Bsi bs en 13683 2003 + a2 2011 (2015)

#This standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings and being of any shape complying with the safety

Amendments/corrigenda issued since publication

This British Standard, was

published under the authority

of the Standards Policy and

The start and finish of text introduced or altered by amendment is indicated

in the text by tags Tags indicating changes to CEN text carry the number ofthe CEN amendment For example, text altered by CEN amendment A1 isindicated by  Text altered by CEN amendment A2 is indicated by .The UK participation in its preparation was entrusted to Technical CommitteeAGE/20, Powered lawn and garden equipment

A list of organizations represented on this committee can be obtained onrequest to its secretary

The publication does not purport to include all the necessary provisions of acontract Users are responsible for its correct application

Compliance with a British Standard cannot confer immunity from legal obligations.

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions

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

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M I T E E FÜ R N O R M U N G

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members

Ref No EN 13683:2003+A2:2011: E

Incorporating corrigendum June 2013

Contents Page

Foreword 4

0 Introduction 5

1 Scope 6

2 Normative references 6

3 Terms and definitions 7

4 List of significant hazards 11

5 Safety requirements and/or measures 13

5.1 General 13

5.2 Access to power driven components 13

5.2.1 Feed safety openings 13

5.2.2 Discharge chutes 22

5.2.3 Guards 26

5.2.4 Power driven components except cutting means 26

5.3 Hot exhaust surfaces 27

5.3.1 General 27

5.3.2 Test equipment and method of test 27

5.3.3 Test acceptance 27

5.4 Controls 29

5.4.1 Location 29

5.4.2 Stopping and starting the power source 29

5.4.3 Identification of controls 29

5.5 Protection from exhaust fumes 29

5.6 Electrical requirements 29

5.6.1 General 29

5.6.2 Low voltage battery circuits (not including magneto grounding circuits) 29

5.6.3 Overload protection 30

5.6.4 Terminals and uninsulated electrical parts 30

5.7 Liquid spillage 30

5.8 Transport 30

5.9 Verification of safety requirements 30

5.9.1 Test conditions 30

5.9.2 Thrown object test (see 5.2.3.1) 31

5.9.3 Stability 34

5.9.4 Dynamic stability test 34

5.10 Noise 35

5.10.1 Noise reduction as a safety requirement 35

5.10.2 Verification of requirements on noise – Noise measurement 35

6 Information for use 36

6.1 Instruction for use 36

6.2 Marking 37

6.2.1 Minimum marking 37

EN 13683:2003+A2:2011 (E)

C.1 Corrugated fibreboard target panel composition 44

C.2 Corrugated fibreboard penetration test 44

C.2.1 General 44

C.2.2 Test fixture 44

C.2.3 Corrugated fibreboard samples 44

C.2.4 Procedure 44

C.2.5 Acceptance criteria 45

Annex D (informative) Safety instructions 47

D.1 General 47

D.2 Safe operating practices 47

D.2.1 Training 47

D.2.2 Preparation 47

D.2.3 Operation 48

D.2.4 Maintenance and storage 49

D.2.5 Additional safety instructions for units with bagging attachments 49

Annex E (normative) Symbols and/or pictograms 50

E.1 General 50

E.2 Pictograms 50

Annex F (normative) Noise test code – Engineering method (grade 2) 52

F.1 Scope 52

F.2 A-weighted sound power level determination 52

F.3 A-weighted emission sound pressure level measurement 53

F.4 Requirements for test floor 57

F.4.1 Artificial surface 57

F.4.2 Natural grass 57

F.5 Installation, mounting and operating conditions 57

F.6 Measurement uncertainties and declaration of noise emission values 58

F.7 Information to be recorded and reported 58

Annex G (informative) Example of a material and construction fulfilling the requirements for an artificial surface 59

G.1 Material 59

G.2 Construction 59

Annex ZA (informative) #Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC$ 61

Bibliography 62

BS EN 13683:2003+A2:2011

Foreword

This document (EN 13683:2003+A2:2011) has been prepared by Technical Committee CEN/TC 144

“Tractors and machinery for agriculture and forestry”, the secretariat of which is held by AFNOR This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2011, and conflicting national standards shall be withdrawn at the latest by September 2011

This document includes Amendment 1, approved by CEN on 2009-03-14 and Amendment 2, approved by CEN on 2010-12-13

This document supersedes #EN 13683:2003+A1:2009$

The start and finish of text introduced or altered by amendment is indicated in the text by tags ! " and # $

Annexes A, D and G are informative Annexes B, C, E and F are normative

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, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom

EN 13683:2003+A2:2011 (E)

0 Introduction

This document is a type C standard as stated in EN 1070:1998

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

BS EN 13683:2003+A2:2011

1 Scope

This European Standard specifies safety requirements and their verification for the design and construction of hand fed, shredders/chippers with integral power source and with or without vacuum assisted collection which are designed primarily to reduce organic material to smaller pieces It is only applicable to shredders/chippers that are designed for use outdoors in a stationary position by an operator standing on the ground #This standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings and being of any shape complying with the safety distance requirements of this standard with regard to contact with the cutting means, that in total will fit into a square of 250 mm × 250 mm measured at the plane of the opening(s).$

#deleted text$

This standard describes methods of elimination or reduction of hazards arising from the use of shredders/chippers In addition it specifies the type of information to be provided by the manufacturer

on safe working practices

This standard does not cover requirements for:

 units driven by an external power source;

 mobile use of units which can be used in both stationary and mobile modes;

 units with powered discharge intended to broadcast material or load vehicles;

#

 units with separate mechanically powered feed intake or attachments;$

 units with cutting means of either one or more non-metallic filaments, or one or more non-metallic cutting elements pivotally mounted on a generally circular central drive unit, where these cutting elements rely on centrifugal force to achieve cutting, and have a kinetic energy for each single cutting means of less than 10 J;

#

 electrical powered and battery-powered shredders/chippers.$

Environmental hazards and EMC have not been considered in this standard

This standard deals with all significant hazards, hazardous situations and events relevant to shredders/chippers, when they are used as intended (see clause 4)

This document is not applicable to shredders/chippers which are manufactured before the date of publication of this document by CEN

2 Normative references

EN 13683:2003+A2:2011 (E)

#EN 953:1997+A1:2009, Safety of machinery — Guards — General requirements for the design

and construction of fixed and movable guards$

EN 954-1:1996, Safety of machinery — Safety-related parts of control systems — Part 1: General

principles for design

EN 1070:1998, Safety of machinery — Terminology

#EN 61032:1998, Protection of persons and equipment by enclosures — Probes for verification

(IEC 61032:1997)$

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)

#EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control systems — Part 1:

General principles for design (ISO 13849-1:2006)

EN ISO 13857:2008,Safety of machinery — Safety distances to prevent hazard zones being reached

by upper and lower limbs (ISO 13857:2008)$

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 11684:1995, 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 1070:1998 and the following apply

BS EN 13683:2003+A2:2011

feed safety opening

opening through which material is passed located at the relevant safety distance from the cutting means This may be the same as the feed intake opening (3.5) or at some point between the feed

intake opening and the cutting means It is W in Table 1

3.5

feed intake opening

opening through which material is inserted to be fed to the cutting mechanism A feed intake opening can become feed safety opening(s) if the relevant safety distance from the cutting means is met

material discharge deflector

fixed or movable component used to direct the flow of processed material discharging from the machine

3.9

maximum operating speed

highest power source speed obtainable when adjusted in accordance with manufacturer's specifications and/or instructions with the cutting means engaged

#3.10

operator presence control

device that automatically interrupts power to the cutting means when the operator’s actuating force is removed$

3.11

power source

engine or motor which provides energy for linear or rotational movement

EN 13683:2003+A2:2011 (E)

3.13

shredder/chipper

machine designed for use in a stationary position having one or more cutting means for the purpose

of reducing organic materials to smaller pieces See Figures 1, 2 and 3

EN 13683:2003+A2:2011 (E)

4 List of significant hazards

This clause contains for defined danger zones all the significant hazards, hazardous situations and events, as far as they are dealt with in this standard, identified by risk assessment as significant for these types of machines and which require specific action by the designer or manufacturer to eliminate or to reduce the risk (see Table 1) It is the responsibility of the manufacturer to check whether or not the safety requirements recommended by the standard apply to each significant hazard presented by its specific machine and to validate that the risk assessment is complete with particular attention to:

 intended use of the machine including maintenance, setting and cleaning and its reasonably foreseeable misuse;

 identification of all significant hazards associated with the machine

Table 1 — List of significant hazards associated with shredders/chippers

Ref

No

Hazard Location or event Reference of this standard

Hazards, hazardous situations and hazardous events

Mechanical hazards due to:

- machine parts or workpieces, e.g.:

a) relative location; Safe positioning of the machine 6.1; annex D

b) mass and velocity (kinetic energy of elements

in controlled or uncontrolled motion);

Dynamic stability of machine 5.9.4 c) inadequacy of mechanical strength; Guard failure/strength 5.2.3.2

1.3 Cutting or severing hazard Feeding material into the

2 Electrical hazards due to:

2.1 Contact of persons with live parts (direct contact) High voltage and ignition parts 5.6.4

2.2 Contact of persons with parts which have

become live under faulty conditions (indirect

contact)

Damage caused by oil, fuel, abrasion etc

5.6.2.1

3 Thermal hazards, resulting in:

3.1 Burns, scalds and other injuries by a 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

Contact with hot parts 5.3

4 Hazards generated by noise, resulting in:

4.1 Hearing loss (deafness), other physiological

disorders (e.g loss of balance, loss of

awareness)

Hearing damage due to machine and/or processing of material

5.10; 6.1; 6.2; annexes D, F and G

BS EN 13683:2003+A2:2011

Table 1 (continued) — List of significant hazards associated with shredders/chippers

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 of harmful

fluids, gases, mists, fumes, and dusts

Breathing of engine exhaust fumes

5.5; 6.1 and annex D 7.2 Fire or explosion hazard Refuelling 6.1 and annex D

8 Hazards generated by neglecting ergonomic

principles in machinery design as, e.g

8.6 Human error, human behaviour Incorrect use etc

Keep bystanders away

6.1; annex D 6.2

8.7 Inadequate design, location or identification of

manual controls

Location of stop/start contol(s) 5.4.1 Identification of control(s) 5.4.3

10 Unexpected start-up, unexpected

over-run/over-speed (or any similar malfunction)

from:

10.2 Restoration of energy supply after an interruption Unexpected starting of cutting

means after power failure

5.4.2

10.6 Errors made by the operator (due to mismatch of

machinery with human characteristics and

13 Failure of the power supply Unexpected start up of cutting

means after power failure

5.4.2

14 Failure of the control circuit Durability of interlock devices 5.2.3.1

guards or with guards fitted incorrectly

5.2.3.1; 6.1; annex D

16 Break-up during operation Cutters breaking in use 5.9.4.2

17 Falling or ejected objects or fluids Thrown objects from feed intake 5.9.2; 6.1; annex D

18 Loss of stability / overturning of machinery Static stability 5.9.3

19 Slip, trip and fall of persons (related to

24.1 Hazards from the engine and the batteries Harm from battery vapours

Spillage of battery and fluid

5.6.2.2; 5.7

of the machine)

5.2 Access to power driven components

5.2.1 Feed safety openings

5.2.1.1 General

#To safeguard against contact with the cutting means through the feed safety opening(s) the machine shall either:

 be constructed to meet the dimensional requirements given in 5.2.1.2 or 5.2.1.3 and Table 2, or

 if a straight rod of 1 m length and 12 mm diameter will not pass through the opening to contact the cutting means the tortuous path test of 5.2.1.4 shall apply

Where a feed intake opening is divided into two or more feed safety openings, the device that creates the division shall be rigid and permanently attached to the feed intake opening.$

5.2.1.2 #Dimensional requirements - Single feed safety openings

Where a safety opening is a slot, square or round the safety opening shall, as a minimum be in accordance with Table 2

Where a feed safety opening is of an irregular shape, the size of opening shall be established by: a) determining:

 the diameter of the smallest round opening and

 the side of the smallest square opening and

 the width of the narrowest slot opening

into which the irregular opening can be completely inserted (see EN ISO 13857:2008, Figure 3); b) selecting the corresponding three minimum safety distances according to Table 2

The shortest safety distance of the three values selected according to b) may be used

Verification

The measured dimensions of the safety openings, as defined in this clause, and safety distances shall comply with Table 2.$

BS EN 13683:2003+A2:2011

#Table 2 — Safety distances of cutting means from feed safety openings

Feed safety opening (W mm) Distance - Feed safety opening to cutting means (D mm)

a D is reduced to ≥ 200 mm if the longest side of the slot is ≤ 50 mm

b (i) Where the height (h) is < 1 200 mm and (α) ≤ 40°, D shall be 850 mm measured as the shortest

distance to the cutting means (see Figures 4 a) and 4 b))

(ii) Where the height (h) is < 1 200 mm and 90° ≥ (α) > 40°, D shall be measured as the shortest distance

from the outer edge of the feed opening to the cutting means (see Figure 4 c)), D shall be determined by the following conditions:

 D ≥ L + 150 (2 + sin α); and

 L ≥ 550 mm

c (i) Where the height (h) is ≥ 1 200 mm and (α) ≤ 40°, D shall be measured as a chain measurement,

subject to the following two conditions (see Figures 4 d), 4 e) and 4 f)):

 d 1 + d2 … + d n ≥ [ 850 - ½ (h -1 200) ] mm; and

 L ≥ 550 mm

(ii) Where the height (h) is ≥ 1 200 mm and 90° ≥ (α) > 40°, D shall be measured as a chain measurement,

subject to the following two conditions (see Figures 4 g) and 4 h)):

EN 13683:2003+A2:2011 (E)

a)

b)

BS EN 13683:2003+A2:2011

c)

d)

EN 13683:2003+A2:2011 (E)

e)

f)

BS EN 13683:2003+A2:2011

g)

EN 13683:2003+A2:2011 (E)

h) Key

h height of lowest point of feed intake opening from ground

L minimum distance from the highest point of the cutting means to (W)

P point on the feed intake with distance ≥ 1200 mm from the ground P is starting point for the chain Measurement from the feed intake opening to the highest point of the cutting means

#W feed intake width at the plane of the feed safety opening(s)$

α angle between a vertical line through the centre of the cutting means and a straight line from the point of the cutting means nearest to the opening to the highest point on the lower side of the inside of the feed inlet

Figure 4 — Distance from feed safety opening to cutting means (D mm)

#While feed safety openings have to fit into an intake area no more than 250 mm × 250 mm, the feed intake opening leading into the feed safety opening(s) may be larger provided that the required safety distances are maintained.$

BS EN 13683:2003+A2:2011

5.2.1.3 #Combination of safety openings

Combinations of slots, squares and rounds having safety opening sizes of not more than 45 mm shall create a pinch point less than or equal to 30 mm wide and with a length of at least 20 mm (see Annex A, Figures A.1 to A.4)

Combinations of slots, squares and rounds having a safety opening size greater than 45 mm and not more than 50 mm shall create a pinch point less than or equal to 26 mm wide and with a length of at least 20 mm (see Annex A, Figures A.5 to A.8)

Combinations of slots, squares, and/or rounds with a safety opening size more than 50 mm shall create a pinch point of less than or equal to 20 mm wide having sufficient length to prevent breakage increasing the width of the pinch point during use

Each section of the combination of safety openings shall be considered separately when determining the corresponding safety distance according to Table 2 The minimum safety distance of 200 mm required by Table 2 shall be fulfilled

NOTE The dimensions of pinch points are under study.$

5.2.1.4 Tortuous path test

The arm probe (see Figure 5) shall not be able to make contact with the cutting means when it is inserted into the feed intake opening up to a maximum distance of 850 mm measured from the point

of the upper edge of the feed intake opening nearest to the cutting means The articulations of the probe shall be manufactured to enable a rotation of ± 90° about the articulation axis The movements

of the joints of the probe shall be free enough to allow easy articulation as the probe is inserted into the opening The probe shall be applied with a force not exceeding 20 N

The arm probe shall be twisted and moved in any direction allowed by the joints when approaching the cutting means If necessary, one or more sections of the machine may be cut away to allow the probe to be configured such that it penetrates as far as possible towards the cutting means If a section is removed this shall not allow the probe to penetrate further than it would have done before the removal of the section(s)

EN 13683:2003+A2:2011 (E)

Dimensions in millimetres

Key

1 Axis of rotation of “elbow” joint

2 Axis of rotation of “wrist” joint

3 Axes of rotation of “finger” joints

NOTE This Figure is not to scale

Figure 5 — Arm probe for testing tortuous path guarding of cutting means through the feed

intake opening

BS EN 13683:2003+A2:2011

of the cutting means and the requirements of i) and/or ii) shall be fulfilled:

i) where the distance of the lowest edge of the discharge chute is greater than 30

mm from the ground (see Figures 6 a) and 6 b) dimension 2), any point of the outer edge

of the guard to the cutting means shall be at least 550 mm, measured as the shortest distance;

ii) where the distance of the lowest edge of the discharge chute is less than or equal

to 30 mm from the ground (see Figures 6 a) and 6 b) dimension 1), any point of the outer edge of the guard to the cutting means shall be at least 230 mm, measured as the shortest distance;

NOTE 1 These shortest distances can be achieved by chain measurement

b) an operator presence control in addition to the requirements of 5.4.2, provided that no point of the discharge chute is more than 350 mm from the ground The highest edge of the discharge chute opening shall extend at least 3 mm below the lowest part of the cutting means, and the minimum distance from any point on the outer edge of the discharge chute to the cutting means shall be

230 mm (see Figures 6 a) and 6 b));

NOTE 2 These shortest distances can be achieved by chain measurement

c) where the highest edge of the discharge opening is greater than 350 mm from the ground, and the opening size is not more than 120 mm × 120 mm, the highest edge of the discharge chute opening shall extend at least 3 mm below the lowest part of the cutting means and the safety distance shall conform to the principles set out in EN ISO 13857:2008, 4.2.4.1, or 4.2.4.3 together with Table 4 as appropriate;

d) where the highest edge of the discharge opening is greater than 350 mm from the ground, and the opening size is larger than 120 mm × 120 mm, the highest edge of the discharge chute shall extend at least 3 mm below the lowest part of the cutting means and the safety distance shall be

≥ 850 mm The maximum discharge opening size shall be 250 mm × 250 mm;

e) the highest edge of the discharge chute opening shall extend at least 3 mm below the lowest part

of the cutting means and it shall not be possible to come into contact with the cutting means by using test probe B (see Figure 7) of EN 61032:1998 The tip of the probe shall be inserted a maximum of 850 mm inside the discharge opening towards the cutting means, measured from the most unfavourable point on the discharge opening, with a force of not more than 20 N;

f) the discharge chute terminates in a collector, which is interlocked so that access to the cutting means is prevented while the machine is running and it shall not be possible to come into contact with the cutting means using the test probe shown in Figure 7 If the collector contains openings, the tip of the probe shall be inserted a maximum of 850 mm inside these openings towards the cutting means, measured from the most unfavourable point on the discharge opening, with a force of not more than 20 N

EN 13683:2003+A2:2011 (E)

#Dimensions in millimetres

Figure 6 a) Key

A1, A2, A3, …, An points on discharge

1 If A1, A2 is ≤ 30 mm above the ground surface there shall be a safety distance of ≥ 230 mm

to the cutting means, see 5.2.2 a) ii)

2

If A3, …, An is > 30 mm above the ground there shall be a safety distance of ≥ 550 mm to cutting means, see 5.2.2 a) i)

BS EN 13683:2003+A2:2011

Dimensions in millimetres

Figure 6 b) Key

If A1, A2 is ≤ 30 mm above the ground surface there shall be a safety distance of ≥ 230 mm

to the cutting means, see 5.2.2 a) ii)

5.2.3 Guards

5.2.3.1 Attachment

#Guards shall be provided to control access to the cutting means Guards allowing access to the cutting means shall be interlocked as a minimum in accordance with category 1 of EN ISO 13849-1 The interlock shall cause the moving parts to come to rest before access can be gained While the cutting means is exposed it shall not be possible to drive the cutting means Fixed guards, in accordance with EN 953, shall not be detachable without the use of tools, or the construction of the machine shall be such that it can not be used without the guard in its guarding position The use of fixed guards shall be restricted to applications where the need for guard removal is infrequent

NOTE Categories are being used as an interim measure, performance levels will be considered at the next review

Fixed guards that need to be removed for maintenance shall be retained in position by fixings that are retained in the guard or machine when the guard is removed

Guarding shall be designed to prevent hazardous thrown objects This shall be tested according to 5.9.2.$

For battery start machines the following additional requirement shall apply 2 years after publication of this standard Guards allowing access to the cutting means shall be interlocked at least according to category 1 of EN 954-1:1996, to disable the battery starter

Discharge openings enclosed with a collecting bag or container which when removed do not meet the requirements of 5.2.2 shall be fitted with an interlock which causes the moving parts to come to rest While the cutting means is exposed it shall not be possible to start the power source

Unless otherwise stated all guards shall conform to the relevant parts of 3.22 and 3.23 of

EN ISO 12100-1:2003

5.2.3.2 Strength

Guards shall have adequate strength and be constructed to withstand such rough handling that may

be expected in normal use Guards shall be checked by the following test

Each of three samples of the complete machine shall be subjected to an impact of (6,5 ± 0,2) J on a part

of the relevant guard likely to be the weakest, with the machine standing on a level surface

The tests shall be so conducted that in each test the sample receives an impact in a location different from the other two tests

The impact shall be produced with a smooth solid steel sphere (as used for ball bearings) having a diameter of 50 mm If the part being tested is at an angle of up to 45° to the horizontal, the sphere shall

be allowed to fall vertically from rest to strike the part Otherwise, the sphere shall be suspended by a cord and shall be allowed to fall from rest as a pendulum to strike the part In either case, the vertical travel of the sphere shall be 1,3 m

After the test there shall be no visible signs of cracking and the requirements of 5.2.1 and 5.2.2 shall be maintained

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 is larger than 10 cm2 (see 5.3.3)

5.3.2 Test equipment and method of test

5.3.2.1 Temperature measuring equipment

The temperature measuring equipment for hot surfaces shall have an accuracy of ± 4 °C

5.3.2.2 Method of test

The test shall be conducted in the shade The power source shall be operated at its maximum operating 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

Allow the hot parts to cool It is not necessary to test the accessibility of hot parts while they are hot When the distance between the identified hot area and the nearest control is > l00 mm, Cone A in Figure 8 shall be used For a distance ≤ l00 mm between the identified hot area and the nearest control, Cone B in Figure 8 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

5.3.3 Test acceptance

The tip or conical surface of Cones A or B shall not be able to make contact with a hot surface area greater than 10 cm2

BS EN 13683:2003+A2:2011

Dimensions in millimetres

Cone A

Cone B Key

5.4.2 Stopping and starting the power source

A power source stopping device shall be provided The device shall not depend on sustained manual pressure for its continued operation This device shall require manual and intentional activation in order to restart the power source, and shall be accessible from designated starting positions Reactivation of the power supply following a failure or disconnection shall not result in the cutting means moving or starting automatically When a cutting means is stopped, for whatever reason, it shall not be possible for it to restart without manual and intentional operation of a control

It shall not be possible to sustain a power source speed greater than the maximum operating speed (see 3.9) by the use of any control or by simple adjustments using standard tools Sealed adjustments shall not be moved when checking the maximum operating speed

For battery start machines a switch operated by a removable key, or a similar device shall be provided The key or similar device shall only be removable when the switch is in the off position

Machines shall not be equipped with a starter operated by means of a loose rope

5.4.3 Identification of controls

Controls, whose purpose is not obvious, shall have the function, direction and/or method of operation clearly identified by a durable label or mark (see 6.2.3) Where symbols are used they shall be in accordance with ISO 3767-1:1998, ISO 3767-3:1995 and ISO 3767-4:1993

Detailed instructions on the operation of all controls shall be provided in an instruction handbook

5.5 Protection from exhaust fumes

The exhaust shall be directed downwards or away from the operator

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 possible damage to the cables by cutting or abrasion

BS EN 13683:2003+A2:2011

Compliance shall be checked by inspection

5.6.2.2 Battery installation

The compartment for a vented storage battery shall have openings to provide ventilation

Compliance shall be checked by inspection

5.6.3 Overload protection

All circuits, except starter motor and high tension ignition circuits, shall be provided with overload protection devices in the underground line near the battery terminal For a grounded system the overload protection shall be in the ungrounded line For a two-wire system it may be located in either wire

Compliance shall be checked by inspection

5.6.4 Terminals and uninsulated electrical parts

Terminals and uninsulated electrical parts, and two-wire non-grounded systems shall be protected against short-circuiting 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

5.7 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 30° from the vertical Weeping at vent systems shall not be considered spillage

Compliance shall be checked by practical test and inspection

The base of the test enclosure shall be horizontal and the walls shall consist of eight target panels mounted perpendicular to the base so as to form an octagon as in Figure 9 Each target panel shall consist of a lower section of corrugated fibreboard and an upper section of Kraft paper The lower sections of corrugated fibreboard shall extend from the base up to a height of and 900 mm and the Kraft paper shall extend from these lower sections up to a total height of 2000 mm

The composition of the base and the lower sections of the target panels shall meet the specifications given in annex B and annex C The upper sections of the target panels and the top horizontal layer shall be of 80 g/m² Kraft paper stretched lightly over appropriately sized frames made of narrow section rigid material The vertical target panels shall generally be located at right-angles to a radial line extending (750 ± 50) mm from the discharge opening(s) of the machine (see Figure 9) If any other part of the machine interferes with any part a target panel, the target panel shall be moved outwards just sufficiently to avoid the interference

Inside the total enclosure additional target panels of 80 g/m² Kraft paper, fitted to a frame, shall be mounted (200 ± 10) mm above, and project at least 200 mm beyond, all sides of the feed intake opening(s) If the design of the machine and/or the enclosure prevents these distances from being maintained, these panels shall be arranged so as to achieve the closest possible dimensional compliance (see Figure 10)

NOTE In order to facilitate the counting of hits, the target panel supports should be designed to allow sliding

in and out of at least one of the vertical target panels

A line parallel to the base and 450 mm high shall be marked on each target panel

BS EN 13683:2003+A2:2011