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  1. greye2641

    When to replace my hydraulic fluid?

    When to change oil based on oil analysis alarm bells: wear debris. (Al) 5ppm, (Cr)9ppm,(Cu)12ppm,(Fe) 26ppm.(Si) 15ppm Viscosity. 12% of new fluid. TAN higher than 2 change oil. new oil TAN 0.2mgKOH grm.The rate of change of TAN number is important more than absolute...

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