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1、BRITISH STANDARD BS EN 12733:2001 Agricultural and forestry machinery Pedestrian controlled motor mowers Safety The European Standard EN 12733:2001 has the status of a British Standard ICS 65.060.70 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun she
2、ffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12733:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2001 BSI 07
3、-2001 ISBN 0 580 37272 3 National foreword This British Standard is the official English language version of EN 12733:2001. The UK participation in its preparation was entrusted to Technical Committee AGE/20, Powered lawn and garden equipment, which has the responsibility to: A list of organizations
4、 represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using
5、 the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity f
6、rom legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary
7、of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 73 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldu
8、n sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12733 May 2001 ICS 65.060.50 English version Agricultural and forestry machinery - Pedestrian controlled motor mowers - Safety Matriel agricole et forestier - Motofa
9、ucheuses conducteur pied - Scurit Land- und forstwirtschaftliche Maschinen - Handgefhrte Motormher - Sicherheit This European Standard was approved by CEN on 21 January 2001. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Euro
10、pean 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English,
11、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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, D
12、enmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1
13、050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12733:2001 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12733:2001 Contents Foreword4 Introd
14、uction.4 1Scope 5 2Normative references 5 3Terms and definitions7 4List of hazards8 5Safety requirements and/or measures 8 5.1General8 5.2Engine starting and stopping devices.8 5.3Manual controls .9 5.4Marking of controls10 5.5Controls of the movement of the machine and of the blade(s).10 5.6Reverse
15、 gear.11 5.7Handlebars11 5.8Pressurized components11 5.9Liquid spillage11 5.10Exhaust system11 5.11Steering mechanism14 5.12Brakes.16 5.13Electrical installations.17 5.14Noise .17 5.15Vibration17 6Specific requirements .18 6.1Sickle bar mowers .18 6.2Grassland mowers.19 6.3Flail mowers .30 6.4Scrub
16、clearing machines 32 7Information for use 35 7.1Instruction handbook 35 7.2Marking .36 Annex A (normative) List of hazards.37 Annex B (normative) Noise test code for motor mowers - Engineering method (grade 2).42 B.0Scope 42 B.1A-weighted sound power level determination42 B.2A-weighted emission soun
17、d pressure level determination.44 B.3Requirements for test floor.44 B.4Installation, mounting and operating conditions .44 B.5Measurement uncertainties and declaration of noise emission values.45 B.6Information to be recorded and reported45 Annex C (normative) Vibration measurement of motor mowers46
18、 C.1Quantities to be measured46 C.2Instrumentation46 C.3Measurement direction and measurement location.46 C.4Test procedure.47 C.5Measurement procedure.48 C.6Determination of the measurement result.49 Annex D (normative) Foot probe test50 D.1Test equipment 50 D.2Test method50 D.3Test acceptance.50 L
19、icensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12733:2001 Annex E (normative) Material of protective skirts .52 E.1Tearing resistance test52 E.2Perforation resistance test .52 E.3Wear resistance test52 Annex F (normative) Corrugate
20、d fibreboard penetration tests on grassland mowers - Test enclosure wall panels (see 6.2.2.2.4.2) 53 F.1Purpose.53 F.2Test fixture53 F.3Fibreboard samples.53 F.4Procedure .53 F.5Acceptance criteria53 Annex G (normative) Target elevation areas55 G.1Lower elevation target.55 G.2Middle elevation target
21、55 G.3Top elevation target.55 G.4Operator target area 55 Annex H (normative) Test enclosure.56 H.1Base.56 H.2Target composition56 Annex I (normative) Thrown object test for flail mower59 I.1Principle59 I.2Test installation59 I.3Test procedure.62 I.4Test result.63 I.5Acceptance criteria63 Annex J (no
22、rmative) Thrown object test for scrub clearing machines .64 J.1Test equipment 64 J.2Test method64 J.3Data sheet - Thrown object test for scrub clearing machine66 Annex K (informative) Example of a material and construction fulfilling the requirements for an artificial surface .68 K.1Material .68 K.2
23、Construction.68 Annex L (informative) Examples of machines71 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives72 Bibliography73 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled C
24、opy, (c) BSI Page 4 EN 12733:2001 Foreword This European Standard 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 p
25、ublication of an identical text or by endorsement, at the latest by November 2001, and conflicting national standards shall be withdrawn at the latest by November 2001. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associ
26、ation, 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 standard. Annexes A, B, C, D, E, F, G, H, I and J are normative. Annexes K and L are informative. According to the CEN/CENELEC Internal Re
27、gulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and th
28、e United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 12733:2001 Introduction The extent to which hazards are covered is indicated in the scope of this standard. 1 Scope This standard specifies safety requirements and t
29、heir verification for design and construction of pedestrian controlled motor mowers with rotary or reciprocating cutting blades used in agricultural, forestry and landscaping to cut and/or mulch grass or similar plants or scrub and woody vegetation. For the purposes of this standard the following ty
30、pes of pedestrian controlled machines are considered to be motor mowers : ? flail mowers ; ? grassland mowers ; ? scrub clearing machines ; ? sickle bar mowers. This standard applies also to multipurpose machines when are used for cutting or mulching grass or scrub. This standard does not cover lawn
31、 mowers (see EN 836), engine driven brush cutters and grass trimmers (see EN ISO 11806) or other lawn maintenance equipment. This standard describes methods for the elimination or reduction of hazards arising from the use of motor mowers. Additionally, it specifies the type of information to be prov
32、ided by the manufacturer on safe working practices. Environmental aspects have not been considered in this standard. This standard applies primarily to machines which are manufactured after the date of issue of the standard. 2 Normative references This European Standard incorporates by dated or unda
33、ted 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 revisions of any of these publications apply to this European Standard only when
34、incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-1:1991, Safety of machinery Basic concepts, general principles for design Part 1 : Basic terminology, methodology. EN 292-2:1991+A1:1995, Safet
35、y of machinery Basic concepts, general principles for design Part 2 : Technical principles and specifications. EN 294:1992, Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs. EN 709:1997, Agricultural and forestry machinery Pedestrian controlled tractors w
36、ith mounted rotary cultivators, motor hoes, motor hoes with drive wheel(s) Safety. EN 836:1997, Garden equipment Powered lawnmowers Safety. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 12733:2001 CR 1030-1:1995:1995, Hand-arm vi
37、bration Guidelines for vibration hazards reduction Part 1 : Engineering methods by design of machinery. EN 1033:1995, Hand-arm vibration Laboratory measurement of vibration at the grip surface of hand-guided machinery General. EN ISO 354:1993, Acoustics Measurement of sound absorption in a reverbera
38、tion room (ISO 354:1985). EN 60651:1994, Sound level meters (IEC 60651:1993). EN 60804:1994, Integrating-averaging sound level meters (IEC 60804:1985 and A1:1989). EN ISO 3744:1995, Acoustics Determination of sound power levels of noise sources using sound pressure Engineering method in an essential
39、ly free field over a reflecting plane (ISO 3744:1994). ISO 3767-1:1991, 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, pow
40、ered lawn and garden equipment Symbols for operator controls and other displays Part 3: Symbols for powered lawn and garden equipment. EN ISO 4871:1996, Acoustics Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996). EN ISO 11201:1995, Acoustics Noise emit
41、ted 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 ma
42、chinery and equipment Part 1 : Planning (ISO/TR 11688-1:1995). EN ISO 11688-2:2000, Acoustics Recommended practice for the design of low-noise machinery and equipment Part 2 : Introduction to the physics of low-noise design. ISO 2758:1983, Paper Determination of bursting strength. ISO 3789-1:1982, T
43、ractors, machinery for agriculture and forestry, powered lawn and garden equipment Location and method of operation of operator controls Part 1 : Common controls. ISO 5718-1:1989, Harvesting equipment Flat blades for rotary mowers Specifications Part 1 : Type A flat blades. ISO 5718-2:1991, Harvesti
44、ng equipment Flat blades for rotary mowers Part 2 : Specifications for type B flat blades. ISO 11102-1:1997, Reciprocating internal combustion engines Handle starting equipment Part 1 : Safety requirements and tests. ISO 11102-2:1997, Reciprocating internal combustion engines Handle starting equipme
45、nt Part 2 : Method of testing the angle of disengagement. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:43:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 12733:2001 3 Terms and definitions For the purposes of this standard, the terms and definitions given in EN 292-1:1991 and EN
46、 292-2:1991/A1:1995 apply together with the following : 3.1 sickle bar mower motor mower which uses a power source to reciprocate a knife or knives to provide a shearing action with a stationary cutter bar or movable knife (see Figure L.1) NOTEAdapted from EN 836:1997. 3.2 rotary cutting blade cutti
47、ng blade on which one or more knives or several blades fixed on drums or discs rotate around a vertical or horizontal axis 3.3 grassland mower motor mower with rotary cutting blade(s) rotating about a vertical axis designed for cutting or mulching high grass, the cutting blade protective enclosure o
48、f which is not fully enclosing (see Figure L.2). The minimum cutting height is limited by design to 50 mm 3.4 flail mower grass-cutting machine with a multiplicity of free-swinging cutting elements that rotate about an axis parallel to the cutting plane and cut by impact EN 836:1997 3.5 scrub cleari
49、ng machine motor mower with rotary cutting blade(s) rotating about a vertical axis designed for cutting scrub and woody vegetation. There is no ground support in front of cutting blade(s). The front of the machine is supported at either side by skids, not wheels. At the front the cutting blade(s) enclosure may be open (see Figure L.3) 3.6 discharge opening opening in the protective enclosure of the cutting blade through which the cut material can be ejected 3.7 discharge chute extension
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