1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J1298_201008SURFACEVEHICLESTANDARDJ1298 AUG2010 Issued 1980-04Revised 2010-08Superseding J1298
5、MAY2008 Connections for Fluid Power and General Use - Hydraulic Couplings -Diagnostic Port Sizes and Locations RATIONALEThis SAE project is intended to accommodate the withdrawal of SAE J2244. FOREWORDSAE J1298 has been revised to update the metric and inch stud end standards to current specificatio
6、ns. 1. SCOPE SAE J1298 covers the recommended diagnostic port sizes for use in measuring hydraulic fluid temperature, pressure, flow, and for obtaining fluid samples. See SAE J1502 for the detailed coupling specifications. 1.1 Application This SAE Standard applies to self-propelled work machines as
7、referenced in SAE J1116. 2. REFERENCES 2.1 Applicable Documents The following documents contain provisions which, through reference in this text, constitute provisions on this document. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties
8、to agreements based on this document are encouraged to investigate the possibility of applying the most recent editions of the standards indicated as follows. Members of IEC and ISO maintain registers of currently valid international standards. Provided by IHSNot for ResaleNo reproduction or network
9、ing permitted without license from IHS-,-,-SAE J1298 Revised AUG2010 Page 2 of 42.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J518 Hydraulic Flanged
10、Tube, Pipe, and Hose Connections, Four-Bolt Split Flange Type SAE J1116 Categories of Off-Road Self-Propelled Work Machines SAE J1502 Connections for Fluid Power and General UseHydraulic CouplingsDiagnostic SAE J1926-2 Connections for General Use and Fluid PowerPorts and Stud Ends with ASME B1.1 Thr
11、eads and O-Ring SealingPart 2: Heavy-Duty (S Series) Stud Ends 2.1.2 ISO Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ISO 4021 Hydraulic fluid powerParticle contamination analysisExtraction of fluid s
12、amples from lines of an operating system ISO 5598 Fluid power systems and componentsVocabulary ISO 6149-2 Connections for fluid power and general usePorts and stud ends with ISO 261 metric threads and O-ring sealingPart 2: Heavy-duty (S) series stud endsDimensions, design, test methods and requireme
13、ntsISO 6162 Hydraulic fluid power - Flange connectors with split or one-piece flange clamps and metric or inch screwsISO 11926-2 Connections for fluid power and general usePorts and stud ends with ISO 263 inch threads and O-ring sealingPart 2: Heavy duty (S) series stud endsDimensions, design, test
14、methods and requirements (This document is technically equivalent to SAE J1926-2.) 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this SAE Technical Report.2.2.1 SAE Publication Available from SAE International, 400 Commo
15、nwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J515 Specification for O-Ring Materials Used with Hydraulic Connectors 2.2.2 ISO Publication Available from American National Standards Institute, 25 West 43rd Street, N
16、ew York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ISO 8925 Earth Moving Machinery-Diagnostic Ports Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1298 Revised AUG2010 Page 3 of 43. DEFINITIONS For the purpose of this document, the definit
17、ions given in ISO 5598 and the following definition apply. 3.1 QUICK ACTION The joining of two components in a fashion with only hands and without wrenches and other mechanical means. 4. REQUIREMENTS 4.1 Size and Type of Port 4.1.1 Temperature, Pressure, and Sampling The port size for measuring temp
18、erature, pressure, and for obtaining fluid samples shall be M14x1.5 per ISO 6149-2 or shall be 9/16-18 UNF-2B per SAE J1926-2 (ISO 11926-2). 4.1.2 Flow Measurement Flow measurement ports shall be adequate for the flow to be measured. Sizes below 25.4 mm tube shall be ISO 6149-2 or SAE J1926-2 (ISO 1
19、1926-2), and size 25.4 mm and above shall be to SAE J518 (ISO 6162), four bolt flange. 5. APPLICATION GUIDELINES 5.1 Number of Diagnostic Points The number of diagnostic checking points will be determined by the manufacturer and should be commensurate with the complexity of the system being checked
20、and the economics required. 5.2 Location At least one diagnostic port should be located at the main system relief valve. However, consideration should be given to the following locations: pump inlet and outlet, valve inlet and outlet, valve work ports, filter inlet and outlet, actuator inletand outl
21、et, cooler inlet and outlet, and in each circuit with a relief valve. The preferred port location is in the component; however, it must be readily and safely accessible which might often require it to be located in a line. The ports should be located in the fluid stream to minimize any condition whi
22、ch might influence inaccuracies in readings. Diagnostic ports intended for the removal of representative fluid samples should be located in a turbulent flow section of the system and conform to ISO 4021. 5.3 Accessibility 5.3.1 Test ports should be accessible with common tools without the removal of
23、 any component other than sealing caps and access panels or plates. 5.3.2 A free access area of a minimum radius of 75 mm around centerline of port and 200 mm from port surface should be provided. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J
24、1298 Revised AUG2010 Page 4 of 46. NOTES 6.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the doc
25、ument title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE COMMON TESTS TECHNICAL STEERING COMMITTEE C1HYDRAULIC SYSTEMS AND THE SAE FLUID CONDUCTORS AND CONNECTORS TECHNICAL STEERING COMMITTEE C1 HYDRAULIC TUBE FITTINGS COMMITTEE Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
