Safety of household and similar appliances - Part 2-77: Particular requirements for pedestrian-controlled walk-behind electrically powered lawn mowers

Deals with the safety of pedestrian controlled mains-operated electrical cylinder or rotary lawnmowers designed primarily for use around the home or for similar purposes, their rated voltage being not more than 250 V single phase. It does not apply to lawn trimmers, lawn edge trimmers, lawn edgers, flail mowers, sickle-bar mowers, or agricultural mowers.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-77: Besondere Anforderungen für handgeführte elektrisch betriebene Rasenmäher

Appareils électrodomestiques et analogues - Sécurité - Partie 2-77: Règles particulières pour les tondeuses à gazon fonctionnant sur le réseau et à conducteur à pied

Traite de la sécurité des tondeuses à gazon, à lampes hélicoïdales ou à axe vertical électriques, fonctionnant sur le réseau et à conducteur à pied, spécialement conçues pour une utilisation autour de la maison ou pour des usages analogues, dont la tension assignée n'est pas supérieure à 250 V monophasé. Ne s'applique pas aux coupe-gazons, aux coupe-bordures de gazon, aux coupe-bordures, aux tondeuses à fléaux, aux tondeuses à barre de coupe ou aux tondeuses agricoles.

Varnost gospodinjskih in podobnih električnih aparatov - 2-77. del: Posebne zahteve za ročno vodene električne vrtne kosilnice (IEC 60335-2-77:2002, spremenjen)

Ta klavzula 1. dela je nadomeščena. Ta evropski standard določa varnostne zahteve in njihove potrditve za načrtovanje in gradnjo ročno vodenih električnih vrtnih kosilnic. Ta standard velja skupaj z EN 60335-1. Ta evropski standard ne velja za – obrezovalnike trave, obrezovalnike tratnih robov, izdelovalce tratnih robov, gonilnike mlatilcev, rezalnike grmičev, avtomatske (robotske) vrtne kosilnice, kosilce s srpom na drogu, poljedelske kosilce – rotacijske kosilce, za katere je sredstvo rezanja splošna osrednja rotacijska enota, na kateri so nameščeni ali en ali več nekovinskih vlaken ali en ali več nekovinskih rezalnih elementov, nameščenih na os. Ti rezalni elementi se zanašajo na centrifugalno silo, da dosežejo rezanje, s kinetično energijo enega rezalnega elementa, ki ne presega 10 J, - baterijsko gnane vrtne kosilnice z ocenjeno napetostjo baterije, večjo kot 42 V enosmernega toka. Zahteve za baterijske polnilce, vključno z vgrajenimi v stroj, so naslovljene z EN 60335-2-29. Ta evropski standard ne velja za vrtne kosilnice, proizvedene, preden je CENELEC objavil datum tega dokumenta.

General Information

Status
Published
Publication Date
23-Sep-2010
Current Stage
6060 - Document made available
Completion Date
24-Sep-2010

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VSUHPHQMHQSicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-77: Besondere Anforderungen für handgeführte elektrisch betriebene Rasenmäher (IEC 60335-2-77:2002, modifiziert)Appareils électrodomestiques et analogues - Sécurité - Partie 2-77: Règles particulières pour les tondeuses à gazon fonctionnant sur le réseau et à conducteur à pied (CEI 60335-2-77:2002, modifiée)Safety of household and similar appliances - Part 2-77: Particular requirements for pedestrian-controlled walk-behind electrically powered lawn mowers (IEC 60335-2-77:2002, modified)65.060.70Vrtnarska opremaHorticultural equipmentICS:Ta slovenski standard je istoveten z:EN 60335-2-77:2010SIST EN 60335-2-77:2010en01-december-2010SIST EN 60335-2-77:2010SLOVENSKI

STANDARDSIST EN 60335-2-77:2006SIST EN 50338:20061DGRPHãþD
SIST EN 60335-2-77:2010
EUROPEAN STANDARD EN 60335-2-77 NORME EUROPÉENNE
EUROPÄISCHE NORM September 2010

CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -

All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60335-2-77:2010 E
ICS 65.060.70 Supersedes EN 50338:2006, EN 60335-2-77:2006
English version
Safety of household and similar appliances -

Part 2-77: Particular requirements for pedestrian-controlled walk-behind electrically powered lawn mowers (IEC 60335-2-77:2002, modified)

Appareils électrodomestiques
et analogues - Sécurité -
Partie 2-77: Règles particulières pour
les tondeuses à gazon fonctionnant sur
le réseau et à conducteur à pied (CEI 60335-2-77:2002, modifiée)
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke -
Teil 2-77: Besondere Anforderungen
für handgeführte elektrisch betriebene Rasenmäher
(IEC 60335-2-77:2002, modifiziert)

This European Standard was approved by CENELEC on 2010-09-01. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

SIST EN 60335-2-77:2010
EN 60335-2-77:2010 - 2 -

Foreword The text of the International Standard IEC 60335-2-77:2002, prepared by SC 61F, Safety of hand-held motor-operated electric tools, of IEC TC 61, Safety of household and similar electrical appliances, together with the common modifications prepared by the Technical Committee CENELEC TC 61F, Safety of hand-held and transportable motor-operated electric tools, was submitted to the CENELEC formal vote and was approved as EN 60335-2-77 on 2010-09-01. This document supersedes EN 50338:2006 and EN 60335-2-77:2006. The text of EN 60335-2-77:2006 has been revised by CLC/TC 116/WG 5, Garden appliances, to add the mechanical requirements and bring this standard in line with the Machinery Directive 2006/42/EC. Additionally the safety requirements for battery powered lawnmowers have been included to replace EN 50338:2006; therefore the title is renamed.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement

(dop)
2011-09-01

– latest date by which the national standards conflicting with the EN have to be withdrawn

(dow)

2013-09-01 This Part 2-77 is to be used in conjunction with EN 60335-1. This Part 2-77 supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the European Standard: Particular requirements for pedestrian-controlled walk-behind electrically powered lawn mowers. When a particular subclause of Part 1 is not mentioned in this Part 2-77, that subclause applies as far as is reasonable. When this standard states “addition”, “modification” or “replacement”, the relevant text of Part 1 is to be adapted accordingly. This European Standard has been prepared under Mandate M/396 given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EU Directive 2006/42/EC. See Annex ZZ. There are no special national conditions causing a deviation from this European Standard, other than those listed in Annex ZA to EN 60335-1. There are no national deviations from this European Standard, other than those listed in Annex ZB to EN 60335-1. Other harmonised standards referred to in this European Standard are listed in Annex ZC of Part 1 and this Part 2. The annex lists the valid edition of those documents at the time of issue of this EN. All references are however to be understood as references to the latest edition. SIST EN 60335-2-77:2010

- 3 - EN 60335-2-77:2010 The following numbering system is used: – subclauses that are numbered starting from 101 are additional to those in Part 1; – additional annexes are lettered AA, BB, etc.; NOTE In this European Standard the following print types are used:

- requirements proper: in roman type;
- test specifications: in italic type;
- explanatory matter: in smaller roman type. SIST EN 60335-2-77:2010
EN 60335-2-77:2010 - 4 -

Contents Introduction ...............................................................................................................................................71Scope ................................................................................................................................................82Normative references ........................................................................................................................83Definitions ....................................................................................................................................... 104General requirement ...................................................................................................................... 135General conditions for the tests ..................................................................................................... 136Classification .................................................................................................................................. 137Marking and instructions ................................................................................................................ 138Protection against access to live parts ........................................................................................... 169Starting of motor-operated appliances ........................................................................................... 1610Power input and current ................................................................................................................. 1611Heating ........................................................................................................................................... 1712Void ................................................................................................................................................ 1713Leakage current and electric strength at operating temperature ................................................... 1714Transient overvoltages ................................................................................................................... 1715Moisture resistance ........................................................................................................................ 1716Leakage current and electric strength ............................................................................................ 1717Overload protection of transformers and associated circuits ......................................................... 1718Endurance ...................................................................................................................................... 1719Abnormal operation ........................................................................................................................ 1820Stability and mechanical hazards ................................................................................................... 1821Mechanical strength ....................................................................................................................... 3922Construction ................................................................................................................................... 4623Internal wiring ................................................................................................................................. 4824Components ................................................................................................................................... 4825Supply connection and external flexible cords ............................................................................... 4926Terminals for external conductors .................................................................................................. 4927Provision for earthing ..................................................................................................................... 4928Screws and connections ................................................................................................................ 5029Clearances, creepage distances and solid insulation .................................................................... 5030Resistance to heat and fire ............................................................................................................. 5031Resistance to rusting ...................................................................................................................... 5032Radiation, toxicity and similar hazards ........................................................................................... 50SIST EN 60335-2-77:2010

- 5 - EN 60335-2-77:2010 Annexes ................................................................................................................................................ 51Annex B (normative)

Appliances powered by rechargeable batteries ................................................. 51Annex AA (normative)

Safety signs and symbols ................................................................................ 52Annex BB (normative)

Test enclosure target panels – Corrugated fibreboard penetration test (see 20.107.3.3.2) .......................................................................................................................... 55Annex CC (normative)

Target panel elevation areas and suggested data sheet for thrown object test (see 20.107.3.3) ...................................................................................................................... 57Annex DD (normative)

Test enclosure (see 20.107.4.1) ...................................................................... 59Annex EE (informative)

Safety instructions for lawnmowers ................................................................ 63Annex FF (normative)

Vibration ........................................................................................................... 66Annex GG (normative)

Noise test code – Engineering method (grade 2) ........................................... 71Annex HH (informative)

Example of a material and construction fulfilling the requirements for an artificial surface .............................................................................................................................. 77Annex ZZ (informative)

Coverage of Essential Requirements of EC Directives .................................. 79Bibliography ........................................................................................................................................... 80Figures Figure 1 – Operator zone – Pedestrian controlled lawn mower (see 20.103) ....................................... 20Figure 2 – Foot probe test (see 20.101) ................................................................................................ 21Figure 3 – Handle distance (see 20.107.6.1) and rear cutting means enclosure (see 20.107.1.1) ......... 25Figure 4 – Front opening restrictions for single spindle lawnmowers (see 20.107.1.1.2) ..................... 26Figure 5 – Front opening restrictions for multi-spindle lawnmowers (see 20.107.1.1.2) ...................... 26Figure 6 – Construction for front opening (see 20.107.1.1.2) ............................................................... 27Figure 7 – Example of test cycle (see 20.107.2.1) ................................................................................ 29Figure 8 – Thrown object test fixture – General layout (see 20.107.3.3 and 20.107.4.1.3) .................. 31Figure 9 – Single spindle lawnmower – Test enclosure (see 20.107.4) ............................................... 33Figure 10 – Multi-spindle lawnmower – Test enclosure (see 20.107.4) ................................................ 34Figure 11 – Test of cutting cylinder guarding (see 20.108.1.1) ............................................................. 36Figure 12 – Side coverage of

cutting cylinders (see 20.108.1.2) ......................................................... 37Figure 13 – Top coverage of

cutting cylinders (see 20.108.1.3) .......................................................... 37Figure 14 – Rear coverage of cutting cylinders (see 20.108.1.4) ......................................................... 38Figure 15 – Cylinder mower – Throw line (see 20.108.2) ..................................................................... 39Figure 16 – Example of suitable impact test fixture (see 20.101.2.1) ................................................... 41Figure 17 – Structural integrity tests (see 21.101.4.1.1) ....................................................................... 45Figure 18 – Impact test fixture for handle insulation ............................................................................. 47Figure AA.1 – Pictogram illustrating “Read operator’s manual” ............................................................ 52Figure AA.2 – Pictogram illustrating “Keep bystanders away” .............................................................. 52Figure AA.3 – Pictogram illustrating “Beware of sharp blades.

Blades continue to rotate after the motor is switched off – remove plug from mains before maintenance or if cord is damaged.” for mains operated machines ..................................................................................................................... 53Figure AA.4 – Pictogram illustrating “Beware of sharp blades. Blades continue to rotate after the motor is switched off – Remove disabling device before maintenance” for battery operated machines ............................................................................................................................................... 53Figure AA.5 – Pictogram illustrating “Keep supply flexible cord away from cutting means” for mains operated machines ..................................................................................................................... 54SIST EN 60335-2-77:2010

EN 60335-2-77:2010 - 6 -

Figure BB.1 – Test fixture for corrugated fibreboard penetration test ................................................... 56Figure CC.1 – Example of data sheet for thrown object test ................................................................. 58Figure DD.1 – Nail plan of test enclosure base ..................................................................................... 60Figure DD.2 – Object test enclosure – Base detail ............................................................................... 61Figure DD.3 – Test enclosure walls and base....................................................................................... 62Figure FF.1 – Examples of transducer location/orientation (pedestrian controlled machines) ............. 68Figure FF.2 – Examples of transducer location/orientation for hand-arm vibration .............................. 69Figure GG.1 – Microphone positions on the hemisphere (see Table GG.1) ......................................... 72Figure HH.1 – Sketch of the measurement surface covered with an artificial surface (not to scale).... 78Tables Table 1 – Sizing of test fixture air inlet holes ......................................................................................... 43 Table GG.1 – Co-ordinates of microphone positions ............................................................................ 73 Table GG.2 – Absorption coefficients .................................................................................................... 74

SIST EN 60335-2-77:2010

- 7 - EN 60335-2-77:2010 Introduction This document is a C type standard as stated in EN ISO 12100-1. The machinery concerned and the extent to which hazards, hazardous situations and events are covered is as 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 other standards, for machines which have been built and designed to the provisions of this type C standard. SIST EN 60335-2-77:2010

EN 60335-2-77:2010 - 8 -

1 Scope This clause of Part 1 is replaced by the following. This European Standard specifies safety requirements and their verification for the design and construction of pedestrian controlled walk-behind electrically powered lawnmowers. This standard applies in conjunction with EN 60335-1. This European Standard does not apply to − lawn trimmers, lawn edge trimmers, lawn edgers, flail mowers, scrub cutters, automatic (robot) lawn mowers, sickle-bar mowers, agricultural mowers, trailing seat/sulky units, ride-on machines or non-powered lawnmowers − rotary lawnmowers for which the cutting means is a generally circular central drive unit on which is mounted, either one or more non-metallic filaments or one or more non-metallic, pivotally mounted cutting elements. These cutting elements rely on centrifugal force to achieve cutting, with the kinetic energy of a single cutting element not exceeding 10 J, − battery powered lawnmowers with a rated voltage of the battery more than 42 V d.c. Requirements for battery chargers, including those incorporated into the machine are dealt with in EN 60335-2-29. This European Standard is not applicable to lawnmowers, which are manufactured before the date of publication of this document by CENELEC. NOTE Combustion engine driven machines are covered by EN 836. 2 Normative references This clause of Part 1 is applicable except as follows. Addition: EN 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3: Appliance couplers with a degree of protection higher than IPX0 (IEC 60320-2-3) EN 60335-1, Household and similar electrical appliances – Safety – Part 1: General requirements

(IEC 60335-1, mod.) EN 60335-2-29, Household and similar electrical appliances – Safety – Part 2-29: Particular requirements for battery chargers (IEC 60335-2-29) EN ISO 354:1993 1), Acoustics – Measurement of sound absorption in a reverberation room (ISO 354:1985) 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 3767-1:1995 2), Tractors, machinery for agriculture and forestry, powered lawn and garden equipment – Symbols for operator controls and other displays – Part 1: Common symbols (ISO 3767-1:1991)

Superseded by EN ISO 354:2003, Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003). 2)

Superseded by EN ISO 3767-1:2000, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment - Symbols for operator controls and other displays - Part 1: Common symbols (ISO 3767-1:1998), withdrawn. SIST EN 60335-2-77:2010

- 9 - EN 60335-2-77:2010 EN ISO 3767-2:1995 3), Tractors, machinery for agriculture and forestry, powered lawn and garden equipment – Symbols for operator controls and other displays – Part 2: Symbols for agricultural tractors and machinery (ISO 3767-2:1991) EN ISO 3767-3 3), 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 3767-3) 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) EN ISO 13857:2008, Safety of machinery – Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) EN ISO 20643:2005, Mechanical vibration – Hand-held and hand-guided machinery – Principles for evaluation of vibration emission (ISO 20643:2005) ISO 500:1991 4), Agricultural tractors – Rear-mounted power take-off – Types 1, 2 and 3 ISO 2758:1983 5), Paper – Determination of bursting strength ISO 3304:1985, Plain end seamless precision steel tubes – Technical conditions for delivery ISO 3305:1985, Plain end welded precision steel tubes – Technical conditions for delivery ISO 3306:1985, Plain end as-welded and sized precision steel tubes – Technical conditions for delivery ISO 4046:1978 6), Paper, board, pulp and related terms – Vocabulary ISO 4200:1991, Plain end steel tubes, welded and seamless – General tables of dimensions and masses per unit length ISO 11684, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment –Safety signs and hazard pictorials – General principles EN ISO 3767-5, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment - Symbols for operator controls and other displays - Part 5: Symbols for manual portable forestry machinery ISO 3864, Graphical symbols – Safety colours and safety signs ISO 7000, Graphical symbols for use on equipment –Index and synopsis ISO 7010, Graphical symbols – Safety colours and safety signs –Safety signs used in workplaces and public areas

Withdrawn. 4)

Superseded by ISO 500:2004 series, Agricultural tractors – Rear-mounted power take-off types 1, 2 and 3. 5)

Superseded by EN ISO 2758:2003, Paper – Determination of bursting strength (ISO 2758:2001). 6)

Superseded by ISO 4046:2002 series, Paper, board, pulp and related terms – Vocabulary. SIST EN 60335-2-77:2010

EN 60335-2-77:2010 - 10 -

3 Definitions This clause of Part 1 is applicable except as follows. 3.1.9 Replacement: 3.1.9 normal operation operation of the machine under the following conditions: the machine is operated at rated voltage with the load necessary to attain rated power input Addition: 3.101 cutting means tip circle path described by the outermost point of the cutting means cutting edge as it rotates about its shaft axis 3.102 braking distance distance travelled between the point of the first application of the brake control and the point at which the machine comes to rest 3.103 braking system combination of one or more brakes and related means of operation and control 3.104 cutting means; blade mechanism used to provide the cutting action 3.105 cutting means enclosure part or assembly which provides the protective means around the cutting means 3.106 cutting positions any height setting of the cutting means designated by the manufacturer for cutting grass 3.107 cutting width total width of cut measured across the cutting means at right angles to the direction of travel 3.108 cylinder lawnmower powered lawnmower with one or more cutting means rotating about a horizontal axis to provide a shearing action with a fixed cutter bar or cutting means 3.109 discharge chute extension of the cutting means enclosure from the discharge opening, generally used to control the discharge of material from the cutting means 3.110 discharge opening gap or opening in the cutting means enclosure through which grass can be discharged SIST EN 60335-2-77:2010

- 11 - EN 60335-2-77:2010 3.111 flail mower grass-cutting machine with a multiplicity of free-swinging cutting elements that rotate about an axis parallel to the cutting plane and cut by impact 3.112 grass catcher part or combination of parts which provides a means for collecting grass clippings or debris 3.113 hover lawnmower powered lawnmower which uses a cushion of air as its ground support 3.114 lawn edger powered machine suitable for cutting lawn and soil, usually in a vertical plane 3.115 lawn edge trimmer grass trimming machine where the cutting means operates in a plane approximately perpendicular to the ground 3.116 lawn trimmer grass trimming machine where the cutting means operates in a plane approximately parallel to the ground 3.117 maximum operating motor speed highest motor speed obtainable when adjusted in accordance with the machine manufacturer’s specifications and/or instructions with the cutting means engaged 3.118 mowing attachment cutting means designed to be easily detached from the machine, generally to allow the machine to be used for other purposes 3.119 mulching lawnmower rotary lawnmower without discharge openings in the cutting means enclosure 3.120 normal use normal operation, plus routine maintenance, servicing, cleaning, transporting, attaching or removing accessories, and making ordinary adjustments as determined by the manufacturer’s instructions 3.121 open discharge chute discharge chute without a self closing guard or with a self closing guard which does not completely close the chute 3.122 operator control any control requiring operator actuation to perform specific functions SIST EN 60335-2-77:2010

EN 60335-2-77:2010 - 12 -

3.123 operator presence control control designed so that it will automatically interrupt power to a drive when the operator’s actuating force is removed 3.124 pedestrian-controlled powered lawnmower grass-cutting machine, either pushed or self-propelled, normally controlled by the operator walking behind the unit 3.125 powered lawnmower grass-cutting machine or a machine with grass-cutting attachment(s) which uses the ground to determine the height of cut by means of wheels, air cushion or skids, etc., and which utilizes an electric motor for a power source 3.126 ride-on (riding) machine; lawn and garden tractor self-propelled machine on which an operator rides and which is designed primarily for cutting grass and auxiliary garden work NOTE The cutting means can be an integral part of the machine or suspended from or attached to the machine. 3.127 rotary lawnmower powered lawnmower in which one or more cutting means, cutting by impact, rotate about an axis normal to the cutting plane 3.128 service brake system designated primary means for decelerating and stopping a machine from its ground travel speed 3.129 sickle bar mower mower which uses an electric power source to reciprocate a knife or knives to provide a shearing action with a stationary cutter bar or movable knife 3.130 trailing seat/sulky unit removable, trailing device designed to carry a standing or seated operator to ride behind while controlling a self-propelled, pedestrian-controlled lawnmower or tractor NOTE Also known as a “sulky”. 3.131 automatic (robot) mower automatic lawnmower that operates without human control. It operates only within a delimited perimeter or within a pre-programmed area 3.132 cutter unit combination of cutting means and cutting means enclosure 3.133 disabling device part which is removable from the lawnmower, such as for example a key, which prevents operation of the lawnmower when it is removed SIST EN 60335-2-77:2010

- 13 - EN 60335-2-77:2010 3.134 removable battery battery that is removable without tools 4 General requirement This clause of Part 1 is applicable. 5 General conditions for the tests This clause of Part 1 is applicable except as follows: 5.2Addition: A new machine shall be used for each of the tests of Clause 21. 5.5Addition: During the tests the cutting means are adjusted and lubricated in accordance with the manufacturer’s instructions specific to the test. NOTE For example, cylinder mower cutting means may not be able to run for extended periods at normal adjustment

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