ASTM D5579-12a
(Test Method)Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
SIGNIFICANCE AND USE
5.1 This test method is used to evaluate automotive manual transmission fluids for thermal instability, which results in deterioration of synchronizer performance.
5.2 This test method may also be utilized in other specifications and classifications of transmission and gear lubricants such as the following:
5.2.1 (final API designation of PG-1),
5.2.2 Military Specification MIL-L-2105,
5.2.3 SAE Information Report J308 Axle and Manual Transmission Lubricants, and
5.2.4 Mack Truck GO-H Gear Lubricant Specification.
SCOPE
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures.
1.2 The lubricant performance is measured by the number of shifting cycles that can be performed without failure of synchronization when the transmission is operated while continuously cycling between high and low range.
1.3 Correlation of test results with truck transmission service has not been established. However, the procedure has been shown to appropriately separate two transmission lubricants, which have shown satisfactory and unsatisfactory field performance in the trucks of one manufacturer.
1.4 Changes in this test method may be necessary due to refinements in the procedure, obsolescence of parts, or reagents, and so forth. These changes will be incorporated by Information Letters issued by the ASTM Test Monitoring Center (TMC).2 The test method will be revised to show the content of all the letters, as issued.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5.1 Exception—When materials, products, or equipment are available only in inch-pound units, SI units are omitted.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.7 This test method is arranged as follows:
Section
Scope
1
Referenced Documents
2
Terminology
3
Summary of Test Method
4
Significance and Use
5
Apparatus
6
Test Transmission
6.2
Transmission Mounts
6.3
Oil-Circulating System
6.4
Oil Return Hole
6.5
Air Pressure Controls
6.6
Drive System
6.7
Instrumentation
6.8
Thermocouple Placement
6.9
Reagents and Materials
7
Safety
8
Preparation of Apparatus
9
Cleaning of Parts
9.1
Assembly
9.2
Calibration
10
Transmission and Test Stand Calibration
10.1
Reference Oils
10.2
Reference Oil Test Frequency
10.3
Instrumentation Calibration
10.4
Shift Time Calibration
10.5
Operating Procedure
11
System Flush and Charge
11.1
Test Operation
11.2
Shut-Down Procedure
11.3
Transmission Disassembly
11.4
Determination of Test Results
12
Failure Criteria
12.1
Shifter Fork Wear
12.2
Test Validity Determination
12.3
Report
13
Precision and Bias
14
Keywords
15
Test Validity Calculations and Limits
Annex A1
HTCT Test Report Forms and Data Dictionary
Annex A2
Manual Transmission Cyclic Durability Test Parts Inspection and Wear Measurements
Annex A3
General Information
Relations
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Designation: D5579 − 12a
StandardTest Method for
Evaluating the Thermal Stability of Manual Transmission
1
Lubricants in a Cyclic Durability Test
This standard is issued under the fixed designation D5579; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
Section
Referenced Documents 2
1.1 Thistestmethodcoversthethermalstabilityoffluidsfor
Terminology 3
use in heavy duty manual transmissions when operated at high Summary of Test Method 4
Significance and Use 5
temperatures.
Apparatus 6
Test Transmission 6.2
1.2 The lubricant performance is measured by the number
Transmission Mounts 6.3
of shifting cycles that can be performed without failure of
Oil-Circulating System 6.4
synchronization when the transmission is operated while con-
Oil Return Hole 6.5
Air Pressure Controls 6.6
tinuously cycling between high and low range.
Drive System 6.7
1.3 Correlation of test results with truck transmission ser- Instrumentation 6.8
Thermocouple Placement 6.9
vicehasnotbeenestablished.However,theprocedurehasbeen
Reagents and Materials 7
shown to appropriately separate two transmission lubricants,
Safety 8
which have shown satisfactory and unsatisfactory field perfor- Preparation of Apparatus 9
Cleaning of Parts 9.1
mance in the trucks of one manufacturer.
Assembly 9.2
Calibration 10
1.4 Changes in this test method may be necessary due to
Transmission and Test Stand Calibration 10.1
refinements in the procedure, obsolescence of parts, or
Reference Oils 10.2
reagents, and so forth. These changes will be incorporated by
Reference Oil Test Frequency 10.3
Instrumentation Calibration 10.4
Information Letters issued by the ASTM Test Monitoring
Shift Time Calibration 10.5
2
Center (TMC). The test method will be revised to show the
Operating Procedure 11
content of all the letters, as issued.
System Flush and Charge 11.1
Test Operation 11.2
1.5 The values stated in inch-pound units are to be regarded
Shut-Down Procedure 11.3
as standard. The values given in parentheses are mathematical Transmission Disassembly 11.4
Determination of Test Results 12
conversions to SI units that are provided for information only
Failure Criteria 12.1
and are not considered standard.
Shifter Fork Wear 12.2
1.5.1 Exception—When materials, products, or equipment Test Validity Determination 12.3
Report 13
are available only in inch-pound units, SI units are omitted.
Precision and Bias 14
Keywords 15
1.6 This standard does not purport to address all of the
Test Validity Calculations and Limits Annex A1
safety concerns, if any, associated with its use. It is the
HTCT Test Report Forms and Data Dictionary Annex A2
responsibility of the user of this standard to establish appro-
Manual Transmission Cyclic Durability Test Parts Annex A3
Inspection and Wear Measurements
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
1.7 This test method is arranged as follows:
3
2.1 ASTM Standards:
Section
Scope 1 D235 Specification for Mineral Spirits (Petroleum Spirits)
(Hydrocarbon Dry Cleaning Solvent)
D7422 Test Method for Evaluation of Diesel Engine Oils in
1
This test method is under the jurisdiction of ASTM Committee D02 on
T-12 Exhaust Gas Recirculation Diesel Engine
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.B0.03 on Automotive Gear Lubricants & Fluids.
Current edition approved Dec. 1, 2012. Published March 2013. Originally
3
approved in 1994. Last previous edition approved in 2012 as D5579–12. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/D5579-12A. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, PA 15206-4489. Standards volume information, refer to the standard’s Document Summary page on
This edition incorporates revisions in all Information Letters through No. 11–1. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5579 − 12a
E29 Practice for Using Significant Digits in Test Data to 4.3 Thetransmissionandoilsystemareflushedwiththetest
Determine Conformance with Specifications oil in accordance with the flush procedure.
2.2 SAE Standard:
4.4 The flush oil is drained, and the test oil is measured and
4
SAE J308 Axle and Manual Transmission Lubricants
charged to the transmission.
2.3 Military Standard:
4.5
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5579 − 12 D5579 − 12a
Standard Test Method for
Evaluating the Thermal Stability of Manual Transmission
1
Lubricants in a Cyclic Durability Test
This standard is issued under the fixed designation D5579; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high
temperatures.
1.2 The lubricant performance is measured by the number of shifting cycles that can be performed without failure of
synchronization when the transmission is operated while continuously cycling between high and low range.
1.3 Correlation of test results with truck transmission service has not been established. However, the procedure has been shown
to appropriately separate two transmission lubricants, which have shown satisfactory and unsatisfactory field performance in the
trucks of one manufacturer.
1.4 Changes in this test method may be necessary due to refinements in the procedure, obsolescence of parts, or reagents, and
2
so forth. These changes will be incorporated by Information Letters issued by the ASTM Test Monitoring Center (TMC). The test
method will be revised to show the content of all the letters, as issued.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5.1 Exception—When materials, products, or equipment are available only in inch-pound units, SI units are omitted.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0.03
on Automotive Gear Lubricants & Fluids.
Current edition approved April 15, 2012Dec. 1, 2012. Published May 2012March 2013. Originally approved in 1994. Last previous edition approved in 20102012 as
D5579–10a.–12. DOI: 10.1520/D5579-12.10.1520/D5579-12A.
2
ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, PA 15206-4489. This edition incorporates revisions in all Information Letters through No. 11–1.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5579 − 12a
1.7 This test method is arranged as follows:
Section
Scope 1
Referenced Documents 2
Terminology 3
Summary of Test Method 4
Significance and Use 5
Apparatus 6
Test Transmission 6.2
Transmission Mounts 6.3
Oil-Circulating System 6.4
Oil Return Hole 6.5
Air Pressure Controls 6.6
Drive System 6.7
Instrumentation 6.8
Thermocouple Placement 6.9
Reagents and Materials 7
Safety 8
Preparation of Apparatus 9
Cleaning of Parts 9.1
Assembly 9.2
Calibration 10
Transmission and Test Stand Calibration 10.1
Reference Oils 10.2
Reference Oil Test Frequency 10.3
Instrumentation Calibration 10.4
Shift Time Calibration 10.5
Operating Procedure 11
System Flush and Charge 11.1
Test Operation 11.2
Shut-Down Procedure 11.3
Transmission Disassembly 11.4
Determination of Test Results 12
Failure Criteria 12.1
Shifter Fork Wear 12.2
Test Validity Determination 12.3
Report 13
Precision and Bias 14
Keywords 15
Test Validity Calculations and Limits Annex A1
HTCT Test Report Forms and Data Dictionary Annex A2
Manual Transmission Cyclic Durability Test Parts Annex A3
Inspection and Wear Measurements
Section
Scope 1
Referenced Documents 2
Terminology 3
Summary of Test Method 4
Significance and Use 5
Apparatus 6
Test Transmission 6.2
Transmission Mounts 6.3
Oil-Circulating System 6.4
Oil Return Hole 6.5
Air Pressure Controls 6.6
Drive System 6.7
Instrumentation 6.8
Thermocouple Placement 6.9
Reagents and Materials 7
Safety 8
Preparation of Apparatus 9
Cleaning of Parts 9.1
Assembly 9.2
Calibration 10
Transmission and Test Stand Calibration 10.1
Reference Oils 10.2
Reference Oil Test Frequency 10.3
Instrumentation Calibra
...
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