How to Determine the Cause and Source of Hydraulic Oil Varnishing
Journal Title: Mašinstvo - Year 2018, Vol 15, Issue 3
Abstract
While performing ordinary oil condition monitoring on industrial systems, we can often notice that hydraulic oil has changed its color. The source of the problem can be very difficult to locate and is often consequence of complex chemical processes in hydraulic oil. Finding the root cause of oil varnishing in hydraulic machine design and its operating conditions can be very demanding. The paper preliminarily presents the most common causes that usually lead to oil darkening. Accordingly, a forensic search method for determining the root cause of oil varnishing is presented and applied on an example of a large hydraulic press system, controlled by a complex valve control system mounted on the control block.
Authors and Affiliations
Darko Lovrec, Vito Tič
Keywords
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