My Kenmore sewing machine timing has gotten off. I am sewing a big upholstery project and it starting bunching thread from the bobbin. The thread is so heavy that I had to put some pressure just to get...
Disassemble your bobbin case which is realy quite easy, clean
thoroughly with a brush and air, paying particular attention to any
rust that may have formed, and any thread that may have weazeled it's
way into small but very incremental areas of your case.
Make sure your needle is not in backwards.The rounded side should be on the outside
. If threading is correct and your tension is properly adjusted , then check the hook for scratches. If you have ever hit the hook with a needle, it will be scarred and will catch the thread every time the upper thread passes around the bobbin case. the hook is the sharp point on the shuttle that holds the bobbin case. If it is scratched, polish it smooth with VERY fine sand paper
Make sure that your thread arm that rises and falls, constantly having tension running through it and that it is in fact staying in place.
Alternate between the metal and plastic bobbins - sometimes the plastic bobbins tend to chip
Dec 04, 2010 |