Oil Contamination problems
ISO 4406 - the cleanliness code explained
What is Viscosity?
What is Wear?
What is Hepa
While oil contamination takes many forms, the following three classifications cover the majority of industrial problems:
creep in from the surrounding atmosphere.
The most troublesome sources are often:
This forms primarily as a result of oxidation of the oil itself, especially at high temperatures. Accumulation of fine particles may also fill clearance spaces by silting, resulting in erratic operation and sticking of hydraulic system valves and variable flow pumps.