Here are some pictures of a recent carrier service I did on a Bernina 1130. You can see the pins and lint in stuck in the machine where a normal service doesn't reach. Also, this machine had the old style feed block. That was replaced. This kind of service is good to do on Berninas from Models 1000 to 1630. It's not necessary every time, but, if you've never done it, you won't be sorry. The stuff that you see stuck in the feed mechanism is not accessible in a regular service.
