1、BRITISH STANDARD BS 6142:1981 Specification for Presentation of technical data on hydraulic systems of agricultural tractors and machinery UDC 631.372:629.114.2494:083.5BS6142:1981 This British Standard, having been prepared under the directionof the Agricultural Machinery and Implements Standards C
2、ommittee, was published under the authority ofthe Executive Board and comesinto effect on 31August1981 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference AGE/25 Draft for comment80/77194 DC ISBN 0 580 12240 9 Cooperating organizations The Agricultural M
3、achinery and Implements Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: Agricultural Engineers Association* Agricultural Machine Parts Export Association British Agricultural and Garden Machinery Association Limited* Brit
4、ish Lawn Mower Manufacturers Federation Department of Industry (Mechanical Engineering) Health and Safety Executive Institution of Agricultural Engineers Incorporated Ministry of Agriculture, Fisheries and Food* National Farmers Union* National Institute of Agricultural Engineering* Royal Welsh Agri
5、cultural Society The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted with the preparation of this British Standard: Association of Hydraulic Equipment Manufacturers Limited Amendments issued since pu
6、blication Amd. No. Date of issue CommentsBS6142:1981 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 Presentation of technical data 1 4 Direction of flow 1 Figure 1 Data plates 1BS6142:1981 ii BSI 11-1999 Foreword This British Standard
7、 has been prepared under the direction of the Agricultural Machinery and Implements Standards Committee. The purpose of this standard is to ensure that adequate data relating to the external hydraulic systems of agricultural tractors and machinery is properly presented on them to enable the user to
8、determine if the system on a particular tractor is compatible with that on a particular machine. 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 doe
9、s not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, page1and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the am
10、endment table on the inside front cover.BS6142:1981 BSI 11-1999 1 1 Scope This British Standard specifies the technical data, relating to the external hydraulic systems, that is to be provided on agricultural tractors and machinery and the method of presentation. 2 Definitions For the purposes of th
11、is British Standard, the following definitions apply. 2.1 hydraulic power outlet a coupling outlet, mounted on a tractor, which can provide a hydraulic power source for the operation of machinery 2.2 rated flow the operating flow rate, recommended by the manufacturer, for the hydraulic power outlet,
12、 when measured at a power outlet under rated pressure conditions. For a tractor, this applies at a manufacturers specified rated engine speed 2.3 rated pressure the pressure continuously available at a power outlet, under rated flow conditions 2.4 maximum pressure the highest pressure sustained by t
13、he tractor relief valve 2.5 minimum operating pressure the minimum pressure required for the satisfactory operation of the machine 2.6 exchange oil volume the quantity of oil that can be removed and returned to the tractor hydraulic system reservoir, when the tractor is standing on level ground, wit
14、hout affecting the hydraulic or other tractor function performance 3 Presentation of technical data 3.1 The data relating to the hydraulic system shall be provided on a plate which shall bear the details and be of the layout shown inFigure 1. 3.2 The plate shall be securely fixed to the tractor or m
15、achine adjacent to the hydraulic coupling. 3.3 The details on the plate shall be easily and permanently legible. 4 Direction of flow If the direction of flow is not reversible, this shall be stated. Rated pressure (bar) Rated flow (litre/min) Max. pressure (bar) Exchange oil volume (litre) a) On a t
16、ractor Min. operating pressure (bar) Min. flow rate (litre/min) Max. pressure (bar) Exchange oil volume (litre) b) On a machine NOTE1bar=10 5 N/m 2 =100kPa. Figure 1 Data platesBS 6142:1981 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body r
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