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1、International Standard ,NTERNAT,ONAL ORGAN,ZAT,ON FOR STANDARDIZATlON*MEYHAPOAHAR OPI-AHH3AUHR n0 CTAHAAPTH3AUHH.ORGANlSATlON INTERNATIONALE DE NORMALISATION Agricultural tractors and machinery - Track widths Tracteurs et matckiels agricoles - Largeurs de voie First edition - 1963-09-15 “ The Americ
2、an National Standards Institute (ANSI) is the primary source and official sales agent for IS0 standards in the United States ANSI was granted an exclusive license to distribute and sell IS0 standards, technical reports, drafts and other priced publications within the U S A Under this license agreeme
3、nt IS0 has granted to ANSI the right to reproduce IS0 standards and drafts within the territories of the United States” iii UDC 631.31/.37: 629.1.071 Ref. No. IS0 4004-1963 (E) g 2 Descriptors : agricultural machinery, tractors, track widths B iii - Price based on 1 page -,-,- Foreword IS0 (the inte
4、rnational Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of developing International Standards is carried out through IS0 technical committees. Every member body interested in a subject for which a technical committee has been a
5、uthorized has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before thei
6、r acceptance as International Standards by the IS0 Council. International Standard IS0 4004 was developed by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, and was circulated to the member bodies in March 1982. It has been approved by the member bodies of the fol
7、lowing countries : Australia B?!drum Brazil China Czechoslovakia Denmark Egypt, Arab Rep. of Finland France Germany, F. R. Iran Iraq Italy Korea, Dem. P. Rep. of Korea, Rep. of Mexico New Zealand Portugal Romania South Africa, Rep. of Spain Sweden Switzerland Turkey United Kingdom USA USSR The membe
8、r bodies of the following countries expressed disapproval of the document on technical grounds : Canada India Poland This International Standard cancels and replaces IS0 Technicai Report ISO/TR 4004-1975. 0 International Organization for Standardization, 1983 0 Printed in Switzerland -,-,- INTERNATI
9、ONAL STANDARD IS0 4004-1983 (E) Agricultural machinery - Track widths 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 agr
10、icultural tractors and to machinery, including self-propelled machinery, 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. same axle,
11、with the tractor stationary and with the wheels in position for travelling in a straight line. The track 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 track
12、laying tractors : The distance between the median planes of the tracks. NOTE - The median plane of the wheel or track assembly is equidis- tant from the two planes containing the peripheries of the rims or the track plates respectively at their outer edge 2 References IS0 783/l, Agricultural tractor
13、s - Test procedures - Part I : 4 Track widths Power tests. The preferred track widths are the following : 1500*25mm 3 Definitions of track 1 800 + 25 mm The following definitions are taken from IS0 789/l. 2 000 + 25 mm 3.1 track (tread) of wheeled tractor : The distance at ground level between the median planes of the wheels on the NOTE - It is not envisaged that the tracks of all machines will be capable of being set to all three widths. 1 -,-,- -,-,-