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Re: bobbin thread wont pick up
Be sure needle is inserted correctly with the flat side in the proper position. Rethread the machine and try again. If it still won't work you have a timing problem which requires a technician or a good mechanic. sewman7
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Install a brand new needle. A bent/dull/damaged needle sometimes will not pick up bobbin thread.
Check that the needle is installed facing the correct direction.
Also check that the bobbin is wound smoothly, the bobbin is turning the correct direction in the bobbin case, and the bobbin tension is threaded correctly.
If it still will not pick up the bobbin thread, there is most likely a timing issue, ie the needle is arriving at the wrong time to intercept the bobbin thread. Search the internet for sewing machine timing discussions or take it for service.
Try a brand new needle. A dull or bent needle will frequently not pick up bobbin thread. Also, be sure you are using a needle type that is suitable for the thread and fabric you are sewing, ie if you are sewing woven fabric, use a sharp needle, not a ball point or jersey needle. All About Needles
If you are still experiencing problems, it could be a timing issue. Take it for service.
The easiest thing to try is replace the needle with a brand-new needle. If the needle is bent or damaged, it may not be engaging with the bobbin thread correctly. Also make sure it is installed with the flat side facing the correct direction. Be sure to Raise the presser foot before threading the upper thread so it will seat properly in the tension disks.
Generally, this is because the needle
is inserted wrong or because it's bent. In the first case, the top
of the needle (called the shank) has a flat side-this has to be
inserted so it faces the back or away from you. In the second
case, when a bent needle stops the top thread from picking up the
bobbin thread. Even if you think your needle is fine, change it to
see if this solves the problem.
if your machine's needle threads from front to back, make sure that the flat part of the needle shank points to the rear of the machine. If it threads from left to right, the flat side should face right, etc.