Toyota model 2700 series sewing machine Jammed completely?

how to use the sewing drop in disc for this machine have lost the instructions

carol Etheridge
June 2012

Hello Debs,
Chances are there is thread stuck in the raceway, force the balance wheel backwards as hard as you can and you will probably free it off, it only takes a very small piece of thread to jam the machine, if that does not work then it is stuck elsewhere and it will mean a process of ellimination, e-mail me if you have a problem.
Ken

drivewithken@blueyonder.co.uk
July 2008