|I thought I needed to open the whole case, but I just needed to open the bottom.|
I learned that when you think your machine is broken, it probably just needs cleaning and oiling. It is unlikely that a part is broken, but it can happen. The part that would break most often is the belt, or a plastic gear.
I learned about the timing of the machine and that is a simple adjustment of a screw lining up the needle and the hook, so that the hook is grabbing the thread after the needle is leaving the race. In fact, most new machines have a timing notch or lines marking the timing on the needle bar so that you can see the position the needle should be in as it's leaving the race.
My problem wasn't the timing, but I had a gear that needed cleaning near the race - there was a lot of cotton fluff that I blew out with a can of air. Then I removed the old grease with WD-40 and cleaned the gear really well and then I reoiled the gears and the race and it's working great, now.
If you ever need help with your machine, just let me know, I may be able to troubleshoot with you. Linking up with crazy mom quilts.
Now, make something - but clean your machine first!