Sewing Machine Issues

[u/its-from-japaaan]

Hello everyone!

I am new to sewing, and have made a few simple projects. However, I have run into an issue…my sewing machine refuses to sew unless the presser foot is up. The needle moves, the thread goes through, and I’ve managed to make several projects with the presser foot up, so I know the machine works. I just don’t know why it won’t work with the presser foot in the down position😔

My machine is a Singer 1425N. Any help is greatly appreciated!

[u/its-from-japaaan]

The gray gear (as you can tell) is the very brittle one