For most of the bearings, check the oil level in the bearing housing. If you find there is water or moisture in the oil, then drain a little oil with water from the oil tank. The limited amount of moisture in the form of water will be drained, thus the quality of oil will improve. Oil purifiers mostly in low vacuum dehydrator are best for removing moisture from the oil.
Tip Provided By: MANAS RANJAN SAHOO, JHAJJAR POWER LIMITED