If your machine is working fine, then no, don’t send it in. I have two “B” models that are over 30 years old. They are still smooth and tight. I’ve taken them a part to clean them and oil them.
If your machine is working fine, then no, don’t send it in. I have two “B” models that are over 30 years old. They are still smooth and tight. I’ve taken them a part to clean them and oil them.