With all these
stories of hitting stuff to get it moving... please remember the number 1 rule of hitting stuff with a hammer to get it working
never ever tell the crayon eaters what you are doing, how you a doing it and why you are doing it.
Because a light tap to free up a stuck bearing becomes a 3 day job to remove said part after the crayon muncher has twatted the thing with a 5lb lump hammer "because he saw you use a small plastic mallet to give it a light tap"
Icon.... for your expression when you see the wreckage.....