1、BRITISH STANDARD CONFIRMED AUGUST1993 BS6508:1984 ISO4004:1983 Recommendations for Track widths for agricultural tractors and machinery ISO title: Agricultural tractors and machinery Track widths UDC 631.372:629.114.2.012.57.071.1BS6508:1984 This British Standard, having been prepared under the dire
2、ctionof the Agricultural Machinery and Implements Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 31July1984 BSI 12-1999 The following BSI references relate to the work on this standard: Committee referenceAGE/6 Draft for comment82/73928DC ISBN 0 580
3、 13920 4 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Agricultural Machinery and Implements Standards Committee (AGE/-) to Technical Committee AGE/6 upon which the following bodies were represented: Agricultural and Allied Workers Natio
4、nal Trade Group Agricultural Engineers Association British Agricultural and Garden Machinery Association Ltd. County Surveyors Society Department of Trade and Industry (Mechanical and Electrical Engineering Division) Forestry Commission Health and Safety Executive Home Timber Merchants Association o
5、f Scotland Ministry of Agriculture, Fisheries and Food National Farmers Union National Institute of Agricultural Engineering Coopted member Amendments issued since publication Amd. No. Date of issue CommentsBS6508:1984 BSI 12-1999 i Contents Page Committees responsible Inside front cover National fo
6、reword ii 1 Scope and field of application 1 2 References 1 3 Definitions of track 1 4 Track widths 1 Publication referred to Inside back coverBS6508:1984 ii BSI 12-1999 National foreword This BritishStandard has been prepared under the direction of the Agricultural Machinery and Implements Standard
7、s Committee. It is identical with ISO4004“Agricultural tractors and machinery Track widths” which was developed by Technical CommitteeISO/TC23, Tractors and machinery for agriculture and forestry, and was published in1983 by the International Organization for Standardization (ISO). Terminology and c
8、onventions. The text of the International Standard has been approved as suitable for publication as a BritishStandard without deviation. Some terminology and certain conventions are not identical with those used in BritishStandards; attention is drawn especially to the following. Where the words “In
9、ternational Standard” appear, referring to this standard, they should be read as “BritishStandard”. 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
10、does not of itself confer immunity from legal obligations. Cross-reference International Standard Corresponding BritishStandard ISO789-1:1981 BS6347 Performance assessment of agricultural tractors Part1:1983 Methods for determination of available power (Identical) Summary of pages This document comp
11、rises a front cover, an inside front cover, pagesi andii, pages1 and2, an inside back cover and a 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.BS6508:1984 BSI 12-1999
12、1 1 Scope and field of application This International Standard lays down track widths for agricultural tractors and machinery, as a guideline for the manufacturers of these products. It applies to the principal driven axle(s) of agricultural tractors and to machinery, including self-propelled machin
13、ery, used in fields for row-crops. It does not apply to tractors of special types, to walking-tractors to single-axle motor-driven machines, to two-wheeled propulsion units, or to agricultural machinery of special types. 2 References ISO789-1, Agricultural tractors Test procedures Part1: Power tests
14、. 3 Definitions of track The following definitions are taken from ISO789-1. 3.1 track (tread) of wheeled tractor the distance at ground level between the median planes of the wheels on the same axle, with the tractor stationary and with the wheels in position for travelling in a straight line. The t
15、rack may be thus defined for both front and rear wheels. When there are twin wheels, the track is the distance between two planes each being the median plane of the pairs of wheels 3.2 track of tracklaying tractors the distance between the median planes of the tracks NOTEThe median plane of the whee
16、l or track assembly is equidistant from the two planes containing the peripheries of the rims or the track plates respectively at their outer edge. 4 Track widths The preferred track widths are the following: 1500 25mm 1800 25mm 2000 25mm NOTEIt is not envisaged that the tracks of all machines will
17、be capable of being set to all three widths.2 blankBS6508:1984 BSI 12-1999 Publication referred to See national foreword.BS6508:1984 ISO4004:1983 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. I
18、t presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim o
19、f BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:020899690
20、00. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Te
21、l:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, Europ
22、ean and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members o
23、f BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also hold
24、s the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording
25、 or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
