ISO INTERNATIONAL STANDARD 789-3 Third edition 2015-09-01 Agricultural tractors Test procedures - Part 3: Turning and clearance diameters Tracteurs agricoles - Méthodes d'essai - Partie 3: Diametres de braquage et de dégagement Reference number ISO 789-3:2015(E) ISO International Organization for Standardization see=Zhejang Institute of Standardization 5956617 @ISO2015 No reproduction or networking permitted without license from IHS IS0 789-3:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 · CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internatinai br DrganizationforStandardization Not for Resale, 2015/11/11 08:54:22 networking permited withoutlicense from IHS IS0 789-3:2015(E) Contents Page Foreword ..iv 1 Scope .1 2 Terms and definitions 3 Apparatus. 4 General requirements .5 4.1 Test area.... .5 4.2 Tractor test requirements 4.2.1 Tire and wheel equipment .5 4.2.2 Track (tread) setting .5 4.2.3 Other settings .5 5 Procedure .6 5.1 Right-hand turn, without brakes .6 5.1.1 Direct measurement .6 5.1.2 Alternate GPS method ..6 5.2 Left-hand turn, without brakes .6 5.3 Right-hand turn, with brakes . .7 5.4 Left-hand turn, with brakes. .1 6 Test report .10 Annex A (informative) Specimen test report ..11 Inteatinal oganzation @stS201.5 - All rights reserved iii icensee=Zhejiang Institute of Standardization 5956617 vided by IHS under I d without license from IHS Not for Resale, 2015/11/11 08:54:22