ASTM D6973-04e1
(Test Method)Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
SCOPE
1.1 This test method covers a constant volume high-pressure vane pump test procedure for indicating the wear characteristics of petroleum hydraulic fluids. See Annex A1 for recommended testing conditions for water-based synthetic fluids.
1.2 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only.
1.3 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.
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An American National Standard
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Designation:D6973–04
Standard Test Method for
Indicating Wear Characteristics of Petroleum Hydraulic
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Fluids in a High Pressure Constant Volume Vane Pump
This standard is issued under the fixed designation D 6973; 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 (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Editorial changes were made throughout in March 2005.
1. Scope ANSI/(NFPA) T2.13.1 R3-1998 Recommended Practice—
Hydraulic Fluid Power—Use of Fire-Resistant Fluids in
1.1 This test method covers a constant volume high-
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Industrial Systems
pressure vane pump test procedure for indicating the wear
characteristics of petroleum hydraulic fluids. SeeAnnexA1 for
3. Terminology
recommended testing conditions for water-based synthetic
3.1 Definitions of Terms Specific to This Standard:
fluids.
3.1.1 flushing, v—the process of cleaning the test system
1.2 The values stated in SI units are to be regarded as
before testing to prevent cross-contamination.
standard. The values in parentheses are for information only.
1.3 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 Hydraulic fluid in the amount of 190 6 4 L(50 6 1 gal)
responsibility of the user of this standard to establish appro-
is circulated through a rotary vane pump system for 50 h at a
priate safety and health practices and determine the applica-
pump speed of 2400 6 20 r/min and a pump outlet pressure of
bility of regulatory limitations prior to use.
20.7 6 0.2 MPa (3000 6 20 psig). Fluid temperature at the
2. Referenced Documents pump inlet is 95 6 3°C (203 6 5°F).An ISO Grade 32 or 10W
2 viscosity is required.
2.1 ISO Standards:
4.2 The cam ring and all ten vanes should be individually
ISO 4021 Hydraulic Fluid Power—Particulate Contamina-
weighed before and after the test. The weight loss of the cam
tionAnalysis—Extraction of Fluid Samples from Lines of
ring should be reported with the combined weight loss of all
an Operating System
ten vanes. The intra-vanes (inserts) are not part of the required
ISO 4406 Hydraulic Fluid Power—Fluids—Method for
weight loss measurements and should be separately measured
Coding the Level of Contamination by Solids Particles
if desired. Other reported values are fluid cleanliness before
ISO 7745 Hydraulic Fluid Power—Fire-Resistant (FR)
and after the test, initial flow rate, and final flow rate.
Fluids—Guidelines for Use
4.3 Prior to installing the hydraulic test fluid into the rig, a
ISO 11171 Hydraulic Fluid Power—Calibration of Auto-
stand flush is required to remove any contaminants. A mini-
matic Particle Counters for Liquids
mum quantity of 190 6 4 L (50 6 1 gal) of fluid (see Note 1)
ISO 11500 Hydraulic Fluid Power—Determination of Par-
made of the same chemical formulation as the test fluid, is
ticulate Contamination by Automatic Counting Using the
required for the stand flush. Therefore the total quantity of oil
Light Extinction Principle
required for the test is 380 L (100 gal).
2.2 Other Documents:
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SAE 100R13–20 Hydraulic Hose Specification
5. Significance and Use
5.1 This test method is an indicator of the wear character-
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istics of petroleum hydraulic fluids operating in a constant
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
volume vane pump. Excessive wear in vane pumps could lead
D02.N0 on Lubricating Properties.
to malfunction of hydraulic systems in critical industrial or
CurrenteditionapprovedMay1,2004.PublishedJuly2004.Originallyapproved
mobile hydraulic applications.
in 2003. Last previous edition approved in 2003 as D 6973–03.
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Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036.
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Available from Society of Automotive Engineers (SAE), 400 Commonwealth Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
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Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6973–04
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NOTE—See Eaton Overhaul Manual I-3144–S (Appendix B)
FIG. 1 System Schematic
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6. Apparatus 6.1.3 Rotary Intra-Vane Pump,replaceablecartridgetype,
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Vickers 35VQ25A-11*20 (Cartridge Kit P/N 4998040-002)
6.1 The basic system consists of the following (see Fig. 1):
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rated at 81 cm /rev (4.98 in. /rev) flow at 1200 rev/min. A
6.1.1 Electric Motor, or other suitable drive, capable of a
...
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