Oil is at the heart of powerful hydraulic systems, from diggers to plant machinery, and each system relies on oil to function.
Changing oil is a headache for service engineers as, unlike changing the oil in your car, oil changes for industrial equipment is based on need. Often service engineers plan an oil change to halt further contamination. However an oil change is not correcting the problem; not only is this costly but provides further consequences for the environment with oil waste.
Why is analysis so important?
Contamination can either come from external sources (ingestion) or are generated from within (ingression). New systems often have contaminants left behind from manufacturing and assembly. Unless they are filtered as they enter the circuit, both the original fluid and the make-up fluid are likely to contain more contaminants than the system can tolerate. Systems can ingest contaminants through components such as worn cylinder rod seals. Furthermore, airborne contaminants can be a problem during routine maintenance, as well as friction and heat producing contamination internally.