A while back I was having trouble with my presser foot not wanting to go up or down..... I took Lucy to my local repair am, and he Just needed to tighten a screw...

Someone here told me that the problem was this little screw.... Well... It happened again, and I can't figure out what screw I need to tighten..... I'm totally inept when it comes to things like this..... I need help again...

I'm in the middle of a quilt, and getting ready to quilt the quilt I made for my friend who has MS....

I'm hoping someone can help me..... I really don't want to call Doug again.....

Thanks in advance....