We are seeing a grease leakage problem in our one of our electro-mechanical product while we ship it to our customer. This does not happen with the all the parts. We do a vibration test before we ship it (no leakage found after test) and yet while shipping there is leakage in some of our parts. After analyzing we found that the leakage occurs in parts that use the last remaining portion of the grease. We use a pressure grease dispenser for applying the grease to this assembly and when the bucket of grease is about to empty the grease content is not consistent as the oil from the grease starts to separate. We have currently gathered the data of the parts and saw that the issue occurred in assemblies that use the last remaining portion of grease, however the data is not 100% consistent. Currently we are trying to change the grease dispenser to address the issue.
Could there be an alternate solution/ reason for the leakage?
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