There is a product called "TriFlow" that is a miracle for cleaning and lubricating everything that moves in the Elna sewing machines. Often lint and thread get stuck in the mechanism. Do you have instructions? They show how to stick the brush into the bobbin case and rotate the wheel, in order to clean and push out loose lint/thread, etc.
In addition, take off the top and bottom plates and spray TriFlow on all the moving parts, then take a brush and brush them all (wiping the brush off on an old cotton rag).
The Elnas tx is a sweet machine, worth taking good care of.
sherm
Sherman
November 2008