EN 13684:2004

SLOVENSKI STANDARD
01-november-2004
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Garden equipment - Pedestrian controlled lawn aerators and scarifiers - Safety
Gartengeräte - Handgeführte Rasen-Bodenbelüfter und Vertikutierer - Sicherheit
Matériel de jardinage - Aérateurs et scarificateurs a conducteur a pied - Sécurité
Ta slovenski standard je istoveten z: EN 13684:2004
ICS:
65.060.70 Vrtnarska oprema Horticultural equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 13684
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2004
ICS 65.060.70
English version
Garden equipment - Pedestrian controlled lawn aerators and
scarifiers - Safety
Matériel de jardinage - Aérateurs et scarificateurs - Sécurité Gartengeräte - Vertikutierer und Bodenbelüfter - Sicherheit
This European Standard was approved by CEN on 1 April 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13684:2004: E
worldwide for CEN national Members.

Contents page
Foreword. 4
0 Introduction . 5
1 Scope. 6
2 Normative references . 6
3 Terms and definitions. 7
4 List of significant hazards. 9
5 Safety requirements and/or protective measures . 12
5.1 General. 12
5.2 Power driven components (other than the cutting means). 12
5.3 Guard attachment . 12
5.4 Hot exhaust surfaces. 13
5.4.1 General. 13
5.4.2 Test equipment and method of test . 13
5.4.3 Test acceptance . 13
5.5 Protection from exhaust fumes . 13
5.6 Pressurised components . 13
5.7 Liquid spillage . 14
5.8 Controls . 14
5.8.1 General. 14
5.8.2 Identification of controls . 14
5.8.3 Operator presence control. 14
5.8.4 Traction drive . 15
5.9 Electrical requirements . 15
5.9.1 General. 15
5.9.2 Low voltage battery circuits (not including magneto grounding circuits) . 15
5.9.3 Terminals and uninsulated electrical parts.16
5.10 Stopping and starting. 16
5.10.1 Engine . 16
5.10.2 Tines. 16
5.11 Braking requirements. 16
5.11.1 General. 16
5.11.2 Service brake. 17
5.11.3 Parking brake . 17
5.12 Handles . 17
5.12.1 Construction. 17
5.12.2 Foot probe test . 18
5.13 Thrown object hazard. 18
5.13.1 General. 18
5.13.2 Thrown object test . 18
5.13.3 Test results . 19
5.13.4 Test acceptance (pass/fail criteria) . 19
5.13.5 Additional testing. 19
5.14 Strength of tines and tine mountings . 19
5.15 General construction — Guarding and shielding. 20
5.16 Noise. 21
5.16.1 Noise reduction as a safety requirement. 21
5.16.2 Verification of requirements on noise — Noise measurement . 21
5.17 Vibration. 21
5.17.1 Reduction by design and protective measures . 21
5.17.2 Reduction by information. 22
5.17.3 Vibration measurement . 22
6 Information for use . 22
6.1 Instruction for use. 22
6.2 Marking . 23
6.2.1 Minimum marking . 23
6.2.2 Warnings. 24
6.2.3 Marking durability . 24
6.2.4 Test. 24
Annex A (normative)  Symbols/pictorials. 33
A.1 General. 33
A.2 Pictograms. 33
Annex B (informative)  Safety instructions . 35
B.1 General. 35
B.2 Safe operation practices. . 35
B.2.1 Training . 35
B.2.2 Preparation . 35
B.2.3 Operation . 36
B.2.4 Maintenance and storage. 37
Annex C (normative)  Noise test code — Engineering method (grade 2) . 38
C.1 Scope. 38
C.2 A-weighted sound power level determination . 38
C.3 A-weighted emission sound pressure level measurement . 40
C.4 Requirements for test floor. 40
C.4.1 Artificial surface . 40
C.4.2 Natural grass . 41
C.5 Installation, mounting and operating conditions . 41
C.6 Measurement uncertainties and declaration of noise emission values. 42
C.7 Information to be recorded and reported .42
Annex D (informative)  Example of a material and construction fulfilling the requirements
for an artificial surface. 43
D.1 Material. 43
D.2 Construction. 43
Annex E (normative)  Vibration . 45
E.1 Quantities to be measured. 45
E.2 Instrumentation . 45
E.2.1 General. 45
E.2.2 Fastening of transducer . 45
E.2.3 Calibration . 45
E.3 Measurement direction and measurement location. 45
E.3.1 Measurement direction. 45
E.3.2 Measurement location . 46
E.4 Determination of working procedure. 46
E.5 Measurement procedure . 46
E.6 Determination of the measurement result. 47
Annex ZA (informative)  Relationship of this document with EC Directives . 48
Bibliography . 49

Foreword
This document (EN 13684:2004) 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 December 2004, and conflicting national standards
shall be withdrawn at the latest by December 2004.
This document has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this
document.
Annexes A, C and E are normative. Annexes B and D are informative.
This document includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia,
Spain, Sweden, Switzerland and United Kingdom.
0 Introduction
This document is a type C standard as stated in EN 1070.
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.
1 Scope
This European Standard specifies safety requirements and their verification for the design and
construction of pedestrian controlled integrally powered lawn aerators and scarifiers which are
designed for re-generating lawns by, for instance, combing out grass, thatch and moss or cutting
vertically into the lawn face using tines which rotate about a horizontal axis. It describes methods of
elimination or reduction of hazards arising from their use. In addition, it specifies the type of
information to be provided by the manufacturer on safe working practices.
Throughout this standard, the term “machine” applies to those machines known as aerators, scarifiers,
corers, lawn rakes or grass rakes.
This standard does not apply to aerators/scarifiers made from a machine falling within the scope of
EN 709:1997 when fitted with an aerating/scarifying implement, non-powered aerators, vertical axis
aerators or those aerators which cut into the soil by means of a reciprocating motion or by water
pressure. The electrical aspects of mains operated machines are covered by EN 60335-1. The safety
aspects of batteries other than batteries for starting the engine and the electrical safety aspects of
battery powered lawn aerators and scarifiers are not covered by this standard.
This standard deals with all significant hazards, hazardous situations and events relevant to scarifiers
and aerators, when they are used as intended and under the conditions foreseen by the manufacturer
(see Clause 4).
Environmental hazards and EMC have not been considered in this standard.
This document is not applicable to aerators/scarifiers which are manufactured before the date of
publication of this document by CEN.
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 (including
amendments).
EN 294:1992, Safety of machinery — Safety distance to prevent danger zones being reached by the
upper limbs.
EN 954-1:1996, Safety of machinery — Safety related parts of control systems — Part 1: General
principles for design.
EN 982:1996, Safety of machinery — Safety requirements for fluid power systems and their
components — Hydraulics.
EN 1033:1995, Hand-arm vibration — Laboratory measurement of vibration at the grip surface of
hand-guided machinery — General.
EN 1070, Safety of machinery — Terminology.
EN 60335-1:2002, Household and similar electrical appliances — Part 1: General requirements
(IEC 60335-1:2001, modified).
EN ISO 354:2003, Acoustics - Measurement of sound absorption in a reverberation room
(ISO 354:2003).
EN ISO 3744:1995, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994).
EN ISO 11201:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of
emission sound pressure levels at a work station and at other specified positions — Engineering
method in an essentially free field over a reflecting plane (ISO 11201:1995).
EN ISO 11688-1:1998, Acoustics — Recommended practice for the design of low-noise machinery
and equipment — Part 1: Planning (ISO/TR 11688-1:1995).
EN ISO 12100-1:2003, Safety of machinery - Basic concepts, general principles for design - Part 1:
Basic terminology, methodology (ISO 12100-1:2003).
EN ISO 12100-2:2003, Safety of machinery - Basic concepts, general principles for design - Part 2:
Technical principles (ISO 12100-2:2003).
ISO 3767-1:1998, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment — Symbols for operator controls and other displays — Part 1: Common symbols.
ISO 3767-3:1995, 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.
ISO 3767-4:1993, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment — Symbols for operator controls and other displays — Part 4: Symbols for forestry
machinery.
ISO 3864-1:2002, Graphical symbols — Safety colours and safety signs — Part 1: Design principles
for safety signs in workplaces and public areas.
ISO 11684:2002, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment — Safety signs and hazard pictorials — General principles.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 1070 and the
following apply.
3.1
braking system
combination of one or more brakes and the related means of operation and control
3.2
catcher
part or combination of parts which provides a means for collecting grass, thatch, moss or other debris
3.3
control
means or device which will control the operation of the machine or any specific operating function
thereof
3.4
working position
any depth setting of the tines designated by the manufacturer
3.5
discharge chute
extension of the tine enclosure from the discharge opening, generally used to control the discharge of
material from the tines
3.6
discharge opening
gap or opening in the tine enclosure through which grass, thatch, moss and other debris may be
discharged
3.7
front discharge
denotes throwing out grass, thatch and moss so that they will be collected in a catcher which is
located in front of the tines
3.8
handle
all parts likely to be hand-held for guiding the machine in normal use
3.9
lawn aerator (also known as corer)
machine which uses the ground to determine the depth of cut, designed for penetrating the lawn
surface
3.10
lawn scarifier (also known as lawn rake)
machine designed to scratch the surface, or earth face thereby also combing the lawn
3.11
maximum operating engine/motor speed
highest engine/motor speed obtainable when adjusted in accordance with the machine manufacturer's
specifications and/or instructions with the tines engaged
3.12
normal operation
any use of the machine which is specified by the manufacturer and which is consistent with such
activities as combing thatch, starting, stopping, fuelling, connecting to (or disconnecting from) a power
source
3.13
normal use
normal operation, plus routine maintenance, servicing, cleaning, transporting, attaching or removing
accessories, and making adjustments as determined by the manufacturer's instructions
3.14
operator control
any control requiring operator actuation to perform specific functions
3.15
operator presence control
control designed so that it will automatically interrupt power to a drive when the operator's actuating
force is removed
3.16
operator zone
zone for persons operating a machine as presented in Figure 1
3.17
parking brake
device incorporated in the machine which, when operated, prevents the machine from moving from a
stationary position and which will remain applied without the operator being present
3.18
power source
engine or motor which provides mechanical energy for movement of the tines and traction drive
3.19
rear discharge
denotes throwing out grass, thatch and moss so that they will be collected in a catcher which is
located behind the tines
3.20
service brake
designated primary means for decelerating and stopping a machine from its ground travel speed
3.21
tine
mechanism used to provide the penetrating or scratching action of a machine
3.22
tine enclosure
part or assembly which provides the protective means around the tines
3.23
tine tip circle
path described by the outermost point of the tine as it rotates about its shaft axis
3.24
traction drive
means (system) used to transmit power from the power source to the ground drive means
3.25
width of cut
total width of scarification/aeration measured across the tines at right angles to the direction of travel
4 List of significant hazards
This Clause contains for defined danger zones all the significant hazards, hazardous situations and
events covered by this standard, identified by risk assessment as significant for this type of machines
and which require specific action by the designer or manufacturer to eliminate or to reduce the risk
(see Table 1).
Its is the responsibility of the manufacturer to check whether or not the safety requirements specified
in this standard apply to each significant hazards presented by its specific machine and to validate
that the risk assessment is complete with particular attention to:
 the intended use of the machine including maintenance, setting and cleaning and its reasonably
foreseeable misuse;
 the identification of all significant hazards associated with the machine.
Table 1 — List of significant hazards associated with scarifiers and aerators
Ref. Hazard Location or event Clause/sub-clause of
a
this standard
No.
Hazards, hazardous situations and hazardous events
1 Mechanical hazards due to:
— machine parts or work pieces, e.g.:
e) inadequacy of mechanical strength; Tine failure/strength 5.14
— accumulation of energy inside the
machinery e.g.:
g) liquids and gases under pressure; Hydraulic fluid leakage/burst 5.6, 6.1
1.2 Shearing hazard Contact with moving parts 5.2, 5.3, 5.10.2, 5.15,
6.1, 6.2 and annex A
1.3 Cutting or severing hazard Contact with moving parts 5.2, 5.3, 5.10.2, 5.15,
6.1, 6.2 and annex A
1.4 Entanglement hazard Contact with moving parts 5.2, 5.3, 5.10.2, 5.15,
6.1, 6.2 and annex A
1.5 Drawing-in or trapping hazard Contact with moving parts 5.2, 5.3, 5.10.2, 5.15,
6.1, 6.2 and annex A
1.6 Impact hazard Hit by thrown objects 5.3, 5.13
1.9 High pressure fluid injection or ejection Penetration by high pressure 5.6, 6.1
hazard fluid
2 Electrical hazards due to:
2.1 Contact of persons with live parts Contact with live parts 5.9.3
(direct contact)
2.3 Approach to live parts under high Contact with HT ignition parts 5.9.3
voltage
2.5 Thermal radiation or other phenomena Protection against circuit 5.9.2.3
such as the projection of molten overload
particles and chemical effects from
short circuits, overloads, etc.
3 Thermal hazards, resulting in:
3.1 Burns, scalds and other injuries by a Contact with hot parts 5.4
possible contact of persons with objects
or materials with an extreme high or low
temperature, by flames or explosions
and also by the radiation of heat
sources
4 Hazards generated by noise, resulting in:
4.1 Hearing loss (deafness), other Hearing damage 5.16, 6.1, 6.2 and
physiological disorders (e.g. loss of annex A, annex C
balance, loss of awareness)
5 Hazards generated by vibration
5.1 Use of hand-held machines resulting in Vibration white finger 5.17, 6.1, annex E
a variety of neurological and vascular
disorders
(continued)
Table 1 — List of significant hazards associated with scarifiers and aerators (continued)
7 Hazards generated by materials and substances (and their constituent elements) processed or
used by the machinery
7.1 Hazards from contact with or inhalation Breathing engine exhaust 5.5, 6.1
of harmful fluids, gases, mists, fumes, fumes
and dusts
Contact with hazardous fluids 5.7, 6.1
7.2 Fire or explosion hazard Abrasion of wire insulation etc 5.9.2.1
8 Hazards generated by neglecting ergonomic principles in machinery design as, e.g. hazards
from:
8.1 Unhealthy postures or excessive effort Position of controls 5.8.1
8.2 Inadequate consideration of hand-arm Position of controls 5.8.1
or foot-leg anatomy
Position of handle 5.12
8.3 Neglected use of personal protection Eye and ear protection 6.1, annex A
equipment
8.7 Inadequate design, location or Position of controls 5.8.1, 5.8.2
identification of manual controls
9 Combination of hazards
10 Unexpected start-up, unexpected over-run/over-speed (or any similar malfunction) from:
10.6 Errors made by the operator (due to Removal of guards before 5.3
mismatch of machinery with human stopping machine

characteristics and abilities, see 8.6)
Over-speed of engine 5.8.1
Leaving unattended machine 5.8.3
running
16 Break-up during operation Broken tines 5.14
17 Falling or ejected objects or fluids Thrown objects 5.3, 5.13

Additional hazards, hazardous situations and hazardous events due to mobility
20 Relating to the travelling function
20.1 Movement when starting the engine Movement of the machine 5.8.1, 5.8.3, 5.8.4
20.2 Movement without a driver at the driving Operator presence control — 5.8.3
position tines
5.8.4
Operator presence control —
traction
20.6 Insufficient ability of machinery to be Stopping from travelling 5.11.1, 5.11.2
slowed down, stopped and immobilised
Keeping stationary 5.11.3
21 Linked to the work position (including driving station) on the machine
21.4 Mechanical hazards at the work
position:
Thrown objects 5.3, 5.13
c) fall of objects, penetration by objects
Feet in contact with tines 5.12
e) contact of persons with machine
parts or tools (pedestrian controlled
machines)
(continued)
Table 1 — List of significant hazards associated with scarifiers and aerators (conclued)
21.8 Noise at the work position Hearing damage 5.16, 6.1, 6.2 and
annex A, annex C
21.9 Vibration at the work position Vibration white finger 5.17, 6.1, annex E
22 Due to the control system
22.1 Inadequate location of manual controls Position of controls 5.8.1
22.2 Inadequate design of manual controls Reverse only with rearward 5.8.4
and their mode of operation movement of control
24 Due to the power source and to the transmission of power
24.1 Hazards from the engine and the Harm from battery vapour 5.9.2.2
batteries
25 From/to third persons
25.1 Unauthorised start-up/use Removable key 5.10.1
25.2 Drift of a part away from its stopping Positive stop control 5.10.1
position
26 Insufficient instructions for the Full instructions 6.1, 6.2 and annex A
driver/operator
a
References are according to EN 1050:1996, annex A
5 Safety requirements and/or protective measures
5.1 General
The machines shall comply with the safety requirements and/or protective measures of this Clause. In
addition, the machine shall be designed according to the principles of EN ISO 12100 for hazards
relevant but not significant, which are not dealt with by this document (e.g. sharp edges on the outside
of the machine).
5.2 Power driven components (other than the cutting means)
All power driven transmission components except the ground-contacting parts of the machine shall be
guarded to prevent contact with these parts during normal operation. For guarding of the tines see
5.15.
Except where otherwise stated in this standard all openings and safety distances shall conform to
4.5.1 and 4.5.3 of EN 294:1992.
Compliance shall be checked by inspection and measurement.
5.3 Guard attachment
Guards allowing access to power driven components, other than the tines, shall be interlocked at
least according to category 1 of EN 954-1, to cause the moving parts to come to rest before access
can be gained. While the power driven component is exposed it shall not be possible for it to be
driven. Other guards shall be fixed guards and shall not be detachable without the use of tools, or the
construction of the machine shall be such that it cannot be used without the guard in its guarding
position. Guarding shall be designed to prevent hazardous thrown objects. This shall be tested
according to 5.13.
5.4 Hot exhaust surfaces
5.4.1 General
Exposed components of the power source exhaust system having a surface temperature greater than
80 °C at (20 ± 3) °C ambient temperature shall be considered hot and shall be guarded so that they
are not accessible to unintentional contact during normal use. These parts, which shall also include
the power source exhaust guard, are considered accessible if the area contactable by the appropriate
test cone (see Figure 2) is larger than 10 cm .
It is not necessary to test the accessibility of hot parts while they are hot. Allow the hot parts to cool
before using the cone(s).
5.4.2 Test equipment and method of test
5.4.2.1 Temperature measuring equipment
The temperature measuring equipment for hot surfaces shall have an accuracy of ± 4 °C.
5.4.2.2 Method of test
The test shall be conducted in the shade. The power source shall be operated at its maximum
operating engine/motor speed until the surface temperatures stabilise. Identify the hot surface area(s)
on the power source exhaust system and guard. Temperatures shall be determined by correcting the
observed temperature by the difference between the specified ambient and test ambient temperature.
When the distance between the identified hot area and the nearest control is > l00 mm, Cone A in
Figure 2 shall be used. For a distance ≤ l00 mm between the identified hot area and the nearest
control, Cone B in Figure 2 shall be used.
For Cone A, with the axis of the cone anywhere between 0° and 180° to the horizontal and with the
nose or point of the cone in a downward to horizontal direction, move the cone towards the hot
surface. Cone A shall not be moved in an upward direction. Cone B shall be moved in any direction.
When moving the cone(s), determine if contact is made with the hot surface area(s) by the cone tip or
conical surface of the cone.
5.4.3 Test acceptance
The tip or conical surface of Cone A or Cone B shall not be able to make contact with a hot surface
area greater than 10 cm .
5.5 Protection from exhaust fumes
Engine exhaust, shall not be directed towards the operator.
Compliance shall be checked by inspection.
5.6 Pressurised components
Hydraulic systems and their components shall comply with the relevant parts of EN 982:1996.
Pressurised hoses, lines and components shall be located or shielded so that in the event of rupture
the fluid cannot be discharged directly on to the operator when in the operating position.
If stored energy devices are used within the machine there shall be a safe means of de-energising
provided together with instructions for its correct use. For hydraulic devices these shall be according
to EN 982:1996.
Compliance shall be checked by inspection.
5.7 Liquid spillage
When filled to the maximum according to the manufacturer's instructions liquid containers, batteries,
fuel systems, oil reservoirs, and coolant systems shall be constructed to prevent spillage for 1 min
whilst the machine is tilted at 20 ° lateral and 30 ° longitudinal. Weeping at vent systems shall not be
considered as spillage.
Compliance shall be checked by inspection.
5.8 Controls
5.8.1 General
Except as indicated in the following list operator controls shall be located within, and have a range of
movement which remains within, the anthropometric dimensions given in Figure 1:
 controls for setting the depth of penetration of the tines;
 catcher discharge arrangements;
 engine starting controls, on condition that starting can only be accomplished with the drive to
the tines disengaged.
The operating range of less frequently used operator controls may be extended by allowing the
operator's trunk, when standing with both feet on the ground, to articulate within the confines of the
operator zone (e.g. lean forward until contacting the handle in any of the operating positions).
It shall not be possible to sustain an engine/motor speed greater than the maximum operating
engine/motor speed by use of any control or by simple adjustments made by using standard tools.
Compliance shall be checked by inspection.
5.8.2 Identification of controls
Controls, whose purpose is not obvious to the user, shall have the function, direction and/or method
of operation clearly identified by a durable label or mark.
Operator control symbols shall comply with ISO 3767-1:1998, and ISO 3767-3:1995, and
ISO 3864:1984 for signs and colours.
Detailed instructions on the operation of all controls shall be provided in an instruction handbook.
Compliance shall be checked by inspection.
5.8.3 Operator presence control
Machines shall be fitted with a device on the control handle which will automatically stop tine rotation
when the operator's hands are removed from the handle. This may be accomplished, for example, by
stopping the drive motor or by an intermediate tine clutch/brake mechanism.
For starting tine rotation the control shall require two separate and dissimilar actions. If these actions
are to be carried out by using the same hand then the actions shall be distinct in order to prevent
accidental "switch on".
Compliance shall be checked by inspection.
5.8.4 Traction drive
The control for traction drive shall automatically stop or disengage the traction drive when the
operator's hands are removed from the handle.
The reverse function of the traction drive control shall require continuous activation in the direction of
travel to drive. It shall not be possible to drive the tines when the traction drive is in reverse.
Compliance shall be checked by inspection.
5.9 Electrical requirements
5.9.1 General
These electrical requirements apply only to battery starter and ignition circuits.
5.9.2 Low voltage battery circuits (not including magneto grounding circuits)
5.9.2.1 Electrical cables
Electrical cables shall be protected if located in potentially abrasive contact with metal surfaces and
shall be resistant to, or protected against, contact with lubricant and fuel.
The wiring assembly shall, where possible, be grouped together, be supported and be located so that
no portion is in contact with the carburettor, metallic fuel lines, the exhaust system, moving parts or
sharp edges. Any edges of metal members likely to be in contact with the cables shall be rounded or
protected to prevent damage to the cables by cutting or abrasion.
Compliance shall be checked by inspection.
5.9.2.2 Battery installation
The compartment for a vented storage battery shall have openings to provide ventilation and drainage.
When the battery is in the operating position, acid shall not leak onto parts that would be critically
affected to the extent that a hazard would be created from corrosion.
Compliance shall be checked by inspection.
5.9.2.3 Overload protection
All circuits, except starter motor and high tension ignition circuits, shall be provided with overload
protection devices in the ungrounded line near the battery terminal. The overload protection may be
located in either wire of a 2 wire system.
Compliance shall be checked by inspection.
5.9.3 Terminals and uninsulated electrical parts
Terminals and uninsulated electrical parts, and two-wire non-grounded systems shall be protected
against short circuiting, for example, by the fuel can or tools, during normal re-fuelling and lubrication
servicing.
All high-voltage parts of the circuit including spark plug terminals shall be electrically protected in such
a manner that the operator cannot make accidental contact with them.
Ignition interruption or short-circuiting shall be provided and shall be fitted on the low-voltage side.
Compliance shall be checked by inspection.
5.10 Stopping and starting
5.10.1 Engine
A stopping device shall be provided. The device shall not depend on sustained manual pressure for
its continued operation. An emergency stop device is not required.
A switch operated by a removable key, or a similar device shall be provided unless a manual starter is
the only means of engine starting. Machines shall not be equipped with a starter operated by means
of a loose rope.
Compliance shall be checked by inspection.
5.10.2 Tines
Aerators that have a designated position that raises the tines such that they are not in contact with the
ground shall be provided with a means to prevent unintentional contact with the rotating tines. This
shall be achieved by one of the following three options:
a) it shall not be possible to raise the tines unless the tines are stopped, and it shall not be possible
to engage the drive to the tines when the machine is in the designated raised position (i.e. the
tines are not in contact with the ground); or
b) the tines shall stop within 3 s of the operator presence control being released; or
c) the tine enclosure shall prevent inadvertent foot contact by the operator.
Compliance shall be checke
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