1、 ANSI/ASABE AD10448:1994 NOV2014 Agricultural tractors Hydraulic pressure for implements American Society of Agricultural and Biological Engineers ASABE is a professional and technical organization, of members worldwide, who are dedicated to advancement of engineering applicable to agricultural, foo
2、d, and biological systems. ASABE Standards are consensus documents developed and adopted by the American Society of Agricultural and Biological Engineers to meet standardization needs within the scope of the Society; principally agricultural field equipment, farmstead equipment, structures, soil and
3、 water resource management, turf and landscape equipment, forest engineering, food and process engineering, electric power applications, plant and animal environment, and waste management. NOTE: ASABE Standards, Engineering Practices, and Data are informational and advisory only. Their use by anyone
4、 engaged in industry or trade is entirely voluntary. The ASABE assumes no responsibility for results attributable to the application of ASABE Standards, Engineering Practices, and Data. Conformity does not ensure compliance with applicable ordinances, laws and regulations. Prospective users are resp
5、onsible for protecting themselves against liability for infringement of patents. ASABE Standards, Engineering Practices, and Data initially approved prior to the society name change in July of 2005 are designated as “ASAE“, regardless of the revision approval date. Newly developed Standards, Enginee
6、ring Practices and Data approved after July of 2005 are designated as “ASABE“. Standards designated as “ANSI“ are American National Standards as are all ISO adoptions published by ASABE. Adoption as an American National Standard requires verification by ANSI that the requirements for due process, co
7、nsensus, and other criteria for approval have been met by ASABE. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, b
8、ut not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. CAUTION NOTICE: ASABE and ANSI standards may be revised or withdrawn at any time. Additionally, procedures of ASABE require that action be taken
9、periodically to reaffirm, revise, or withdraw each standard. Copyright American Society of Agricultural and Biological Engineers. All rights reserved. ASABE, 2950 Niles Road, St. Joseph, Ml 49085-9659, USA, phone 269-429-0300, fax 269-429-3852, hqasabe.org ANSI/ASABE AD10448:1994 NOV2014 Copyright A
10、merican Society of Agricultural and Biological Engineers 1 ANSI/ASABE AD10448:1994 NOV2014 Approved November 2014 as an American National Standard Agricultural tractors Hydraulic pressure for implements These materials are subject to copyright claims of ISO and ASABE. No part of this publication may
11、 be reproduced in any form, including an electronic retrieval system, without the prior written permission of ASABE. All requests pertaining to the ANSI/ASABE AD10448:1994 NOV2014 standard should be submitted to ASABE. This standard was reviewed for adoption by the ASABE Agricultural Machinery Tract
12、ors Technical subcommittee, and has been formerly approved by the Power and Machinery Division. Adopted by ASABE November 2014; approved as an American National Standard November 2014. Keywords: Hydraulic, Implement, Tractor 0 Foreword 0.1 ANSI/ASABE AD10448:1994 MONYEAR, Agricultural tractors Hydra
13、ulic pressure for implements, is an adoption with deviations of the identically titled ISO standard ISO 10448:1994, Agricultural tractors Hydraulic pressure for implements. Deviations noted in the following Foreword sections pertain to those provisions where harmonization could not be achieved betwe
14、en ASABE and the International Standard. 0.2 ANSI/ASABE AD10448:1994 MONYEAR specifies the characteristics of the hydraulic pressure from agricultural tractors to connect hydraulic devices on implements, to permit interchangeable use of various types of implements using remote cylinders and other hy
15、draulic devices. It applies to agricultural tractors intended for interchangeable implements. 0.3 Six normative references are listed in ISO 10448:1994. The responsible ASABE committee has reviewed these references and approved the following deviations: 0.3.1 Replace ISO 730-1: Agricultural wheeled
16、tractors Rear-mounted three-Point linkage Part 1: Categories 1, 2, 3 and 4, with ASABE AD730:2009 DEC2012 Agricultural wheeled tractors Rear-mounted three-point linkage Categories 1N, 1, 2N, 2, 3N, 3, 4N and 4. Any reference to ISO 730-1 in the printed portion of ISO 10448:1994 shall be replaced by
17、ASABE AD730:2009 DEC2012. 0.3.2 Replace ISO 5675:1992, Agricultural tractors and machinery General purpose quick-action hydraulic couplers, with ANSI/ASAE S366.2 MAY2004 (ISO 5675:1992) Agricultural tractors and machinery General purpose quick-action hydraulic couplers. Any reference to ISO 5675:199
18、2 in the printed portion of ISO 10448:1994 shall be replaced by ANSI/ASAE S366.2 MAY2004 (ISO 5675:1992). 0.4 This standard has been approved as an American National Standard by ANSI (American National Standards Institute). 0.5 This standard deviates from ISO 10448:1994 as follows: 0.5.1 See Section
19、 0.3 for Normative reference deviations. Text of ISO 10448:1994 Agricultural tractors Hydraulic pressure for implements, follows. ANSI/ASABE AD10448:1994 NOV2014 Copyright American Society of Agricultural and Biological Engineers 2 1 Scope This International Standard specifies the characteristics of
20、 the hydraulic pressure from agricultural tractors to connect hydraulic devices on implements, to permit interchangeable use of various types of implements using remote cylinders and other hydraulic devices. lt applies to agricultural tractors intended for interchangeable implements. 2 Normative ref
21、erences The following Standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International
22、Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 730-1: 1, Agricultural wheeled tractors Rear-mounted three-Point linkage Part 1: Cat
23、egories 1, 2, 3 and 4. ISO 789-10: 2, Agricultural tractors Test procedures Part 10: Hydraulic power at tractor/implement interface. ISO 5675:1992, Agricultural tractors and machinery General purpose quick-action hydraulic couplers. ISO 6149-1:1993, Connections for fluid power and general use Ports
24、and stud ends with ISO 261 threads and O-ring sealing Part 1: Ports with O-ring seal in truncated housing. ISO 6149-2:1993, Connections for fluid power and general use Ports and stud ends with ISO 261 threads and O-ring sealing Part 2: Heavy-duty (S series) stud ends Dimensions, design, test methods
25、 and requirements. ISO 6149-3:1993, Connections for fluid power and general use Ports and stud ends with ISO 261 threads and O-ring sealing Part 3: Light-duty (L series) stud ends Dimensions, design, test methods and requirements. 3 Terms and definitions For the purposes of this document, the follow
26、ing terms and definitions apply. 3.1 external hydraulic service: Source of hydraulic power, derived from the hydraulic system of the agricultural tractor, available for use on an implement mounted on, coupled to or otherwise used in conjunction with it. 3.2 coupler pair: Pair of female hydraulic cou
27、plers compatible with male couplers specified in ISO 5675, mounted on agricultural tractors and connected to the hydraulic system to allow flow from one coupler to the other. 3.3 available differential pressure: Steady state difference in hydraulic pressure between two coupler parts on the implement
28、 side. 1To be published. (Revision of ISO 730-1:1990) 2To be published. ANSI/ASABE AD10448:1994 NOV2014 Copyright American Society of Agricultural and Biological Engineers 3 3.4 maximum pressure: Maximum steady state hydraulic pressure at either male coupler connected to a coupler pair. 3.5 maximum
29、loop return pressure: Maximum steady hydraulic pressure at the male coupler returning flow to a hydraulic system that can reverse the flow through that coupler. 3.6 maximum sump return pressure: (1) With coupler: Maximum steady state hydraulic pressure at the male coupler returning flow directly to
30、the reservoir. (2) Without coupler: Maximum steady state hydraulic pressure at an M22 1,5 or M27 2 thread size port in accordance with ISO 6149-1, ISO 6149-2 or ISO 6149-3, returning flow directly to the reservoir. 3.7 peak pressure: Maximum instantaneous hydraulic pressure at either male coupler co
31、nnected to a coupler pair. 4 Requirements Pressures as listed in Table 1 should be within their limits as the flow is varied between the specified flow range limits and the loop oil temperature remains within limits. The pressures shall be measured on the implement side (male couplers) which conform
32、 to size l2,5 in ISO 5675. The test method shall be in accordance with ISO 789-10. Table 1 Characteristic Value Maximum pressure 20,5 MPa (205 bar) Minimum differential pressure 15 MPa (150 bar) Maximum loop return pressure 1 MPa (10 bar) Maximum sump return pressure, with coupler 0,5 MPa (5 bar) Ma
33、ximum sump return pressure, without coupler 0,2 MPa (2 bar) Peak pressure 29 MPa (290 bar) Specified flow range 0 to 30 l/min for category 1 tractors1) 0 to 50 l/min for categories 2 and 3 tractors1) Oil Temperature 65 C 5 C NOTE: The specified flow range of 0 to 30 l/min is recommended for partial-consuming (e.g. 10 I/min to 30 I/min) devices and of 0 to 50 l/min for continuous-consuming (e.g. 35 I/min to 50 I/min) devices. 1) Categories according to ISO 730-1.
