SIST EN ISO 11680:2025

SLOVENSKI STANDARD
01-november-2025
Nadomešča:
SIST EN ISO 11680-1:2022
SIST EN ISO 11680-2:2022
Gozdarski stroji - Zahteve za varnost in preskušanje prenosnih motornih žag za
obvejevanje z drogom (ISO 11680:2025)
Machinery for forestry - Safety requirements and testing for portable pole mounted
powered pruners (ISO 11680:2025)
Forstmaschinen - Sicherheitstechnische Anforderungen und Prüfung für motorbetriebene
Hochentaster (ISO 11680:2025)
Matériel forestier - Exigences de sécurité et essais pour les perches élagueuses à
moteur (ISO 11680:2025)
Ta slovenski standard je istoveten z: EN ISO 11680:2025
ICS:
65.060.80 Gozdarska oprema Forestry equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11680
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2025
EUROPÄISCHE NORM
ICS 65.060.80 Supersedes EN ISO 11680-1:2021, EN ISO 11680-
2:2021
English Version
Machinery for forestry - Safety requirements and testing
for portable pole mounted powered pruners (ISO
11680:2025)
Matériel forestier - Exigences de sécurité et essais pour Forstmaschinen - Sicherheitstechnische
les perches élagueuses à moteur (ISO 11680:2025) Anforderungen und Prüfung für motorbetriebene
Hochentaster (ISO 11680:2025)
This European Standard was approved by CEN on 6 June 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 11680:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 4

European foreword
This document (EN ISO 11680:2025) 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 March 2026, and conflicting national standards shall
be withdrawn at the latest by March 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 supersedes EN ISO 11680-1:2021 and EN ISO 11680-2:2021.
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 11680:2025 has been approved by CEN as EN ISO 11680:2025 without any modification.

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 a Commission’s standardization request "M/396
Mandate to CEN and CENELEC for standardisation in the field of machinery" to provide one voluntary
means of conforming to essential requirements of the Directive 2006/42/EC of the European
Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC
(recast).
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard
and Annex I of Directive 2006/42/EC
The relevant Essential
Clause(s)/sub-clause(s)
Requirements of Directive Remarks/Notes
of this EN
2006/42/EC
1. ESSENTIAL HEALTH AND
SAFETY REQUIREMENTS
1.1.2. Principles of safety 4; 5
integration
1.1.3. Materials and products 4.12
1.1.5. Design of machinery to 4.3; 4.4
facilitate its handling
1.1.6. Ergonomics 4.3; 4.4
1.1.7. Operating positions 4.15; 5.1; 5.2
1.2. CONTROL SYSTEMS
1.2.1. Safety and reliability of 4.8; 4.9; 4.10; 4.11
control systems
1.2.2. Control devices 4.8; 4.9; 4.10; 5.2
1.2.3. Starting 4.8; 4.10
1.2.4. Stopping
1.2.4.1. Normal stop 4.9
1.3. PROTECTION AGAINST
The relevant Essential
Clause(s)/sub-clause(s)
Requirements of Directive Remarks/Notes
of this EN
2006/42/EC
MECHANICAL HAZARDS
1.3.1. Risk of loss of stability - not covered
1.3.2. Risk of break-up during 4.5; 4.19; 4.20; 4.21; 5.1
operation
1.3.3. Risks due to falling or - not covered
ejected objects
1.3.4. Risks due to surfaces, 4.6
edges or angles
1.3.6. Risks related to variations 4.10
in operating conditions
1.3.7. Risks related to moving 4.2; 4.7; 4.11
parts
1.3.8. Choice of protection
against risks arising from
moving parts
1.3.8.1. Moving transmission 4.2
parts
1.3.9. Risks of uncontrolled 4.10; 4.11
movements
1.4. REQUIRED
CHARACTERISTICS OF GUARDS
AND PROTECTIVE DEVICES
1.4.2.1. Fixed guards - not covered
1.4.2.2. Interlocking movable - not covered
guards
1.4.2.3. Adjustable guards - not covered
restricting access
1.4.3. Special requirements for 4.7; 4.10.2.1; 4.11
protective devices
1.5. RISKS DUE TO OTHER
HAZARDS
1.5.2. Static electricity - not covered
1.5.3. Energy supply other than 4.12; 4.19; 4.20; 4.21
electricity
1.5.4. Errors of fitting 4.12.1
1.5.5. Extreme temperatures 4.14
The relevant Essential
Clause(s)/sub-clause(s)
Requirements of Directive Remarks/Notes
of this EN
2006/42/EC
1.5.6. Fire 4.12; 4.19; 4.20; 4.21; 5.1
1.5.8. Noise 4.17; 5.1.2
1.5.9. Vibrations  not covered
1.5.11. External radiation 4.18
1.5.13. Emissions of hazardous 4.12; 4.15; 4.21
materials and substances
1.5.15. Risk of slipping, tripping - not covered
or falling
1.6. MAINTENANCE
1.6.1. Machinery maintenance 4.5.1; 4.14; 5.1
1.6.2. Access to operating - not covered
positions and servicing points
1.6.3. Isolation of energy sources 4.9

1.6.5. Cleaning of internal parts - not covered
1.7. INFORMATION
1.7.1. Information and warnings 5.2
on the machinery
1.7.1.1. Information and 5.2
information devices
1.7.1.2. Warning devices - not covered
1.7.2. Warning of residual risks 5.1; 5.2
1.7.3. Marking of machinery 5.2
1.7.4. Instructions 5.1
1.7.4.1. General principles for 5.1
the drafting of instructions
1.7.4.2. Contents of the 5.1
instructions
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 4.3; 4.9; 4.10; 4.11
The relevant Essential
Clause(s)/sub-clause(s)
Requirements of Directive Remarks/Notes
of this EN
2006/42/EC
2.2.1.1. Instructions 5.1
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 11680
First edition
Machinery for forestry — Safety
2025-06
requirements and testing for portable
pole mounted powered pruners
Matériel forestier — Exigences de sécurité et essais pour les
perches élagueuses à moteur
Reference number
ISO 11680:2025(en) © ISO 2025
ISO 11680:2025(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 11680:2025(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective measures . 4
4.1 General .4
4.2 Protection against contact with power driven components .4
4.2.1 Requirements .4
4.2.2 Verification .4
4.3 Handles and hand grip .5
4.3.1 Requirements for handles .5
4.3.2 Requirements for hand grip for machines with a backpack power unit .5
4.3.3 Verification .5
4.4 Harness . .5
4.4.1 Requirements .5
4.4.2 Verification .6
4.5 Cutting attachment .7
4.5.1 Saw-chain cutting attachment .7
4.5.2 Circular saw blade cutting attachment .7
4.5.3 Cutting attachment strength .8
4.6 Cutting attachment cover .10
4.6.1 Requirements .10
4.6.2 Verification .10
4.7 Distance to cutting attachment .10
4.7.1 Requirements .10
4.7.2 Verification .11
4.8 Engine starting device .11
4.8.1 Requirements .11
4.8.2 Verification .11
4.9 Engine stopping device .11
4.9.1 Requirements .11
4.9.2 Verification . 12
4.10 Throttle control . 12
4.10.1 Throttle trigger . 12
4.10.2 Operation . 12
4.10.3 Throttle control latch . 13
4.11 Clutch . 13
4.11.1 Requirements . 13
4.11.2 Verification . 13
4.12 Tanks .14
4.12.1 Requirements .14
4.12.2 Verification .14
4.13 Protection against contact with parts of the machine under high voltage .14
4.13.1 Requirements .14
4.13.2 Verification .14
4.14 Protection against contact with hot parts .14
4.14.1 Requirements .14
4.14.2 Verification . 15
4.15 Exhaust gases . 15
4.15.1 Requirements . 15
4.15.2 Verification .16
4.16 Vibration .16
4.16.1 Reduction by design at source and by protective measures .16

iii
ISO 11680:2025(en)
4.16.2 Vibration measurement .16
4.17 Noise .16
4.17.1 Reduction by design at source and protective measures .16
4.17.2 Noise measurement .16
4.18 Electromagnetic immunity .16
4.18.1 Requirements .16
4.18.2 Verification .16
4.19 Fuel feed line strength and accessibility .17
4.19.1 Requirements .17
4.19.2 Verification .17
4.20 Fuel tank structural integrity .17
4.20.1 Requirements .17
4.20.2 Verification .17
4.21 Hydraulic and pneumatic pipes and hoses for machines with a backpack power unit.17
4.21.1 Requirements .17
4.21.2 Verification .18
5 Information for use .18
5.1 Instructions .18
5.1.1 General .18
5.1.2 Technical data .18
5.1.3 Other information .18
5.2 Markings and warnings . 20
5.2.1 General requirements . 20
5.2.2 Marking requirements .21
5.2.3 Warning requirements . 22
5.3 Test of labels . 22
5.3.1 Preparation of test specimens and control specimens . 22
5.3.2 Wipe resistance test . 22
5.3.3 Adhesion test . 23
Annex A (informative) List of significant hazards .24
Annex B (normative) Procedures for the evaluation of the strength and accessibility of fuel
feed lines.26
Annex C (normative) Verification of protection against contact with hot parts .27
Bibliography .29

iv
ISO 11680:2025(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 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 first edition of ISO 11680 cancels and replaces ISO 11680-1:2021 and ISO 11680-2:2021, which have
been technically revised.
The main changes are as follows:
— the requirements have been combined into a single standard;
— in 4.3.1:
— the handle's minimal gripping length requirements (from 65 mm to 63 mm) has been revised to
harmonize with IEC standards;
— a 25 mm dimensional requirement around the gripping length has been added;
— in 4.5.3 and Figure 6, a new requirement for cutting attachment strength test set-up for machines with a
backpack has been added;
— in 4.7.1 and Figure 7, the distance to cutting attachments measurements has been clarified;
— in 4.10.2.2, a maximum throttle linkage actuation test force (“200 N") has been added;
— the minimum number of tests (“at least one”) and determination of test directions (“good engineering
judgement”) for fuel feed lines strength and accessibility testings have been clarified;
— in Annex B, the 200 mm of the test probe is the free length after mounting.
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.

v
ISO 11680:2025(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 organisations, 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 (e.g. trade unions, organizations for people with special needs);
— service providers, e. g. for maintenance (small, medium and large enterprises);
— consumers (in 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 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.
vi
International Standard ISO 11680:2025(en)
Machinery for forestry — Safety requirements and testing for
portable pole mounted powered pruners
1 Scope
This document specifies safety requirements, and measures for their verification, for the design and
construction of portable pole-mounted powered pruners with internal combustion engine power sources
(hereafter named “machine”), including extendable and telescopic machines. These machines use a power
transmission shaft to transmit power to a cutting attachment consisting of a saw-chain and guide bar, a
reciprocating saw blade or a single-piece circular saw blade with a 205 mm maximum outside diameter.
This document deals with significant hazards relevant to these machines when they are used as intended.
This document does not address electrical shock from contact with overhead electric lines apart from
warnings and instruction manual requirements, or whole-body vibration from back power units.
NOTE 1 See Annex A for a list of significant hazards.
This document is applicable to machines manufactured after its date of publication.
Brush cutters with a circular saw blade are not included in the scope of this document.
NOTE 2 Brush cutter requirements are outlined in ISO 11806-1 and ISO 11806-2.
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 6531:2024, Machinery for forestry — Portable chain-saws — Vocabulary
ISO 7112:2018, 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 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 14982:1998, Agricultural and forestry machinery — Electromagnetic compatibility — Test methods and
acceptance criteria
ISO 22867:2021, Forestry and gardening machinery — Vibration test code for portable hand-held machines
with internal combustion engine — Vibration at the handles
ISO 22868:2021, Forestry and gardening machinery — Noise test code for portable hand-held machines with
internal combustion engine — Engineering method (Grade 2 accuracy)
IEC 61032:1997, Protection of persons and equipment by enclosures — Probes for verification

ISO 11680:2025(en)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6531:2024, ISO 7112:2018,
ISO 12100:2010 and the following apply.
ISO and IEC maintain terminology 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
portable pole-mounted powered pruner
machine designed to enable an operator to cut branches of standing trees from a distance and that is
supported and controlled by the operator
3.1.1
pole-mounted powered pruner with a hand-held power unit
machine whose power source is connected via a rigid shaft tube (pole) to a cutting attachment
Note 1 to entry: See Figure 1 for examples of pole-mounted powered pruners with a hand-held power unit.
a) Machine with saw-chain b) Machine with circular c) Machine with reciprocating
cutting attachment saw blade cutting attachment saw blade cutting attachment
d) Extendable machine e) Telescopic machine

ISO 11680:2025(en)
Key
1 power unit
2 rear handle
3 front handle
4 shaft tube/power transmission shaft
5 cutting attachment
6 extension
7 telescopic shaft tube
Figure 1 — Examples of pole-mounted powered pruners with a hand-held power unit
3.1.2
pole-mounted powered pruner with a backpack power unit
machine whose power source is mounted to a backpack unit and connected via flexible shaft tube (pole) to a
cutting attachment and disconnecting a driven member to and from a rotating source of power
Note 1 to entry: See Figure 2 for example of pole-mounted powered pruner with backpack power unit. Machines with
backpack power units may also be configured with the cutting attachments shown in Figure 1 b) (circular saw blade)
and Figure 1 c) (reciprocating saw blade).
Key
1 backpack power unit 4 front handle
2 harness for backpack power unit 5 shaft tube/power transmission shaft
3 rear handle 6 cutting attachment
7 hand grip
Figure 2 — Example of pole-mounted powered pruner with backpack power unit
(shown with saw-chain cutting attachment)
3.2
cutting attachment
combination of a saw-chain and guide bar, a reciprocating saw blade or a single-piece circular saw blade,
used to cut branches from a standing tree

ISO 11680:2025(en)
3.3
dry weight
total machine weight without fuel, cutting attachment, and harness (if required in accordance with this
standard)
3.4
extendable
able to extend operational length of the machine by adding shaft extensions
3.5
hand-held power unit
power source which is carried, supported and controlled with the operator’s hands
Note 1 to entry: A harness can aid in providing support.
3.6
telescopic
able to extend operational length of the machine by means of a sliding inner shaft and outer shaft
4 Safety requirements and/or protective measures
4.1 General
The requirements of Clause 4 apply to machines with a hand-held power unit (e.g. pole-mounted powered
pruner with a hand-held power unit) or backpack power unit (e.g. pole-mounted powered pruner with a
backpack power unit) unless otherwise noted.
The machine shall conform with the safety requirements and/or protective measures of this clause. In
addition, the machine shall be designed according to the principles of ISO 12100:2010 for relevant but not
significant hazards which are not dealt with by this document.
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 document, the safety distances in ISO 13857:2019, 4.2.4.1 and
4.2.4.3 shall be met.
4.2 Protection against contact with power driven components
4.2.1 Requirements
All power-driven components, with the exception of the cutting attachment, shall be located or guarded
so that the operator will not inadvertently contact them when starting or during normal operation of the
machine as described in the instructions.
4.2.2 Verification
The location and accessibility of power-driven components shall be verified by inspection, measurement and
testing. For straight line access, the safety distances specified in ISO 13857:2019, 4.2.4.1 and 4.2.4.3 shall
be met. For other access points, use probe B of IEC 61032:1997. The probe shall be applied to any opening
protecting a power-driven part using a force of (10 ± 2) N. Contact with any power-driven component is not
allowed.
ISO 11680:2025(en)
4.3 Handles and hand grip
4.3.1 Requirements for handles
The machine shall have a handle for each hand. The shape and surface of the handle shall be designed so
as to provide the necessary sureness of grip, regardless of whether or not the operator wears gloves. If the
handle nearest the cutting attachment is an integral part of the drive-shaft tube, the perimeter of the handle
cross-section along the gripping length shall be between 63 mm and 170 mm. The gripping length shall be at
least 100 mm. There shall be a minimal radial clearance of 25 mm around the gripping length.
The gripping length of a bail or closed handle 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.
4.3.2 Requirements for hand grip for machines with a backpack power unit
A hand grip is required which may be part of the frame. The shape and surface of the hand grip shall be
designed so as to provide the necessary sureness of grip during handling and transport, regardless of
whether or not the operator wears gloves. The length of the hand grip shall be at last 100 mm and where, for
a bail or closed hand grip, this length is straight or curved at a radius greater than 100 mm together when
any blend radius, but not more than 10 mm at one or both ends of the gripping surface.
4.3.3 Verification
Handle and hand grip design and dimensions shall be verified by inspection, measurement and functional
testing.
4.4 Harness
4.4.1 Requirements
4.4.1.1 Requirements for machines with a hand-held power unit
A machine with a hand-held power unit with a dry weight of more than 6 kg shall be equipped with a harness
to be worn by the operator. The harness is primarily for
...