1、BRITISH STANDARDBS EN 474-2:2006+A1:2008Earth-moving machinery Safety Part 2: Requirements for tractor-dozersICS 53.100g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g
2、42g43g55g3g47g36g58BS EN 474-2:2006+A1:2008This British Standard waspublished under the authorityof the Standards Policy andStrategy Committee on 28 February 2007 BSI 2009ISBN 978 0 580 62366 0National forewordThis British Standard is the UK implementation of EN 474-2:2006+A1:2008.It supersedes BS E
3、N 474-2:2006, which is withdrawn. The UK participation in its preparation was entrusted by Technical CommitteeB/513, Construction equipment and plant and site safety, to SubcommitteeB/513/1, Earth moving machinery (International).A list of organizations represented on this committee can be obtained
4、onrequest to its secretary. This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity fromlegal obligations.Amendments/corrigenda issued since publicationDate Com
5、ments31 May 2009 Implementation of CEN amendment A1:2008The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .A1A1EURO
6、PEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 474-2:2006+A1 October 2008 ICS 53.100 Supersedes EN 474-2:2006 English Version Earth-moving machinery - Safety - Part 2: Requirements for tractor-dozers Engins de terrassement - Scurit - Partie 2: Prescriptions applicables aux bouteurs Erdbaumaschinen
7、 - Sicherheit - Teil 2: Anforderungen fr Planiermaschinen This European Standard was approved by CEN on 17 April 2006 and includes Amendment 1 approved by CEN on 18 August 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this E
8、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 Management Centre or to any CEN member. This European Standard exists in three official versions (En
9、glish, 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, Bulgar
10、ia, 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 STANDARDIZ
11、ATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 474-2:2006+A1:2008: EEN 474-2:2006+A1:2008 (E) 2 Conten
12、ts Page Foreword3 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 List of additional significant hazards 7 5 Safety requirements and/or measures 7 5.1 General7 5.2 Operators seat.7 5.3 Rear window(s) 7 5.4 Rear-mounted winch .8 6 Information for use 8 6.1 Warning sign
13、s 8 6.2 Operation manual 8 6.3 Machine marking8 Annex A (normative) List of additional significant hazards Tractor-dozers.9 Annex B (informative) Illustrations.10 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC 12 Annex ZB (i
14、nformative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“.13 Bibliography 14 Figures Figure B.1 Crawler tractor-dozer . 10 Figure B.2 Wheel tractor-dozer 10 Figure B.3 Crawler tractor-dozer with a plough. 11 Tables Table A.1 List of additiona
15、l significant hazards. 9 EN 474-2:2006+A1:2008 (E) 3 Foreword This document (EN 474-2:2006+A1:2008) has been prepared by Technical Committee CEN/TC 151 “Construction equipment and building material machines Safety”, the secretariat of which is held by DIN. This European Standard shall be given the s
16、tatus of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This European Standard supersedes !EN 474-2:2006“. This document includes Amendment 1, approv
17、ed by CEN on 2008-08-18. 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 Dir
18、ective. !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ For bibliographic references see EN 474-1:2006. EN 474 “Earth-moving machinery Safety“ comprises the following parts: Part 1: General requirements Part 2: Requirements for t
19、ractor-dozers Part 3: Requirements for loaders Part 4: Requirements for backhoe-loaders Part 5: Requirements for hydraulic excavators Part 6: Requirements for dumpers Part 7: Requirements for scrapers Part 8: Requirements for graders Part 9: Requirements for pipelayers Part 10: Requirements for tren
20、chers Part 11: Requirements for earth and landfill compactors Part 12: Requirements for cable excavators This European Standard is intended for use in combination with Part 1 of the series. EN 474-2:2006+A1:2008 (E) 4 According to the CEN/CENELEC Internal Regulations, the national standards organiza
21、tions 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, Roman
22、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 474-2:2006+A1:2008 (E) 5 Introduction This part of EN 474 is a type C standard as stated in EN ISO 12100-1:2003. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicate
23、d in the scope of this European Standard. 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 acco
24、rding to the provisions of this type C standard. EN 474-2:2006+A1:2008 (E) 6 1 Scope This part of EN 474 deals with all significant hazards, hazardous situations and events relevant to wheel and crawler tractor-dozers as defined in EN ISO 6165:2006, when they are used as intended and under condition
25、s of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This part also deals with rear-mounted winches for use on tractor-dozers. The requirements of this part are complementary to the common requirements formulated in EN 474-1:2006. This part does not repeat the requirement
26、s from EN 474-1:2006, but adds or replaces the requirements for application for tractor-dozers. This part specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards, hazardous situations and events during commissioning, operation and maintenance of
27、 tractor-dozers. This European Standard is not applicable to tractor-dozers manufactured before the date of publication of this European Standard by CEN. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, o
28、nly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 474-1:2006, Earth-moving machinery Safety Part 1: General requirements. EN ISO 3411:1999, Earth-moving machinery Human physical dimensions of operators and mini
29、mum operator space envelope (ISO 3411:1995). EN ISO 6165:2006, Earth-moving machinery Basic types Identification and terms and definitions (ISO 6165:2006). EN ISO 7096:2000, Earth-moving machinery Laboratory evaluation of operator seat vibration (ISO 7096:2000). EN ISO 12100-1:2003, Safety of machin
30、ery Basic concepts, general principles for design Part 1: Basic terminology, methodology (ISO 12100-1:2003). ISO 6016:1998, Earth-moving machinery Methods of measuring the masses of whole machines, their equipment and components. ISO 6405-2:1993, Earth-moving machinery Symbols for operator controls
31、and other displays Part 2: Specific symbols for machines, equipment and accessories. ISO 10968:2004, Earth-moving machinery Operators controls. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 474-1:2006, EN ISO 12100-1:2003 and the following
32、apply. NOTE 1 Terminology for tractor-dozers is specified in ISO 6747:1998 and is illustrated in Annex B of this European Standard. EN 474-2:2006+A1:2008 (E) 7 NOTE 2 Definitions used in EN and ISO standards referred to in this European Standard are also valid for this document. 3.1 tractor-dozer se
33、lf-propelled crawler or wheeled machine with equipment having either dozing attachment which cuts, moves, and grades material through forward motion of the machine or a mounted attachment used to exert a push or a pull force (see EN ISO 6165:2006) 3.2 attachment (working tool) component or assembly
34、of components, which can be mounted onto the base machine or equipment (see ISO 6746-1:2003 and ISO 6746-2:2003) for a specific use (see ISO 6016:1998) EXAMPLES Ripper, scarifiers, winch. 4 List of additional significant hazards See Annex A. NOTE Annex A (normative) contains all the significant haza
35、rds, hazardous situations and events, as far as they are dealt with in this European Standard, identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk. 5 Safety requirements and/or measures 5.1 General Tractor-dozers shall comp
36、ly with the requirements of EN 474-1:2006, as far as not modified or replaced by the requirements of this part. 5.2 Operators seat EN 474-1:2006, 5.4.1.4 applies with the following addition: The seat shall meet the input spectral according to EN ISO 7096:2000: class EM6 for crawler dozers less than
37、50 000 kg operating mass according to ISO 6016:1998; class EM5 for wheel dozers; for crawler dozer greater than or equal to 50 000 kg, see EN ISO 7096:2000. 5.3 Rear window(s) EN 474-1:2006, 5.3.2.7 and 5.3.2.9 apply for rear window(s) with the following provisions: arrangement to defrost the rear w
38、indow(s) shall be made; the rear window(s) shall be fitted with a motorised wiper(s) and washer. EN 474-2:2006+A1:2008 (E) 8 5.4 Rear-mounted winch 5.4.1 Mounting The means for securing a winch to the machine structure shall be designed to withstand a force of twice the maximum line-pull that can be
39、 exerted by the rope without permanent deformation. NOTE ISO 19472:2006 should be used as guidance for design of the mounting system. 5.4.2 Controls The winch controls shall be located at the operators station and shall fulfil the requirements stated in ISO 10968:2004. 5.4.3 Protection Where a rear-
40、mounted winch is fitted, provision shall be made to allow for protection. Tractor-dozers equipped with a rear winch shall be equipped with adequately sized protective screen(s) (minimum steel wire diameter 6 mm woven wire mesh with a maximum opening of 45 mm x 45 mm), or equivalent protection betwee
41、n the operator and the winch. NOTE ISO 8084:2003 should be used as guidance for design. The screen width and height shall cover at least: the rear window, for machines fitted with cab; the rear of the minimum space envelope as specified in EN ISO 3411:1999 (see Figure 5) for machines without a cab.
42、6 Information for use 6.1 Warning signs EN 474-1:2006, 7.2 applies with the addition of a specific warning sign using a symbol according to ISO 6405-2:1993 if a winch is fitted. 6.2 Operation manual EN 474-1:2006, 7.2 applies with the addition that the manufacturer shall provide instruction for oper
43、ation and safe use of winches, if fitted. 6.3 Machine marking EN 474-1:2006, 7.2 applies with the addition of the marking of the maximum pull force of the winch in Newton (N), if fitted. EN 474-2:2006+A1:2008 (E) 9 Annex A (normative) List of additional significant hazards Tractor-dozers The list of
44、 hazards in EN 474-1:2006, Annex A, applies with the following additions: Table A.1 List of additional significant hazards No.1)Hazard Relevant clauses of this European Standard Hazards, hazardous situations and hazardous events 1 Mechanical hazards due to: machine parts or working tools, e. g.: mas
45、s and stability, mechanical strength 5.4 1.1 Crushing hazard 5.4 5 Hazards generated by vibration 5.2 8 Hazards generated by neglecting ergonomic principles in machinery design as, e. g. hazards from: 8.7 Inadequate design, location or identification of manual controls 5.4.2 8.10 Inadequate guards a
46、nd protection devices 5.4.3 19 Linked to operators station on the machine 19.5 Insufficient visibility from the operators station(s) 5.4 24 Insufficient instructions for the operator (operation manual, signs, warnings, and markings) 6 Additional hazards, hazardous situations and hazardous events due
47、 to lifting 25 Mechanical hazards and hazardous events 25.2 From insufficient mechanical strength of parts 5.4.1 1) Number refers to Annex A of EN 474-1:2006. EN 474-2:2006+A1:2008 (E) 10 Annex B (informative) Illustrations Figure B.1 Crawler tractor-dozer Figure B.2 Wheel tractor-dozer EN 474-2:200
48、6+A1:2008 (E) 11 Figure B.3 Crawler tractor-dozer with a plough EN 474-2:2006+A1:2008 (E) 12 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC This European Standard has been prepared under a mandate given to CEN by the Europea
49、n Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive Machinery 98/37/EC, amended by 98/79/EC. Once this standard is cited in the Official Journal of the European Communities under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the re
