MP Filtri LPA2, User Manual

Page: 50 / 72

Appendix E
50 Recommendations
fluids which are cleaner than those stated will increase life. However, the di-
versity of hydraulic systems in terms of pressure, duty cycles, environments,
lubrication required, contaminant types, etc, makes it almost impossible to
predict the components service life over and above that which can be rea-
sonably expected. Furthermore, without the benefits of significant research
material and the existence of standard contaminant sensitivity tests, manufac-
turers who publish recommendations that are cleaner than competitors may
be viewed as having a more sensitive product.
Hence there may be a possible source of conflicting information when com-
paring cleanliness levels recommended from different sources.
The table gives a selection of maximum contamination levels that are typ-
ically issued by component manufacturers. These relate to the use of the
correct viscosity mineral fluid. An even cleaner level may be needed if the
operation is severe, such as high frequency fluctuations in loading, high tem-
perature or high failure risk.