Again, oiling the socket with 3 in 1 only lubricates the socket itself and nothing else...Their suggestion on maintenance is misleading and is why I think a lot more people have jacks that go south from lack of lubrication. I have been told that the top plate eventually drys out and this is why it binds up. I also have heard that the bearing can go bad....I'm surprised that they wont sell the parts...again I haven't had anything break but I believe the binding I was experiencing was because that plate was not lubed very well.