ISO-11001-1-1993.pdf

INTERNATIONAL STANDARD IS0 11001-1 First edition 1993-I O-01 Agricultural wheeled tractors and implements - Three-point hitch couplers - Part 1: U-frame coupler Tracteurs agricoles 2 roues et instruments - Coupleurs rapides trois points - Partie 1: Coupleur par cadre en U Reference number IS0 11001-1 1993(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11001-1:1993(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established 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. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote International Standard IS0 11001-l was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Sub- Committee SC 4, Tractors. IS0 11001 consists of the following parts, under the general title Agricul- tural wheeled tractors and implements - Three-point hitch couplers: - Part 1: U-frame coupler - Part 2: A-frame coupler - Part 3: Link coupler - Part 4: Bar coupler Q IS0 1993 All rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organization for Standardization Case Postale 56 ? CH-1211 Geneve 20 ? Switzerland Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 11001-1:1993(E) Agricultural wheeled tractors and implements - Three-point hitch couplers - Part 1: U-frame coupler 1 Scope This part of IS0 11001 specifies the essential dimen- sions for the attachment of three-point hitch im- plements to agricultural wheeled tractors equipped with a three-point free link hitch according to IS0 730-1, IS0 730-3 or IS0 8759-2, and a U-frame hitch coupler. NOTE 1 In general, the dimensions associated with the tractor and the implement for use with hitch couplers are the same as those for the three-point linkage specified in IS0 730-1, IS0 730-3 or IS0 8759-2, and those for the clearance zone specified in IS0 23321) The three-point hitch coupler systems constitute a special method of implement mounting. The hitch couplers are an additional component located be- tween the three-point linkage and the implement, making it possible to hitch and unhitch from the op- erator s seat. Due to the special construction and function of hitch couplers, it may be necessary to vary the length of the links indicated in the referenced standards This part of IS0 11001 applies to categories 2, 3 and 4 of agricultural wheeled tractors as defined in IS0 730-I and IS0 730-3 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 11001. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 11001 are encouraged to investi- gate the possibility of applying the most recent edi- tions of the standards indicated below Members of IEC and IS0 maintain registers of currently valid International Standards IS0 730-l :I 990, Agricultural wheeled tractors - Rear-mounted three-point linkage - Part 1: Catego- ries I, 2 and 3. IS0 730-3: 1982, Agricultural wheeled tractors - Three-point linkage - Part 3. Category 4 IS0 8759-2.1985, Agricultural wheeled tractors - Front-mounted linkage and power take-off - Part 2. Front linkage. 3 Principle of frame coupler system A frame coupler system is a one-phase implement coupler where the three-point linkage of the tractor (see IS0 730-1, IS0 730-3 or IS0 8759-2) is fitted with a U-frame and the implement has the provisions to be mounted to the frame. Hitching and unhitching can be operated from the tractor operator s seat 4 Coupler dimensions Coupler dimensions shall comply with figure 1 and ta- ble 1. 4.1 The upper hook offset (dimension bs) shall be not more than 15,75 mm greater or 6,35 mm less than the lower socket offset (dimension b,). 1) IS0 2332 1983, Agricultural tractors and machinery - Connections - Clearance zone for the three-point /Inkage of im- plements 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11001-1:1993(E) 4.2 The implement shall provide clearance when at- tached to the coupler to permit lowering all elements of the coupler 120,9 mm minimum for categories 2 and 3, and 146 mm minimum for category 4, to en- sure satisfactory attachment and detachment of the implement from the coupler. 4.3 The upper hook of the quick coupler shall be at the centre of the lower sockets within 3 mm. 4.4 The lower implement attaching point on the quick-attaching coupler shall be located in the vertical position such that the lift range, power range and levelling adjustment, as specified in IS0 730-l and IS0 730-3, are fulfilled. 4.5 Implement components, other than the hitch pins, that are in alignment with the lower socket width (dimension 6,) shall not extend forward of the centreline of the lower socket for a distance of 203 mm above the lower socket Components above this height, extending laterally more than 381 mm from the coupler centreline, shall not extend more than 25 mm forward of the vertical centreline through the upper hook opening. 4.6 The lower socket width (6,) shall be maintained within the area defined by dimensions 6, b, h, and b9. 4.7 The lower link to coupler pins may be recessed to provide design freedom to obtain structural integ- rity in the coupler frame, resulting in a common di- mension for ls and I, and Z4 and I, respectively A-A Figure 1 - Coupler dimensions Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11001-1:1993(E) Table 1 - Coupler dimensions nimnnsinns in millimntres l,-,.-.“” .I. .,I,.,-.,- Category 2 Category 3 Category 4 Dimensions Designation min max min max min max 11 Lower socket inside span 828,56 834,13 969.78 975,36 1 171 1 174 4 Lower socket width 64,26 66,55 64,26 66.55 87 89 4 Lower socket offset - 127 - 127 - 165 d Lower socket diameter 38,lO 38,61 38,lO 38,61 52,0 52,5 bz Lower socket overhang - 88,9 - 88,9 - 89 4 Lower socket depth - 88,9 - 88.9 - 127 62 Upper hook width - 31.75 - 31.75 - 45 b3 Upper hook overhang - 73,15 - 73,15 - 82 4 Upper hook opening 32,51 33.27 32,51 33,27 45,7 46,5 b, Upper hook offset - 127 - 127 - 165 h2 Upper hook depth - 91,44 - 91,44 - 102 k3 Upper hook height - 98.3 - 103.13 - 117 h4 Upper hook vertical spacing 375.41 377,96 477,Ol 479.56 680 683 b6 Implement mast clearance 41,15 - 41,15 - 54 - k Coupler frame height 283,21 - 365,76 - 508 kz Coupler leg clearance height inside 203 - 203 - 330 - 4 Coupler leg clearance height outside 178 - 178 - 305 12 Coupler frame clearance width 559 - 559 - 660 l3 Coupler frame inside width 796,81 - 931,68 - 1104 - 14 Coupler frame lower outside width - 1 005,08 - 1 130,30 - 1420 5 Coupler frame upper outside width - 1 065,53 - 1 158.75 - 1420 16 Lower link attaching pin inside 762 - 903,2 - 1104 - 17 Lower link attaching pin outside - 1 019,05 - 1 174,75 - 1 420 6 Coupler frame overall span - 222,25 - 222,25 - 305 b8 Upper hook reach 47,75 - 47,75 - 63 - bg Implement lower frame clearance 41,15 - 41.15 - 54 - 5 Dimensions implement associated with Dimensions associated with the implement shall comply with figure 2 and table 2. 5.1 For implements with cantilever-mounted lower hitch pins, special quick coupler hitch pins shall be supplied to dimensions d, I, l2 and 4. Adapter bushings may be supplied which convert existing three-point hitch pins to dimensions (, I, l2 and 4 instead of special quick coupler hitch pins. For three-point hitch implements on which the lower hitch points consist of straddle-mounted pins, no ad- ditional thrust surfaces are required, providing the pin diameter and support dimensions conform to dimen- sions d, I, l2 and b,. The method used and dimensions related to attaching the pins or adaptor bushings to the implement are at the discretion of the implement manufacturer. 5.2 The lower implement attaching point on the quick attaching coupler shall be located in the vertical position such that the lift range, power range and levelling adjustment, as specified in IS0 730-I and IS0 730-3, are fulfilled. 5.3 Implement components, other than the hitch pins, that are in alignment with the lower socket width dimension 6, (see figure 1 and table l) shall not extend forward of the centreline of the lower socket for a distance of 203 mm above the lower socket. Components above this height extending laterally more than 381 mm from the coupler centreline shall 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11001-1:1993(E) not extend more than 25 mm forward of the vertical centreline through the upper hook opening. 5.4 The adapter or lower hitch pin shall be in line within 0,015 mm per 1 mm of pin length. 5.5 The implement shall provide clearance when at- tached to the coupler to permit lowering all elements of the coupler 120,9 mm minimum for categories 2 and 3, and 146 mm minimum for category 4, for sat- isfactory attachment and detachment of the im- plement from the coupler 5.6 The upper hook opening on the implement shall be at the centre of the lower hitch pin shoulders within 3 mm. 5.7 Provisions shall be made for adequate upper hook clearance in those implements which require landing or levelling. 6 Locking device A positive latch shall be provided to prevent an unin- tentional separation of the implement a) Light duty b) Heavy duty Figure 2 - Dimensions associated with implement Table 2 - Dimensions associated with implement Dimensions in millimetres Category 2 Category 3 Category 4 Dimensions Designation min max min max min. max 4 Lower hitch pin or adapter outside di- ameter 36,33 36,58 36,33 36,58 49,7 50,8 4 Lower hitch pin inner shoulder spread 822,5 825,5 963.7 966,7 1 165 1 168 12 Lower hitch pin outer shoulder spread 970,28 973,33 1 Ill,50 1 114,55 1358 1 361 4 Lower hitch pin inner and outer shoulder diameter 50,55 63,75 50,55 63.75 63,0 101,6 4 Coupler mast pin diameter 31,50 31,75 31,50 31,75 44,2 45,0 h, Coupler mast pin vertical spacing 379,48 382,53 481,08 484,13 684,5 687,5 4 Coupler mast pin horizontal spacing - 38,l - 38,1 - 50,8 b2 Lower socket clearance bee 5 5) 70 - 70 - 90 - 4 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11001-1:1993(E) UDC 631.372:621.838.2 Descriptors: agricultural machinery, tractors, agricultural tractors, couplings, rigid couplings, specifications, dimensions Price based on 4 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:38:32 MDTNo reproduction or networking permitted without license from IHS -,-,-