace it before the over-speed run.
Impact strength is considered to have been successfully verified if no parts of the cutting attachment have
been ejected and no cracks can be detected during visual inspection. Failure in the drive mechanism is not
considered as being failure of the test.
Single-piece metal blades shall also be verified by testing in accordance with ISO 7113:1999, Clause 5.
4.5 Transport cover for cutting attachment
4.5.1 Requirements
The machine shall be provided with a transport cover, so designed that it remains attached to the cutting
attachment during transport and storage.
4.5.2 Verification
The attachment of the transport cover to the cutting attachment shall be verified by inspection when holding
the machine in any direction.
4.6 Distance to cutting attachment
4.6.1 Requirements
The distance from the rear of the throttle trigger to the nearest unguarded point of the cutting attachment shall
be at least 1 250 mm, with the cutting attachment adjusted to its position nearest the operator.
If the location of the throttle trigger is adjustable, any adjustment below the distance of 1 250 mm shall be
prevented by design.
This minimum distance from the rear of the throttle trigger to the nearest unguarded point of the cutting
attachment shall apply to all cutting attachments recommended by the manufacturer.
A fixed obstacle (e.g. collar on the shaft tube) shall be provided close to the cutting attachment to warn the
operator that his hand is getting close to the cutting device. The distance from the rear of the fixed obstacle
to the nearest unguarded point of the cutting attachment shall be at least 120 mm, measured as a chain
measurement.
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
4.6.2 Verification
Means for adjustment, the presence of the fixed obstacle and the distance from the throttle trigger and fixed
obstacle to the cutting attachment shall be verified by inspection and measurement.
4.7 Engine starting device
4.7.1 Requirements
The engine starting device shall be a self-contained, battery-powered electric starter and/or a manual starter
where the actuator is permanently attached to the machine.
Pole-mounted powered pruners with a manual starter shall have a recoil device for the rope.
Two or more separate and dissimilar actions shall be required to activate the electrical starting device.
4.7.2 Verification
The means of starting the engine shall be verified by inspection and functional testing.
4.8 Engine stopping device
4.8.1 Requirements
The machine shall be fitted with an engine stopping device by which the engine can be brought to a final stop
and which does not depend on sustained manual effort for its operation. The control for this device shall be so
positioned that it can be operated while the machine is held with both hands by an operator wearing gloves.
The colour of the control shall clearly contrast with the background.
4.8.2 Verification
The correct functioning of the engine stopping device shall be verified by inspection while the machine is being
operated. The location of the control shall also be verified by inspection.
4.9 Throttle control
4.9.1 Position
4.9.1.1 Requirements
The throttle trigger shall be positioned so that it can be pressed and released with a gloved hand while both
hand-grips are being held.
4.9.1.2 Verification
The position shall be verified by inspection and functional testing.
4.9.2 Operation
4.9.2.1 Requirements
The machine shall be provided with a throttle trigger that, when released, automatically reverts to the idling
position unless a throttle lock to aid starting is engaged (see 4.9.3). The throttle trigger shall be retained in the
idling position by the automatic engagement of a throttle trigger lock-out.
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SIST EN ISO 11680-1:2012
ISO 11680‑1:2011(E)
After the starting procedure has been completed, activation of the throttle trigger to increase the engine speed
to a point at which the cutting attachment will start to move shall only be possible with the throttle trigger
lock-out disengaged.
The starting procedure is considered to have been completed wh
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