Bobbin stop how to adjust, check

yea
it has to be at the needle eye every time
check the screws holding the bobbin case on the shaft

1. Replace thread with good thread. (Check by holding to light to see if there is fuzz).
2. Adjust the bobbin tension. The tension on top is set to three and the bobbin tension should be equal to this amount.
3. Replace needle.
4. Check the top tension with tension foot down to see if the thread can move or does it get stuck? If it gets stuck the tension control may need adjusted or cleaned.
5. Pull the bobbin thread above the throat plate and pull on the thread. It must have some tension but not get stuck.
TENSION TENSION TENSION IS THE PROBLEM!

There are a couple of reasons that can cause this.
a. Raise the pressure foot. As you load the top thread give small tugs to check for snags. They must be stopped.
b. Once the top threading is done on top lower the pressure foot. Now, give a tug on the thread. Is the tension really hard or just average? You may need to lower the tension to stop the jamming of the bobbin thread.
c. Clean the bobbin area. Check the bobbin tension and adjust as you need to.
d. Put a drop of oil on the race. (Thing the bobbin case sits on)
e. As the bobbin hook (sharp thing) is rotating does the bobbin case move back and forth a lot. You may need to adjust the bar that is next to the bobbin case so it can't rotate. Usually you will need to move it forward.
SEE INSTRUCTIONS HOW TO ADJUST THE BOBBIN. TENSION OF UPPER AND LOWER THREAD MUST BE RIGHT.

Define "prematurely". Bobbins shouldn't fill to the edge of the bobbin. Are they wound evenly? Uneven winding can cause the winder to stop early.

IF IT STOPPED WORKING AS IN WOULDN'T GO UP OR DOWN WHILE SEWING THIS IS WHAT I THINK. TURN YOUR HAND WHEEL TOWARDS YOU, FORCEFULLY IF NECESSARY. ONCE THE NEEDLE IS ALL THE WAY UP TAKE YOUR BOBBIN AND CARRIER OUT AND CLEAN THIS AREA AND BLOW IT OUT. PUT A DROP OF SEWING MACHINE OIL ON THE RACE WHERE THE CARRIER SITS. FIRST, CHECK THE TENSION BY HANGING THE BOBBIN AND ADJUST THE THREAD UNTIL IT WILL EXTEND A LITTLE WHEN YOU BOUNCE THE BOBBIN THREAD SOFTLY. AFTER YOU HAVE REPLACED THE CARRIER GO AHEAD AND PLACE THE PLATE ON. NOW, RETURN THE BOBBIN AND BE SURE THAT YOU REPLACE IT WITH THE THREAD GOING AWAY FROM THE BOBBIN CUT. NOW, LOAD YOUR TOP THREAD AND SET THE TENSION AT 3. TEST THIS AND ADJUST THE TOP TENSION AS YOU NEED TO. AFTER YOU ARE HAPPY THEN SEW. GOOD RULE...REPLACE YOUR NEEDLE OFTEN. CLEAN YOUR BOBBIN AREA OFTEN.

Hello,

You can take the slide plate off, that your needle goes through and watch to see if the arm grabs the bobbin thread, if you can get it to pick up, than slide scissors or something flat under your needle and manually pull both threads through, replace the plate.

Your bobbin thread could be wound to tight or spliced threads on it, and your tension needs to be adjusted. If your using a pedal, try setting to a slower speed.

I would try a different bobbin and thread it manually as in the step I mentioned, if you can't see the arm grabbing it, you will need to check to see if you have loose threading jammed in youir machine, if this isn't the case and adjusting the tension dosen't help...than you will need to replace the bobbin casing.

Kind regards!

There ought to be a stopper arm that touches the thread and stops the winding.....a small screw nearby ought to be the way to adjust the depth of the arm....use an empty bobbin...loosen the screw, move the arm toward the edge of the bobbin, then re-tighten.
DO NOT UNDO completely or bits may fall into the machine

You need to adjust the tention on you thread bobbin and on the needle....also, check to see if the needle is touching the plate or the foot.

I have had this problems too. Most of the time it is just a simple adjustment and cleaning.

Good Luck

Setting bobbin case tension:
Put wound bobbin in bobbin case. Thread it in case. Hold the thread and carefully let go of the case only holding bobbin thread. The case should NOT move. Quickly let your hand drop 2-3 inches to let the bobbin case free fall for 2-3 inches, the bobbin case should move slightly then stop. It moves because it let’s a little thread off the bobbin. It should then stop .5"- 2" of thread should release. If so, your bobbin case tension is right. If it’s right then begin to look at your top thread tension. Always Always start with a properly adjusted bobbin case, then adjust your top tension accordingly.

The bobbin tension sounds too loose. This will help if you have a bobbin case and not a drop in bobbin. Let me know if you have a drop in bobbin:
Setting bobbin case tension:
Put wound bobbin in bobbin case. Thread it in case. Hold the thread and carefully let go of the case only holding bobbin thread. The case should NOT move. Quickly let your hand drop 2-3 inches to let the bobbin case free fall for 2-3 inches, the bobbin case should move slightly then stop. It moves because it let’s a little thread off the bobbin. It should then stop .5"- 2" of thread should release. If so, your bobbin case tension is right. If it’s right then begin to look at your top thread tension. Always Always start with a properly adjusted bobbin case, then adjust your top tension accordingly.