grannysewer

Hi,
I have a friend that brought me this Goodhousekeeper machine in hopes that I could put her upper thread tension back together. She loosened the tension too much and it simply fell off.
She found at a sale and does not have a manual. We have looked at ismacs and managemylife for the manual, but have not found anything manuals for this machine.
Anyone have any suggestions or diagrams or pictures on how to fix this upper tension?
Thank you very much!!!
Bobbie