About my Baby Lock Serger 750 it is all correctly threaded motor operates but wil not stitch ,this has just occurred on my machine ,I have tried everything .any body help please

Use a stitch ripper, it has a point and a blade.

Hopefully you have the manual. It helps to use 4 different colors of thread so you'll be able to differentiate which thread is presenting a problem.

Just thread each thread as though it were the only one, like a sewing machine. Make sure you thread each in the proper order or it will most likely never work. AND ALWAYS RAISE the presser foot when threading and give each thread an extra little tug when going through the tension disk so the thread will seat completely.

Set the tension disks to the midway point, so they are all set about the same. Then test.

If something goes haywire, just bite the bullet, remove ALL the threads and start over threading from the beginning. Believe me, it very seldom works to try to re-thread only one thread...

It took me an entire day to get my new-used serger threaded properly. So don't despair... You might look around for a beginning serger class.

...

# of threads and # of different stitch types?

Cheers,
Kelly
Embroidery Services
San Diego, CA

Which Baby Lock model do you have?

Make sure the loopers underneath are not broken. Are the needles
put in correct? One is suppose to be down and little more than the other- if you have them the same length that is your problem-
check your book

Change needles if they have done a few hours. Ales use ballpoint if seaming stretch fabrics. Also you can get EL 705 needles, which have a longer scarf (groove at back) which helps with the loopers catching the needle thread. Or SUK is the stretch type with this longer scarf Also if you are using cheaper thread cones, try a better quality with smoother finish and consistent weight, this will help too. However if this doesn't resolve issue, your looper timing might need adjustment.

Hi GailKelley,
I have the same model serger. I will make a copy of the stitches and figure out how to get it to you. I recently took my serger out of storage to start some projects. I always struggle threading it but love the look of the stitches when it is set up correctly. Be in touch. MnFriend

You will have to order the manual from a Baby Lock dealer.

This model may have to be threaded in a certain order.

Try raising the presser foot and setting the tensions to zero.

Turn the handwheel so the upper looper (the curved one) is at it's highest position - there may be a mark on the side of the serger where you align the handwheel for this.

Thread the upper looper and then the lower looper and then the needles.

Pull the threads under the presser foot and toward the side of the serger.

Set the tensions back to 4 - 6, lower the presser foot.

Hold onto the thread tails and gently press the power pedal to begin a thread chain before serging fabric.

orange-(5-7)
yellow-(4-6)
green-(2-4)
blue-(2-4)
medium weight, 4 thread

The factory settings are 4, 4, 4, 4, and width at M. Hope this helps.