How to adjust Feed Dog for sewing leather on Jack F4 industrial sewing machine for beginners

If you have any questions, write them below in the comments and I will try my best to answer.

When we sew leather on any industrial sewing machine, we face the problem of chewing leather from lower seam. That is because of the feed dog's improper setting. In this video I have tried to show you how to adjust the feed dog in most of the sewing machines. I hope it will be helpful for most of you especially for beginners.