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1、BRITISH STANDARD BS EN 703:1996 Agricultural machinery Silage cutters Safety The European Standard EN 703:1995 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 703:1996 This British Standard, having
2、been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 April 1996 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference AGE/32 Draft for comment 92/74748 DC IS
3、BN 0 580 24950 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee AGE/32, Agricultural implements and trailers, upon which the following bodies were represented: Agricultural and Allied Workers National Trade Group Agricul
4、tural Engineers Association British Fluid Power Association Department of Transport Fertiliser Manufacturers Association Ltd. Health and Safety Executive Local Authority Organizations Ministry of Agriculture, Fisheries and Food National Farmers Union Silsoe College Cranfield Institute of Technology
5、Silsoe Research Institute UKF Fertilizers Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 703:1996 BSI 11-1999i Contents Page Committees responsibleInside front cover National fo
6、rewordii Foreword2 Text of EN 7033 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 703:1996 ii BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee AGE/32 and is the English language version of E
7、N 703:1995 Agricultural machinery Silage cutters Safety, published by the European Committee for Standardization (CEN). 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
8、 a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard BS EN 292 Safety of machinery Basic concepts, general principles for design EN 292-1:1991Part 1:1991 Basic terminology, methodology EN 292-2:1991Part
9、2:1991 Technical principles and specifications EN 294:1992BS EN 294:1992 Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 9 and a
10、back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STAND
11、ARD NORME EUROPENNE EUROPISCHE NORM EN 703 June 1995 ICS 65.040.20 Descriptors: Agricultural machinery, silage unloaders, safety of machine, accident prevention, safety requirements, specifications, design, inspection, hazards, technical notices, utilization, marking English version Agricultural mac
12、hinery Silage cutters Safety Matriel agricole Dsileuses ScuritLandmaschinen Siloentnahmegerte Sicherheit This European Standard was approved by CEN on 1995-04-04. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
13、d 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, Ge
14、rman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France,
15、 Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995
16、All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 703:1995 E Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 703:1995 BSI 11-1999 2 Foreword This Europe
17、an Standard has been prepared by the Technical Committee CEN/TC 144, Tractors and machinery for agriculture and forestry, of which the secretariat is held by AFNOR. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associatio
18、n, and supports essential requirements of EC Directive(s). 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 1995, and conflicting national standards shall be withdrawn at the latest by Dec
19、ember 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United
20、 Kingdom. Contents Page Foreword2 0Introduction3 1Scope3 2Normative references3 3Safety requirements and/or measures3 3.1General3 3.2Location of the manual controls3 3.3Distributor cylinder3 3.4Powered loading and cutting tools4 3.5Safeguarding of the cutting and loading tools when not in use4 3.6Em
21、ptying4 3.7Mixing device4 4Verification of safety requirements and/or measures5 5Information for use5 5.1Instruction handbook5 5.2Marking5 Annex A (normative) List of hazards6 Figure 14 Table A.1 List of hazards6 Table A.2 List of hazards due to mobility9 Licensed Copy: sheffieldun sheffieldun, na,
22、Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 703:1995 BSI 11-19993 0 Introduction The extent to which hazards are covered is indicated in the scope of this standard. These hazards are specific to silage cutters. The hazards that are common to all the agricultural and forestry ma
23、chines will be dealt with in a general standard currently in preparation. Until the publication of this general standard on common requirements, 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 when EN 292 does not gi
24、ve precise requirements. 1 Scope This standard specifies safety requirements and their verification for design and construction of different types of mounted, trailed or self-propelled silage cutters for one operator only, including mixing and distributor silage cutters. It describes methods for the
25、 elimination or reduction of risks which need specific requirements for silage cutters. It does not deal with general hazards particularly general hazards related to mobility, including those specific to self-propelled machines. These aspects will be dealt with in another standard produced by CEN/TC
26、 144 (see introduction). In addition, it specifies the type of information on safe working practices to be provided by the manufacturer. 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. NOTE 1Safety me
27、asures for the locking device of the raised parts of the machine and the safeguarding of the PTO shaft are dealt with in the “Common requirements” standard being prepared by CEN/TC 144. NOTE 2A future revision of the standard will include: additional requirements related to the safeguarding of the d
28、isharge chute; additional information on the procedure for clearing blockages. 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 in
29、corporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the cited publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
30、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: Basic terminology, methodology. EN 292-2:1991, Saf
31、ety 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. 3 Safety requirements and/or measures 3.1 General Unless otherwise specified in
32、this standard, the machine shall comply with the requirements of Tables 1, 3, 4 and 6 of EN 294:1992. 3.2 Location of the manual controls It shall not be possible for the operator to reach the manual controls when he is inside the compartment. Manual controls shall be located outside the hazardous z
33、ones of the machine. NOTEDetailed requirements for the location of the manual controls and in particular of the hold-to-run controls provided for in 3.3, 3.6, 3.7.1 and 3.7.2 will be added in the revision of the standard. 3.3 Distributor cylinder 3.3.1 General A distance a, according to 3.3.1.1, 3.3
34、.1.2 or 3.3.1.3, shall be provided from any point of the distributor cylinder to the cover (see Figure 1). 3.3.1.1 If the distance between the ground and the lower edge of the cover is h k 800 mm, a shall be a minimum of 550 mm. 3.3.1.2 If the distance h between the ground and the lower edge of the
35、cover is h 800 mm, a shall be a minimum of 850 mm. 3.3.1.3 When the distance a is less than the values given in 3.3.1.1 and 3.3.1.2, then a shall never be less than 230 mm and: the control of the cylinder shall be the hold-to-run control; or Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:
36、42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 703:1995 4 BSI 11-1999 NOTERequirements for the stopping time of the distributor cylinder will be added in the revision of this standard. the cover shall be fitted with a device capable of stopping the cylinder; this device shall be activated by a
37、maximum force of 150 N applied to the lower edge of the cover, in a plane perpendicular to the axis of the cylinder and in the direction of this axis. The cylinder shall stop rotating after the lower edge of the cover has moved a maximum distance of 75 mm. The cylinder shall not restart unless the m
38、anual control is operated intentionally. 3.3.2 Machines with loading arms For machines with loading arms, it shall only be possible to start the rotation of the cylinder when the loading arm is in the closed or parked position. 3.4 Powered loading and cutting tools When, for operating reasons, safet
39、y distances in accordance with 3.1 cannot be achieved in order to prevent contact with the tools (e.g. rotary cutter or knife), the controls shall be of the hold-to-run type. They shall be designed or shielded so that the tools cannot move without intentional action (e.g. a manual control requiring
40、two different actions to be operational). NOTERequirements for the stopping time of powered loading and cutting tools will be added in the revision of the standard. 3.5 Safeguarding of the cutting and loading tools when not in use Tools which can be hazardous when not in use shall be equipped with m
41、ovable or self-closing (rectractable) guards. 3.6 Emptying It shall be possible to completely empty the compartment without manual assistance. 3.7 Mixing device 3.7.1 Protection against contact with moving parts The machine shall be designed to maintain the safety distances according to 3.1 when the
42、 loading tools are in low position; if not, then a hold-to-run control shall be provided, designed or shielded so that the tools cannot move without intentional action. 3.7.2 Checking of the mixing When the upper edge of the machine is at more than 1,60 m from the ground, a means of access to the up
43、per part of the compartment shall be provided. Figure 1 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:42:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 703:1995 BSI 11-19995 When the checking is visual, the distance between the upper edge of the compartment and the upper step, or betwe
44、en the upper edge of the compartment and the ground, shall not be less than 1,20 m nor more than 1,60 m. When these distances are not met, the controls of the mixing tools shall be of the hold-to-run type. The controls shall be designed or shielded so that the tools cannot move without intentional a
45、ction. NOTERequirements on the stopping time of the moving parts of the mixing device will be added in the revision of the standard. 4 Verification of safety requirements and/or measures Dimensions, where given, shall be verified by measurements. Controls shall be verified by a function test and pos
46、itional measurements; guards by functional test. 5 Information for use 5.1 Instruction handbook Comprehensive instructions and information on all aspects of maintenance and the safe use of the machine shall be provided in the instruction handbook. It shall comply with 5.5 of EN 292-2:1991. In partic
47、ular the following points shall be emphasized: a) the machine shall be used by one person only. During work, nobody shall be nearby particularly in the ejection zone; b) the risk of standing near the disharge chute when the machine is operating; c) the need to use a PTO drive shaft equipped with a g
48、uard in good condition; d) for mounted silage cutters, the crushing hazard for the operator if standing between the tractor and the machine during work; e) for silage cutters fitted with an articulated or telescopic arm, the risk of unintentional contact with overhead power lines; f) the hazards inv
49、olved when climbing into the mixing compartment; g) the use of the machine to transport people, animals or objects is prohibited; h) to climb onto the loading elements or to use them as lifting equipment is prohibited; i) all intervention on the machine shall be carried out with the engine turned off; j) the tools (provided with the machine) to be used and the instructions to be followed for clearing blockages (including a reminder of the need to stop the engine); k) that before carrying out maintenance underneath rai