1、BRITISH STANDARDBS EN 12525:2000+A2:2010 Agricultural machinery Front loaders SafetyICS 65.060.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Nat
2、ional forewordThis British Standard is the UK implementation of EN 12525:2000+A2:2010. It supersedes BS EN 12525:2000 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags !“.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 CE
3、N amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrusted to Technical Committee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can be obtained on request to its secre
4、tary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 12525:2000+A2:2010This British Standard, havingbeen prepared under th
5、edirection of the SectorCommittee for Engineering,was published under theauthority of the StandardsCommittee and comes intoeffect on 15 April 2000 BSI 2010Amendments/corrigenda issued since publicationAmd. No. Date Comments 16770 29 December 2006Implementation of CEN amendment A1:200630 April 2010 I
6、mplementation of CEN amendment A2:2010ISBN 978 0 580 62053 9EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12525:2000+A2 March 2010 ICS 65.060.10 Supersedes EN 12525:2000English Version Agricultural machinery - Front loaders - Safety Matriel agricole - Chargeurs frontaux - Scurit Landmaschinen
7、 - Frontlader - Sicherheit This European Standard was approved by CEN on 22 November 1999 and includes Amendment 1 approved by CEN on 16 March 2006 and Amendment 2 approved by CEN on 24 January 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
8、ions 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 three
9、 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 Au
10、stria, 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 and United Kingdom. EU
11、ROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12525:2000+A2:2010: EEN 12
12、525:2000+A2:2010 (E) 2 Contents Page Foreword 4Introduction .51 Scope 52 Normative references 53 Definitions 64 Safety requirements and/or measures 74.1 Mounting of the front loader on a tractor 74.1.1 Intended use .74.1.2 Stability of the combined tractor/front loader 74.1.3 Frame for mounting the
13、front loader on a tractor 84.2 Dismounting and storing of the lifting arms .84.2.1 Supporting devices84.2.2 Stability .84.3 Mounting of attachments on the lifting arms 84.3.1 Intended use .84.3.2 Device for mounting attachments 84.3.3 Device for locking attachments 84.4 Hydraulic circuit .94.4.1 Hyd
14、raulic power and pressures .94.4.2 Pressure hoses near operators seat .94.4.3 Connections .94.4.4 !Protection against unintended lowering“ 94.5 Manual controls 104.5.1 Design and arrangement 104.6 Service and maintenance operations . 115 Verification of safety requirements and/or measures . 126 Info
15、rmation for the assembler . 127 Information for use . 127.1 Instruction handbook . 127.1.1 General . 127.1.2 Manual controls 127.1.3 Hydraulic circuit 137.1.4 !Mounting of attachments“ 137.1.5 Use of the front loader . 137.1.6 Dismounting and storing of the lifting arms 147.2 Marking 14Annex A (norm
16、ative) List of hazards 16Annex B (informative) Stability of the tractor/front loader combination 21B.1 Effects on the stability . 21B.2 Means to ensure stability . 21B.2.1 Fitting of a counterweight 21B.2.2 Use without counterweight 22Annex C (informative) Locking device . 23Annex D (informative) Fl
17、oat position 24BS EN 12525:2000+A2:2010EN 12525:2000+A2:2010 (E) 3 Annex E (normative) !Test method and acceptance criteria for means to avoid unintended lowering 25E.1 Terms and definitions . 25E.2 Test procedure . 25E.3 Acceptance criteria . 25Annex ZA (informative) #Relationship between this Euro
18、pean Standard and the Essential Requirements of EU Directive 98/37/EC$ 26Annex ZB (informative) #Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC$ 27Bibliography 28BS EN 12525:2000+A2:2010EN 12525:2000+A2:2010 (E) 4 Foreword This document (EN 1252
19、5:2000+A2:2010) 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 publication of an identical text or by endorsement,
20、 at the latest by September 2010, and conflicting national standards shall be withdrawn at the latest by September 2010. This document includes Amendment 1, approved by CEN on 2006-03-16 and Amendment 2, approved by CEN on 2010-01-24. This document supersedes EN 12525:2000. The start and finish of t
21、ext introduced or altered by amendment is indicated in the text by tags ! “ and # $. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. T
22、his European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). #For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
23、 document.$ #The following changes were introduced compared to the previous version: technical changes of Clauses 1, 4.5.1, 7.1.5 and Table A.2; minor changes of Clauses 2, 3 and 4, 7.2 and Table A.1; editorial modifications of Annex ZA; addition of Annex ZB.$ According to the CEN/CENELEC Internal R
24、egulations, 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, Luxembourg,
25、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. #deleted text$ BS EN 12525:2000+A2:2010EN 12525:2000+A2:2010 (E) 5 Introduction The extent to which hazards are covered is indicated in the scope of this standard. #This documen
26、t is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are covered are indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or
27、 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 according to the provisions of this type C standard.$ 1 Scope This #European Standard$ specifies safety requirements and their verification
28、for the design and construction of front loaders designed to be mounted on agricultural and forestry wheeled tractors (as defined in the #Directive 2003/37/EC$). Hazards related to mounting the lifting arms to the frame mounted on the tractor, and also hazards related to devices for mounting attachm
29、ents to the arm are covered. Hazards related to mounting the frame to the tractor (carried out by the dealer of the loader and/or of the tractor), the mounted attachments and hazards due to loss of mechanical strength of the structure are excluded. !deleted text“ Hazards related to the transport of
30、passengers are not covered. This #European Standard$ describes methods and requirements for the elimination or reduction of risks which need specific requirements to front loaders. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer. The lis
31、t 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. #This European Standard is not applicable to front loaders which are manufactured before the date of its publication as EN.$ 2 Normative references !The follow
32、ing referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.“ #deleted text$ EN 982, Safety of machinery Safety
33、 requirements for fluid power systems and their components Hydraulics BS EN 12525:2000+A2:2010EN 12525:2000+A2:2010 (E) 6 #EN ISO 12100-1:2003, Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2:2003, Safety of m
34、achinery Basic concepts, general principles for design Part 2: Technical principles (ISO 12100-2:2003)$ ISO 8935, Tractors for agriculture and forestry Mountings and apertures for external equipment controls ISO 10448:1994, Agricultural tractors Hydraulic pressure for implements ISO 11684:1995, Trac
35、tors, machinery for agriculture and forestry, powered lawn and garden equipment- Safety signs and hazard pictorials General principles 3 Definitions #For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 apply.$ 3.1 front loader detachable unit consisting of lifti
36、ng arms and fastening devices designed to be mounted on a frame on the front of a tractor and equipped with devices for mounting various allowable attachments NOTE See figure 1. 3.2 allowable attachment working attachment, approved by the front loader manufacturer for mounting and operating with spe
37、cified front loaders (and tractors) 3.3 supporting device device for supporting the lifting arms in a stable position when it is dismounted from the tractor NOTE For example, for storage, see figure 1. 3.4 manual controls of the front loader control equipment supplied with the front loader to enable
38、 the loader and attachments to be operated from the driving position of the tractor BS EN 12525:2000+A2:2010EN 12525:2000+A2:2010 (E) 7 Key 1 - attachment 2 - device for mounting attachments 3 - lifting arm 4 - supporting devices 5 - fastening devices 6 - frame mounted on the tractor Figure 1 Front
39、loader 4 Safety requirements and/or measures #Front loaders shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of EN ISO 12100 for hazards relevant but not significant, which are not dealt with b
40、y this document.$ 4.1 Mounting of the front loader on a tractor 4.1.1 Intended use The front loader manufacturer shall state which tractors are suitable for the mounting and use with the front loader taking into account the specific technical characteristics of the tractor and the intended use of th
41、e combined unit. 4.1.2 Stability of the combined tractor/front loader The stability of the combined tractor/front loader is dependent on the range and capacity of the attachment, the arrangement of the front loader on the tractor together with the type of tractor. Improvements in stability can be ac
42、hieved by fitting a counterweight or ballasting the rear wheels and observing limits to driving and operating conditions. For further guidance see Annex B. BS EN 12525:2000+A2:2010EN 12525:2000+A2:2010 (E) 8 4.1.3 Frame for mounting the front loader on a tractor The front loader manufacturer shall d
43、esign the mounting frame and its fastening elements so that the maximum loads expected in accordance with the intended usage are transferred safely to the structure of the tractor. 4.2 Dismounting and storing of the lifting arms 4.2.1 Supporting devices Devices shall be provided to support the dismo
44、unted lifting arms when stored on the ground. They shall: be so designed that the strength of the structure is able to hold the weight of the lifting arms and of the heaviest allowable attachment under the conditions specified in 4.2.2; have a supporting surface area which exerts a ground pressure o
45、f not more than 400 kPa. This requirement shall be met with any allowable attachment in the lowered position; have a locking device to prevent inadvertent lowering and creation of drawing-in or trapping hazards at the supporting devices themselves; be available at any time when dismounting the lifti
46、ng arms. They shall be attached to the lifting arms or stored separately from the front loader somewhere on the vehicle. The supporting devices shall be so designed that they can be fastened and have their height adjusted by the operator standing beside the lifting arms or sitting on the seat of the
47、 tractor. 4.2.2 Stability When the lifting arms are standing dismounted on horizontal, hard ground in a position recommended in the instruction book, they shall be capable of resisting a force of 400 N applied in any direction, without tilting. 4.3 Mounting of attachments on the lifting arms 4.3.1 I
48、ntended use The front loader manufacturer shall specify the type and capacity of the allowable attachments that can be fitted and safely operated. 4.3.2 Device for mounting attachments The device shall be so designed that mounting and dismounting of an attachment can be done by the driver alone. 4.3
49、.3 Device for locking attachments The device for locking attachments shall have a positive engagement and retention system to secure the attachment onto the lifting arms so that the attachment is held securely under any operating conditions (see Annex C for an example). It shall not be possible for an attachment to become unintentionally disengaged by use or by failure of the securing system. This requirement can be met by use of a locking
