This sewing machine was inherited from a former seamstress and has worked wonderfully for more than several years. These days, however, the sewing machine has been unusable due to problems with the bobbin and bobbin case.

It started with the needle thread wrapping around the bobbin spool while trying to straight stitch, which eventually caused the machine to jam up and not be able to sew at all. The instruction manual doesn't help at all with troubleshooting, I've reviewed a lot of Qs and As related to this problem, and I have tried solutions ranging from changing to a quality thread to cleaning out the machine (which all proved to be futile).

I removed the bobbin case to check for dirt and loose threads that might have gotten stuck underneath and now am having trouble repositioning it. I have followed the instructions for replacing the bobbin case in the manual, but they aren't very detailed and only guide me to a certain extent. I have tried positioning the bobbin case in different ways, turning the bobbin case to get it to lock in place (manual says it will lock), and checking to make sure it works by turning the handwheel towards me. It eventually jams again and this time there's something in the way of the needle when it goes through the plate because I've seen the needle bend and make a loud, almost-breaking sound. I'm afraid I've made the initial problem worse and I'm all out of ideas--please help!

Thanks,

Elle, November 2008

bobbin will not fill evenly from bottom to top

John, June 2020

How do I tighten the bobbin winder?

The bobbin winder has become very loose in it's space.

Lou, September 2017

Know this question was posed some time ago. But it sounds like 2 problems. I recently acquired a refurbished CG-550 and had similar issues. From the description of the needle hitting something, the needle/hook timing sounds like it is off. This can include an adjustment of the needle drive bar height. After all that is done make sure the hook timing belt has got the proper tension too.

For the top thread getting wound around the bobbin check that the bobbin being used is for drop in bobbin machines (class 66). They are designed to have rounded sides allowing the top thread to slide over them once the hook releases it. I was switching from a Kenmore with a front loading bobbin & found that regular flat bobbins are too tall so when the hook releases the top thread instead of sliding over the bobbin, it gets wound around it.

Hope this is useful.

CK, March 2014

Hello Elle,
Sounds like it needs retiming, e-mail me below and I will attach instructions
Ken

drivewithken@blueyonder.co.uk, November 2008