FprEN ISO 11681-2:2020

Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chain-saws for tree service (ISO/FDIS 11681-2:2020)

2021-04-30 JF there is a need to introduce some technical changes in the text. CEN and ISO/TCs launch the TC votes to approve a 2nd FV/FDIS.
2021-02-25 the HAS assessment has been resolved except that the revised Annex ZA needs to be approved by BT. BT document under preparation.
2020-11-30 JF: CCMC asked CEN/TC to provide the TC response to Consulants comments. The solution of this assessment seems dependant on the solution of the assessment of FprEN ISO 22868. EN ISO 11681-2 contains a normative reference to ISO 22868. Consultant asks for the changes in the Annex ZA as well.

Forstmaschinen - Sicherheitstechnische Anforderungen und Prüfungen für tragbare Kettensägen - Teil 2: Kettensägen für die Baumpflege (ISO/FDIS 11681-2:2020)

Dieses Dokument legt Sicherheitsanforderungen und Maßnahmen zur Überprüfung der Gestaltung, Konstruktion, Lagerung und Inbetriebnahme von tragbaren, handgehaltenen verbrennungsmotorisch betriebenen Kettensägen für die Baumpflege, mit einer maximalen Masse von 4,3 kg (ohne Führungsschiene oder Kette und mit leeren Tanks) fest. —
Die Kettensägen sind für die Benutzung mit der rechten Hand am hinteren Griff und der linken Hand am vorderen Griff, durch einen in der Anwendung ausgebildeten Benutzer vorgesehen.
Demontage und Verschrottung des Produkts werden nicht in diesem Dokument behandelt. Methoden zur Vermeidung oder Verminderung der sich aus dem Gebrauch solcher Maschinen ergebenden Gefährdungen, und die vom Hersteller zu erbringenden Informationen für sicheres Arbeiten, die vom Hersteller zu erbringen sind, werden festgelegt.
Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen oder Gefährdungsereignisse, die für diese Maschinen relevant sind, sofern sie zu dem vorgesehenen Zweck und bei vernünftigerweise durch den Hersteller vorhersehbarem Missbrauch eingesetzt werden.
Dieses Dokument gilt für Kettensägen, die nach dem Veröffentlichungsdatum dieser Norm hergestellt wurden.
ANMERKUNG   Bild 1 zeigt ein Beispiel einer Kettensäge im Geltungsbereich dieses Dokuments.
[Bild und legende]

Matériel forestier - Exigences de sécurité et essais des scies à chaîne portatives - Partie 2: Scies à chaîne pour l'élagage des arbres (ISO/FDIS 11681-2:2020)

Gozdarski stroji - Zahteve za varnost in preskušanje prenosnih motornih verižnih žag - 2. del: Verižne žage za nego dreves (ISO/FDIS 11681-2:2020)

General Information

• Status: Not Published
• ICS: 65.060.80 - Forestry equipment
• Technical Committee: CEN/TC 144 - Tractors and machinery for agriculture and forestry
• Drafting Committee: CEN/TC 144/WG 6 - Manually portable forestry machinery
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Due Date: 04-Jul-2020
• Completion Date: 04-Jul-2020
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: kSIST FprEN ISO 11681-2:2020 - Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chain-saws for tree service (ISO/FDIS 11681-2:2020)

RELATIONS

• Revised: EN ISO 11681-2:2011/A1:2017 - Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chain-saws for tree service (ISO 11681-2:2011/Amd 1:2017)
• Effective Date: 25-Oct-2017
• Revised: EN ISO 11681-2:2011 - Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chain-saws for tree service (ISO 11681-2:2011)
• Effective Date: 25-Oct-2017

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 11681-2:2019
01-november-2019
Gozdarski stroji - Zahteve za varnost in preskušanje prenosnih motornih verižnih
žag - 2. del: Verižne žage za nego dreves (ISO/DIS 11681-2:2019)

Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2:

Chain-saws for tree service (ISO/DIS 11681-2:2019)
Forstmaschinen - Sicherheitstechnische Anforderungen und Prüfungen für tragbare
Kettensägen - Teil 2: Kettensägen für die Baumpflege (ISO/DIS 11681-2:2019)

Matériel forestier - Exigences de sécurité et essais des scies à chaîne portatives - Partie

2: Scies à chaîne pour l'élagage des arbres (ISO/DIS 11681-2:2019)
Ta slovenski standard je istoveten z: prEN ISO 11681-2
ICS:
65.060.80 Gozdarska oprema Forestry equipment
oSIST prEN ISO 11681-2:2019 en,fr,de

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

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oSIST prEN ISO 11681-2:2019
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oSIST prEN ISO 11681-2:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11681-2
ISO/TC 23/SC 17 Secretariat: SIS
Voting begins on: Voting terminates on:
2019-09-11 2019-12-04
Machinery for forestry — Portable chain-saw safety
requirements and testing —
Part 2:
Chain-saws for tree service

Matériel forestier — Exigences de sécurité et essais des scies à chaîne portatives —

Partie 2: Scies à chaîne pour l'élagage des arbres
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 11681-2:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
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oSIST prEN ISO 11681-2:2019
ISO/DIS 11681-2:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

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

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

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

below or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: [phone]
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Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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oSIST prEN ISO 11681-2:2019
ISO/DIS 11681-2:2019(E)
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 ............................................................................................................ 3

4.1 General ........................................................................................................................................................................................................... 3

4.2 Handles .......................................................................................................................................................................................................... 4

4.2.1 Requirements ..................................................................................................................................................................... 4

4.2.2 Verification ............................................................................................................................................................................ 4

4.3 Hand protection ..................................................................................................................................................................................... 4

4.3.1 Protection at front handle ........................................................................................................................................ 4

4.3.2 Protection at rear handle .......................................................................................................................................... 4

4.4 Balance and holding moment ..................................................................................................................................................... 5

4.4.1 Requirements ..................................................................................................................................................................... 5

4.4.2 Verification ............................................................................................................................................................................ 5

4.5 Protection against injury by kickback ................................................................................................................................. 6

4.5.1 Chain brake ........................................................................................................................................................................... 6

4.5.2 Non-manual chain brake ........................................................................................................................................... 6

4.5.3 Kickback and chain stop angles .......................................................................................................................... 6

4.6 Chain catcher ............................................................................................................................................................................................ 6

4.6.1 Requirements ..................................................................................................................................................................... 6

4.6.2 Verification ............................................................................................................................................................................ 6

4.7 Spiked bumper ........................................................................................................................................................................................ 7

4.7.1 Requirements ..................................................................................................................................................................... 7

4.7.2 Verification ............................................................................................................................................................................ 7

4.8 Chip discharge ......................................................................................................................................................................................... 7

4.8.1 Requirements ..................................................................................................................................................................... 7

4.8.2 Verification ............................................................................................................................................................................ 7

4.9 Guide-bar cover ...................................................................................................................................................................................... 7

4.9.1 Requirements ..................................................................................................................................................................... 7

4.9.2 Verification ............................................................................................................................................................................ 7

4.10 Engine starting device ...................................................................................................................................................................... 7

4.10.1 Requirements ..................................................................................................................................................................... 7

4.10.2 Verification ............................................................................................................................................................................ 7

4.11 Engine stopping device .................................................................................................................................................................... 7

4.11.1 Requirements ..................................................................................................................................................................... 7

4.11.2 Verification ............................................................................................................................................................................ 8

4.12 Throttle control ...................................................................................................................................................................................... 8

4.12.1 Dimensions ........................................................................................................................................................................... 8

4.12.2 Operation ................................................................................................................................................................................ 8

4.12.3 Throttle control latch ................................................................................................................................................... 9

4.13 Drive sprocket guard.......................................................................................................................................................................... 9

4.13.1 Requirements ..................................................................................................................................................................... 9

4.13.2 Verification ............................................................................................................................................................................ 9

4.14 Clutch............................................................................................................................................................................................................10

4.14.1 Requirements ..................................................................................................................................................................10

4.14.2 Verification .........................................................................................................................................................................10

4.15 Protection against contact with parts under high voltage .............................................................................10

4.15.1 Requirements ..................................................................................................................................................................10

4.15.2 Verification .........................................................................................................................................................................10

4.16 Protection against contact with hot parts ....................................................................................................................10

4.16.1 Requirements ..................................................................................................................................................................10

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4.16.2 Verification .........................................................................................................................................................................10

4.17 Fuel and oil systems ........................................................................................................................................................................11

4.17.1 Requirements ..................................................................................................................................................................11

4.17.2 Verification .........................................................................................................................................................................12

4.18 Exhaust gases ........................................................................................................................................................................................13

4.18.1 Requirements ..................................................................................................................................................................13

4.18.2 Verification .........................................................................................................................................................................13

4.19 Chain lubrication ................................................................................................................................................................................13

4.19.1 Requirements ..................................................................................................................................................................13

4.19.2 Verification .........................................................................................................................................................................13

4.20 Chain tensioning .................................................................................................................................................................................13

4.20.1 Requirements ..................................................................................................................................................................13

4.20.2 Verification .........................................................................................................................................................................13

4.21 Attachment device ............................................................................................................................................................................13

4.21.1 Requirements ..................................................................................................................................................................13

4.21.2 Verification .........................................................................................................................................................................13

4.22 Vibration ....................................................................................................................................................................................................13

4.22.1 Reduction by design at source and by protective measures ...................................................13

4.22.2 Vibration measurement ..........................................................................................................................................14

4.23 Noise .............................................................................................................................................................................................................14

4.23.1 Reduction by design at source and by protective measures ...................................................14

4.23.2 Noise measurement ...................................................................................................................................................14

4.24 Electromagnetic immunity ........................................................................................................................................................14

4.24.1 Requirements ..................................................................................................................................................................14

4.24.2 Verification .........................................................................................................................................................................14

5 Information for use .........................................................................................................................................................................................14

5.1 Instruction handbook ....................................................................................................................................................................14

5.1.1 General...................................................................................................................................................................................14

5.1.2 Technical data ..................................................................................................................................................................15

5.1.3 Other information ........................................................................................................................................................15

5.2 Marking ......................................................................................................................................................................................................17

5.3 Warnings ...................................................................................................................................................................................................18

5.4 Test of labels ...........................................................................................................................................................................................19

5.4.1 Preparation of test specimens and control specimens ................................................................19

5.4.2 Wipe resistance test ...................................................................................................................................................19

5.4.3 Adhesion test .................. .................................................... ..............................................................................................20

Annex A (informative) Working with tree service chain-saws from rope and harness ................................21

Annex B (informative) List of significant hazards................................................................................................................................27

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

requirements of EU Directive 2006/42/EC aimed to be covered ....................................................................29

Bibliography .............................................................................................................................................................................................................................32

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oSIST prEN ISO 11681-2:2019
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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 11681-2 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture

and forestry, Subcommittee SC 17, Manually portable forest machinery.

This fourth edition cancels and replaces the third edition (ISO 11681-2:2011), which has been

technically revised.
The main changes compared to the previous edition are as follows:
— Normative references
— Kickback (clarification of requirements)
— Throttle control (verification of requirements)
— Fuel line strength and accessibility
— Information for use - Technical data
— Instruction handbook – Safe starting procedure

ISO 11681 consists of the following parts, under the general title Machinery for forestry — Portable

chain-saw safety requirements and testing:
— Part 1: Chain-saws for forest service
— Part 2: Chain-saws for tree service
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oSIST prEN ISO 11681-2:2019
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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.
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oSIST prEN ISO 11681-2:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 11681-2:2019(E)
Machinery for forestry — Portable chain-saw safety
requirements and testing —
Part 2:
Chain-saws for tree service
1 Scope

This part of ISO 11681 gives safety requirements and measures for their verification for the design

and construction for tree service of portable, combustion-engine, hand-held chain-saws having a

maximum mass — without guide bar and saw chain and with tanks empty — of 4,3 kg, intended to be

used, with the right hand on the rear handle and left hand on the front handle, by a trained operator,

having read and understood the safety requirements provided in the instruction handbook, for pruning

and dismantling standing tree crowns, using the appropriate personal protective equipment (PPE).

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 11681 deals with all significant hazards, hazardous situations and hazardous events

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 B for a list of significant hazards.

This part of ISO 11681 is applicable to chain-saws manufactured after its date of publication.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document.

For dated references, only the edition cited applies. For undated references, the latest edition of the

referenced document (including any amendments) applies.
ISO 6531:2017, Machinery for forestry — Portable chain-saws — Vocabulary

ISO 6533, Forestry machinery — Portable chain-saw front hand-guard — Dimensions and clearances

ISO 6534, Forestry machinery — Portable chain-saw hand-guards — Mechanical strength

ISO 6535, Portable chain-saws — Chain brake performance

ISO 7293, Forestry machinery — Portable chain saws — Engine performance and fuel consumption

ISO 7914:2002, Forestry machinery — Portable chain-saws — Minimum handle clearance and sizes

ISO 7915, Forestry machinery — Portable chain-saws — Determination of handle strength

ISO 8334, Forestry machinery — Portable chain-saws — Determination of balance and maximum

holding moment
ISO 9518, Forestry machinery — Portable chain-saws — Kickback test

ISO 10726, Portable chain saws — Chain catcher — Dimensions and mechanical strength

ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction

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oSIST prEN ISO 11681-2:2019
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ISO 13772, Forestry machinery — Portable chain-saws — Non-manually actuated chain brake performance

ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General

principles for design

ISO 13849-2, Safety of machinery — Safety-related parts of control systems — Part 2: Validation

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 22868, 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 Enclosure – Probes for Verification

ISO 7010, Graphical symbols – Safety colours and safety signs – Registered safety signs

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 6531 and ISO 12100 apply.

Note 1 to entry Figure 1 shows an example of a chain-saw within the scope of this part of ISO 11681.

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oSIST prEN ISO 11681-2:2019
ISO/DIS 11681-2:2019(E)
Key
1 rear handle 7 guide bar
2 throttle trigger lock-out 8 spiked bumper
3 throttle trigger 9 chain catcher
4 front handle 10 stopping device
5 front hand guard 11 attachment point
6 guide-bar cover 12 saw chain
Figure 1 — Example of chain-saw
3.1
trained operator
person who has competence and knowledge in

— the use of, and particular hazards associated with using, a chain-saw (for tree service work)

manufactured in accordance with the provisions of this part of ISO 11681, and

— the precautions to be taken to limit these hazards, including the wearing of the recommended

personal protective equipment (PPE)
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 11681.

The safe operation of a chain-saw also depends on the safe environment associated with the use of

personal protective equipment (PPE), such as gloves, slip-resistant footwear, and leg, eye, foot, hearing

and head protective equipment, as well as safe working procedures (see 5.1).

Except where otherwise specified in this part of ISO 11681, the safety distances specified in

ISO 13857:2008, 4.2.4.1 and 4.2.4.3, shall be met.
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oSIST prEN ISO 11681-2:2019
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4.2 Handles
4.2.1 Requirements
Chain-saws sha
...