Abstract
Nippon Kaiji Kyokai is now trying to detect the lubricating conditionas on marine machinery by applying ferrography.
After studying the relationships between the inspection results by surveyors and the used oil analysis results, we reached the conclusion that, if the direct reading ferrograph (DR) shows to be under a certain limit on each machinery that system is in a good lubricating condition at high reliability.
This paper reports the mean DR values of 2 cycle diesel engine, steam turbine and oil lubricated stern tube where good lubricating conditions are observed.
