EN 12965:2019+A1:2025
(Main + Amendment)Tractors and machinery for agriculture and forestry - Power take-off (PTO) drive shafts and their guards - Safety
Tractors and machinery for agriculture and forestry - Power take-off (PTO) drive shafts and their guards - Safety
This document specifies safety requirements and their verification for the design and construction of power take-off (PTO) drive shafts and their guards linking a tractor or self-propelled machinery to the first fixed bearing of recipient machinery. It describes methods for the elimination or reduction of risks which need specific requirements including such risks arising from misuse, reasonably foreseeable by the manufacturer. It is applicable only to those PTO drive shafts and guards mechanically linked to the shaft by at least two bearings.
In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
This document does not deal with:
- the guards totally covering, but not mechanically linked to, the PTO drive shaft;
- the mechanical characteristics of PTO drive shafts, overrun devices and torque limiters;
- general hazards which are dealt with in EN ISO 4254-1:2015 (see introduction).
Environmental aspects have not been considered in this document.
This document is not applicable to PTO drive shafts and their guards which are manufactured before the date of publication of this document by CEN.
Traktoren und Maschinen für die Land- und Forstwirtschaft - Gelenkwellen und ihre Schutzeinrichtungen - Sicherheit
Tracteurs et matériels agricoles et forestiers - Arbres de transmission à cardans de prise de force et leurs protecteurs - Sécurité
Traktorji ter kmetijski in gozdarski stroji - Priključne gredi in njihova zaščita - Varnost (vključno z dopolnilom A1)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2025
Traktorji ter kmetijski in gozdarski stroji - Priključne gredi in njihova zaščita -
Varnost (vključno z dopolnilom A1)
Tractors and machinery for agriculture and forestry - Power take-off (PTO) drive shafts
and their guards - Safety
Traktoren und Maschinen für die Land- und Forstwirtschaft - Gelenkwellen und ihre
Schutzeinrichtungen - Sicherheit
Tracteurs et matériels agricoles et forestiers - Arbres de transmission à cardans de prise
de force et leurs protecteurs - Sécurité
Ta slovenski standard je istoveten z: EN 12965:2019+A1:2025
ICS:
65.060.01 Kmetijski stroji in oprema na Agricultural machines and
splošno equipment in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12965:2019+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2025
EUROPÄISCHE NORM
ICS 65.060.01 Supersedes EN 12965:2019
English Version
Tractors and machinery for agriculture and forestry -
Power take-off (PTO) drive shafts and their guards - Safety
Tracteurs et matériels agricoles et forestiers - Arbres Traktoren und Maschinen für die Land- und
de transmission à cardans de prise de force et leurs Forstwirtschaft - Gelenkwellen und ihre
protecteurs - Sécurité Schutzeinrichtungen - Sicherheit
This European Standard was approved by CEN on 16 September 2019 and includes Amendment 1 approved by CEN on 29
December 2024.
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 12965:2019+A1:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Safety requirements and/or measures . 11
4.1 General requirements . 11
4.1.1 !General safety standard" . 11
4.1.2 !Other general requirements" . 11
4.2 Overlap on PTO side . 12
4.2.1 Universal joint . 12
4.2.2 Wide-angle universal joint . 13
4.3 Wide-angle guard cone requirements . 14
4.4 PTO drive shaft guard . 15
4.4.1 General . 15
4.4.2 Restraining system . 16
4.5 Service and maintenance . 16
4.5.1 Lubrication requirements. 16
4.5.2 Maintenance requirements . 16
4.6 Locking system on PTO yoke and PIC yoke . 16
4.6.1 General . 16
4.6.2 Locking system on PTO yoke. 17
4.6.3 Locking system on PIC yoke . 17
5 Verification of safety requirements and/or measures . 17
5.1 General . 17
5.2 Test for guarding the universal joints including wide-angle . 17
5.3 Entanglement test . 19
5.3.1 General . 19
5.3.2 Test conditions . 19
5.3.3 Test sample . 21
5.3.4 Test procedure . 22
5.3.5 Acceptance criteria . 24
5.3.6 Test report . 25
6 Information for use . 25
6.1 Operator's manual . 25
6.2 Marking . 26
6.2.1 General . 26
6.2.2 Instructional signs . 27
6.2.3 Safety signs . 27
Annex A (informative) List of significant hazards . 30
Annex B (informative) Procedure of how to put the test sample together . 33
B.1 General . 33
B.2 1st package of the test sample (see Figure B.1) . 33
B.3 2nd package of the test sample (see Figure B.2) . 34
B.4 3rd package of the test sample (see Figure B.3) . 35
B.5 Putting together the three packages to a test sample . 35
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC aimed to be covered. 38
Bibliography . 41
European foreword
This document (EN 12965:2019+A1:2025) has been prepared by 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 2025, and conflicting national standards
shall be withdrawn at the latest by September 2025.
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 12965:2019"
The main changes [in EN 12965:2019] compared to the previous edition [EN 12965:2003+A2:2009] are
as follows:
— precision of the general requirements;
— addition of PTO type 4;
— precision of the requirements for the restraining system;
— addition and precision of the requirements for service and maintenance;
— addition of requirements for the locking system;
— addition of an entanglement test;
— addition of new pictogram required to highlight compatibility of guarding systems of PTO drive
shaft with tractor and machinery.
The following technical modifications have been made [in EN 12965:2019 for
— Modification to subclause 4.1;
— Modification to subclause 4.2.1;
— Modification to subclause 4.2.2.
These modifications require that also on PIC side, the guard covers the transmission to the ends of the
inner jaws in the case of simple universal joints and at least to the centre of the outer joint or joints in
the case of wide-angle universal joints.
This document includes Amendment 1 approved by CEN on 29 December 2024.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
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.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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.
Introduction
This document is a type C standard as defined in EN ISO 12100:2010.
The machinery concerned and the extent to which hazards, hazardous situations and events are
covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
Hazards that are common to agricultural machines (self-propelled, mounted, semi-mounted and
trailed) are dealt with in EN ISO 4254-1:2015. EN 12965 provides requirements for power take-off
(PTO) drive shafts in addition to those of EN ISO 425
...
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