Practicing Oil Analysis September 2004

Because particles cause so many problems, the very best oil analysis programs incorporate some degree of on-site analysis. The simple patch test allows for the quick detection of abnormal contamination levels and wear debris so that corrective actions can be scheduled accordingly.

The oxidation stability of base stocks and engine oils has traditionally been determined through the rotating pressure vessel oxidation test (RPVOT). Recent experiments on a set of SAE 5W-30...

Proper oil sampling is critical to an effective oil analysis program. Without a representative sample, further oil analysis endeavors are futile.There are two primary goals in obtaining a representative oil sample. The first goal is to maximize data density. The sample should be taken in a way that ensures there is as much information per milliliter of oil as possible.

Recently, an engine oil sample was tested to determine the root cause of a failure that resulted in an engine seizing. Initial observation of the oil sample showed it was thick and almost...

Rolling element bearings are standard components in most pumps. Of the many factors that affect their long-term performance and reliability, contamination in the bearing lubricating oil plays...

The ideal oil analysis program should be a blend of three analysis techniques that are both sustainable and environmentally-friendly. With the help of information technology, a site can select the most appropriate evaluation for each application.

After experiencing two hydraulic pump seal failures in as many months on a pump that normally “runs forever” with no problems, the maintenance staff at Alcoa Mill Products, Lancaster, Pa., decided...

During a routine thermography scan of rotating equipment at Harrison Power Station, it was noted that the 3B recycle pump gearbox was operating at elevated temperatures. The other five pumps...