SIST EN 17106-4:2021
(Main)Road operation machinery - Safety - Part 4: Road service area maintenance machines - Requirements for grass and brush cutting machines
Road operation machinery - Safety - Part 4: Road service area maintenance machines - Requirements for grass and brush cutting machines
This European Standard applies to machines used for road service area maintenance which are attached to or mounted on carrier vehicles (e.g. tractor, truck), or which are self-propelled machinery and which are defined in Clause 3. Directives and standards for the vehicular truck or tractor chassis aspect, termed 'carrier vehicle' in this standard, would be those relevant to that equipment.
For machinery which are a combination of a grass/brush-cutting attachment and a carrier-vehicle, this part of the standard applies to the grass or brush cutting attachment itself and with all health and safety requirements of the interaction and effects between attachment and the carrier vehicle when used together (e.g. stability, visibility).
For self-propelled machinery, this part only deals with health and safety requirements of the attachment itself and does not deal with the self-propelled machinery itself which are dealt with in EN 17106 1.
NOTE 1 Road regulations or Directive apply to vehicular truck and tractor.
NOTE 2 The use in public road traffic is governed by the national regulations.
This European Standard deals with all significant hazards identified through a risk assessment pertinent to road service area maintenance machines, when they are used as intended and under the conditions foreseen by the manufacturer (see Clause 4). This European Standard does not deal with significant hazards associated with EMC. This European Standard specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards associated with machine operation, setting and adjustments, load discharge and routine maintenance.
This European Standard does not include requirements for the carrier vehicles (e.g. trucks, tractors, construction machines, industrial trucks). These are covered in directives related to the construction of vehicles.
This European Standard does not deal with:
— walker-operated and hand-held machines;
— machines for the maintenance of sports grounds;
— machines for agriculture, horticulture and forestry;
— pit and sewer cleaning vehicles/-machines;
— grass and brush cutting machines with multiple cutting heads (see Annex A, Clause C.2, Figure C.20)
— vertical axis grass and brush cutting machines except inter-post machinery (see Annex A, Clause C.2, Figure C.22)
— horizontal axis grass and brush cutting machines with two rotors (see Annex A, Clause C.2, Figure C.23)
— self-propelled remote controlled machinery for road service area maintenance, except the mowing head
— self-propelled remote controlled machinery used for forestry application (see Annex A, Clause C.2, Figure C.21)
— cleansing and ditch maintenance machines (see Annex A, Clause C.2, Figure C.24 and C.25)
A machine which is a combination of several parts with different uses should conform to all the standards referring to the corresponding parts of the machine.
This document, together with part 1, deals with all significant hazards for road service area maintenance machines – grass and brush cutting machines when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in prEN 17106 1:2017.
This document does not repeat the requirements from prEN 17106 1:2017, but adds or replaces the requirements for application for grass and brush cutting machines.
This European Standard does not deal with the risks associated with the operation of machines in potentially explosive atmospheres.
This standard applies to machines manufactured after the date of approval of this standard through CEN.
Maschinen für den Straßenbetriebsdienst - Sicherheit - Teil 4: Maschinen für die Straßenunterhaltung – Anforderungen für Grasmähgeräte
Dieses Dokument ist auf Grasmähgeräte anwendbar, die an Trägerfahrzeugen (z. B. Traktor, Lastkraftwagen) angebaut oder montiert sind oder bei welchen es sich um selbstfahrende Maschinen handelt und die in Abschnitt 3 definiert sind.
Bei beweglichen Maschinen, welche eine Kombination aus einem angebauten Grasmähgerät und einem Trägerfahrzeug darstellen, behandelt dieser Teil der Norm die relevanten Gesundheits- und Sicherheitsanforderungen von Anhang I der Maschinenrichtlinie, die mit dem angebauten Grasmähgerät selbst verbunden sind, und die, die sich aus anderen Risiken ergeben, die nur im Zusammenhang mit der Kombination aus angebauten Grasmähgerät und dem Trägerfahrzeug auftreten (z. B. Schnittstellen zwischen dem Anbaugerät und dem Trägerfahrzeug, Stabilität bzw. Standfestigkeit, Sichtverhältnisse). Bei Maschinen, welche eine Kombination aus einem angebauten Grasmähgerät und einem Trägerfahrzeug darstellen, gilt dieser Teil der Norm nicht für das Trägerfahrzeug selbst, das anderen europäischen Vorschriften unterliegt.
Bei selbstfahrenden Maschinen ist dieser Teil ausschließlich auf die Gesundheits- und Sicherheitsanforderungen des Anbaugeräts selbst anwendbar und behandelt nicht die selbstfahrende Maschine an sich, welche durch EN 17106 1:2021 abgedeckt wird.
Die Anforderungen dieses Teils ergänzen die gemeinsamen Anforderungen, die in EN 17106 1:2021 formuliert sind.
Dieses Dokument wiederholt nicht die Anforderungen aus EN 17106 1:2021, enthält aber Abschnitte/Unterabschnitte, die die entsprechenden Abschnitte/Unterabschnitte des Teils 1 ergänzen oder ändern, um Anforderungen an Grasmähgeräte festzulegen.
Wenn Anforderungen dieses Dokuments von den in EN 17106 1:2021 festgelegten abweichen, haben die Anforderungen dieses Dokuments Vorrang vor den Anforderungen nach EN 17106 1:2021 an Maschinen, die nach den Bestimmungen dieses Dokuments ausgelegt und konstruiert wurden.
ANMERKUNG 1 Für fahrzeugähnliche Lastkraftwagen und Traktoren, die in dieser Norm als „Trägerfahrzeuge“ bezeichnet werden, gelten Straßenverkehrsvorschriften oder Richtlinien.
ANMERKUNG 2 Die Verwendung im öffentlichen Straßenverkehr unterliegt nationalen Regelungen.
Dieses Dokument behandelt alle signifikanten Gefährdungen, die im Rahmen einer Risikobewertung in Bezug auf Grasmähgeräte identifiziert werden, wenn diese Maschinen bestimmungsgemäß und unter den üblicherweise durch den Hersteller vorhersehbaren Bedingungen der falschen Anwendung (Transport, Montage, Demontage und Stillsetzung, siehe Anhang D) betrieben werden. Dieses Dokument legt darüber hinaus geeignete technische Maßnahmen zur Beseitigung oder Minderung von Risiken, welche aus den signifikanten Gefährdungen in Bezug auf den Betrieb, die Einstellung und Justierung der Maschine, das Abladen von Lasten und die routinemäßige Instandhaltung folgen, fest.
[...]
Machines d’exploitation des routes - Sécurité - Partie 4 : Machines d’entretien des dépendances routières - Prescriptions spécifiques pour les faucheuses et les débroussailleuses
Obratovanje cestnih strojev - Varnost - 4. del: Stroji za vzdrževanje cest - Zahteve za stroje za rezanje grmičevja in košnjo trave
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN 13019:2002+A1:2009
SIST EN 13021:2004+A1:2009
SIST EN 13524:2004+A2:2014
Obratovanje cestnih strojev - Varnost - 4. del: Stroji za vzdrževanje cest - Zahteve
za stroje za rezanje grmičevja in košnjo trave
Road operation machinery - Safety - Part 4: Road service area maintenance machines -
Requirements for grass and brush cutting machines
Maschinen für den Straßenbetriebsdienst - Sicherheit - Teil 4: Maschinen für die
Straßenunterhaltung – Anforderungen für Grasmähgeräte
Machines d’exploitation des routes - Sécurité - Partie 4 : Machines d’entretien des
dépendances routières - Prescriptions spécifiques pour les faucheuses et les
débroussailleuses
Ta slovenski standard je istoveten z: EN 17106-4:2021
ICS:
43.160 Vozila za posebne namene Special purpose vehicles
65.060.99 Drugi kmetijski stroji in Other agricultural machines
oprema and equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17106-4
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 43.160; 93.080.99; C Supersedes EN 13019:2001+A1:2008, EN
13021:2003+A1:2008, EN 13524:2003+A2:2014
English Version
Road operation machinery - Safety - Part 4: Road service
area maintenance machines - Requirements for grass and
brush cutting machines
Machines d'exploitation des routes - Sécurité - Partie 4 Maschinen für den Straßenbetriebsdienst - Sicherheit -
: Machines d'entretien des dépendances routières - Teil 4: Maschinen für die Straßenunterhaltung -
Prescriptions spécifiques pour les faucheuses et les Anforderungen für Grasmähgeräte
débroussailleuses
This European Standard was approved by CEN on 16 August 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17106-4:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 7
4 Safety requirements and/or protective/risk reduction measures . 8
4.1 General . 8
4.2 Additional requirements and/or measures for permanently mounted equipment,
interchangeable equipment and trailed machines . 8
4.3 Precautions against hazards caused by moving parts excluding cutting head . 13
4.4 Interfaces . 13
4.5 Unintended lowering of the equipment . 13
4.6 Special protection of the cutting head against objects being ejected . 14
4.7 Controls for machines using revolving/oscillating tools . 14
4.8 Special protection measures to prevent unintentional contact with revolving tools in the
operating area of grass-cutting machines . 14
5 Verification of safety requirements or protective measures . 18
6 Information for use . 19
6.1 General . 19
6.2 Warning signs . 19
6.3 Instructions handbook . 20
Annex A (normative) Stipulations on the design and testing of grass and/or brush-cutting
machines . 21
Annex B (informative) Thrown-object test reports – Machines . 45
Annex C (informative) Drawings . 50
Annex D (informative) List of significant hazards . 57
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive2006/42/EC aimed to be covered . 62
European foreword
This document (EN 17106-4:2021) has been prepared by Technical Committee CEN/TC 151 “Construction
equipment and building material machines - Safety”, the secretariat of which is held by DIN.
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 April 2022, and conflicting national standards shall be withdrawn at the latest
by April 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 supersedes EN 13019:2001+A1:2008, EN 13021:2003+A1:2008 and EN 13524:2003+A2:2014.
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).
For relationship with EU Directive(s), see informative Annex ZA which is an integral part of this document.
EN 17106:2021 consists of the following parts under the general title “Road operation machinery – Safety”:
— Part 1: General requirements
— Part 2: Specific requirements for road surface cleaning machines
— Part 3-1: Winter service machines - Specific requirements for snow clearing machines with rotating tools
and snow ploughs
— Part 3-2: Winter service machines - Specific requirements for spreading machines
— Part 4: Road service area maintenance machines - Specific requirements for grass and brush cutting
machines
The significant technical changes introduced in this standard, are related to the risks resulting from the
combination of a grass/brush-cutting attachment with a vehicle (truck, tractor or self-propelled machinery), in
terms of stability, mechanical interfaces, ergonomics of the control system in the cabin and visibility.
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, Turkey and the United Kingdom.
Introduction
This document is a type-C standard as stated in EN 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 organizations, 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:
— distributors;
— machine users/employers;
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers (e.g. for maintenance);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting process
of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or type-B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C standard.
1 Scope
This document applies to grass and/or brush cutting machinery which are attached to or mounted on carrier
vehicles (e.g. tractor, truck), or which are self-propelled machinery and which are defined in Clause 3.
For mobile machinery, which are a combination of a grass/brush-cutting attachment and a carrier-vehicle, this
part of the standard addresses the relevant health and safety requirements of Annex I of the machinery directive
which are inherent to the grass or brush cutting attachment itself and those resulting from the other risks which
are only related to the combination of the grass/brush-cutting attachment with the carrier vehicle (e.g. interfaces
between the attachment and the carrier-vehicle, stability, visibility). For machinery which are a combination of
a grass/brush-cutting attachment and a carrier-vehicle, this part does not deal with the carrier vehicle itself
which is covered by another European legislation.
For self-propelled machinery, this part only deals with health and safety requirements of the attachment itself
and does not deal with the self-propelled machinery itself which are dealt with in EN 17106-1:2021.
The requirements of this part are complementary to the common requirements formulated in EN 17106-1:2021.
This document does not repeat the requirements from EN 17106-1:2021, but contains clauses/subclauses which
supplement or modify the corresponding clauses/subclauses of part 1 to provide requirements for grass and/or
brush cutting machinery.
When requirements of this document are different from those which are stated in EN 17106-1:2021, the
requirements of this document take precedence over the requirements of EN 17106-1:2021 for machines that
have been designed and built according to the provisions of this document.
NOTE 1 Road regulations or Directives apply to vehicular trucks and tractors, termed ‘carrier vehicles’ in this standard.
NOTE 2 The use in public road traffic is governed by the national regulations.
This document deals with all significant hazards identified through a risk assessment pertinent to grass and/or
brush cutting machinery, when they are used as intended and under the conditions of misuse which are
reasonably foreseeable by the manufacturer (transportation, assembly, dismantling and disabling, see Annex D).
This document specifies also the appropriate technical measures to eliminate or reduce risks arising from the
significant hazards associated with machine operation, setting and adjustments, load discharge and routine
maintenance.
This document does not deal with:
— walker-operated and hand-held machines;
— machines for the maintenance of sports grounds;
— machines for agriculture, horticulture and forestry;
— pit and sewer cleaning vehicles/-machines;
— grass and brush cutting machines with multiple cutting heads (see Figure C.20);
— vertical axis grass and brush cutting machines except inter-post machinery (see Figure C.22);
— horizontal axis grass and brush cutting machines with two rotors (see Figure C.23);
— self-propelled remote-controlled machinery for road service area maintenance, except the mowing head;
— self-propelled remote-controlled machinery used for forestry application (see Figure C.21);
— cleansing and ditch maintenance machines (see Figures C.24 and C.25).
This document does not deal with the risks associated with the operation of machines in potentially explosive
atmospheres and risks associated with electro-magnetic compatibility, vibrations and slewing cab of self-
propelled machinery.
This document does not address the safety requirements related to noise declaration.
This document is not applicable to grass and/or brush cutting machinery 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.
EN 15436-1:2008, Road service area maintenance equipment - Part 1: Terminology
EN 17106-1:2021, Road operation machinery - Safety - Part 1: General requirements
EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO
12100:2010)
EN ISO 13850:2015, Safety of machinery - Emergency stop function - Principles for design (ISO 13850:2015)
ISO 536:2019, Paper and board - Determination of grammage
ISO 730:2009, Agricultural wheeled tractors - Rear-mounted three-point linkage - Categories 1N, 1, 2N, 2, 3N, 3,
4N and 4
ISO 789-1:2018, Agricultural tractors - Test procedures - Part 1: Power tests for power take-off
ISO 1974:2012, Paper - Determination of tearing resistance - Elmendorf method
ISO 2758:2014, Paper - Determination of bursting strength
ISO 3416:1986, Textile floor coverings - Determination of thickness loss after prolonged, heavy static loading
ISO 6750-1:2019, Earth-moving machinery - Operator’s manual - Part 1: Contents and format
ISO/TR 6750-2:2021, Earth-moving machinery - Operator’s manual - Part 2: List of references
ISO 11001-1:2016, Agricultural wheeled tractors - Three-point hitch couplers - Part 1: U-frame coupler
ISO 11001-2:1993, Agricultural wheeled tractors and implements - Three-point hitch couplers - Part 2: A-frame
coupler
ISO 11001-3:2009, Agricultural wheeled tractors and implements - Three-point hitch couplers - Part 3: Link coupler
ISO 11001-4:1994, Agricultural wheeled tractors and implements - Three-point hitch couplers - Part 4: Bar coupler
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010, EN 15436-1:2008,
EN 17106-1:2021 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
road service area maintenance machine
machine situated at the traffic surface which, from this position, prepares the traffic surface and its neighbouring
areas
3.2
grass-cutting machinery
road service area maintenance machine specifically designed and manufactured for grass-cutting operations (for
example, see Figures C.1, C.2 and C.18)
Note 1 to entry: Grass-cutting machinery can be self-propelled or mounted at rear, front or laterally of a carrier-vehicle.
3.3
brush-cutting machinery
road service area maintenance machine specifically designed and manufactured for brush-cutting operations
(for example, see Figures C.1, C.2 and C.19)
Note 1 to entry: Brush-cutting machinery can be self-propelled or mounted at rear, front or laterally of a carrier-vehicle.
3.4
grass/brush-cutting machinery
road service area maintenance machine specifically designed and manufactured for grass and brush-cutting
operations (for example, see Figures C.1, C.2, C.18 and C.19)
Note 1 to entry: Grass/brush-cutting machinery are also named mixed machinery and can be self-propelled or mounted
at rear, front or laterally of a carrier-vehicle.
3.5
inter-post machinery
grass-cutting machine specifically designed to remove vegetation around and between posts (see Figures C.3 and
C.4)
3.6
releasing device
device ensuring that the cutting head of the grass and/or brush cutting machinery is mechanically or
hydraulically released when encountering an obstacle
3.7
primary control
manual control designed to operate the machine and which control main functions for frequent use
3.8
secondary control
device to control the machine functions which need low frequent use
Note 1 to entry: Devices can be monitor or display.
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Grass and/or brush cutting machines shall comply with the safety requirements and/or protective/risk
reduction measures of this clause. In addition, the machines shall be designed according to the principles of
EN ISO 12100:2010 for relevant but not significant hazards which are not dealt with by this document.
Grass and/or brush cutting machines shall comply with the requirements of EN 17106-1:2021, as far as not
modified or replaced by the requirement of this part.
Where the means of reducing the risk is by a safe system of working the machinery, Clause 6 specifies the
minimum required information regarding details of the system and of the elements of training required by the
operating personnel to be provided in the Information for use.
4.2 Additional requirements and/or measures for permanently mounted equipment,
interchangeable equipment and trailed machines
4.2.1 General
EN 17106-1:2021, 4.3.1 applies with the following addition:
The design and mounting of the grass and/or brush cutting machinery shall conform to the requirements of the
carrier vehicle defined by its manufacturer.
4.2.2 Provisions for transport, storage, mounting, dismounting and stability
EN 17106-1:2021, 4.3.4 applies with the following addition:
The off-side wheel (i.e. opposite to the side where the attachment is used in operation) shall have at least 15 %
of the total weight applied on the axle in the most unfavourable configuration, especially for the working position
(see Figure 1).
In transport position, the attachment shall not exceed the rear/front axle track (see Figure 2).
For rear-mounted articulated arm-type machinery, the following requirements apply:
— P1 + P2 + P3 < Maximum operating mass of the carrier-vehicle (Gross vehicle mass);
— P3 < Maximum Load on rear wheel;
— P1 / (P1 + P2 + P3) > Lateral stability coefficient (coeff “zone preferred” chosen 15 %);
— P2 / (P1 + P2 + P3) > Frontal stability coefficient (coeff “zone preferred” chosen 15 %).
If the coordinates of the centre of gravity on the plane represented in Figure 1 are known, then it has to be verified
that the centre of gravity falls inside the stability triangle.
Therefore:
y≥0
2E
y≤+xE
V
2E
y≤− xE+
V
With origin O (0;0) taken in the middle of the basis of the triangle (see Figure 1 or Figure 2) and with following
parameters:
— P1, P2 and P3: equivalent load applied to the ground;
— V, rear axle track;
— E, wheelbase;
— x and y, coordinates on the ground plane of the centre of gravity of the total gross weight (combination of
the carrier-vehicle and the machinery), in the most extended arm position of the machinery for the purpose
of lateral stability.
Figure 1 — Working position
Figure 2 — Transport position
The same calculation method shall be used for other mounting configurations.
4.2.3 Controls
EN 17106-1:2021, 4.3.2 applies.
EN 17106-1:2021, 4.1.4.1 applies with the following additions and/or modifications:
Controls shall be protected against inadvertent contact.
Controls for all the movements of the arm and of the mowing head shall be hold-to-run type, except the control
of the activation of the rotating tools, except the floating control of the mowing head and except functions
designed to reduce operator fatigue and protect machine structure.
Controls shall be located on the side the operating area; they shall be located in order to minimize the obstruction
to visibility caused by their presence.
For application of EN17106-1:2021, 4.1.4.1 control panel shall be considered as secondary hand control.
By exception to EN 17106-1:2021, 4.1.4.1 primary hand controls shall be located in zone 1 (see Figures 3 or 4).
If not possible due to technical constraints in relation with the carrier vehicle design (e.g. controls of the carrier
vehicle already positioned in zone 1 that leaves no space available for additional controls in this zone), they shall
be located in zone 2 (see Figures 3 or 4).
Dimensions in millimetres
Key
1 Zone 1 (comfort zone)
2 Zone 2 (acceptable zone under specific conditions)
Figure 3 — Definition of comfort and acceptable zones for primary hand controls on the right side
Dimensions in millimetres
Key
1 Zone 1 (comfort zone)
2 Zone 2 (acceptable zone under specific conditions)
Figure 4 — Definition of comfort and acceptable zones for primary hand controls on the left side
4.2.4 Visibility
EN 17106-1:2021, 4.3.3 does not apply and EN 17106-1:2021, 4.1.3 applies with the following modifications:
EN 17106-1:2021, 4.1.3.1 and EN 17106-1:2021, 4.1.3.2 apply.
EN 17106-1:2021, 4.1.3.3 is replaced by the following requirement:
In case of lack of direct or indirect visibility on the cutting head of the machine from the operator's station, a
releasing device (see 3.6) shall be fitted on the equipment.
4.3 Precautions against hazards caused by moving parts excluding cutting head
EN 17106-1:2021, 4.1.5 applies with the following additions:
Rotating or oscillating machine parts on grass and/or brush cutting machinery shall be protected against
unintentional contact by means of guards which conform to EN 17106-1:2021, 4.1.5.
4.4 Interfaces
EN 17106-1:2021, 4.3.5 applies.
EN 17106-1:2021, 4.3.5.1, 1st sentence applies with the following addition:
For the mechanical interface complying with ISO 730:2009, ISO 11001-1:2016, ISO 11001-2:1993,
ISO 11001-3:2009 or ISO 11001-4:1994 shall also be used in conjunction with ISO 730:2009.
4.5 Unintended lowering of the equipment
a) The machine when used as intended shall prevent any unintended lowering of the mowing head and/or
boom.
NOTE 1 Unintended lowering is when a mowing head or boom runs back or descends because of an interruption or
an irregularity in the energy supply.
This requirement shall be achieved by the provision of:
— non-return valves or a corresponding function in the control valves of hydraulic or pneumatic lifting
devices, or;
— self-locking driving gear or an automatic drop-latch arrangement with a ratchet wheel for mechanical
winches, or;
— a control valve as a back-run safety mechanism, only if the adoption of non-return valves is technically
not possible.
b) Where persons have to stand under raised or tilted machines or components for maintenance purposes
thereof as part of the working procedure, unintended lowering shall be prevented. This can be achieved, for
example, by:
NOTE 2 The term “as part of working procedure” does not cover repair work.
— automatically engaging mechanical locks, or;
— externally unlocking non-return valves mounted directly on the lifting cylinder, or;
— mechanical safety mechanisms which are operated from outside of the danger zone.
c) Power-driven lifting devices shall not permit equipment to fall freely in an uncontrolled manner.
In hydraulic or pneumatic systems, this requirement is satisfied when the reverse flow is restricted e.g. by a
non-return valve, only if the adoption of non-return valves is technically not possible, an appropriately sized
orifice can be accepted.
d) Control valves and devices to protect lifting mechanisms against free-fall shall be so designed to ensure that
any variation of their setting is possible only with the aid of tools.
e) Demounting devices for demountable bodywork and components shall be designed and constructed to safely
support the equipment during the mounting or demounting process.
4.6 Special protection of the cutting head against objects being ejected
Machines shall be designed with protective measures (e.g. guards, chains, rubber plates) to prevent objects being
ejected uncontrollably by rotating tools towards the operator and into traffic areas where there is vehicular
and/or pedestrian traffic.
For grass and/or brush cutting machines and inter-post machinery, the testing method and verification means
given in Annex A shall be used.
4.7 Controls for machines using revolving/oscillating tools
EN 17106-1:2021, 4.1.4.5.3 applies with the following addition:
For hydraulic machines, it shall be possible to stop revolving or oscillating tools whilst the power source (i.e.
engine) remains running. It shall be possible to prevent the tools from being accidentally re-started.
The category of stop shall be Category '0' according to EN ISO 13850:2015, 4.1.4 (e.g. for blocking the fluid power
supply to the hydraulic/pneumatic machine actuators).
4.8 Special protection measures to prevent unintentional contact with revolving tools in the
operating area of grass-cutting machines
EN 17106-1:2021, 4.1.5 applies with the following addition:
Taking into account the necessity to be able to carry out grass-cutting operations in the direct vicinity of fixed
obstacles (e.g. delineators, traffic signs), the protective equipment shall be designed as follows.
a) Guard on grass -cutting machines in the direction of feeding and ejecting:
Guards in the direction of feeding and ejecting, e.g. deflector bar, shall be arranged as shown in Figure 5. The
spacing shall be measured from the path of rotation of the tools, where the grass-cutting machine is in the
operating position.
The removal or opening of guards shall only be possible using tools. For transportation these guards can be
removed or arranged on hinges.
Dimensions in millimetres
Key
1 Area within the guard (e.g. deflector bar)
2 Path of rotation of the tool
3 Ground
Figure 5 — Grass-cutting machine with a horizontal axis in the operating position – Protection by
means of deflector bar
In addition to, or instead of, the described protective means, covering guards are permissible which shall be
arranged in the vicinity of the tools in such a way that their bottom edges are at least 3 mm below the path
of rotation of the tools (see Figure 6).
Dimensions in millimetres
Key
1 Protection device
2 Path of rotation of the tool
3 Ground
Figure 6 — Grass-cutting machine with vertical axis in the operating position – Covering guard
b) Lateral protection on grass-cutting machines with a horizontal axis may be attained by using guards which
shall be arranged in the vicinity of the tools in such a way that their bottom edge is at least 3 mm over the
path of rotation of the tools. Above the point M the guards shall be at least 150 mm over the path of rotation
of the tools. Below the point M the guards shall not be arranged above the line W (see Figure 7).
Key
1 Path of rotation of the tool
2 Ground
a Radius of tool path of rotation
b Radius of tool path of rotation + min. 3 mm
c Distance between M and V (max. 120 mm)
d Safety gap of min. 150 mm from tool path of rotation
E Point on the circle with radius b in the vertical plane which encloses the rotating axis
V Horizontal line through point E
W Line which runs straight through point M and tangential to the circle with radius b
Figure 7 — Grass-cutting machines with a horizontal axis – Lateral protection by means of covering
guard
5 Verification of safety requirements or protective measures
Safety requirements and/or protective measures of Clauses 4 and 6 of this document shall be verified according
to Table 1.
Table 1 sets out verification methods which shall be applied for each safety requirements in this document.
Where X(s) is indicated in the table, the corresponding verification method(s) shall be applied.
Table 1 shall be read in conjunction with the corresponding clauses.
Table 1 includes the following verification methods:
a) calculation: the results of which being to establish that the requirements of this European Standard have
been met;
b) visual verification: the result of which only being to establish that something is present (e.g. a guard, a
marking, a document);
c) measurement: the result of which shows that the required numerical values have been met (e.g. geometric
dimensions, safety distances, resistance of insulation of the electric circuits, noise, vibrations);
d) functional tests: the result of which shows that the adequate signals intended to be forwarded to the main
control system of the complete machine are available and comply with the requirements and with the
technical documentation;
e) special verification: the procedure being given or in the referred clause.
Table 1 — Verification of safety requirements and/or protective measures
4.1 General X
4.2 Additional requirements and/or
measures for permanently mounted
equipment, interchangeable
equipment and trailed machines
4.2.1 General X
4.2.2 Provisions for transport, mounting, X X
dismounting and stability
4.2.3 Controls X X
4.2.4 Visibility X X
4.3 Precautions against hazards caused X
by moving parts excluding cutting
head
Clause number
Title
a) Calculation
b) Visual verification
c) Measurement
d) Functional test
e) Special verification
(see at the end of this
table)
4.1 General X
4.4 Interfaces X
4.5 Unintended lowering of the X
equipment
4.6 Special protection against objects X X
being ejected
4.7 Controls for machines using X
revolving/oscillating tools
4.8 Special protection measures to X X X
prevent unintentional contact with
revolving tools in the operating area
of grass-cutting machines
6 Information for use
6.1 General X
6.2 Instructions handbook X
6 Information for use
6.1 General
Where the means of reducing the risk is by a safe system of working the machinery, the manufacturer shall
include in the information for use details of the system and of the elements of training required by the operating
personnel.
EN 17106-1:2021, Clause 6 applies with the following addition:
The following user information (6.2) shall be accompanied with the machine.
6.2 Warning signs
Appropriate warning signs shall be provided on grass and/brush-cutting machinery, indicating the type of
danger and the measures to be taken to avoid it.
As a minimum, a warning sign shall refer to the instructions handbook.
Clause number
Title
a) Calculation
b) Visual verification
c) Measurement
d) Functional test
e) Special verification
(see at the end of this
table)
6.3 Instructions handbook
Grass and/or brush cutting machinery shall be provided on delivery with operating instructions in accordance
with ISO 6750-1:2019 and ISO/TR 6750-2:2021.
The instructions handbook shall include at least the following information:
— information on the intended use;
— use of carrier vehicle with enclosed cab for reducing residual risks, e.g. thrown objects;
— instructions for the allowed combinations of tools (e.g. grass flails, brush flails) and changeable working
attachment (i.e. cutting head);
— advice that grass and/or brush cutting machinery shall only be operated by personnel who are specially
trained in safe working practices with this machine, and the elements of training involved;
— information on weight, location of centre of gravity and dimensions for transport, mounting and fixing of
demountable attachment (e.g. interchangeable equipment) on a carrier vehicle;
— information on attachment points for lifting the machine;
— information on safe use of means of support for demountable machinery (i.e. interchangeable equipment);
— description of the controls;
— information on the risks which cannot be ruled out despite the safety measures incorporated by the designer
(e.g. ejected objects, risk of injury through rotating tools, possible presence of wires in the vegetation during
brush-cutting operation);
— information on personal protective equipment;
— if a blockage is likely to occur, information on the method to be followed for safely unblocking;
— advice for special care and attention with regard to persons and road users;
— advice that maintenance work on hydraulic systems are only to be carried out by specially trained personnel;
— information that there may be a negative effect on the driving characteristic of the vehicle, caused by changes
in the location of the centre of gravity of the whole machine and by the reduction in stability caused by the
addition of demountable machinery or caused by exceptional slopes;
— information on regular checking of the working implements, the protection devices and their fixing;
— instructions in case of interruption of power supply;
— information about the emergency exit, that is the need to identify a new one in case of obstruction by fitting
the attachment;
— information about the minimum distance regarding to overhead power lines.
Annex A
(normative)
Stipulations on the design and testing of grass and/or brush-cutting machines
A.1 Thrown object test of grass and/or brush-cutting machines (including inter-post
machinery)
The thrown object test determines the effectiveness of the guard of grass-cutting machines (including inter-post
machinery) against ejection of objects expected to be on the ground. This thrown object test is also used for
brush-cutting machinery in order to simulate the effectiveness of the guarding of brush-cutting machines against
ejection of crushed bushes and thick bramble bushes (see EN 15436-1:2008).
The test involves driving the running machine into cone-shape mounds of gravel. The number of ejected stones
is then counted.
A.2 Testing conditions
A.2.1 Machines used for test
A.2.1.1 General
Tests shall be performed using the same machine, and the same guards. If the machine can be operated in
different working positions, the test shall be performed with the cutting head in the outmost working positions
in respect of the carrier vehicle as specified by the manufacturer in the operator's manual. This does not apply
to articulated arm-type machines.
NOTE The thrown objects tests can be done with one suitable single carrier-vehicle (dedicated to these tests).
Moreover, for articulated arm-type machinery, the thrown objects tests for each type of cutting head shall be
done, if possible, with one long enough articulated arm in order to perform the test as described in A.3.3
(Figure A.7). The location of the fixing point of the arm on the carrier-vehicle is freely determined by the
manufacturer, provided that all the functional parameters (e.g. rotating speed of the tool, control functions)
remain unchanged.
A.2.1.2 Machinery adjustment
A.2.1.2.1 General
Adjustable guards (e.g. multi-positions front deflector) and/or other part(s) of the machinery (e.g. housing)
which may influence the efficiency of the guards (e.g. front guard, rear guard, rear lateral guard) or other
protective measures to prevent projections, shall be located in the least favourable position.
NOTE Fixed guards which are only allowed to be removed for maintenance, repair and cleaning but not for application
reasons are not considered as adjustable guards.
A.2.1.2.2 Additional specific adjustment for grass-cutting machinery
If the machine has been designed to operate only in grass-cutting mode, the direction of rotation is the one
described in Figure C.18.
A.2.1.2.3 Additional specific adjustment for brush-cutting machinery
If the machine has been designed to operate only in brush-cutting mode (see Figure C.19), the direction of
rotation is the opposite of the grass-cutting mode and the front cover shall be opened for testing purposes.
A.2.1.2.4 Additional specific adjustment for mixed machinery
If the machine is designed to operate in grass and brush-cutting modes alternatively, the test shall be done for
both configurations according to A.2.1.2.2 and A.2.1.2.3.
A.2.1.3 Cutting height
Cutting height shall be adjusted at 50 mm. If this is not possible due to the design of the machine, cutting height
shall be adjusted as near as possible to 50 mm.
A.2.2 Test surface area
A.2.2.1 Ground conditions
Tests shall be performed on firm and horizontal hard ground.
EXAMPLE Concrete, asphalt.
A.2.2.2 Coconut matting
The test surface area shall be lined with coconut matting with fibres measuring approximately 20 mm in height
embedded in a support material. The determination of compression behaviour shall be carried out in compliance
with ISO 3416:1986.
A.2.2.3 Sand layer (natural, crushed or uncrushed)
The coconut matting shall be covered with a layer of sand and shall be distributed in such a way as to leave visible
the top of the coconut matting fibres. This condition has to be restored after each run.
A.2.2.4 Moisture
The test surface area shall be humidified to reach saturation point and be kept moist during the test.
A.2.3 Test material
A.2.3.1 Test material preparation
The mixture used as projectile material shall be made up by volume of:
— 50 % sand (natural, crushed, or uncrushed);
— 25 % gravel of mixture of grain size 8 mm to 16 mm (excluded);
— 25 % gravel of mixture of grain size 16 mm to 32 mm (excluded).
A.2.3.2 Moisture for test material
The test material shall be humidified to reach saturation point and be kept damp during the test. The mixture
shall be homogeneous.
A.2.3.3 Test material configuration
The test material mixture described in A.2.3 shall be placed in front of the machine, perpendicular to the forward
direction to form conical piles 150 mm ± 5 mm high or 100 mm higher than the machine cutting height. Each pile
shall consist of 10 L (or 0,01 m ) of the material. This may be achieved for example by using a device as shown
in Figure A.1.
Dimensions in millimetres
Key
1 volume of 10 L
Figure A.1 — Example of conical pile location device
A.3 Target
A.3.1 General
A target is used to record the impact of stones projected from the protected zone of the machine.
An impact is a hole in the target material.
A.3.2 Target construction
A.3.2.1 Target material
The panels shall be constructed of a rigid frame. The dimensions of panels 1 to 4 are shown in Figure A.2, the
dimensions of panels 5 and 7 are shown in Figure A.4, and the dimensions of panel 6 are shown in Figure A.3.
2 2
The Kraft paper shall be of 120 g/m ± 10 g/m construction determined by using ISO 536:2019. The bursting
strength shall be 500 kPa minimum determined by using the method specified in ISO 2758:2014. The tearing
resistance shall be 1 200 mN minimum, in the machine direction, determined in accordance with the test method
specified in ISO 1974:2012.
For testing the brush-cutting mode, the target material is a double wall cardboard.
NOTE The target material for brush-cutting mode is replaced by a strongest target material in order to compensate the
lowest kinetic energy of pieces of crushed bushes compared to stones.
A.3.2.2 Target material attachment
There shall be no reinforcing slat within 20 mm from the Kraft paper. In order to avoid any overlapping, the Kraft
paper shall be stretched from the roll in the horizontal direction on the frames.
A.3.2.3 Target panels frame
The panels 1 to 4 shall be made a rigid frame 2 000 mm high plus the thickness of the top supporting slat (see
Figure A.2).
A.3.2.4 Panel reference lines
Three horizontal reference lines traced along the target at 200 mm, 600 mm and 2 000 mm from the ground level
shall show three zones called: lower zone (between 0 mm and 200 mm), middle zone (between 200 mm and
600 mm) and upper zone (between 600 mm and 2 000 mm) (see Figure A.2).
If the m
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