DIN EN ISO 11806-2-2012 Agricultural and forestry machinery - Safety requirements and testing for portable hand-held powered brush-cutters and grass-trimmers - Part 2 Machines for .pdf

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1、April 2012 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 6

2、5.060.50!$6*“1881907www.din.deDDIN EN ISO 11806-2Agricultural and forestry machinery Safety requirements and testing for portable, hand-held, poweredbrush-cutters and grass-trimmers Part 2: Machines for use with back-pack power unit (ISO 11806-2:2011)English translation of DIN EN ISO 11806-2:2012-04

3、Land- und forstwirtschaftliche Maschinen Sicherheitstechnische Anforderungen und Prfung fr tragbare handgehaltenemotorbetriebene Freischneider und Grastrimmer Teil 2: Gerte fr den Gebrauch mit rckentragbarer Antriebseinheit (ISO 11806-2:2011)Englische bersetzung von DIN EN ISO 11806-2:2012-04Matriel

4、 agricole et forestier Exigences de scurit et essais pour dbroussailleuses et coupe-herbe portatifs moteur Partie 2: Machines pour utilisation avec source motrice porte dos (ISO 11806-2:2011)Traduction anglaise de DIN EN ISO 11806-2:2012-04www.beuth.deDocument comprises pagesIn case of doubt, the Ge

5、rman-language original shall be considered authoritative.1303.12 DIN EN ISO 11806-2:2012-04 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 1 April 2012. National foreword This standard includes safety requirements. This standard has been pr

6、epared by Technical Committee ISO/TC 23 “Tractors and machinery for agriculture and forestry”, Subcommittee SC 17 “Manually portable forest machinery” (Secretariat: SIS, Sweden) in collaboration with Technical Committee 144 “Tractors and machinery for agriculture and forestry” (Secretariat: AFNOR, F

7、rance), Working Group WG 6 “Manually portable forestry machinery”. The responsible German body involved in its preparation was the Normenausschuss Eisen-, Blech- und Metallwaren (Hardware, Tinware and Metal Products Standards Committee), Working Committee NA 020-00-12 AA Tragbare Forstmaschinen. Thi

8、s standard contains specifications meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 2006/42/EC relating to powered brush-cutters and grass-trimmers with back-pack power unit which are either first placed on the market or commissioned within the EEA, and s

9、erves to facilitate proof of compliance with the essential requirements of that directive. Once this standard is cited in the Official Journal of the European Union, it is deemed a “harmonized” standard and thus, a manufacturer applying this standard may assume compliance with the requirements of th

10、e Machinery Directive (“presumption of conformity”). EN ISO 11806, “Agricultural and forestry machinery Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers”, consists of the following parts: Part 1: Machines fitted with an integral combustion engine Part

11、 2: Machines for use with back-pack power unit The ISO Standards referred to in Clause 2 of this standard have been published as the corresponding DIN EN ISO Standards. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11806-2 December 2011 ICS 65.060.80 English Version Agricultural and fores

12、try machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 2: Machines for use with back-pack power unit (ISO 11806-2:2011) Matriel agricole et forestier - Exigences de scurit et essais pour dbroussailleuses et coupe-herbe portatifs moteu

13、r - Partie 2: Machines pour utilisation avec source motrice porte dos (ISO 11806-2:2011) Land- und forstwirtschaftliche Maschinen - Sicherheitstechnische Anforderungen und Prfung fr tragbare handgehaltene motorbetriebene Freischneider und Grastrimmer - Teil 2: Gerte fr den Gebrauch mit rckentragbare

14、r Antriebseinheit (ISO 11806-2:2011) This European Standard was approved by CEN on 30 November 2011. 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

15、-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 trans

16、lation 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, Finlan

17、d, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOM

18、ITEE FR NORMUNG 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 ISO 11806-2:2011: EDIN EN ISO 11806-2:2012-04 EN ISO 11806-2:2011 (E) 2 Page Foreword 3 Introduction .4 1 Sco

19、pe 5 2 Normative references 5 3 Terms and definitions .6 4 Safety requirements and/or protective measures 7 4.1 General 7 4.2 Distance to cutting attachment 7 4.3 Handgrip on back-pack power unit 8 4.4 Harness for back-pack power unit .8 4.5 Hydraulic and pneumatic pipes and hoses .8 5 Information f

20、or use 9 Annex A (informative) List of significant hazards 10 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC 11 Foreword This document (EN ISO 11806-2:2011) has been prepared by Technical Committee ISO/TC 23 Tractors and m

21、achinery for agriculture and forestry” in collaboration with 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

22、text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible

23、 for identifying any or all such patent rights. 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. For relationship with EU Directive, see informative Annex ZA, which is

24、 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, German

25、y, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11806-2:2011 has been approved by CEN as a EN ISO 11806-2:2011

26、without any modification. “ DIN EN ISO 11806-2:2012-04 EN ISO 11806-2:2011 (E) 3 IntroductionThis document is a type-C standard as stated in ISO 12100.The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are covered are indicated in the scope of this docu

27、ment.When requirements of this type-C standard are different from those which are stated in type-A or type-B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been designed and built according to the requirements o

28、f this type-C standard.DIN EN ISO 11806-2:2012-04 EN ISO 11806-2:2011 (E) 4 1 ScopeThis part of ISO 11806 gives safety requirements and measures for their verification for the design and construction of portable, hand-held, powered brush-cutters and grass-trimmers with a back-pack-mounted combustion

29、 engine power source and mechanical power transmission between the power source and the cutting attachment. Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specifie

30、d.This part of ISO 11806, taken together with the relevant clauses of ISO 11806-1 (see 4.1), deals with all significant hazards, hazardous situations and hazardous events, with the exception of whole-body vibration from the back-pack power unit, relevant to these machines when they are used as inten

31、ded and under conditions of misuse which are reasonably foreseeable by the manufacturer.NOTE 1 A standardized test procedure for measuring whole-body vibration from the back-pack power unit is presently not available.NOTE 2 See Annex A, together with Annex A in ISO 11806-1:2011, for a list of signif

32、icant hazards.This part of ISO 11806 is applicable to portable, hand-held, powered brush-cutters and grass-trimmers manufactured after its date of publication.This part of ISO 11806 is not applicable to machines equipped with metallic cutting attachments consisting of more than one piece, e.g. pivot

33、ing chains or flail blades.2 Normative referencesThe 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.I

34、SO 4413:2010, Hydraulic fluid power General rules and safety requirements for systems and their componentsISO 4414:2010, Pneumatic fluid power General rules and safety requirements for systems and their componentsISO 11806-1: 2011, Agricultural and forestry machinery Safety requirements and testing

35、for portable, hand-held, powered brush-cutters and grass-trimmers Part 1: Machines fitted with an integral combustion engineISO 12100:2010, Safety of machinery General principles for design Risk assessment and risk reductionISO 13857:2008, Safety of machinery Safety distances to prevent hazard zones

36、 being reached by upper and lower limbsDIN EN ISO 11806-2:2012-04 EN ISO 11806-2:2011 (E) 5 3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 11806-1 and the following apply.NOTE Figure 1 provides an example of a brush-cutter with a back-pack power sour

37、ce falling within the scope of this part of ISO 11806.3.1applianceassembly of drive shaft tube, cutting attachment with its guard and handles3.2machinecomplete brush-cutter (or grass-trimmer), including back-pack power unit and appliance12387654Key1 harness2 back-pack power unit3 barrier4 blade5 cut

38、ting-attachment guard6 drive-shaft tube7 front handle8 rear handleFigure 1 Example of a brush-cutter with back-pack power unitDIN EN ISO 11806-2:2012-04 EN ISO 11806-2:2011 (E) 6 4 Safety requirements and/or protective measures4.1 GeneralMachines shall comply with the safety requirements and/or prot

39、ective measures of this clause. In addition, the machine shall be designed according to the principles of ISO 12100 for relevant but not significant hazards which are not dealt with by this part of ISO 11806.Machines shall comply with ISO 11806-1:2011, Clause 4, except for 4.5.The safe operation of

40、a brush-cutter and a grass-trimmer also depends on the safe environment associated with the use of personal protective equipment (PPE), such as gloves, slip-resistance footwear, and leg, eye and hearing protective equipment, as well as safe working procedures (see ISO 11806-1:2011, 5.1).If a grass-t

41、rimmer can be converted to a brush-cutter then the converted machine shall comply with requirements for a brush-cutter and vice versa.Except where otherwise specified in this part of ISO 11806, the safety distances specified in ISO 13857:2008, 4.2.4.1 and 4.2.4.3, shall be met.4.2 Distance to cuttin

42、g attachment4.2.1 RequirementsMachines with front and rear handles shall have a minimum straight-line distance of 1 200 mm from the mid-point of the rear handle to the nearest unguarded point of the cutting attachment (point A in Figure 2). Point A is the intersection between the plane perpendicular

43、 to the cutting path and the side-edge of the cutting-attachment guard.This minimum distance shall apply to all recommended cutting attachments.4.2.2 VerificationThe distance shall be verified by measurement.Dimensions in millimetresA521 3 46 1 200Key1 cutting attachment2 guard3 centre at rear of fr

44、ont handle4 handle grip5 flexible power transmission6 barrierFigure 2 Example of an appliance with a saw-blade cutting attachment and front and rear handlesDIN EN ISO 11806-2:2012-04 EN ISO 11806-2:2011 (E) 7 4.3 Handgrip on back-pack power unit4.3.1 RequirementA handgrip shall be available which ma

45、y be a part of the frame and which shall allow an operator to grasp the back-pack power unit for handling and transport.The handgrip shall be designed such that it can be fully gripped by an operator when wearing gloves, it provides the necessary sureness of grip by its shaping and surface, its leng

46、th is at least 100 mm and where, for a bail or closed hand-grip, this length is straight or curved at a radius greater than 100 mm together with any blend radius, but not more than 10 mm at one or both ends of the gripping surface.4.3.2 VerificationThe handgrip design shall be verified by inspection

47、, measurement and functional testing.4.4 Harness for back-pack power unit4.4.1 RequirementsA double shoulder harness shall be provided to carry the back-pack power unit. It shall be adjustable to fit the size of the operator.The harness shall be equipped with a quick-release mechanism positioned eit

48、her at the connection between the power source and the harness or between the harness and the operator. Either the design of the harness or the use of the quick-release mechanism shall enable the back-pack power unit to be released quickly from the operator in the event of an emergency.If a quick release mechanism is provided it shall be possible to open it under load to release the back-pack power unit using only one hand.4.4.2 VerificationThe harness, its functionality and its adjustment shall