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SAE TECHNICAL
PAPER SERIES 2000-01-2540
Strategies for Developing Performance
Standards for Alternative Hydraulic Fluids
Gary H. Kling
Caterpillar Inc.
George E. Totten and A. Ashraf
Union Carbide Corporation
Reprinted From: Lubricants for Off-Highway Applications
(SP-1553)
International Off-Highway & Powerplant
Congress & Exposition
Milwaukee, Wisconsin
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Global Mobility DatabaseDownloaded from SAE International by Univ of California Berkeley, Sunday, August 05, 20182000-01-2540
Strategies for Developing Performance Standards for
Alternative Hydraulic Fluids
Gary H. Kling
Caterpillar Inc.
George E. Totten and A. Ashraf
Union Carbide Corp.
Copyright © 2000 Society of Automotive Engineers, Inc.
ABSTRACT
There has been an ongoing interest in replacing mineral oil
with more biodegradable and/or fire-resistant hydraulic fluidsin many mobile equipment applications. Although manyalternative fluids may be more biodegradable, or fire-resistant,or both than mineral oil, they often suffer from otherlimitations such as poorer wear, oxidative stability, and yellowmetal corrosion which inhibit their performance in high-pressure hydraulic systems, particularly high pressure pistonpump applications. From the fluid supplier’s viewpoint, thedevelopment of a definitive test, or series of tests, thatprovides sufficient information to determine how a given fluidwould perform with various hydraulic components would be ofinterest because it would minimize extensive testing. This isoften too slow or prohibitively expensive. Furthermore, fromOEM’s (original equipment manufacturer’s) point of view, itwould be advantageous to develop a more effective, industryaccepted fluid analysis screening. The objective of this paperis to outline the strategies that may be followed
SAE_2000-01-2540_Caterpillar_Strategies for Developing Performance Standards for Alternative Hydraulic Fluids
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