EN 709:1997
(Main)Agricultural and forestry machinery - Pedestrian controlled tractors with mounted rotary cultivators, motor hoes, motor hoes with drive wheel(s) - Safety
Agricultural and forestry machinery - Pedestrian controlled tractors with mounted rotary cultivators, motor hoes, motor hoes with drive wheel(s) - Safety
This European Standard specifies safety requirements and testing for design and construction of, pedestrian controlled tractors with mounted rotary cultivators with the cultivator rotating axis horizontal and perpendicular to the direction of motion of the machine, motor hoes and motor hoes with drive wheel(s), all as used in agriculture, forestry, landscaping and gardening (including amenity use). It describes methods for the elimination or reduction of risks arising from their use. In addition, it specifies the type of information to be provided by the manufacturer on safe working practices. This European Standard does not cover the requirements to fulfill national road traffic regulations such as lights, steering and braking. Environmental aspects have not been considered in this standard. This European Standard applies primarily to machines which are manufactured after the date of issue of the standard.
Maschinen für die Land- und Forstwirtschaft - Einachstraktoren mit angebauter Fräse, Motorhacken, Triebhacken - Sicherheit
Diese Europäische Norm enthält sicherheitstechnische Anforderungen und deren Prüfung für Gestaltung und Konstruktion von Einachstraktoren mit angebauter Fräse mit waagerecht drehender und senkrecht zur Fahrtrichtung der Maschine angeordneter Welle sowie für Motorhacken und Triebradhacken.
Matériel agricole et forestier - Motoculteurs avec fraises portées, motobineuses et fraises à roue(s) motrice(s) - Sécurité
La présente norme européenne détermine les prescriptions de sécurité et les vérifications pour la conception et la construction des motoculteurs avec fraises portées, avec axe de rotation horizontal et perpendiculaire au sens d'avancement de la machine, des motobineuses et des fraises à roue(s) motrice(s), utilisés en agriculture, en foresterie, pour l'entretien des espaces verts et pour le jardinage (y compris à usage de loisir).
Kmetijski in gozdarski stroji - Enoosni traktorji s priključenim prekopalnikom, motorni prekopalniki in motorni prekopalniki s pogonskim(a) kolesom(a) - Varnost
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 709:1998+A2:2009
01-julij-2009
.PHWLMVNLLQJR]GDUVNLVWURML(QRRVQLWUDNWRUMLVSULNOMXþHQLPSUHNRSDOQLNRP
PRWRUQLSUHNRSDOQLNLLQPRWRUQLSUHNRSDOQLNLVSRJRQVNLP D NROHVRP D 9DUQRVW
Agricultural and forestry machinery - Pedestrian controlled tractors with mounted rotary
cultivators, motor hoes, motor hoes with drive wheel(s) - Safety
Maschinen für die Land- und Forstwirtschaft - Einachstraktoren mit angebauter Fräse,
Motorhacken, Triebhacken - Sicherheit
Matériel agricole et forestier - Motoculteurs avec fraises portées, motobineuses et fraises
à roue(s) motrice(s) - Sécurité
Ta slovenski standard je istoveten z: EN 709:1997+A2:2009
ICS:
65.060.10 Kmetijski traktorji in prikolice Agricultural tractors and
trailed vehicles
65.060.20 Oprema za obdelovanje tal Soil-working equipment
SIST EN 709:1998+A2:2009 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 709:1998+A2:2009
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SIST EN 709:1998+A2:2009
EUROPEAN STANDARD
EN 709:1997+A2
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2009
ICS 65.060.10; 65.060.20 Supersedes EN 709:1997
English Version
Agricultural and forestry machinery - Pedestrian controlled
tractors with mounted rotary cultivators, motor hoes, motor hoes
with drive wheel(s) - Safety
Matériel agricole et forestier - Motoculteurs avec fraises Maschinen für die Land- und Forstwirtschaft -
portées, motobineuses et fraises à roue(s) motrice(s) - Einachstraktoren mit angebauter Fräse, Motorhacken,
Sécurité Triebhacken - Sicherheit
This European Standard was approved by CEN on 4 March 1997 and includes Amendment 1 approved by CEN on 1 July 1999 and
Amendment 2 approved by CEN on 29 December 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 709:1997+A3:2009: E
worldwide for CEN national Members.
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SIST EN 709:1998+A2:2009
EN 709:1997+A2:2009 (E)
Contents Page
Foreword .4
Introduction .5
1 Scope .5
2 Normative references .5
3 Definitions .6
4 List of hazards .6
5 Safety requirements and/or measures .7
5.1 General .7
5.2 Starting device .7
5.3 Manual controls .8
5.4 Identification of controls .9
5.5 Controls of the movement of the machine and of the tool . 10
5.6 Reverse gear . 10
5.7 Guards for moving parts . 10
5.7.1 General . 10
5.7.2 Soil working tool . 10
5.8 Handlebars . 14
5.8.1 General . 14
5.8.2 Motor hoes . 14
5.9 Exhaust system. 15
5.9.1 Protection against exhaust gas . 15
5.9.2 Protection against hot surfaces . 16
5.10 Steering mechanisms . 17
5.10.1 General . 17
5.10.2 Measurement of the steering force . 17
5.11 Brakes . 18
5.12 Electrical installation . 18
5.13 Noise . 19
5.13.1 General . 19
5.13.2 Operating conditions . 19
5.14 Vibration . 19
5.14.1 !!Reduction by design and protective measures . 19
!!
5.14.2 Reduction by information . 19
5.14.3 Vibration measurement"". 20
""
6 Information for use . 20
6.1 Instruction handbook . 20
6.2 Marking . 22
Annex A (normative) List of hazards . 24
Annex B (informative) Examples of machines . 30
Annex C (normative) !!Measurement of vibration at the handlebars"" . 32
!! ""
C.1 General . 32
C.2 Quantities to be measured . 32
C.3 Instrumentation . 32
C.3.1 General . 32
C.4 Fastening of the transducer . 32
C.5 Calibration . 33
C.6 Measurement location and direction . 33
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C.7 Pre - test . 33
C.8 Test conditions . 33
C.8.1 Machine set-up . 33
C.8.2 Operating conditions . 33
C.8.3 Operator. 34
C.9 Measurement procedure . 34
C.10 Test report . 34
Annex ZA (informative) ##Relationship between this European Standard and the Essential
##
Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC$$$$ . 37
Annex ZB (informative) ####Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC$$$$ . 38
Bibliography . 39
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EN 709:1997+A2:2009 (E)
Foreword
This document (EN 709:1997+A2:2009) 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 2009, and conflicting national standards shall be
withdrawn at the latest by December 2009.
This document includes Amendment 1, approved by CEN on 1999-07-01 and Amendment 2, approved by
CEN on 2008-12-29.
This document supersedes EN 709:1997.
The start and finish of text introduced or altered by amendment is indicated in the text by tags
!" and # $.
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
#For relationship with EU directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document.$
The Annex A is normative and contains the "List of hazards".
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and United Kingdom.
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Introduction
The extent to which hazards are covered is indicated in the scope of this standard.
In addition, machines shall comply – as appropriate – with EN 292 for hazards which are not dealt with and
especially with Annex A of EN 292-2:1991/A1:1995 when EN 292 does not give precise requirements.
1 Scope
This European Standard specifies safety requirements and testing for design and construction of, pedestrian
controlled tractors with mounted rotary cultivators with the cultivator rotating axis horizontal and perpendicular
to the direction of motion of the machine, motor hoes and motor hoes with drive wheel(s), all as used in
agriculture, forestry, landscaping and gardening (including amenity use).
It describes methods for the elimination or reduction of risks arising from their use. In addition, it specifies the
type of information to be provided by the manufacturer on safe working practices.
This European Standard does not cover the requirements to fulfil national road traffic regulations such as
lights, steering and braking.
Environmental aspects have not been considered in this standard.
This European Standard applies primarily to machines which are manufactured after the date of issue of the
standard.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references, the
latest edition of the publication referred to applies.
EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic
terminology, methodology.
EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical
principles and specifications.
EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts, general principles for design - Part 2:
Technical principles and specifications.
EN 294:1992, Safety of machinery - Safety distances to prevent danger zones being reached by the upper
limbs.
EN 563:1994, Safety of machinery – Temperatures of touchable surfaces – Ergonomics data to establish
temperature limit value for hot surfaces.
EN 1033:1995, Hand-arm vibration – Laboratory measurement of vibration at the grip surface of hand-guided
machinery – General.
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prEN 1553:1996, Agricultural, forestry, landscaping and garden machinery – Common requirements – Safety.
!CR 1030-1:1995, Hand-arm vibration – Guidelines for vibration hazards reduction – Part 1: Engineering
methods by design of machinery
ISO 5805:1981, Mechanical vibration and shock affecting man - Vocabulary"
EN ISO 3767-1:1995, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment –
Symbols for operator controls and other displays – Part 1: Common symbols.
EN ISO 3767-3:1996, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment –
Symbols for operator controls and other displays – Part 3: Symbols for powered lawn and garden equipment.
3 Definitions
For the purposes of this standard, the definitions given in EN 292-1:1991 apply together with the following:
3.1
pedestrian controlled tractor
agricultural self-propelled machine designed to be pedestrian controlled, capable of driving and/or pulling
different working tools (see Figure B.1)
3.2
tool
working element which can be adapted to a pedestrian controlled tractor
3.3
mounted rotary cultivator
tool used for working the soil composed of a group of rotating elements which can be adapted to a pedestrian
controlled tractor.
3.4
motor hoe
agricultural self-propelled machine designed to be pedestrian controlled with or without support wheel(s), in
such a way that its working elements act as hoeing tools to ensure propulsion (see figure B.2)
3.5
motor hoe with drive wheel(s)
agricultural self-propelled machine designed to be pedestrian controlled and propelled by one or various
wheels directly actuated from the engine and equipped with hoeing tools (see figure B.3).
3.6
handlebar
device equipped with grips enabling the machine to be manually controlled.
4 List of hazards
The list of significant hazards dealt with in this standard is given in Annex A.
Annex A also indicates the hazards which have not been dealt with.
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5 Safety requirements and/or measures
5.1 General
Unless otherwise specified in this standard, the machine shall comply with the requirements of tables 1, 3, 4
and 6 of EN 294:1992.
The requirements of prEN 1553 apply where relevant.
5.2 Starting device
In addition to the hold-to-run controls (see 5.5) the machines shall be equipped with a device which prevents
the engine starting if the start-up can induce rotation of the wheels or movement of the tool.
The type of device which can be considered as fulfilling this requirement is one which, for example, by a
mechanical linkage only allows the engine to start when the gear lever is in neutral and the tool is declutched.
Such a device is not necessary if, when starting the machine according to the instructions, the operator is not
required to be in the danger zone. The danger zone is taken as the longitudinal band defined by the width of
the machine and tool extending both forward and rearwards from it. If the machine is not provided with reverse
gear, the danger zone to the rear of the machine is limited to a distance of 550 mm as measured from the rear
extremity of the protective devices for moving parts (see figure 1).
In the case of a machine provided with reverse gear, the danger zone to the rear includes the whole
longitudinal zone limited by the working width of the equipment.
Should the operator have to lean on the machine to start the engine, the appropriate place shall be indicated
or an identified support provided with a corresponding indication.
With the exception of hand cranks (see ISO/DIS 11102-1 and ISO/DIS 11102-2), starting devices shall be
integral with the machine (e.g. recoil pull start). Loose belts, cables, etc. are not accepted.
If starting is achieved by means of a hand crank, it shall be equipped with a device that disconnects the hand
crank immediately when the engine starts and prevents its connection when the engine is running or kick-back
during starting.
Dimensions in millimetres
Figure 1 — Limits of the danger zone when operating the starting device for machines with no reverse
gear
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5.3 Manual controls
The height of the handlebar grips in relation to the ground shall be adjustable.
The following manually operated controls shall be within the "hand reach zone" from the normal operator
working position:
clutch;
brakes;
gearbox (within the selected range);
reversing device;
steering system;
engine working speed;
hold-to-run control (see 5.5);
tool clutch lever;
stop control.
The "hand reach zone" (see figure 2) is defined as the truncated hemispherical volume of radius R = 800 mm
with its centre at the midpoint (point B in figure 2) of a line joining the handlebar grip ends when the grips are
set to a height of 800 mm above the ground, or set to the next available lowest height setting where this is not
available, with its flat face on the vertical plane tangential to the handlebar grip ends and facing rearwards,
and truncated below by a plane parallel to the ground positioned 450 mm above the ground.
The engine stopping device shall not depend on sustained manual pressure for its operation.
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Dimensions in millimetres
Figure 2 — "Hand reach zone" volume
5.4 Identification of controls
The controls used for driving the working tool and for locking the differential in their different positions shall be
marked.
The gear positions (including the neutral position) shall be durably and clearly marked and located within the
field of vision of the operator.
Detailed instructions on the operation of all controls shall be provided in the instruction handbook.
Symbols in accordance with EN ISO 3767-1:1995 and EN ISO 3767-3:1996 shall be used as appropriate.
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5.5 Controls of the movement of the machine and of the tool
All movements of the machine and of the working tool shall be stopped when the hold-to-run control(s) is (are)
released.
The hold-to-run control(s) shall not extend beyond the end of the handlebar grips.
The movement of the machine or of the tools shall not start unless the operator is able to grip both the
control(s) and the handlebar grip.
5.6 Reverse gear
In all machines with reverse gear, it shall not be possible to go directly from forward to reverse motion. This
requirement is fulfilled, for example, by providing a neutral position.
In the case of pedestrian controlled tractors and motor hoes with drive wheel, it shall not be possible to
operate the working tool and the reverse gear simultaneously (e.g. by having a mechanical interlock on the
reverse gear).
For motor hoes without drive wheel, the maximum design reverse speed at rated engine speed shall not
exceed 1 m/s.
5.7 Guards for moving parts
5.7.1 General
5.7.1.1 Moving transmission parts which generate hazards shall be protected by means of fixed guards.
5.7.1.2 If, according to the instruction handbook, frequent access is foreseen e.g. for adjustment or
maintenance, guards shall be used which remain attached to the machine (e.g. by means of hinges), and
which can only be opened by using a tool and which automatically lock without the use of a tool.
5.7.1.3 If this type of guard is not used, movable guards as specified in 4.2.2.3 of EN 292-2:1991 shall be
provided, which:
Cause the dangerous movement to stop before reaching the danger zone; or
Do not open until the dangerous movement ceases.
5.7.2 Soil working tool
The operator driving the machine shall be protected by the design of the machine from unintentional contact
with the soil working tool.
The protective device shall be designed with a minimum thickness of 2 mm of steel or equivalent material, and
fulfil the requirements in 5.7.2.1 and 5.7.2.2.
NOTE Subsequent revision of this standard will provide adequate test methods.
5.7.2.1 Pedestrian controlled tractors and motor hoes with drive wheel
The tools shall have a full cover from over the full working width with no openings. The cover shall extend
forward by an angle of at least 60° to the vertical pane which cuts through the rotating axis of the working tool
(see figure 3).
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The upper covering shall also extend rearwards and downwards (depending on the length of the handlebars)
so that the minimum values indicated in table 1 for m and n are reached (see figure 3). Hinged covering is
allowed providing that it always remains in contact with the soil without any external action during work.
Table 1 — Clearance from the handlebar grips to the working tool and minimum dimensions of the
guard devices (figure 3)
Dimensions in millimetres
l m n Position of point D
l ≥ 700 150 20 3 (G)
600 ≤ l < 700 180 1/3 r 2
1)
500 ≤ l < 600 230 2/3 r 1
1)
Applicable only to machines having an engine power up to 4 kW or to machines having a mass less than
120 kg
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Dimensions in millimetres
Where:
A is the intersection of the ground line with the vertical from the centre of the wheel;
B is the point on the line AC located at 1/3 r from C;
C is the axis of rotation of the working tool;
D is the rear end of the working tool's protective device;
E is the intersection of the extension of the straight line FB with a line parallel to and 20 mm below the line AC;
F is the intersection between the protective device and the line passing through B at an angle of 60° from the
vertical passing through C;
G is the point on the straight line through E parallel to AC located 150 mm from the periphery of the working
tool from the point H;
H is the rearmost point at which the extension of line AC intersects the periphery of the working tool;
h is the height of the end of the handlebar grips above the ground equal to 800 mm or the nearest available
height setting;
l is the distance, parallel to the ground, between the rearmost periphery of the working tool and the vertical
plane projected downwards from the ends of the handlebar grips when h = 800 mm or at the nearest available
height setting;
m is the distance parallel to AC, between the rear end of guard D and the tangent to the periphery of the
working tool at point H;
n is the distance to D from and perpendicular to the line AC;
r is the maximum turning radius of the working tool.
Figure 3 — Clearance between the ends of the handlebar grips and the working tool and protection of
the working tool
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The minimum clearance distance, measured horizontally, between the periphery of the working tool on the
operator's side and the rear end of the handlebar grips, in the position shown in figure 3, shall correspond to
the values indicated in table 1.
The side elements of the covering shall coincide, as a minimum, with the area FBEG and correspond to the
measurements indicated in figure 3 and table 1. They can be extended to the working tool.
5.7.2.2 Motor hoes
The rotating parts of the working tool shall be protected by a fixed, solid protective device covering them
rearward to an angle of, at least, 60° to the vertical (see figure 4).
The minimum dimensions of the protective guard shall be as given in table 2.
Table 2 — Minimum dimensions of the guard
Dimensions in millimetres
Width of the tool Minimum length of the protective device
≤ 600 Width of the tool
> 600 600
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Dimensions in millimetres
Figure 4 — Guarding of the rotating parts of the working tool
The distance measured parallel to the ground between the rearmost periphery of the working tool and the
vertical plane projected downwards from the ends of the handlebar grips shall be a minimum of 900 mm.
This requirement shall be met with the handlebars in the position as shown in figure 4.
5.8 Handlebars
5.8.1 General
The handlebars shall be rigid relative to one another, and shall be capable of withstanding, without
deformation, a force of 500 N applied downward to them when in the position shown in figure 2.
5.8.2 Motor hoes
Lateral adjustment of the handlebars shall be limited to a maximum of 35° either side of the central axis of the
handlebars. The angle shall be measured at the intersection between the central axis of the handlebars and
the longitudinal axis of the working tools (see figure 5).
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