How do I unjam my Lervia KH4000 Sewing Machine?

Hello Clare,
The only answer is brute force if the material is stuck in there, undo the needle clamp and see if you can move the balance wheel backwards, cut as much material as you can it may take a bit of time, once you have the material and maxchine freed check the raceway for any thread that may be jammed

ken
July 2011