Lube In-service Time Key to Proper Analysis Interpretation

摘要

One of the most important pieces of information in oil analysis is the amount of operating time on the lubricant, which is typically reported in hours or miles/kilometers. The time that the lubricant has been in service, or "lubricant time", is vital to determining the severity of a wear or contamination condition and whether maintenance action is warranted. Consider the following scenario: A mobile hydraulic system has 50 parts per million (ppm) of silicon/silica (dirt), which would be a cautionary level for a lube in service for 500 hours. However, if the lubricant time reported was only 25 hours, the 50 ppm of silicon is a more severe condition. A recommendation of investigating and correcting the source of contamination would be appropriate.