SIST EN 13525:2005+A1:2007
(Main)Forestry machinery - Wood chippers - Safety
Forestry machinery - Wood chippers - Safety
This document specifies safety requirements and their verification for design and construction of transportable, i.e. self-propelled, mounted, semi-mounted and trailed, wood chippers used in forestry, agriculture, horticulture and landscaping.
This document applies to chippers, used when stationary, which are manually loaded with wood through a horizontal or near horizontal infeed chute and where the infeed action is performed by the chipping components acting as infeed components or by separate integrated infeed components such as rollers or chain conveyors integral to the infeed chute. The included wood chippers may be powered either by an external power take-off, hydraulics etc. or by an integral power source such as an internal combustion engine.
This document does not cover:
- requirements relating to national road regulations arising from transport between work sites;
- hazards arising from any self-propelled function;
- hazards arising from the transmission of power from an external power source - e.g. power take-off drive shafts;
- any machines where the infeed chute is fitted with an extension table or the integrated chain conveyor is protruding beyond the outermost lower edge of the infeed chute;
- hazards arising from the engine pull starting of an integral power source;
- hazards arising from mechanical loading;
- vertical infeed chute chippers;
- electromagnetic aspects of the chippers;
- shredders/chippers to be covered by EN 13683;
- any machines where the infeed chute is fitted with a belt type conveyor;
- mechanical discharge systems.
This document deals with all significant hazards, hazardous situations and events relevant to wood chippers, when they are used as intended and under the conditions foreseen by the manufacturer (see Annex A).
In addition, it specifies the type of information to be provided by the manufacturer on the safe use of these machines.
It is not applicable to environmental hazards (except noise).
This doc
Forstmaschinen - Buschholzhacker - Sicherheit
Dieses Dokument enthält Sicherheitsanforderungen und deren Überprüfung für die Konstruktion und den Bau von beweglichen z. B. selbstfahrenden, angebauten, aufgesattelten und gezogenen Buschholzhackern, die in der Land- und Forstwirtschaft, dem Gartenbau und der Landschaftspflege eingesetzt werden.
!Dieses Dokument gilt für stationär betriebene Buschholzhacker, die von Hand mit Holz über einen waagerechten oder nahezu waagerechten Zuführtrichter beschickt werden und bei denen die Zufuhr durch die Hackwerkzeuge, die als Zuführelemente fungieren, oder durch getrennte, eingebaute Zuführelemente wie z. B. Walzen- oder Kettenförderer, die in den Zuführtrichter eingebaut sind, erfolgt. Die in den Anwendungsbereich fallenden Buschholzhacker können entweder durch eine externe Antriebsquelle wie z. B. der Zapfwelle eines Traktors, hydraulisch usw. oder durch eine integrierte Antriebsquelle wie z. B. einem Verbrennungs- oder Elektromotor angetrieben werden. "
Dieses Dokument behandelt nicht:
nationale straßenverkehrstechnische Anforderungen, die für den Transport zwischen zwei Einsatzorten gelten;
Gefahren in Hinblick auf die Selbstfahrfunktion;
Gefahren in Verbindung mit der Kraftübertragung durch externe Antriebsquellen, z. B. Gelenkwellen;
!Maschinen, bei denen der Zuführtrichter mit einem Verlängerungstisch ausgerüstet ist oder der eingebaute Kettenförderer über die äußerste, untere Kante des Einführtrichters hinausragt; "
Gefahren in Verbindung mit Seilzug-Starteinrichtungen von integrierten Antriebsquellen;
Gefahren in Verbindung mit mechanischem Beschicken;
Buschholzhacker mit senkrechtem Zuführtrichter;
Gesichtspunkte der elektromagnetischen Verträglichkeit von Buschholzhackern;
Gartenhäcksler nach EN 13683;
!Maschinen, die mit einem Bandförderer ausgerüstet sind;
Mechanische Entladesysteme. "
Machines forestieres - Déchiqueteuses - Sécurité
Le présent document spécifie les prescriptions de sécurité et leurs vérifications pour la conception et la construction des déchiqueteuses mobiles, c’est-a-dire automotrices, portées, semi-portées et traînées, employées en foresterie, agriculture, horticulture et paysagisme.
!Le présent document s'applique aux déchiqueteuses qui sont alimentées manuellement en bois dans une goulotte d’alimentation de direction horizontale ou presque horizontale et dont l’alimentation est effectuée par des éléments de déchiquetage agissant comme des éléments d’alimentation mécaniques ou par des éléments d’alimentation intégrés tels que des convoyeurs a rouleaux ou chaînes intégrés a la goulotte d’alimentation. Les déchiqueteuses peuvent etre entraînées soit par une prise de force extérieure, hydraulique, etc. soit par une source de puissance intégrée telle qu’un moteur a combustion interne."
Le présent document ne couvre pas :
— les prescriptions relatives aux codes de la route nationaux liés au transport entre les sites de travail ;
— les phénomenes dangereux dus a toute fonction automotrice ;
— les phénomenes dangereux provenant de la transmission de puissance depuis une source extérieure, par exemple, arbres de transmission a cardans de prise de force ;
— !toute machine dont la goulotte d’alimentation est équipée d’une table d’extension ou dont le convoyeur a chaîne intégré dépasse du bord inférieur extérieur de la goulotte d’alimentation ;"
— les phénomenes dangereux provenant du démarrage du moteur par tirage d’une source de puissance intégrée ;
— les phénomenes dangereux dus a une charge mécanique ;
— les déchiqueteuses a goulotte d'alimentation verticale ;
— les aspects électromagnétiques des déchiqueteuses ;
— les broyeurs/déchiqueteurs couverts par l’EN 13683 ;
— !toute machine dont la goulotte d’alimentation est équipée d’un convoyeur a courroie ;
— les systemes d’éjection mécaniques."
Le présent document traite tous les phénomenes dangereux, situations et évé
Gozdarski stroji - Sekalniki - Varnost
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Forestry machinery - Wood chippers - SafetyGozdarski stroji - Sekalniki - VarnostMachines forestieres - Déchiqueteuses - SécuritéForstmaschinen - Buschholzhacker - SicherheitTa slovenski standard je istoveten z:EN 13525:2005+A1:2007SIST EN 13525:2005+A1:2007en,fr,de65.060.80Gozdarska opremaForestry equipmentICS:SLOVENSKI
STANDARDSIST EN 13525:2005+A1:200701-september-2007
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13525:2005+A1
May 2007 ICS 65.060.80 Supersedes EN 13525:2005English Version
Forestry machinery - Wood chippers - Safety
Machines forestières - Déchiqueteuses - Sécurité
Forstmaschinen - Buschholzhacker - Sicherheit This European Standard was approved by CEN on 8 December 2004 and includes Amendment 1 approved by CEN on 13 April 2007.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13525:2005+A1:2007: E
EN 13525:2005+A1:2007 (E) 2 Contents Page Foreword.3 0 Introduction.4 1 Scope.5 2 Normative references.6 3 Terms and definitions.7 4 Safety requirements and/or measures.9 4.1 General.9 4.2 Operator controls.9 4.2.1 General.9 4.2.2 Starting the machine.9 4.2.3 Stopping the machine.10 4.2.4 Infeed stop control.10 4.2.5 Safety and reliability of control systems.14 4.3 Protection against mechanical hazards.15 4.3.1 Stability.15 4.3.2 Risk of break-up during operation.15 4.3.3 Hazards related to infeed components and chipping components.16 4.3.4 Risks due to ejected objects.18 4.3.5 Protection against access to moving power transmission parts.18 4.4 Protection against non-mechanical hazards.19 4.4.1 Noise.19 4.4.2 Hydraulic components.20 4.4.3 Hot surfaces.20 4.4.4 Electrical hazards.20 4.5 Preparation for transport and maintenance.21 5 Verification of the safety requirements and/or measures.22 5.1 General.22 5.2 Stability.22 5.3 Chipping components risk of break-up.23 5.4 Hot surfaces.23 5.4.1 Temperature measuring equipment.23 5.4.2 Test method.23 5.4.3 Test acceptance.24 5.5 Verification of requirements on noise – Measurement of noise emission.24 6 Information for use.24 6.1 Instruction handbook.24 6.2 Marking.26 6.3 Warnings.26 Annex A (normative)
List of significant hazards.28 Annex B (normative)
Noise test code - Engineering method (grade 2).32 Annex C (normative)
!!!!Machines with integrated feed chain conveyor.35 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC.38 Bibliography.39
EN 13525:2005+A1:2007 (E) 3
Foreword This document (EN 13525:2005+A1:2007) 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 November 2007 and conflicting national standards shall be withdrawn at the latest by November 2007. This document includes Amendment 1, approved by CEN on 2007-04-13. This document supersedes EN 13525:2005. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 13525:2005+A1:2007 (E) 4 0 Introduction This document is a type C standard as stated in EN ISO 12100-1. 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.
EN 13525:2005+A1:2007 (E) 5 1 Scope This document specifies safety requirements and their verification for design and construction of transportable, i.e. self-propelled, mounted, semi-mounted and trailed, wood chippers used in forestry, agriculture, horticulture and landscaping. !This document applies to chippers, used when stationary, which are manually loaded with wood through a horizontal or near horizontal infeed chute and where the infeed action is performed by the chipping components acting as infeed components or by separate integrated infeed components such as rollers or chain conveyors integral to the infeed chute. The included wood chippers may be powered either by an external power take-off, hydraulics etc. or by an integral power source such as an internal combustion engine." This document does not cover: requirements relating to national road regulations arising from transport between work sites; hazards arising from any self-propelled function; hazards arising from the transmission of power from an external power source – e.g. power take-off drive shafts; !any machines where the infeed chute is fitted with an extension table or the integrated chain conveyor is protruding beyond the outermost lower edge of the infeed chute;" hazards arising from the engine pull starting of an integral power source; hazards arising from mechanical loading; vertical infeed chute chippers; electromagnetic aspects of the chippers; shredders/chippers to be covered by EN 13683; !any machines where the infeed chute is fitted with a belt type conveyor; mechanical discharge systems." This document deals with all significant hazards, hazardous situations and events relevant to wood chippers, when they are used as intended and under the conditions foreseen by the manufacturer (see Annex A). In addition, it specifies the type of information to be provided by the manufacturer on the safe use of these machines. It is not applicable to environmental hazards (except noise). This document is not applicable to wood chippers which are manufactured before the date of publication of this document by CEN.
EN 13525:2005+A1:2007 (E) 6 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 294:1992, Safety of machinery – Safety distance to prevent danger zones being reached by the upper limbs EN 563:1994, Safety of machinery – Temperatures of touchable surfaces – Ergonomics data to establish temperature limit values for hot surfaces EN 811:1996, Safety of machinery – Safety distances to prevent danger zones being reached by the lower limbs EN 953:1997, 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 982:1996, Safety of machinery – Safety requirements for fluid power systems and their components – Hydraulics EN 1175-2:1998, Safety of industrial trucks – Electrical requirements – Part 2: General requirements of internal combustion engine powered trucks EN 10025-2:2004, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels EN 60204-1:1997, Safety of machinery – Electrical equipment of machines – Part 1: General requirements (IEC 60204-1:1997) EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) EN 60947-5-1:2004, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements – Electromechanical control circuit devices (IEC 60947-5-1:2003) 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 4871:1996, Acoustics – Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 9614-1:1995, Acoustics – Determination of sound power levels of noise sources using sound intensity – Part 1: Measurements at discrete points (ISO 9614-1:1993) EN ISO 9614-2:1996, Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning (ISO 9614-2:1996) 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 11204:1995, Acoustics – Noise emitted by machinery and equipment – Measurement of emission sound pressure levels at a work station and at other specified positions – Method requiring environmental corrections (ISO 11204:1995)
EN 13525:2005+A1:2007 (E) 7 EN ISO 11688-1:1998, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12100-1:2003, Safety of machinery – Basic concepts, general principles for design – Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2:2003, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical principles (ISO 12100-2:2003) ISO 4413:1998, Hydraulic fluid power – General rules relating to systems ISO 11684:1995, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment – Safety signs and hazard pictorials – General principles IEC 60245-1:2003, Rubber insulated cables – Rated voltages up to and including 450/750 V – Part 1: General requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 and the following apply. 3.1 wood chipper machine designed to reduce wood into chips 3.2 chipping components rotating disc or drum or similar device with cutting tools or screw arrangement that performs the chipping operation and may perform also the infeed operation 3.3 infeed components rollers and/or conveyors which feed wood into the chipping components 3.4 loading method of presenting wood to the machine 3.4.1 horizontal loading method where the wood is presented to the machine from its side in a horizontal direction 3.4.2 manual loading method where the wood is presented to the machine is done manually by the operator 3.5 infeed chute device through which wood is fed and guided to the chipping components and which may also provide the required safety distances !3.6 integrated chain conveyor transporting system integral to the infeed chute using chain(s), which presents wood to the infeed components or to the chipping components"
EN 13525:2005+A1:2007 (E) 8 3.7 discharge chute device through which the chipped material is guided away from the chipping components and which may also provide the required safety distances 3.8 run down time time elapsed from the actuation of the stop control device until the chipping and/or infeed components come to a complete stop 3.9 reference plane vertical imaginary plane (a) normal to the feed direction, at a point nearest to the operator (b) during the action of infeeding, where the distance between the infeed components is 25 mm or where the separation of the infeed components is at its minimum if this is greater than 25 mm or where the infeed is achieved by the chipping components alone, the point nearest the operator where the chipping components are accessible 3.10 type A machines machines where, on level ground and with the infeed chute in its designated working position, the outermost lower edge of the infeed chute is 600 mm or more from the ground, see Figure 2 3.11 type B machines machines where, on level ground and with the infeed chute in its designated working position, the outermost lower edge of the infeed chute is less than 600 mm from the ground, see Figure 3 3.12 tool tip circle path described by the outermost point of the cutting tools when rotating around their axis !3.13 mechanical discharge system system that transports the chips away from the chipping mechanism (e.g. a belt conveyor or an auger)"
EN 13525:2005+A1:2007 (E) 9 Dimensions in millimetres
Key a Reference plane b Operator
NOTE This example is a functional representation of a wood chipper and does not illustrate the safety measures required by this document. Figure 1 – Example of wood chipper and reference plane 4 Safety requirements and/or measures 4.1 General Machines shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of EN ISO 12100 for hazards relevant but not significant, which are not dealt with by this document (e.g. sharp edges).
Unless otherwise specified in this document all opening and safety distances shall comply with Tables 1, 3, 4 and 6 of EN 294:1992 and other aspects shall comply with the relevant parts of EN ISO 12100. 4.2 Operator controls 4.2.1 General All machines shall have separate controls for starting/stopping the chipping components and for starting/stopping the infeed action meeting the requirements given below in 4.2.2, 4.2.3, 4.2.4. The safety and reliability of control system shall meet the requirements given in 4.2.5. Controls for stopping the chipping components shall also stop the infeed action. 4.2.2 Starting the machine 4.2.2.1 Where the machine is powered by an external power source, e.g. a tractor power take-off or a hydraulic system, the tractor power-take-off start control or hydraulic system control is regarded as the operator's control for starting the chipping components, infeed components and integral conveyors (where fitted).
EN 13525:2005+A1:2007 (E) 10 4.2.2.2 Where the machine is powered by an integral power source, e.g. an internal combustion engine or an electric motor, the engine or motor start is regarded as the operator's control for starting the chipping components, infeed components and integral conveyors (where fitted). 4.2.2.3 Where an electric starter is used to start the integral power source, unauthorised activation of the starter shall be avoided by using one or more of the following methods: a key operated ignition or starting switch; a lockable cover for the ignition or starting switch; a security ignition or starting lock; a lockable battery disconnection switch. 4.2.3 Stopping the machine 4.2.3.1 Where the machine is powered by an external power source, e.g. tractor power take-off or hydraulic system, the external power source stopping controls such as the tractors engine stop control, the tractor power take-off control or hydraulic system control are regarded as the operator's control for stopping the machine. 4.2.3.2 Where the machine is powered by an integral power source, e.g. an internal combustion engine or electric motor, the engine or motor stop is regarded as the operator's control for stopping the machine. 4.2.3.3 Where integral power source is an internal combustion engine, the engine stop control shall not require sustained manual pressure for its operation and when once actuated it shall not be possible to restart the engine unless the control has been reset. 4.2.4 Infeed stop control 4.2.4.1 General All machines shall have an infeed stop control. The design, position and function of the infeed stop control shall allow the operator when in the designated operating position, if entangled in the wood being fed into the machine, to stop the infeed action. The operator shall be able to engage the infeed stop control, in the direction of infeed, by using parts of the body other than just the hands (e.g. shoulder, elbow, torso, hip, legs etc.). To achieve this, it shall meet the positional requirements given in 4.2.4.2 and functional requirements in 4.2.4.3. Whilst these requirements shall be fulfilled, the design, position and function of the infeed stop control shall seek to minimise inadvertent activation (nuisance tripping) by wood and branches as they are fed into the machine; and opportunities for the operator to remove, disconnect, disable, defeat, or jam the control. 4.2.4.2 Positional requirements 4.2.4.2.1 The infeed stop control shall be located in accordance with either 4.2.4.2.2, see Figure 2 or 4.2.4.2.3, see Figure 3, as appropriate to the height of the outermost lower edge of the infeed chute. At the infeed chute vertical edges, the infeed stop control shall cover a minimum of 0,75 x h. At the relevant horizontal edge, top or bottom, the infeed stop control shall cover the entire width of the edge. 4.2.4.2.2 For type A machines, the infeed stop control shall be located at the sides and at the lower edge of the chute, see Figure 2.
EN 13525:2005+A1:2007 (E) 11 Dimensions in millimetres
Key h Height of the chute side Figure 2 – Location and coverage of the infeed stop control on type A machines 4.2.4.2.3 For type B machines, the infeed stop control shall be located at the sides and at the upper edge of the chute, see Figure 3. Dimensions in millimetres
Key h Height of the chute side Figure 3 – Location and coverage of the infeed stop control on type B machines 4.2.4.2.4 In either location, the position of the infeed stop control in relation to the outermost edge of the infeed chute shall be in accordance with the appropriate Figure 4 or Figure 5 such that: all positions of the infeed stop control that allow or cause infeed action are in front of the outermost edge of the infeed chute, i.e. zone B; from those positions, the infeed stop control shall be able to be moved to a position known as the ‘emergency stop position’, i.e. position C; and this emergency stop position is in the position closest to the outermost edge of infeed chute but sufficiently in front of that edge for the emergency stop position to be successfully engaged, i.e. the respective operation completed, by the operator in the manner described in 4.2.4.1 in the event of entanglement. 4.2.4.2.5 The positions/functions of the infeed stop control shall be clearly indicated on both sides of the infeed chute and also in the instruction handbook. The colour of the infeed stop control shall be preferably red or yellow. Where other colours are used, they shall be bright and in contrast to the background colour of the infeed chute.
EN 13525:2005+A1:2007 (E) 12 4.2.4.2.6 In the case of machines with an integrated feed conveyor, the infeed stop control shall meet the requirements of 4.2.4.2.4. Instead of meeting the location requirements of 4.2.4.2.1 the infeed stop controls shall be provided at the sides and at the outer end of the conveyor. Any reverse action of the conveyor shall have a hold-to-run control located within reach of the operator but outside of reach to the danger zones and in a position providing good visibility of the conveyor and the infeed components.
Key
AA Behind the outermost edge of the infeed chute BB In front of the outermost edge of the infeed chute A Infeed chute B Zone for all positions of infeed stop control that allow or cause infeed or reverse action C Emergency stop position D Outermost lower edge of the infeed chute E Optional additional position for the infeed stop control where the only permitted function is reverse of a hold-to-run type F Direction of infeed G Operator’s position Figure 4 — Schematic representation of the relationship between the positions of the infeed stop control, the outermost lower edge of the infeed chute and the position of the operator when feeding type A machines
EN 13525:2005+A1:2007 (E) 13
Key AA
Behind the outermost edge of the infeed chute BB
In front of the outermost edge of the infeed chute A
Infeed chute B
Zone for all positions of infeed stop control that allow or cause infeed or reverse action C
Emergency stop position D
Outermost upper edge of the infeed chute E
Optional additional position for the infeed stop control where the only permitted function is reverse of a hold-to-run type F
Direction of infeed G
Operator’s position H
Position of the infeed stop control where the only permitted functions are stop or reverse Figure 5 — Schematic representation of the relationship between the positions of the infeed stop control, the outermost upper edge of the infeed chute and the position of the operator when feeding type B machines 4.2.4.3 Functional requirements 4.2.4.3.1 All machines shall comply with 4.2.4.3.2 to 4.2.4.3.6 inclusive. Type B machines shall also meet the requirements of 4.2.4.3.7. Where the infeed stop control incorporates other functions for controlling the infeed components, they shall meet the appropriate requirements of 4.2.4.3.8 to 4.2.4.3.10. 4.2.4.3.2 Actuation of any part of the infeed stop control shall have the same functional result. 4.2.4.3.3 Movement of the infeed stop control from zone B to position C, as defined in 4.2.4.2.4, shall stop infeed action. Actuation to the emergency stop position shall have priority over any other controls used to operate the infeed components as defined in 4.2.4.3.6. 4.2.4.3.4 The force required to actuate the infeed stop control from zone B to position C (see Figures 4 and 5) shall not exceed 150 N on the horizontal part of the infeed stop control (including those provided on machines with an integrated feed conveyor) and 200 N on other parts along the length 0,75 x h as specified in 4.2.4.2.1. The force required shall be measured in a horizontal direction ±15°, or in the case of a pivoting infeed stop control, in the tangential direction of its movement.
EN 13525:2005+A1:2007 (E) 14 4.2.4.3.5 On actuation of the infeed stop control to position C, the time taken for infeed action to stop shall be as short as practicable and in all instances less than the minimum time for wood to travel from the nearest position of the infeed stop control to the reference plane. !Where the machine is equipped with an integrated chain conveyor the time taken for the infeed action to stop shall be less than two thirds of the minimum time for wood to travel from the nearest position of the infeed stop control to the reference plane." 4.2.4.3.6 When actuated to position C, the operator shall not be able to restart infeed action by solely returning the infeed stop control to any position in zone B. The operator shall only be able to restart infeed action by deliberate actuation of a separate control provided for this purpose. 4.2.4.3.7 In addition to meeting the requirements of 4.2.4.3.2 to 4.2.4.3.6, for type B machines the infeed stop control shall stop or reverse infeed action when pulled to its outermost position against the direction of feed, i.e. to position H. 4.2.4.3.8 Where the infeed stop control incorporates a control position for reversing the infeed action, the operation of that function shall be hold-to-run if it is behind the outermost edge of the infeed chute, i.e. at position E, see Figure 4 or Figure 5 as appropriate. Position E shall be as close as possible to the outermost chute edge of the infeed chute. 4.2.4.3.9 For type A machines, in respect of the infeed direction from the operator to the outermost edge, all positions of the infeed stop control in zone B, which allow or cause infeed action, shall be before any position which
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