Why is hydraulic fluid red

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Search Search forums Search profile posts. Members Current visitors New profile posts. Hydraulic fluid Is Red. Thread starter wdlanning Start date Apr 21, JavaScript is disabled.

For a better experience, please enable JavaScript in your browser before proceeding. Lifetime Member. Nov 7, 2 18 philadelphia pa. Rcflyer Member Equipment. Oct 14, 67 21 8 Traverse City, Michigan. Thats not much information to go on. It is recommended that system pressure be kept as low as possible for maximum system efficiency and longevity of the oil and system components.

Contaminants are another factor that can affect oxidation. A 1-percent sludge concentration in hydraulic fluid will double the rate of oxidation as compared to fluid with no sludge at all. Certain metals, most notably copper, act as catalysts for oxidation reactions, particularly in the presence of water.

The presence of water and copper is a common occurrence when a heat exchanger ruptures. It is quite likely that there are years of service remaining in your fluid.

Get a good representative sample and have it analyzed. The most representative sample will be taken immediately downstream of the pump. The second best location is from the exact center of the reservoir, obtained either while the system is running or immediately after shutdown. If you are just beginning a fluid sampling program, a good starting point is every 13 weeks.

Adjust the frequency of sampling based on the analysis results. Keep at least a full year of analyses on file for comparison and spotting trends. Only then will you truly know the condition and serviceability of your hydraulic fluid.

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Jack has Read More. Related Articles. Transmission fluid and hydraulic fluid are both petrochemicals. It could be beneficial or deleterious depending on the mixture. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Blog Is hydraulic oil Red? Ben Davis March 14, Is hydraulic oil Red?

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