This is a really good tutorial. I had to go to your blog to see the pics though. Those here are just too big.
Now I have a couple questions for you.
A: Is it absolutely necessary to remove the feed dogs?
B: Once the feed dogs are out, is there any possibility of them going back in out of adjustment?
I've got an early 66-4, four other 66s, 2 99s and a Japanese machine I've got to do this too. I'm not looking forward to removing the feed dogs if I can get away without doing it.
Thanks for posting this.
Joe