I have tried rewinding the bobbin, tried the Husqvanara green spools & generic clear spools, taken the bobbin casing/housing apart to completely clean and blow it out, and changed thread types & needles.
SOURCE: picking up bobbin thread
First easy thing to check, are you using the correct length needle.
If this is not the problem then somehow the needle bar has moved and the the needle depth is to high or the timing is wrong..
Unless you really know what you are doing then I am afraid a sewing machine tech needs to reset the needle depth and subsequently the timing.
SOURCE: Picking up the bobbin thread
A few suggestions:
If the basic cleaning and re-threading (above) don't help, your machine(s) may be out of time or have another mechanical issue that will require a repair technician. We recommend a tech trained on your specific brands - they'll be better trained and able to get any repair parts that may be needed.
Hope this helps narrow down your stitching problems.
Happy sewing,
Kim & Linnette
SOURCE: Not picking up the Bobbin thread
I cleaned the machine good with canned air, oiled it. I took out the bobbin case and cleaned it good also. I then noticed the tension screw on the bobbin case was loose, tightened it and the problem was fixed.
SOURCE: husqvarna viking Platinum 775 fabric won't advance
Most of the time the bobbin case gets hung under the feed dogs, take your needle plate off and the bobbin cover there is a gray colored finger with a number 10 torx screw holding it in you can also try a small flat head screw driver, remove that finger and then remove your bobbin clean the hook out and replace the bobbin making sure it seats itself on the hook with the small notch on the bobbin case lining up with a small metall spring on the back right side of the hook area.
SOURCE: Babylock sewing machine, upper thread is bunching
the tension is wronge has the lower bobbin case been unwound and refilled)(check that this is threaded right as well)
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