EN 60335-2-77:2010

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

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.
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

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

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
- 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

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)
1)
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
3)
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

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

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 because of lack of lubrication etc. normally provided by the grass. 5.6Addition: Electronic speed control devices are set for the highest speed. 5.8.1Replacement: Unless otherwise specified, a fully charged battery shall be used for each test. Where for consecutive tests the same battery is specified there shall be a minimum of 1 min rest time between tests. 6 Classification This clause of Part 1 is applicable except as follows. 6.1Replacement: Mains operated machines shall be of one of the following classes with respect to protection against electric shock:
− class II or class III. Battery powered machines incorporating battery chargers shall be class II. Other battery-powered machines shall be class III. Compliance is checked by inspection and by the relevant tests. 6.2Addition: Class II machines shall be at least IPX4. Class III machines shall be at least IPX1. 7 Marking and instructions This clause of Part 1 is applicable except as follows. SIST EN 60335-2-77:2010

7.1Replacement: The machines shall be marked with the following minimum information: − rated voltage or rated voltage range in volts; − symbol for nature of supply, unless the rated frequency is marked; − symbol 5172 of IEC 60417, for class II machines only; − IP number according to degree of protection against ingress of water, other than IPX0 − name and address of the manufacturer, and, where applicable, his authorized representative − year of construction; − designation of machinery. This may be achieved by a combination of letters and/or number; − designation of series or type, allowing the technical identification of the product. This may be achieved by a combination of letters and/or numbers and may be combined with the designation of machinery; − rated power input in Watts or rated current in Amperes for mains operated machines; − rated power input in Watts or rated current in Amperes of the charger for battery operated machines with integrated chargers NOTE 1 The first numeral of the IP number need not to be marked on the machine. NOTE 2 Additional markings are allowed provided they do not give rise to misunderstanding. NOTE 3 If components are marked separately, the marking of the machine and that of the components is to be such that there can be no doubt with regard to the marking of the machine itself.
Controls which may give rise to a hazard when operated shall be marked or so placed as to indicate clearly which part of the machine they control. Where replaceable during normal use, the cutting means shall be marked to identify the part number(s) and the manufacturer, importer or supplier. The substance of the following warning shall be placed in a prominent position on the machine. If a pictogram is used it shall be that shown in Annex AA. It shall be in contrasting colours to the base material. If it is embossed, stamped or cast colours are not required. Markings or symbols giving cautionary information shall be located close to the hazard. SIST EN 60335-2-77:2010

- 15 - EN 60335-2-77:2010 For mains operated machines: WARNING: Read the instruction sheet Keep bystanders away 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. Keep the supply flexible cord away from the cutting blades. For battery operated machines: For machines with integrated chargers: The rated power input of the charger WARNING: Read the instruction sheet Keep bystanders away Beware of sharp blades. Blades continue to rotate after the motor is switched off – Remove disabling device before maintenance For all machines: A warning where guards, except hinged, automatically closing guards for grass discharge chutes, are designed to be opened or removed of the relevant hazard visible on the machine both when the guard is closed and when it is opened or removed. 7.12Replacement
An instruction manual shall be supplied with the machine, giving operating, servicing, maintenance and safety instructions that comply as appropriate with clause 6 of EN ISO 12100-2: 2003.
The words ‘Original instructions’ shall appear on the language version(s) verified by the manufacturer or his authorised representative. Where no ‘Original instructions’ exist in the official language(s) of the country where the tool is to be used, a translation into that/those language(s) shall be provided by the manufacturer or his authorised representative or by the person bringing the tool into the language area in question. The translations shall bear the words ‘Translation of the original instructions’, and they shall be accompanied by a copy of the ‘Original instructions’.
The instructions shall include those operations that are meant to be performed by the user. The instructions shall be simple and clear such that they are suitable for unskilled users.
a) repeat of those warnings required to be marked on the appliance together with further explanation, where appropriate. Where safety signs are used in the marking on the appliance, their function shall be explained, b) instructions for the proper assembly of the appliance for use, if the appliance is not supplied in a completely assembled form. c) instructions for proper adjustment and maintenance of the appliance, d) where parts are consumable, the part number of the replacement shall be specified, e) instructions, clearly indentifying function and direction for the operation of all controls,
f) advice on the use and type of extension cords to be used (not lighter than required by 25.7), g) instructions for when and how to attach and detach a collection device from the machine, h) instructions for the safe operation, preparation, maintenance and storage of the appliance,
i) instructions and, where appropriate, drawings for the recommended replacement or repair of, or service and the specifications of the spare parts to be used, when these affect the health and safety of operators, j) instructions and, where appropriate, drawings for the designated operating position and the correct and safe operation of the lawnmower in operations such as moving, safe positioning, handling and clearing blockages, k) the operating method to be followed in the event of breakdown, NOTE Examples of warning are given Annex EE. l) designation of the machinery and series or type as required by 7.1, including description of the lawnmower. m) mass in kilograms n) Declaration of the noise and vibration values including the uncertainties of measurement.
8Protection against access to live parts 8.2Addition: For class II rotary mowers access to the surface of basic insulation or metal parts separated from live parts by basic insulation shall be permitted when the cutting means is removed if a tool is required for its removal. 9Starting of motor-operated appliances This clause of Part 1 is not applicable to battery-powered machines. For mains operated machines this clause of Part 1 is replaced by the following. Motors shall start under all normal voltage conditions that may occur in use. Centrifugal and other automatic starting switches shall operate reliably and without contact chattering. Compliance is checked by starting the machine three times, at no-load, at a voltage equal to 0,85 times rated voltage or the lower limit of the rated voltage range, with any control device set at maximum speed. For the test the cutting meanss are adjusted according to the manufacturer’s instructions related to this test. The machine shall operate in such a way that safety is not affected. 10Power input and current This clause of Part 1 is not applicable to battery-powered machines. For mains operated machines this clause of Part 1 is applicable except as follows. 10.1 Not applicable. SIST EN 60335-2-77:2010

- 17 - EN 60335-2-77:2010 11Heating This clause of Part 1 is not applicable to battery-powered machines. For mains operated machines this clause of Part 1 is applicable except as follows. 11.5Addition:
The machine shall be operated at rated voltage and operating temperature until the rated power input or the rated current input is reached. When steady stage is reached, the submitted torque shall be measured. When tested by 0,94 and 1,06 times rated voltage the ascertained torque shall be maintained. 12Void 13 Leakage current and electric strength at operating temperature This clause of Part 1 is applicable for class II machines. 14Transient overvoltages This clause of Part 1 is applicable. 15Moisture resistance This clause of Part 1 is applicable except as follows. 15.1.2Modification: The machine shall be rotated during the test along its vertical axis. The rate of rotation shall be 12 ± 2 revolutions per minute. 15.2Addition: Machines fitted with an appliance inlet or cable coupler shall be tested with the appropriate mating connector in place. Air filters are not removed. 16Leakage current and electric strength This clause of Part 1 is applicable for class II machines. 17Overload protection of transformers and associated circuits This clause of Part 1 is applicable. 18Endurance This clause of Part 1 is not applicable to battery-powered machines. For mains operated machines this clause of Part 1 is applicable except as follows. SIST EN 60335-2-77:2010

18.101 Machines shall be so constructed that, in normal use; there will be no electrical or mechanical failure that might impair compliance with this standard. The insulation shall not be damaged, and contacts and connections shall not have worked loose as a result of heating, vibration, etc. Moreover, overload devices shall not operate under normal running conditions. Compliance is checked by the tests of 18.102. 18.102 The machine is operated at no load, series motors being supplied at a voltage such that the rotating speed is the same as that obtained at rated voltage and under normal operation. The machine is operated for 48 h, reduced by the running time necessary for the tests of Clauses 11 and 13. Machines are operated continuously, or for a corresponding number of periods, each period being not less than 8 h. During the test, replacement of carbon brushes is allowed and the machine is lubricated as in normal use. 18.103 During the tests of 18.102, overload protective devices shall not operate. After the tests of 18.102 the machine shall withstand the tests of Clause 16. Connections, handles, guards, brush-caps and other fittings or components shall not have worked loose, and there shall be no deterioration impairing safety. 19 Abnormal operation For mains operated machines this clause of Part 1 is applicable except as follows: 19.7Addition: This test is not made on machines with flexible or freely pivoting cutting means mounted on a generally circular drive unit. 19.9 Not applicable 20Stability and mechanical hazards This clause of Part 1 is applicable except as follows.
20.2 Not applicable. 20.101Power driven components All power driven components except the cutting means and the ground-contacting parts of pedestrian-controlled self-propelled machines shall be guarded to prevent contact with these parts during normal operation. All openings and safety distances shall conform to 4.5.2 and 4.5.3 of EN ISO 13857:2008 unless otherwise specified in this standard. Guards shall be provided to prevent accidental contact with hazardous servicing points when the machine is serviced. SIST EN 60335-2-77:2010

- 19 - EN 60335-2-77:2010 20.102Guard attachment All guards shall be permanently attached to the machine and shall not be detachable without the use of tools and shall withstand a force of 75 N in any direction.
The opening of guards, except for the following, shall require the use of a tool: a) the opening of removable interlocked guards which disable the protected moving parts; b) the opening of hinged, automatically closing guards for grass discharge chutes. Compliance to be checked by inspection and functional test. 20.103Controls 20.103.1General For operator controls other than those for: − height of cut setting; −
cutting means
setting or adjustment on cylinder machines; − grass catcher discharge arrangements. The location and range of movement of operator controls shall remain within anthropometric dimensions given in Figure 1. The operating range of operator controls, which do not require sustained activation, 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 a motor speed greater than the maximum operating speed (see 3.117) by use of any control or by simple adjustments made by using standard tools. For machines with traction drive the drive shall automatically stop or disengage when the operator leaves the normal operating position. On self-propelled machines it shall be possible to engage or disengage the traction drive when the cutting means is operating. Controls shall have the function, direction and/or method of operation identified. Controls which may give rise to a hazard when operated shall be marked or so placed as to indicate clearly which part of the machine they control.
20.103.2Operator presence control Machines shall be fitted with a device on the control handle, which will automatically stop cutting means rotation when the operator’s hands are removed from the handle. This may be accomplished, for example, either by stopping the drive motor or by an intermediate cutting means brake/clutch mechanism. For restarting cutting means rotation the control shall require two separate actions. If these actions are to be carried out by using the same hand then the actions shall be totally distinct thus to prevent accidental “switch on”. SIST EN 60335-2-77:2010

Dimensions in millimetres
Key 1 Operator zone 2 Lower forward zone
3 Handle NOTE 1 The operator zone is the area into which the extremities of a 95th percentile male can reach from the normal operator position. NOTE 2 The lower forward zone is the area into which a 5th percentile male or a 50th percentile female can reach when against the handle. This zone can also be reached by a 95th percentile leaning forward against the handle. NOTE 3 All barriers (handles) within the operator zone will reduce the zone by the space occupies and protected by the barrier. NOTE 4 The operator zone includes the maximum range of movement of all frequently used operator controls but is not intended to represent preferred operator control positions. Figure 1 – Operator zone – Pedestrian controlled lawn mower (see 20.103) SIST EN 60335-2-77:2010

- 21 - EN 60335-2-77:2010 Linear dimensions in millimetres
Key 1 Foot probe 2 Areas to be probed
3 Discharge opening 4 Cutting means tip circle 5 Side of discharge chute probed if less than 3 mm bel
...