Hello. Looking for a little help with replacing the table locks on a brown marble. The locks are getting rough so I figured I'd replace them. I purchased a new set and assumed this would be a quick, easy swap-out but when I unscrewed the existing locks they would not then push out. I banged on the front of the locks a bit with a rubber mallet and they still would not come out. I'm assuming they are just kinda sealed in there since they are probably original and will need a few good whacks but wanted to make sure I'm not missing something. Should the two table locks just pop off with a few good hits to the front of the locks? Thanks in advance!