Sonata -1 machine fixed-I did it!!!!
05-11-2021, 09:16 AM
#1
Junior Member
Thread Starter
Join Date: Feb 2021
Location: Potsdam, NY
Posts: 179
Sonata -1 machine fixed-I did it!!!!
Hello,
Well I have fixed one of the 2 Sonata 6610 machines that I had posted about before. After several well intended people told me to forget trying to fix it, I decided to try myself. I am a Chemist and studied physics as well. My Grandfather was a mechanical engineer, and used to call me his little engineer. Although he passed many many years ago, I could not get his voice out of my head.
The fix: First after struggling (like many youtube videos said) to get the cover off, I cleaned it out gently by blowing, and oiled the heck out of everything. Ran the mechanics well until it was running smooth.
Second: tension issue/bird nesting-----After making sure that the motor and all parts was running smoothly--nothing broken, no plastic parts were chipped etc, I turned to the bobbin area. There is a metal plate with a little notch that had 3 screws in it. It sat under the bobbin area cover, and the bobbin casing slides under it. I have no idea what the real name is for it. The plate slid left to right, moving how much it pressed on the bobbin casing. I had to slide this plate to just the right position to keep the bobbin casing from bouncing around, but also not to tight to prevent it from spinning. I am now sure that this was the cause of the bird nesting.
One down one to go!!!! New thread about that second Sonata issue to follow.
Well I have fixed one of the 2 Sonata 6610 machines that I had posted about before. After several well intended people told me to forget trying to fix it, I decided to try myself. I am a Chemist and studied physics as well. My Grandfather was a mechanical engineer, and used to call me his little engineer. Although he passed many many years ago, I could not get his voice out of my head.
The fix: First after struggling (like many youtube videos said) to get the cover off, I cleaned it out gently by blowing, and oiled the heck out of everything. Ran the mechanics well until it was running smooth.
Second: tension issue/bird nesting-----After making sure that the motor and all parts was running smoothly--nothing broken, no plastic parts were chipped etc, I turned to the bobbin area. There is a metal plate with a little notch that had 3 screws in it. It sat under the bobbin area cover, and the bobbin casing slides under it. I have no idea what the real name is for it. The plate slid left to right, moving how much it pressed on the bobbin casing. I had to slide this plate to just the right position to keep the bobbin casing from bouncing around, but also not to tight to prevent it from spinning. I am now sure that this was the cause of the bird nesting.
One down one to go!!!! New thread about that second Sonata issue to follow.
05-11-2021, 08:42 PM
#6
Super Member
Join Date: Mar 2015
Location: Denver, CO
Posts: 4,283
... There is a metal plate with a little notch that had 3 screws in it. It sat under the bobbin area cover, and the bobbin casing slides under it. I have no idea what the real name is for it. The plate slid left to right, moving how much it pressed on the bobbin casing. I had to slide this plate to just the right position to keep the bobbin casing from bouncing around, but also not to tight to prevent it from spinning. I am now sure that this was the cause of the bird nesting....
I didn't realize the bobbin case had three screws, generally I thought it was only 2. I don't remember quite what my niece's machine bobbin case holder was like. If your manual is like the one I downloaded from Singer, It looks like it would be chapter 9 of the manual "Caring for Your Machine" that tells how to remove and replace the bobbin case.
Janey - Neat people never make the exciting discoveries I do.
