EN 709-1997 Agricultural and forestry machinery - Pedestrian controlled tractors with mounted rotary cultivators motor hoes motor hoes with drive wheel(s) - Saf.pdf

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2、es, motor hoes with drive wheel(s) - Safety Matriel agricole et forestier - Motoculteurs avec fraises portes, motobineuses et fraises roue(s) motrice(s) - Scurit Maschinen fr die Land- und Forstwirtschaft - Einachstraktoren mit angebauter Frse, Motorhacken, Triebradhacken - Sicherheit This European

3、Standard was approved by CEN on 4 March 1997 and includes Amendment 1 approved by CEN on 1 July 1999, Amendment 2 approved by CEN on 29 December 2008 and Amendment 4 approved by CEN on 24 October 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the cond

4、itions 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 thr

5、ee 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

6、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

7、COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 709:1997+A4:2009: EIncorporating

8、corrigendum December 2012EN 709:1997+A4:2009 (E) 2 Contents Page Foreword 4Introduction .51 Scope 52 Normative references 53 Definitions 64 List of hazards 65 Safety requirements and/or measures 75.1 General 75.2 Starting device .75.3 Manual controls .85.4 Identification of controls .95.5 Controls o

9、f the movement of the machine and of the tool . 105.6 Reverse gear . 125.7 Guards for moving parts 125.7.1 General . 125.7.2 Soil working tool . 125.8 Handlebars 165.8.1 General . 165.8.2 Motor hoes . 165.9 Exhaust system. 175.9.1 Protection against exhaust gas . 175.9.2 Protection against hot surfa

10、ces 185.10 Steering mechanisms . 195.10.1 General . 195.10.2 Measurement of the steering force . 195.11 Brakes for pedestrian controlled tractors 205.12 Electrical installation 225.13 Noise 225.13.1 General . 225.13.2 Operating conditions 225.14 Vibration 225.14.1 !Reduction by design and protective

11、 measures“ 225.14.2 Reduction by information 235.14.3 Vibration measurement 236 Information for use . 266.1 Instruction handbook . 266.2 Marking 28Annex A (normative) List of hazards 30Annex B (informative) Examples of machines 36Annex C (normative) !Measurement of vibration at the handlebars“ . 38C

12、.1 General . 38C.2 Quantities to be measured . 38C.3 Instrumentation . 38C.3.1 General . 38C.4 Fastening of the transducer 38C.5 Calibration . 39C.6 Measurement location and direction 39BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 3 C.7 Pre - test . 39C.8 Test conditions 39C.8.1 Machine set-up 39C.

13、8.2 Operating conditions 39C.8.3 Operator 40C.9 Measurement procedure . 40C.10 Test report 40Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC( . 42Annex ZB (informative) Relationship between this

14、 European Standard and the Essential Requirements of EU Directive 2006/42/EC( 43Bibliography 44BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 4 Foreword This document (EN 709:1997+A4:2009) has been prepared by Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry”, the s

15、ecretariat 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 June 2010, and conflicting national standards shall be withdrawn at the latest by December 2010. This document

16、 includes Amendment 1, approved by CEN on 1999-07-01, Amendment 2, approved by CEN on 2008-12-29 and Amendment 4, approved by CEN on 2009-10-24. This document supersedes EN 709:1997+A2:2009. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“, # $ and

17、(. This European Standard 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 Annexes ZA and ZB, which are integral parts of

18、this document.$ The Annex A is normative and contains the “List of hazards“. 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,

19、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. BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 5 Introduction The exten

20、t to which hazards are covered is indicated in the scope of this standard. In addition, machines shall comply as appropriate with EN 292 for hazards which are not dealt with and especially with Annex A of EN 292-2:1991/A1:1995 when EN 292 does not give precise requirements. 1 Scope This European Sta

21、ndard specifies safety requirements and testing for design and construction of, pedestrian controlled tractors with mounted rotary cultivators with the cultivator rotating axis horizontal and perpendicular to the direction of motion of the machine, motor hoes and motor hoes with drive wheel(s), all

22、as used in agriculture, forestry, landscaping and gardening (including amenity use). It describes methods for the elimination or reduction of risks arising from their use. In addition, it specifies the type of information to be provided by the manufacturer on safe working practices. This European St

23、andard does not cover the requirements to fulfil national road traffic regulations such as lights, steering and braking. Environmental aspects have not been considered in this standard. This European Standard applies primarily to machines which are manufactured after the date of issue of the standar

24、d. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or rev

25、isions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: B

26、asic terminology, methodology. EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications. EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifica

27、tions. EN 294:1992, Safety of machinery - Safety distances 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 value for hot surfaces. EN 1033:1995, Hand-arm vibration Laboratory

28、measurement of vibration at the grip surface of hand-guided machinery General. BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 6 prEN 1553:1996, Agricultural, forestry, landscaping and garden machinery Common requirements Safety. !CR 1030-1:1995, Hand-arm vibration Guidelines for vibration hazards red

29、uction Part 1: Engineering methods by design of machinery ISO 5805:1981, Mechanical vibration and shock affecting man - Vocabulary“ EN ISO 3767-1:1995, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment Symbols for operator controls and other displays Part 1: Common

30、symbols. EN ISO 3767-3:1996, 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. 3 Definitions For the purposes of this standard, the definitions given in EN 292-1:

31、1991 apply together with the following: 3.1 pedestrian controlled tractor agricultural self-propelled machine designed to be pedestrian controlled, capable of driving and/or pulling different working tools (see Figure B.1) 3.2 tool working element which can be adapted to a pedestrian controlled trac

32、tor 3.3 mounted rotary cultivator tool used for working the soil composed of a group of rotating elements which can be adapted to a pedestrian controlled tractor. 3.4 motor hoe agricultural self-propelled machine designed to be pedestrian controlled with or without support wheel(s), in such a way th

33、at its working elements act as hoeing tools to ensure propulsion (see figure B.2) 3.5 motor hoe with drive wheel(s) agricultural self-propelled machine designed to be pedestrian controlled and propelled by one or various wheels directly actuated from the engine and equipped with hoeing tools (see fi

34、gure B.3). 3.6 handlebar device equipped with grips enabling the machine to be manually controlled. 3.7 maximum operating engine speed highest engine speed obtainable with the tools engaged and with the machine supported such that the working tools are clear of any contact with the ground( 4 List of

35、 hazards The list of significant hazards dealt with in this standard is given in Annex A. Annex A also indicates the hazards which have not been dealt with. BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 7 5 Safety requirements and/or measures 5.1 General Unless otherwise specified in this standard,

36、the machine shall comply with the requirements of tables 1, 3, 4 and 6 of EN 294:1992. The requirements of prEN 1553 apply where relevant. 5.2 Starting device In addition to the hold-to-run controls (see 5.5) the machines shall be equipped with a device which prevents the engine starting if the star

37、t-up can induce rotation of the wheels or movement of the tool. The type of device which can be considered as fulfilling this requirement is one which, for example, by a mechanical linkage only allows the engine to start when the gear lever is in neutral and the tool is declutched. Such a device is

38、not necessary if, when starting the machine according to the instructions, the operator is not required to be in the danger zone. The danger zone is taken as the longitudinal band defined by the width of the machine and tool extending both forward and rearwards from it. If the machine is not provide

39、d with reverse gear, the danger zone to the rear of the machine is limited to a distance of 550 mm as measured from the rear extremity of the protective devices for moving parts (see figure 1). In the case of a machine provided with reverse gear, the danger zone to the rear includes the whole longit

40、udinal zone limited by the working width of the equipment. Should the operator have to lean on the machine to start the engine, the appropriate place shall be indicated or an identified support provided with a corresponding indication. With the exception of hand cranks (see ISO/DIS 11102-1 and ISO/D

41、IS 11102-2), starting devices shall be integral with the machine (e.g. recoil pull start). Loose belts, cables, etc. are not accepted. If starting is achieved by means of a hand crank, it shall be equipped with a device that disconnects the hand crank immediately when the engine starts and prevents

42、its connection when the engine is running or kick-back during starting. Dimensions in millimetres Figure 1 Limits of the danger zone when operating the starting device for machines with no reverse gear BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 8 5.3 Manual controls The height of the handlebar gr

43、ips in relation to the ground shall be adjustable. The following manually operated controls shall be within the “hand reach zone“ from the normal operator working position: clutch; brakes; gearbox (within the selected range); reversing device; steering system; engine working speed; hold-to-run contr

44、ol (see 5.5); tool clutch lever; stop control. The “hand reach zone“ (see figure 2) is defined as the truncated hemispherical volume of radius R = 800 mm with its centre at the midpoint (point B in figure 2) of a line joining the handlebar grip ends when the grips are set to a height of 800 mm above

45、 the ground, or set to the next available lowest height setting where this is not available, with its flat face on the vertical plane tangential to the handlebar grip ends and facing rearwards, and truncated below by a plane parallel to the ground positioned 450 mm above the ground. An engine stoppi

46、ng device shall be provided. The engine stopping device shall not depend on sustained manual pressure for its operation.( BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 9 Dimensions in millimetres Figure 2 “Hand reach zone“ volume 5.4 Identification of controls The controls used for driving the worki

47、ng tool and for locking the differential in their different positions shall be marked. The gear positions (including the neutral position) shall be durably and clearly marked and located within the field of vision of the operator. Detailed instructions on the operation of all controls shall be provi

48、ded in the instruction handbook. Symbols in accordance with EN ISO 3767-1:1995 and EN ISO 3767-3:1996 shall be used as appropriate. BS EN 709:1997+A4:2009EN 709:1997+A4:2009 (E) 10 5.5 Controls of the movement of the machine and of the tool The machine shall be equipped with a hold-to-run control(s)

49、.( All movements of the machine and of the working tool shall be stopped when the hold-to-run control(s) is (are) released. Releasing the hold-to-run control(s) shall not stop the engine. For electrical powered machines, this requirement does not apply. The force required to maintain the hold-to-run control in the engaged position shall not be greater than 27,5 N when the hold-to-run control is located