1、Designation:D596622Standard Test Method forEvaluation of Engine Oils for Roller Follower Wear in Light-Duty Diesel Engine1This standard is issued under the fixed designation D5966;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the y
2、ear of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis test method is continually undergoing changes to reflect refinements in procedure,obsoles-cence of parts or re
3、agents.These changes or updates,as well as general information regarding the testmethod,are issued as information letters by the ASTM Test Monitoring Center(TMC).Copies ofinformation letters pertaining to the test method may be obtained by contacting the ASTM TestMonitoring Center.2The test method c
4、an be used by any properly equipped laboratory,without assistance of anyone notassociated with that laboratory.However,TMC provides reference oils and an assessment of the testresults obtained on those oils by the laboratory.By this means,the laboratory will know whether theiruse of the test method
5、gives results statistically similar to those obtained by other laboratories.Furthermore,various agencies require that a laboratory utilize the TMC services in seekingqualification of oils against specifications.For example,the U.S.Army imposes such a requirement,in connection with several military l
6、ubricant specifications.Accordingly,this test method is written for use by laboratories which utilize the TMC services.Laboratories that choose not to use these services may simply ignore those portions of the testprocedure which refer to the TMC.1.Scope1.1 This engine lubricant test method is commo
7、nly referredto as the Roller Follower Wear Test.Its primary result,rollerfollower shaft wear in the hydraulic valve lifter assembly,hasbeen correlated with vehicles used in stop-and-go deliveryservice prior to 1993.It is one of the test methods required toevaluate lubricants intended to satisfy the
8、API CG-4 perfor-mance category.This test has also been referred to as the 6.2 LTest.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.2.1 ExceptionsWhere there is no direct SI equivalent,such as pipe fittings,thermocouple dia
9、meters,and NPT screwthreads.Also,roller follower wear is measured in mils.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices an
10、d deter-mine the applicability of regulatory limitations prior to use.1.4 Table of Contents:SectionScope1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Reagents7Guidelines on Substitution7.1Apparatus6Preparation of Apparatus8New Engine Preparation8.1Installation of Auxi
11、liary Systems andMiscellaneous Components8.2Test Procedure9Description of Test Segments and Organizationof Test Procedure Sections9.1Engine Parts Replacement9.2Engine Starting Procedure9.3Normal Engine Shutdown Procedure9.4Emergency Shutdown Procedure9.5Unscheduled Shutdown and Downtime9.6New Engine
12、 Break-In9.7Pretest Procedure9.8Fifty-Hour Steady State Test9.91This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.B0.02 on Heavy Duty Engine Oils.Current edition approved April 1,2022.
13、Published April 2022.Originallyapproved in 1996.Last previous edition approved in 2013 as D5966 13,whichwas withdrawn January 2022 and reinstated inApril 2022.DOI:10.1520/D5966-22.2ASTM Test Monitoring Center,203 Armstrong Drive,Freeport,PA 16229,www.astmtmc.org.This edition incorporated revisions c
14、ontained in all InformationLetters through No.12-1.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Deci
15、sion on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1Periodic Measurements9.10Oil Sampling and Oil Addition Procedures9.11End of Test(EOT)Procedure9.12Calculation and Interpretati
16、on of Test Results10Environment of Parts Measurement Area10.1Roller Follower Shaft Wear Measurements10.2Oil Analysis10.3Assessment of Test Validity10.4Final Test Report11Reporting Calibration Test Results11.1Report Forms11.2Interim Non-Valid Calibration Test Summary11.3Severity Adjustments11.4Precision and Bias12Precision12.1Precision Estimate12.2Bias12.3Keywords13ANNEXESGuidelines for Test Part Substitution or ModificationAnnex A1Guidelines for Units and Specification FormatsAnnex A2Detailed Sp
