Here is a youtube video on how to clean a handcrank sewing machine.
I have also been told to always clean your machine after every quilt and to change your needle after every 8 hours of sewing. Boy am I bad about both of those things!
Here are pictures of all of my sewing machines!
Yes, thast's right, you counted 7! But, one is scary (White), and one is on hold for a friend. It's brand new, I plugged it in to give it a test run, and it sewed fine for 5 minutes but the feed dogs somehow dropped down just a tiny bit. I tried the lever to drop them, and they dropped more, but when I tried to bring them back up, they didn't come up all the way. I've had it for a year, I'm not sure what to do. So, I only have 5 working machines.