Thanks, Johan, for answering. The spring is on the main tension at the front of the machine. The spring itself is larger at one end, with a piece sticking out in front. My main question is if this part sticking out goes in front of the tension discs. It appears to in the manual and seems to make sense as it holds the thread going into the take up lever. Wish I knew how to put a picture on here.
sharig1, October 2014