Machinery for forestry - Winches - Part 2: Traction aid winches (ISO 19472-2:2022)

This International Standard defines dimensions and specifies performance and safety requirements for traction assistance/tethering winches used in forestry for assisting supported machines while going uphill and downhill (pulling and braking). It is applicable to fixed and detachable winches and their components, connections and communications, which are used with mobile and self-propelled forestry machinery as defined in ISO 6814 such as harvesters, forwarders, skidders, planting machines, machines for forest ground preparation and machines for extracting residual waste. These machines can be equipped with wheels and/or tracks. It is applicable to autonomous traction assistance winch systems which are installed on a position away from the supported machine too. It is not applicable to traction assistance winches which are not using a controlled rope force while going downhill and winches used for skidding, hoisting operations on cranes, draglines, high lead logging, rope, logging systems or yarding. The safe use of traction assistance systems covered by this standard requires the supported machines to be able to remain at least stationary on any position of the slope they are driving on without using rope support.

Forstmaschinen - Winden - Teil 2: Traktionshilfs- und Unterstützungswinden (ISO 19472-2:2022)

Dieses Dokument definiert die Maße und legt die Leistungs- und Sicherheitsanforderungen für Traktionshilfswinden in der Forstwirtschaft zur Unterstützung von Maschinen bei Bergauf- und Bergabbewegungen (Ziehen und Bremsen) fest.
Dieses Dokument gilt für feste und abnehmbare Winden und ihre Bauteile, Verbindungen und Kommunikationsmittel, die mit mobilen und selbstfahrenden Forstmaschinen nach ISO 6814:2009 und Erdbaumaschinen nach ISO 6165:2012 angewendet werden. Darüber hinaus gilt das Dokument für abgesetzte Traktionshilfswindensysteme, die in einer von der unterstützten Maschine abgesetzten Position installiert werden. Darüber hinaus definiert dieses Dokument Anforderungen für die Montage der unterstützten Maschine und der Traktionshilfswinde. Das Dokument gilt nicht für Winden, die keine kontrollierte Seilkraft während der Bergabbewegung nutzen, und Winden, die für das Schleifrücken, den Hebebetrieb an Kränen, Zugleinen, Rückemastverfahren, Seilfällsysteme oder Rückarbeiten mit Seilgeräten eingesetzt werden. Die Art der Antriebsmaschine, die zum Antrieb einer Traktionshilfswinde verwendet wird, schränkt die Anwendbarkeit dieses Dokuments nicht ein. Dieses Dokument ist für die Anwendung auf Traktionshilfssystemen an Maschinen vorgesehen, wo die Maschine ohne die Anwendung solcher Systeme an Gefällen stationär unter ihrer eigenen unabhängigen Kontrolle bleibt (siehe Anhang E).
Forstmaschinen nach ISO 6814:2009, die als Anker verwendet werden, oder unterstützte Maschinen liegen nicht im Anwendungsbereich dieses Dokuments. Anforderungen an die Sicherheit vieler Arten von unterstützten Maschinen fallen in den Anwendungsbereich von ISO 11850:2011.
Dieses Dokument gilt nicht für Traktionshilfswinden, die vor dem Veröffentlichungsdatum dieses Dokuments hergestellt wurden.

Matériels forestiers - Treuils - Partie 2: Treuils d’aide à la traction (ISO 19472-2:2022)

Le présent document définit les dimensions et spécifie les exigences de performance et de sécurité pour les treuils d'aide à la traction utilisés en sylviculture pour assister les machines supportées en montée et en descente (traction et freinage).
Le présent document est applicable aux treuils fixes et amovibles et à leurs composants, raccords et communications, qui sont utilisés avec les matériels forestiers mobiles et automoteurs définis dans l'ISO 6814:2009 et avec les engins de terrassement définis dans l'ISO 6165:2012. Il est aussi applicable aux systèmes de treuils d'aide à la traction à distance qui sont installés dans une position éloignée de la machine supportée. En outre, le présent document définit les exigences applicables à l'ensemble formé par la machine supportée et le treuil d'aide à la traction. Elle n'est pas applicable aux treuils qui n'utilisent pas de force de câble contrôlée en descente et aux treuils utilisés pour le débusquage, les opérations de levage sur des grues, les câbles de traînage, le téléphérage relevé, les systèmes de débardage par câble ou le traînage. Le type de moteur principal utilisé pour entraîner un treuil d'aide à la traction ne restreint pas l'applicabilité du présent document. Le présent document est destiné à être appliqué aux systèmes d'aide à la traction utilisés sur les machines, lorsqu'en l'absence de ces systèmes, la machine reste stationnaire sur des pentes sous son contrôle indépendant (voir l'Annexe E).
Les machines forestières, telles que définies dans l'ISO 6814:2009 qui sont utilisées comme des machines d'ancrage ou supportées, ne font pas partie du domaine d'application du présent document. Les exigences concernant la sécurité de nombreux types de machines supportées entrent dans le domaine d'application de l'ISO 11850:2011.
Le présent document ne s'applique pas aux treuils d'aide à la traction fabriqués avant la date de sa publication.

Gozdarski stroji - Vitli - 2. del: Vlečni pomožni vitli (ISO 19472-2:2022)

Ta mednarodni standard določa mere ter zahteve glede delovanja in varnosti vlečnih pomožnih vitlov/vitlov za privezovanje, ki se uporabljajo v gozdarstvu za pomoč podprtim strojem pri vožnji navzgor in navzdol (vleka in zaviranje). Uporablja se za fiksne in snemljive vitle ter njihove sestavne dele, priključke in komunikacijske naprave, ki se uporabljajo z mobilnimi gozdarskimi stroji in gozdarskimi stroji z lastnim pogonom, kot je opredeljeno v standardu ISO 6814 (npr. kombajni, traktorji za vleko in transport hlodov, stroji za sajenje, stroji za pripravo gozdnih tal in stroji za odstranjevanje ostankov odpadkov). Ti stroji so lahko opremljeni s kolesi in/ali tirnicami. Uporablja se tudi za samostojne sisteme vlečnih pomožnih vitlov, ki so nameščeni stran od podprtega stroja. Standard se ne uporablja za vlečne pomožne vitle, ki pri vožnji navzdol ne uporabljajo nadzorovane sile v vrvi, in vitle, ki se uporabljajo za vleko lesa, dvigovanje na žerjavih, kabelske kopače, sečnjo in spravilo lesa z visečimi kabli (high-lead), sisteme sečnje z uporabo vrvi oziroma spravilo lesa. Da je uporaba sistemov za pomoč pri vleki iz tega standarda varna, je potrebno, da se podprti stroji v katerem koli položaju na klančini, po kateri vozijo, vsaj ne premikajo (brez uporabe podpore vrvi).

General Information

Status
Published
Public Enquiry End Date
26-Apr-2020
Publication Date
03-Apr-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Mar-2022
Due Date
29-May-2022
Completion Date
04-Apr-2022

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 19472-2:2022
01-maj-2022
Gozdarski stroji - Vitli - 2. del: Vlečni pomožni vitli (ISO 19472-2:2022)
Machinery for forestry - Winches - Part 2: Traction aid winches (ISO 19472-2:2022)
Forstmaschinen - Winden - Teil 2: Traktionshilfs- und Unterstützungswinden (ISO 19472-
2:2022)
Matériels forestiers - Treuils - Partie 2: Treuils d’aide à la traction (ISO 19472-2:2022)
Ta slovenski standard je istoveten z: EN ISO 19472-2:2022
ICS:
65.060.80 Gozdarska oprema Forestry equipment
SIST EN ISO 19472-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 19472-2:2022

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SIST EN ISO 19472-2:2022


EN ISO 19472-2
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2022
EUROPÄISCHE NORM
ICS 65.060.80
English Version

Machinery for forestry - Winches - Part 2: Traction aid
winches (ISO 19472-2:2022)
Matériels forestiers - Treuils - Partie 2: Treuils d'aide à Forstmaschinen - Winden - Maße, Leistung und
la traction (ISO 19472-2:2022) Sicherheit - Teil 2: Traktionshilfs- und
Unterstützungswinden (ISO 19472-2:2022)
This European Standard was approved by CEN on 26 December 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 19472-2:2022 E
worldwide for CEN national Members.

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SIST EN ISO 19472-2:2022
EN ISO 19472-2:2022 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
Requirements of EU Directive 2006/42/EC aimed to be covered . 4
2

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SIST EN ISO 19472-2:2022
EN ISO 19472-2:2022 (E)
European foreword
This document (EN ISO 19472-2:2022) 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 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 19472-2:2022 has been approved by CEN as EN ISO 19472-2:2022 without any
modification.

3

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SIST EN ISO 19472-2:2022
EN ISO 19472-2:2022 (E)
Annex ZA
(informative)

Relationship between this European Standard and the essential
Requirements of EU 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 standardization 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 Directive 2006/42/EC and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and EU Directive 2006/42/EC
The relevant Essential Clause(s)/subclause(s) of this Remarks/Notes
requirements of EU Directive EN
2006/42/EC
1.1.2. (a) Principles of safety 4; 5.2
integration
1.1.2 (c) Principles of safety 4.11.2; 5.2
integration
1.1.2 (d) Principles of safety 5.2
integration
1.1.2. (e) Principles of safety 4.4; 4.5
integration
1.1.3. Materials and products 4.5; 4.8; 4.12
1.1.5. Design of machinery to 4.2.3; 4.4; 4.5; 4.12; 4.13; 4.19
facilitate its handling
1.1.6. Ergonomics 4.9
1.1.7. Operating positions 4.13 only additions to existing operator
stations are covered
1.2.1. Safety and reliability of 4.2; 4.7; 4.9; 4.11
control systems
1.2.2. Control devices 4.9
1.2.3. Starting 4.9; 4.11
1.2.4.1. Normal stop 4.9
1.2.4.3. Emergency stop 4.10
1.2.4.4. Assembly of machinery 4.9; 4.10; 4.11.2; 4.13
1.2.5. Selection of control or 4.11
operating modes
4

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SIST EN ISO 19472-2:2022
EN ISO 19472-2:2022 (E)
1.2.6. Failure of power supply 4.9; 4.13
1.3.1. Risk of loss of stability 4.2.3; 4.5
1.3.2. Risk of break-up during 4.2.3; 4.3.1; 4.3.2; 4.4; 4.12
operation
1.3.4. Risks due to surfaces, 4.2.3
edges or angles
1.3.6. Risks related to 4.2.1; 4.3.1; 4.11.2 operating conditions besides traction
variations in operating aid are not covered (e.g. winch is used
conditions for skidding)
1.3.7. Risks related to moving 4.2.1; 4.2.3; 4.3; 5.3; 6
parts
1.3.8.1. Moving transmission 4.2.3; 4.8
parts
1.3.8.2. Moving parts involved 4.2.3; 5.3
in the process
1.3.9. Risks of uncontrolled 4.2.2; 4.6; 4.11; 4.13
movements
1.4.1. Guards ̶ General 4.2.3
requirements
1.4.2. Special requirements for 4.2.3
guards
1.5.1. Electricity supply 4.7
1.5.2. Static electricity 4.7
1.5.3. Energy supply other than 4.8
electricity
1.5.4. Errors of fitting 4.3; 4.4;4.5; 5
1.5.5. Extreme temperatures 4.2.3
1.5.6. Fire 4.16
1.5.8. Noise 4.14; Annex D
1.5.9. Vibrations 4.15 positioning of a remote traction aid
systems is not covered.
1.5.15. Risk of slipping, tripping 4.12; 4.18
or falling
1.5.16. Lightning not covered
1.6.1. Machinery maintenance 4.17; 4.18; 5.1; 5.2
1.6.2. Access to operating 4.18
positions and servicing points
1.6.3. Isolation of energy 4.7; 4.9
sources
1.7.1. Information and 4.2.2; 4.3.1; 4.9; 4.11.2; 4.11.3;
warnings on the machinery 4.13; 5; 6
1.7.2. Warning of residual risks 4.11.2; 5; 6
1.7.3. Marking of machinery 4.4; 6
5

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SIST EN ISO 19472-2:2022
EN ISO 19472-2:2022 (E)
1.7.4. Instructions 5
3.2.1. Driving position 4.13
3.3. Control systems 4.9; 4.11.3; 4.13
3.4.1. Uncontrolled movements 4.2.2; 4.2.3; 4.9; 4.13; 5; 6
3.4.2. Moving transmission 4.2.3
parts
3.4.5. Means of access 4.12; 4.13; 4.18
3.4.6. Towing devices 4.3; 4.4; 4.5; 5.2; 6
3.4.7. Transmission of power 4.8; 4.12
between self-propelled
machinery (or tractor) and
recipient machinery
3.5.1. Batteries 4.7
3.5.2. Fire 4.16
3.6.1. Signs, signals and 4.11.2; 4.11.3; 4.13; 6 warning devices of supported
warnings machines are not covered
3.6.2. Marking 6
3.6.3. Instructions 5.1; 5.2
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.

6

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SIST EN ISO 19472-2:2022
INTERNATIONAL ISO
STANDARD 19472-2
First edition
2022-01
Machinery for forestry — Winches —
Part 2:
Traction aid winches
Matériels forestiers — Treuils —
Partie 2: Treuils d’aide à la traction
Reference number
ISO 19472-2:2022(E)
© ISO 2022

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SIST EN ISO 19472-2:2022
ISO 19472-2:2022(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 19472-2:2022
ISO 19472-2:2022(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 3
3.1 Terms and definitions . 3
3.2 Symbols . 7
4 Safety requirements for traction aid winches . 7
4.1 General . 7
4.2 Design . 8
4.2.1 Modes of operation . 8
4.2.2 Anchor monitoring . 8
4.2.3 Mechanical safety and stability . 8
4.3 Rope drive . 8
4.3.1 General . 8
4.3.2 Steel wire ropes . 9
4.3.3 Rope end connectors . 10
4.4 Attachment points at the supported machine for use with remote traction aid
winches . 10
4.5 Combination of the supported machine with the traction aid winch system . 10
4.6 Brake systems . 11
4.7 Electrical safety . 11
4.8 Energy supply . 11
4.9 Operator controls, starting and stopping . 11
4.10 Emergency stop . 12
4.11 Control system .12
4.11.1 General .12
4.11.2 Operation mode control .12
4.11.3 Remote control system .13
4.11.4 Safety relevant functions . 13
4.12 Additional requirements for removable traction aid winches of both integrated
traction aid winches removable installation and the remote traction aid winches
removable from their anchor machines . 13
4.13 Additional requirements for remote traction aid winches . 14
4.14 Noise emissions .15
4.15 Vibration . 15
4.16 Fire risks . 15
4.17 Maintenance . . 16
4.18 Access system . 16
4.19 Tie down and machine lifting devices . 16
5 User information .16
5.1 General . 16
5.2 Special requirements . 17
5.3 Hazard zones . 19
6 Marking . .19
Annex A (normative) Hazard zones .21
Annex B (normative) Rope arrangement for proper spooling .24
Annex C (informative) List of significant hazards .25
Annex D (normative) Noise test code .27
Annex E (informative) Aspects of operating traction aid winches .30
iii
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SIST EN ISO 19472-2:2022
ISO 19472-2:2022(E)
Annex F (informative) Example machine safety label (ISO 15817:2012) .36
Annex ZA (informative) Relationship between this European Standard and the essential
Requirements of EU Directive 2006/42/EC aimed to be covered .37
Bibliography .40
iv
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SIST EN ISO 19472-2:2022
ISO 19472-2:2022(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 15, Machinery for forestry, in collaboration with the European Committee
for Standardization (CEN) Technical Committee CEN/TC 144, Tractors and machinery for agriculture
and forestry, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
A list of all parts in the ISO 19472 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.
v
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SIST EN ISO 19472-2:2022
ISO 19472-2:2022(E)
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).
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.
Traction aid winches are used with forest machines when operating in sloped terrain and on soils with
limited bearing capacity or poor traction. Such winches do provide traction aid to a supported machine.
The combined tractive effort provided by the machine’s wheels or tracks and the traction aid winch
makes it easier to access steep slopes and manage unfavourable soil conditions while maintaining
productivity by avoiding excess uphill driving or driving around a gradient, especially with harvesters,
fellers, forwarders and skidders. Forest floor damages are greatly reduced which leads to a lower
risk of erosion after logging operations. Machine stability is also enhanced, and thus general safety of
operation is improved. Traction aid winches offer a possibility for machines to work on slopes which
otherwise would be difficult to negotiate. This makes it simpler to mechanize work in steep terrain
which otherwise would have to be performed manually.
Forestry winches for typical logging, such as the ones used for skidding or cable yarding of stems/logs,
are designed for a different application than traction aid winches. The control systems, safety features,
and performance measures of forestry winches have been designed for a purpose that is incompatible
with the requirements of traction aid applications. Therefore, forestry winches should not be used in
traction aid applications.
The main categories of winches for tractive efforts are shown in Figure 1. Further aspects of the design
and operation of traction aid winches can be found in Annex E.
vi
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SIST EN ISO 19472-2:2022
ISO 19472-2:2022(E)
Figure 1 — Categorization of winches for tractive efforts
vii
© ISO 2022 – All rights reserved

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SIST EN ISO 19472-2:2022

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SIST EN ISO 19472-2:2022
INTERNATIONAL STANDARD ISO 19472-2:2022(E)
Machinery for forestry — Winches —
Part 2:
Traction aid winches
1 Scope
This document defines the dimensions and specifies the performance and safety requirements for
traction aid winches used in forestry for assisting supported machines while going uphill and downhill
(pulling and braking).
This document is applicable to fixed and detachable winches and their components, connections and
communications, which are used with mobile and self-propelled forestry machinery as defined in
ISO 6814:2009 and earth moving machinery as defined in ISO 6165:2012. It is also applicable to remote
traction aid winch systems which are installed on a position away from the supported machine. In
addition, this document defines requirements for the assembly of supported machine and traction aid
winch. It is not applicable to winches which are not using a controlled rope force while going downhill
and winches used for skidding, hoisting operations on cranes, draglines, high lead logging, rope logging
systems or yarding. The kind of prime mover used to drive a traction aid winch does not limit the
applicability of this document. This document is intended to be applied to traction aid systems used
on machines where, without use of these systems, the machine remains stationary on slopes under its
independent control (see Annex E).
Forestry machines, as defined in ISO 6814:2009, that are used as anchor or supported machines are not
in the scope of this document. Requirements for the safety of many types of supported machines are
within the scope of ISO 11850:2011.
This document is not applicable to traction aid winches manufactured before the date of its publication.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2867:2011, Earth-moving machinery — Access systems
ISO 3600:2015, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment —
Operator's manuals — Content and format
ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engine
...

SLOVENSKI STANDARD
oSIST prEN ISO 19472-2:2020
01-april-2020
Gozdarski stroji - Vitli - Mere, lastnosti in varnost - 2. del: Vlečni pomožni vitli
(ISO/DIS 19472-2:2020)
Machinery for forestry - Winches - Dimensions, performance and safety - Part 2: Traction
aid winches (ISO/DIS 19472-2:2020)
Forstmaschinen - Winden - Maße, Leistung und Sicherheit - Teil 2: Traktionshilfs- und
Unterstützungswinden (ISO/DIS 19472-2:2020)
Matériels forestiers - Treuils - Dimensions, performances et sécurité - Partie 2: Treuils
d’aide à la traction (ISO/DIS 19472-2:2020)
Ta slovenski standard je istoveten z: prEN ISO 19472-2
ICS:
65.060.80 Gozdarska oprema Forestry equipment
oSIST prEN ISO 19472-2:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 19472-2:2020

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oSIST prEN ISO 19472-2:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19472-2
ISO/TC 23/SC 15 Secretariat: SFS
Voting begins on: Voting terminates on:
2020-02-03 2020-04-27
Machinery for forestry — Winches — Dimensions,
performance and safety —
Part 2:
Traction aid winches
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 19472-2:2020(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

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oSIST prEN ISO 19472-2:2020
ISO/DIS 19472-2:2020(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

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oSIST prEN ISO 19472-2:2020
ISO/DIS 19472-2:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 Safety requirements for traction aid winches . 7
4.1 Design . 7
4.1.1 General. 7
4.1.2 Mechanical safety . 7
4.2 Rope drive . 7
4.2.1 Rope . 9
4.3 Combination of the supported machine with the traction aid winch system. 9
4.4 Brake systems .10
4.5 Electrical safety .10
4.6 Operator Controls.10
4.7 Machine control system .10
4.7.1 General.10
4.7.2 Operation mode .10
4.7.3 Remote control system .11
4.7.4 Safety relevant functions .11
4.8 Operator protection .11
4.9 Additional requirements for removable traction aid winches .11
4.10 Additional requirements for remote traction aid winches .12
4.11 Noise emissions .13
4.12 Vibration .13
4.13 Fire Risks .13
4.14 Maintenance .13
4.15 Access system .13
5 User information .13
5.1 General .13
5.2 Special requirements .13
5.3 Danger zones .16
6 Marking .16
Annex A (normative) Danger zones .17
Annex B (normative) Rope arrangement for proper spooling .19
Annex C (informative) List of significant Hazards .20
Annex D (informative) Aspects of operating traction aid winches .21
Annex E (informative) Example machine safety label (ISO 15817).25
Annex ZA (informative) Relationship between this European Standard and the essential
Requirements of EU Directive 2006/42/EC aimed to be covered .26
Bibliography .28
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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.
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/SC 15 Forestry machinery (SFS).
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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Introduction
Traction aid winches are used with forest machines when operating in sloped terrain and on soils
with limited bearing capacity or poor traction. The winch provides traction assistance to a machine.
The combined tractive effort provided by the machine’s wheels or tracks and the traction aid winch
make it easier to access steep slopes and manage unfavourable soil conditions while maintaining
productivity by avoiding excess uphill driving or driving around a gradient, especially with harvesters,
fellers, forwarders and skidders. Forest floor damages are greatly reduced which leads to a lower
risk of erosion after logging operations. Machine stability is also enhanced and thus general safety of
operation is improved. Traction aid winches offer a possibility for machines to work on slopes which
otherwise would be difficult to negotiate. This makes it simpler to mechanize work in steep terrain
which otherwise would have to be performed manually.
Forestry winches for typical logging such as the ones used for skidding or cable yarding of stems/logs
are designed for a different application than traction aid winches. The control systems, safety features,
and performance measures on forestry winches have been designed for a purpose that is incompatible
with the requirements of traction aid applications. Therefore forestry winches should not be used in
traction aid applications.
Main categories of winches for tractive efforts are shown in Fig I. Further aspects of the design and
operation of traction aid winches can be found in Annex D.
Fig I — Categorization of winches for tractive efforts
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oSIST prEN ISO 19472-2:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 19472-2:2020(E)
Machinery for forestry — Winches — Dimensions,
performance and safety —
Part 2:
Traction aid winches
1 Scope
This International Standard defines dimensions and specifies performance and safety requirements
for traction aid winches used in forestry for assisting supported machines while going uphill and
downhill (pulling and braking). It is applicable to fixed and detachable winches and their components,
connections and communications, which are used with mobile and self-propelled forestry machinery
as defined in ISO 6814 such as harvesters, forwarders, skidders, planting machines, machines for
forest ground preparation and machines for extracting residual waste. It is also applicable to remote
traction aid winch systems which are installed on a position away from the supported machine. It is
not applicable to winches which are not using a controlled rope force while going downhill and winches
used for skidding, hoisting operations on cranes, draglines, high lead logging, rope logging systems
or yarding. This standard is intended to be applied to traction aid systems used on machines, where
without use of these systems the machine would remain stationary on slopes under its independent
control (see Appendix D).
Forestry machines, as defined in ISO 6814 that are used as anchor or supported machines, are not in the
scope of this standard. For guidance refer to EN ISO 11850.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 953:2009, Safety of machinery. Guards. General requirements for the design and construction of fixed
and movable guards
ISO 2631-1:1997-05, and AMD 1:2010-07, Mechanical vibration and shock — Evaluation of human exposure
to whole-body vibration — Part 1: General requirements
ISO 3600, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment —
Operator's manuals — Content and format
EN ISO 4254-1:2016, Agricultural machinery - Safety - Part 1: General requirements
ISO 4309:2003, Cranes and lifting appliances - Selection of wire ropes - Part 1: General (ISO 16625:2013)
ISO 4309:2012, Cranes — Wire ropes — Care and maintenance, inspection and discard
ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components
ISO 6750, Earth moving machinery — Operator’s manual — Content and format
ISO 6814:2009-5, Machinery for forestry - Mobile and self-propelled machinery - Terms, definitions and
classification
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ISO 8084:2003, Machinery for forestry — Operator protective structures — Laboratory tests and
performance requirements
ISO 9612:2009-09, Acoustics — Determination of occupational noise exposure — Engineering method
ISO 10968, Earth-moving machinery — Operator’s controls
EN ISO 11850:2016, Machinery for forestry - General safety requirements
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN 12385-1:2009, Steel wire ropes. Safety. Part 1: General requirements
EN 12385-2:2008, Steel wire ropes. Safety. Part 2: Definitions, designation and classification
EN 12385-3:2018, Steel wire ropes — Safety — Part 3: Information for use and maintenance
EN 12385-4:2008, Steel wire ropes. Safety. Part 4: Stranded ropes for general lifting applications
EN 12385-5:2003-03, Steel wire ropes—- Safety — Part 5: Stranded ropes for lifts
ISO 12508, Earth-moving machinery — Operator station and maintenance areas — Bluntness of edges
EN ISO 13411-3:2009, Terminations for steel wire ropes. Safety Part 3: Ferrules and ferrule securing
EN ISO 13411-6:2009, Terminations for steel wire ropes. Safety. Part 6: Asymmetric wedge socket
EN ISO 13411-8:2011, Terminations for steel wire ropes. Safety. Part 8: Swage terminals and swaging
ISO 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human responses to
contact with surfaces — Part 1: Hot surfaces
EN ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles
for design (ISO 13849-1:2006)
ISO 13850:2006, (EN 418), Safety of machinery. Emergency stop. Principles for design
ISO 13857:2008, (EN 294), Safety of machinery. Safety distances to prevent hazard zones being reached by
upper and lower limbs
EN 14492-1:2010, Cranes. Power driven winches and hoists. Part 1: Power driven winches
ISO 15077:2008, Tractors and self-propelled machinery for agriculture — Operator controls — Actuating
forces, displacement, location and method of operation
ISO 15817:2012, Earth-moving machinery — Safety requirements for remote operator control systems
ISO 16625:2013, Cranes and hoists — Selection of wire ropes, drums and sheaves
EN 17067:2019, - Forestry machinery - Safety requirements on radio remote controls; German and English
version EN 17067:2019
ISO 19472:2006, Machinery for forestry — Winches — Dimensions, performance and safety
EN IEC 60204-1:2019, Safety of machinery. Electrical equipment of machines. General requirements
EN IEC 60447:2004, Basic and safety principles for man-machine interface, marking and identification -
Actuating principles
EN 61000-6-4, Electromagnetic compatibility (EMC) — Part 6-4: Generic standards — Emission standard
for industrial environments (IEC 61000-6-4:2006 + A1: 2010)
2 © ISO 2020 – All rights reserved

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EN IEC 62745:2017, Safety of machinery - General requirements for cableless control systems of machinery
(IEC 44/728/CDV)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Traction aid
Working method in which a forest machine is using an assisting rope to support the machine’s own
tractive or braking effort by a regulated pulling and/or braking force which is kept constant or
regulated according to the slip or other traction defined parameters of the supported machine while
the supported machine when stopped remains stationary on the slope travelled upon without any
further rope assistance; see Annex D.
3.2
Traction aid winch
A winch normally mounted on the self-propelled forest machine itself or placed separately providing
additional traction and braking force to a forest machine on steep slopes or under unfavourable soil
conditions in a regulated way in accordance with the machine‘s speed or the slip of its drivetrain, which
consists mainly of a rope, a power driven drum or a capstan power transmission and spooling devices
and control devices, attached to the base machine’s frame or installed remotely.
3.3
Rope
Steel wire rope used in traction aid winches complying with EN 12385-5.
3.4
Rope diameter d
Diameter of the steel wire rope used in a traction aid winch
3.5
Service mass
Mass of the supported machine including the operating mass of the supported machine, and if the winch
is mounted onto it, the mass of the winch system including rope and permitted payload.
3.6
Drum core diameter A
Diameter of the rope drum core in millimetres
3.7
Drum rim diameter B
Diameter of the rope drum rim in millimetres
3.8
Drum width C
Distance between the rims of the rope drum, measured in millimetres at the half depth of the flange
minus the width of the rope free space on the drum in millimetres
3.9
Flange depth D
Radial distance from the outer diameter of the rope drum rim to the rope drum core in millimetres
3.10
Safety overhang S
Overhang in millimetres from the outer part of the winch rim or housing, which shall remain free when
storing the entire rope length in order to ensure that the rope remains in the drum
Note 1 to entry: Measures 3.5 to 3.9 shall be used to calculate necessary safety distance on drums such as flanged
pulleys, frames/housings or rope guides.
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3.11
Chain drive
Power transmission system consisting of roller chains, driven and non-driven chain wheels and chain
fastenings
3.12
Rope deflection angle
The angle between the actual running direction of the rope and a line perpendicular to the drum axis
or the groove direction of the drum grooving while they are projected on a plane through the drum axis
and parallel to the incoming direction of the rope
3.13
Power transmission
Two or more connected parts that transmit power
3.14
Maximum speed
Highest possible speed in the intended direction of movement
3.15
Pulling
Working action where the traction aid winch is spooling the rope while transferring a force between
the assisted vehicle and an anchoring point at the body of the winch
3.16
Dynamic Braking (retarder action)
Working action where the traction aid winch is unspooling rope while transferring a force between the
assisted vehicle and an anchoring point or the body of the winch
3.17
Static Braking (holding brake)
Working action where the traction aid winch is set fixed up to a predetermined force which is thus
transferred between the supported machine and the anchoring point in order to hold the supported
machine at a given position while it will allow the traction aid winch to unwind once a given maximum
holding force is exceeded.
3.18
Nominal tensile force
Nominal tensile force/rated pulling force is the minimum breaking force of a rope divided by the
required working coefficient (safe working limit).
3.19
Overload protection
Device which automatically prevents impermissible high loads at the winch during operation
3.20
Rope drive
System of ropes which run on rope drums and via rope pulleys as well as rope fastening parts
3.21
Rope end connector
Device situated at the free end of a winch rope which has direct contact to the rope that enables
connection of the rope to the load, the supported machine, an anchoring point or allows transferring
the rope force onto fastening gear.
Note 1 to entry: The rope end connector is capable of transmitting the rope force between elements (e.g. from the
rope through shackles to an attachment point).
3.22
Rope fastening on the rope drum
All parts with which the rope is fastened on the rope drum
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3.23
Fastening equipment
Parts and devices that form the connection between the anchoring point and the rope or between an
anchoring point and an additional deflection pulley
Note 1 to entry: Note Shackles, loop fastening straps, round slings or rope slings together with shackles are
recognized fastening equipment.
3.24
Fastening gear
Equipment and devices for fastening the load to be pulled to a hauling rope
Note 1 to entry: Note Choker chains, choker ropes are recognized fastening gear
3.25
Deflection pulley
Fastened component of the rope drive, generally installed at a location away from the traction aid winch
system, which allows the rope to deflect angles <= 180 ° from its initial direction
3.26
Guide roller
Fixed component of the rope drive, generally forming part of the traction aid winch system, which
allows the rope to deflect a desired angle from its initial direction
3.27
Pressure roller
Fixed component of the rope drive with the task of ensuring adequate spooling quality
3.28
Installation mode
Operation mode in which the traction aid winch is operated manually for winching and spooling in
order to connect winch, anchoring points and supported machine
3.29
Synchronized mode
Operation mode in which the traction aid winch is operated automatically with either pre-set pulling
and braking forces or other traction relevant parameters and with a speed of the winch which is
regulated according to the forward or reverse speed of the supported machine.
Note 1 to entry: Control is normally effectuated by regulation of the rope force
3.30
Auxiliary mode
Operation mode in which the traction aid winch is operated manually for pulling purposes foreseen by
the manufacturer
3.31
Supported machine
Self-propelled forest machine as defined in ISO 6814 equipped with a fixed or removable traction aid
winch or attached to a remote traction aid winch to which the traction aid winch system transfers a
pulling or a braking force at a rope speed regulated according to the speed of such a forest machine in
order to facilitate its mounting or descending slopes or help to overcome unfavourable soil conditions
3.32
Rope speed
Speed of the rope with reference to the position of the traction aid winch at which the rope is spooled or
unspooled by the traction aid system especially in synchronized mode
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3.33
Working coefficient
The working coefficient shall be determined from the ratio of the minimum breaking force of the rope
and the maximum applied force to the rope (this means active pulling or dynamic braking) with the
maximum applied force resulting from the operation of the force limiter.
3.34
Rated pulling force
Maximum nominal pulling force for which a traction aid winch has been designed by the manufacturer
3.35
Proper spooling
Way of spooling on a winch where the rope windings are situated one next to the other in layers which
cover the whole width of the drum and which does not allow rope from an upper layer to slip down into
a lower layer (see Annex B).
3.36
Attachment point
Connecting point at the supported machine which is designed for attaching the rope of a remote traction
aid winch
3.37
Anchoring point
Fixed point in the area of the upper end of the driving path of a supported machine with sufficient
bearing capacity (e.g. on a tree, on a heavy mobile machine or in the ground) used to attach the rope
of an integrated traction aid winch or the body of a remote traction aid winch to provide sufficient
counter bearing for the arising forces of the rope of the respective traction aid winch
3.38
Sheave
Rotary mounted cylindrical device, usually fitted with grooves around which the winching rope is
wound partially or several times, which is used to deflect the pulling direction of a rope a given angle
3.39
Traction sheave
Sheave connected to a driving shaft around which the winching rope is wound partially or several times
in order to enable the transfer of a pulling or a braking force t
...

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