I am still awaiting for a response from ROBOTIS for my previous post about Lubricant Leaking from Dynamixel Pro L54-50-S50...
I'm checking with development department whether the product should be repaired or not.
Thank you for your patience.
The Dynamixel Pro L54 you have shows unusual lubricant leakage and therefore it should be repaired.
Please proceed RMA(http://en.robotis.com/model/page.php?co_id=repaircenter) for the service.
Was there a large amount of load or force applied on the axis from a specific direction?