A field test of one commercial oil and two self-formulated oils with two different viscosity grade was conducted on 31 tractors. The key properties for monitoring used-oil degradation are viscosity, IR spectrum, wear metals, water and silicon contents. TAN and insolubles did not change significantly during service. The models capable of characterizing used-oil properties are proposed. The warning limits are established and the relationships between bench tests and field performance are also discussed.
Multipurpose Tractor Hydraulic Fluids Field Test-Used-Oil Analysis and its Significance
Sae Technical Papers
1988 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1988
01.10.1988
Aufsatz (Konferenz)
Englisch
Metals , Hydraulic fluids , Water , Wear
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