My LS2125 was working just fine, then, right in the middle of making Christmas blankets, it quit picking up the bobbin thread. #1 - I know virtually nothing about sewing, so forgive me if I don't know the proper terminology. Anyway, I cleaned out the bobbin holder & oiled everything. I replaced the needle also. All is does is make holes in the material & won't "hook-up" with the bobbin thread. What do I do??? thanks....
I recently fixed my wife maching with the same problem. I found that the screw had come loose that holds the linkage together that rotates the bobbin holder. I was fortunate enough to notice the screw while looking at the machine. To replace it requires taking both the front and back covers off of the frame since the bobbin holder linkage is in the rear behind the needle area. Be careful to insure that the plastic toothed "rail" that runs the bobbin holder is positioned properly or it may break off a tooth. Once I replaced the screw and put the machine back together, it picked up the thread with no problem.
Hope this helps.
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CHECK THESE FIRST::
MAKE SURE NEEDLE IS INSERTED THE RIGHT DIRECTION. LOOK AT YOUR INSTRUCTION BOOK.
MAKE SURE INSERTED IS TOTALLY INSERTED.
CHECK TO SEE IF THE BOBBIN THREAD IS STUCK. ALSO, ENOUGH LENGTH OF BOBBIN LENGTH EXTENDED TO ALLOW THE NEEDLE TO PULL IT UPWARDS.
MAKE SURE THE BOBBIN THREAD IS INSERTED THE RIGHT DIRECTION AND SET WITH CORRECT TENSION.
CHECK TOP NEEDLE TENSION TO INSURE THERE IS TENSION ENOUGH TO PULL THE BOBBIN THREAD ABOVE THE THROAT.
IF THESE DON'T WORK YOU MAY NEED TO GO TO YOUR LOCAL REPLAIRMAN.
here are some suggestions make sure the needle is the right one for the fabric being sewed make sure the needle is all the way up into the needle holder check to see if the top thread has come off the thread take up lever try a different bobbin if the machine is a front or side loading bobbin make sure the bobbin is inserted correctly into the bobbin case and that the bobbin case is inserted correctly into the machine turn the bobbin the opposite way in the bobbin case also clean under the needle plate and in the bobbin area for lint it's a possibility that the machine could have a timing problem and needs to be checked
you have to make sure the bobbin thread is positioned right in the middle. When the needle comes down (into the bobbin compartment), you can peer into the bobbin compartment and see a loop of thread (coming out of the needle). You want to catch that bobbin (thread) in the loop of thread (that runs from the needle).
Don't go directly from the thread spool to the bobbin.
You have to go via the thread quide, (near the end of the head at left side) and under the small roller.
Pass your thread to the bobbin turn your thread 3 turns to the right, clockwise, then pass the end of the thread, under the coming thread and give it another 3 turns to the right. For better results, always remove old thread from bobbin before filling it up.
Push the thread winder lever to lock the bobbin.
Start winding slowly. If the thread is loading in the down position,
put your finger under the thread between the bobbin and the the thread quide, untill you see that the thread is feeding evenly.