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Appendix. Oil Contamination
Causes and Measures
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Causes
Causes for contamination can be divided into two categories.
○
Before the completion of installation
Foreign particles in the tubing or pump tank.
(Manufacturing defects of the assembly parts or connecting
parts and unconformity during construction.)
○
During operation
Foreign particles from outside or generated inside of the
system.
(Condensation of the moisture in the air due to change in
temperature or sludge by oxidation of lubrication oil itself.)
■
Measures
1. Clean the tank and remove the remove the foreign particles.
2. Keep the oil for refilling in the proper place.
If the system is installed and/or oil is stored outdoors, proper
care must be taken since introduction of dust or rain into
the oil would lead to system malfunction.
