Every time I wind the bobbin on my Baby Lock Decorator's Choice Sewing Machine (model BLDC) the thread on the bobbin is not wound smoothly. I had it serviced and they said it was fine, no problems. I use the correct bobbins. What could I possibly be doing wrong? So far I haven't had any problems using the bobbins.
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Just off the top of my so-called head, it sounds like something in the bobbin area is not seated correctly. However, I would recommend that you do a search on FB and Yahoo interest groups (also on PSW software); it's members are MOST helpful, and will be glad to work with you to resolve this problem.
here are some suggestions, hope they help
Upper thread breaks
1.needle may be in backwards
Correct needle insertion
Correct needle insertion is mandatory for proper use of sewing machine.
Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine or if using a round needle--the groove in the needle should face away from the shaft.
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
2.upper tension may be to tight--try 3 to 5
3.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
4.thread may be hanging up in bobbin case--check area for loose threads or lint
Lower thread breaks
The most probable cause of lower thread breaking is improperly wound bobbin
1.always start with a empty bobbin
Never wind one color over the other
2.choose thread that is identical in color & type as the one to be used for upper threading
3.wind the bobbin evenly across & in layers
4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin .
TRY THIS, itma not be your model, but should help
Title: How do I wind the bobbin?
Pre-tension disk Bobbin winder shaft Bobbin
Pull up the spool pin as far as possible, and then put a spool of thread on this pin.
Pass the thread around the pre-tension disk.
Make sure that the thread passes under the pre- tension disk.
Pre-tension disk Pulling it in as far as possible
If the spool of thread is not in the right place, the thread may tangle on the spool pin.
Pass the end of the thread through the hole on the bobbin from the inside of the bobbin.
Put the bobbin onto the bobbin winder shaft and slide the bobbin winder shaft to the right.
Turn the bobbin clockwise, by hand, until the spring on the shaft slides into the groove of the bobbin.
Spring on the shaft Groove of the bobbin
Turn on the sewing machine.
While holding the end of the thread, gently press the foot controller or press start/ stop button (for models equipped with the start/stop button) to wind the thread around the bobbin a few times. Then stop the machine.
If the sewing machine is to be operated using the foot controller, connect the foot controller before turning on the machine.
When the foot controller is plugged in, the start/stop button cannot be used to start sewing (only for models equipped with the start/stop button).
Trim the excess thread above the bobbin.
Make sure you follow the instructions carefully. If you do not cut the thread completely, and the bobbin is wound, when the thread runs low it may tangle around the bobbin and cause the needle to break.
Slide the sewing speed controller to the right (to set the speed to fast). (For models equipped with the sewing speed controller.)
Sewing speed controller
Press the foot controller or press start/stop button (for models equipped with the start/stop button) to start.
When the bobbin seems full and begins spinning slowly, take your foot off the foot controller or press start/stop button (for models equipped with the start/stop button).
Cut the thread, slide the bobbin winder shaft to the left and remove the bobbin.
Slide the sewing speed controller back to its original position (for models equipped with the sewing speed controller).
Not winding the bobbin properly may cause the thread tension to loosen, and may break the needle.
Wound evenly Wound poorly
When the sewing machine is started or the handwheel is turned after winding the thread around the bobbin, the machine will make a clicking sound; this is not a malfunction.
The needle bar does not move when you slide the bobbin winding shaft to the right.
I found that the tension setting of 1 worked. The main problem was the machine had thread wound around behind the bobbin. I had to take the plates that are under the foot out, clean out the thread, oil the machine and use a spool of thread that had more weight than the little spool I was trying to use.
hi!there similar bobbins winder in any brand of sewing machine uses mostly in domestic particularly in industrial manufacturing in this fig.check it out if similar to your bobbins any how itmay be helpfull onethe bobbins winder that was a thread and shoul be clockwise rotation when coming out to bobbins case,if you to wound the thread on your bobbins winder, pull threads on spool then wind this in several times 4 to 6 rotation clockwise loop thread on top machine there is bobbins winder disc for tension put winder bobbins on shaft winder near hand wheel push the latch against bobbins winder to fit thead run machine to wind the thread.After hread wound in bobbins winder cut thread and insert winder to bobbin case as shown. insert bobbins to shuttle hook case under needle foot holder lift the cover plate you can see under this is the shuttle hookafter set up was made on bobbins thread,set also the upper loop thead beginning at top of machine start on spool, pull thread and loop to upper disc tension then to the slot portion as in figure insert on lever dial goes to the needle adjust tension to #8 range to #12 for cotton fabrics two layer sewing.