Reply to "TAN is dropping"

rttechMember

Hi Hal,
This article has an explanation PQ and some worthwhile reading, http://www.machinerylubricatio...4/oil-analysis-tests
Note TAN is not mentioned and the TAN on your new oil appears to be more elevated than I’ve noted as typically TAN would be lower and elevate, yours appears elevated and then dropping making suspect it’s part of the EP chemistry.
The reality for efficient monitoring of gear drives is particle count and PQ, if those two commence to elevate then other parameters could be checked but we would normally check by microscope to identify what the particle are elevating the count and maintain accordingly.
Rob S

7/23/139:49 PM

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