1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 4254-12:2012Agricultural machinery SafetyPart 12: Rotary disc and drum mowers andflail mowers (ISO 4254-12:2012)BS EN ISO 4254-12:2012 BRITISH STANDARDNational foreword
2、This British Standard is the UK implementation of EN ISO4254-12:2012. It supersedes BS EN 745:1999+A1:2009 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AGE/32, Agricultural implements and trailers.A list of organizations represented on this committee
3、can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 57063 6ICS 65.060.50Compli
4、ance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS
5、O 4254-12 June 2012 ICS 65.060.50 Supersedes EN 745:1999+A1:2009English Version Agricultural machinery - Safety - Part 12: Rotary disc and drum mowers and flail mowers (ISO 4254-12:2012) Matriel agricole - Scurit - Partie 12: Faucheuses rotatives disques, faucheuses rotatives tambours et faucheuses-
6、broyeuses (ISO 4254-12:2012) Landmaschinen - Sicherheit - Teil 12: Kreiselmhwerke und Schlegelmher (ISO 4254-12:2012) This European Standard was approved by CEN on 23 June 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this E
7、uropean 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official vers
8、ions (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,
9、 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, Turkey and United Kingdom.
10、EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4254-12:2012: EBS EN
11、 ISO 4254-12:2012EN ISO 4254-12:2012 (E) 3 Foreword This document (EN ISO 4254-12:2012) has been prepared by Technical Committee ISO/TC 23 “Tractors and machinery for agriculture and forestry“ in collaboration with Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry”
12、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 December 2012, and conflicting national standards shall be withdrawn at the latest by December 2012. Atte
13、ntion 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 for identifying any or all such patent rights. This document supersedes EN 745:1999+A1:2009. It is intended to be used together with EN I
14、SO 4254-1:2009 “Agricultural machinery - Safety - Part 1: General requirements (ISO 4254-1:2008)“ and EN 15811:2009 “Agricultural machinery - Guards for moving parts of power transmission - Guard opening with tool (ISO/TS 28923:2007 modified)“. This second edition cancels and replaces the first edit
15、ion (EN 745:1999+A1:2009), which has been technically revised. The following major changes were introduced: requirements related to the scope and an enlargement to include rotary disc mowers, rotary drum mowers and flail mowers with a horizontal axis; requirements related to the protection against i
16、nadvertent contact with the cutting elements, with new and additional test criteria; requirements related to thrown object tests, with inclusion of two new parts to a revised standard (ISO 17101), have been introduced with increased criteria for rotary and flail mower machines. This document has bee
17、n 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/CENELE
18、C 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,
19、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4254-12:2012 has been approved by CEN as a EN ISO 4254-12:2012 without any modification. BS EN ISO 4254-12:2012EN ISO
20、4254-12:2012 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means
21、of conforming to Essential Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative cl
22、auses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements, except Essential Requirement(s) for all machines: 1.1.7, 1.2.1, 1.3.2, 1.3.8.1, 1.4.2.1 (2nd paragraph), 1.7.4.2 u), 3.3.1, and additionally for self
23、-propelled machines: 1.1.4, 1.1.8, 1.5.5, 1.5.9, 3.3.2, 3.3.3, 3.4.3, 3.6.3.1 of that Directive and associated EFTA regulations. WARNING Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. BS EN ISO 4254-12:2012ISO 4254-12:2012(E)
24、 ISO 2012 All rights reserved iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Normative references 2 3 Terms and definitions . 2 4 List of significant hazards 3 5 Safety requirements and/or protective measures 5 5.1 General . 5 5.2 Protection against inadvertent contact with the cutting el
25、ements 5 5.3 Protection against thrown objects that are not part of the machine . 13 5.4 Protection during handling and transport 13 5.5 Additional safety requirements for conditioning devices as an attachment or an integral part of the rotary disc or drum mower 13 5.6 Controls for adjustments 19 5.
26、7 Blades . 19 5.8 Overrunning clutch or freewheel device . 19 5.9 Implement hitch or carrier frame . 19 6 Verification of safety requirements and/or protective measures . 19 6.1 General . 19 6.2 Thrown object test . 19 6.3 Protective skirts test . 20 7 Information for use 20 7.1 Operators manual . 2
27、0 7.2 Marking . 21 Annex A (informative) Illustrations of mowers 22 Bibliography 28 BS EN ISO 4254-12:2012ISO 4254-12:2012(E) iv ISO 2012 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). T
28、he work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-go
29、vernmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
30、 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a v
31、ote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 4254-12 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agricultur
32、e and forestry, Subcommittee SC 7, Equipment for harvesting and conservation. ISO 4254 consists of the following parts, under the general title Agricultural machinery Safety: Part 1: General requirements1) Part 5: Power-driven soil-working machines Part 6: Sprayers and liquid fertilizer distributors
33、 Part 7: Combine harvesters, forage harvesters and cotton harvesters Part 8: Solid fertilizer distributors Part 9: Seed drills Part 10: Rotary tedders and rakes Part 11: Pick-up balers Part 12: Rotary disc and drum mowers and flail mowers Part 13: Large rotary mowers2)The following part is under pre
34、paration: Part 14: Mounted, semi-mounted and trailed bale wrappers Part 2, Anhydrous ammonia applicators, has been withdrawn; Part 3, Tractors, has been cancelled and is replaced by ISO 26322 (all parts), Tractors for agriculture and forestry Safety; and Part 4, Forestry winches, has been cancelled
35、and replaced by ISO 19472, Machinery for forestry Winches Dimensions, performance and safety. 1) For the purposes of global relevance, the requirements related to the guarding of moving parts for power transmission have been transferred and published as two separate Technical Specifications: ISO/TS
36、28923:2007 (Guard opening with tool) and ISO/TS 28924:2007 (Guard opening without tool). 2) To be published. BS EN ISO 4254-12:2012ISO 4254-12:2012(E) ISO 2012 All rights reserved vIntroduction The structure of safety standards in the field of machinery is as follows. a) Type-A standards (basic stan
37、dards) giving basic concepts, principles for design, and general aspects that can be applied to machinery. b) Type-B standards (generic safety standards) dealing with one or more safety aspect(s) or one or more type(s) of safeguards that can be used across a wide range of machinery: type-B1 standard
38、s on particular safety aspects (e.g. safety distances, surface temperature, noise); type-B2 standards on safeguards (e.g. two-hand controls, interlocking devices, pressure sensitive devices, guards); c) Type-C standards (machinery safety standards) dealing with detailed safety requirements for a par
39、ticular machine or group of machines. This document is a type-C standard as stated in ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the Scope of this part of ISO 4254. These hazards are specific to rotary disc mowers,
40、 rotary drum mowers, as used for forage crop harvesting in agriculture only, and flail mowers with horizontal axis for agriculture only, that are mounted, semi-mounted, trailed or self-propelled. Significant hazards that are common to all the agricultural machines (self-propelled ride-on, mounted, s
41、emi-mounted and trailed) are dealt with in ISO 4254-1. 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
42、designed and built according to the provisions of this type-C standard. BS EN ISO 4254-12:2012BS EN ISO 4254-12:2012INTERNATIONAL STANDARD ISO 4254-12:2012(E) ISO 2012 All rights reserved 1Agricultural machinery Safety Part 12: Rotary disc and drum mowers and flail mowers 1 Scope This part of ISO 42
43、54, where used with ISO 4254-1, specifies the safety requirements and their verification for the design and construction of rotary disc mowers, rotary drum mowers, as used for forage crop harvesting in agriculture only, and flail mowers with a horizontal axis for use in agriculture only, that are mo
44、unted, semi-mounted, trailed or self-propelled. It describes methods for the elimination or reduction of hazards arising from the intended use and reasonably foreseeable misuse of these machines by one person (the operator) in the course of normal operation and service. In addition, it specifies the
45、 type of information on safe working practices to be provided by the manufacturer. Flail mowers with a horizontal axis that can be opened at the rear only for maintenance reasons are included. This part of ISO 4254 is also applicable to mowers equipped with a conditioning device. This part of ISO 42
46、54 is applicable only to mowers intended to work at ground level, examples of which are given in A.1. When requirements of this part of ISO 4254 are different from those which are stated in ISO 4254-1, the requirements of this part of ISO 4254 take precedence over the requirements of ISO 4254-1 for
47、machines that have been designed and built according to the requirements of this part of ISO 4254. This part of ISO 4254, taken together with ISO 4254-1, deals with all the significant hazards (as listed in Table 1), hazardous situations and events (with the exception of noise and vibrations) releva
48、nt to rotary disc mowers, rotary drum mowers and flail mowers, when they are used as intended and under the conditions of misuse that are reasonably foreseeable by the manufacturer (see Clause 4). It is not applicable to (see examples in A.2) flail mowers that have the rear part which can be opened
49、for particular field use operations, mowers with an articulated arm, mowers with one or more vertical axes designed for mulching, pedestrian-controlled motor mowers, lawn mowers, inter-row mowing units, or machines specifically designed for highway and road maintenance. This part of ISO 4254 does not deal with environmental hazards, road safety and hazards related to moving parts for power transmission. It does not deal with hazards related to maintenance or repairs to be carried out by professional
