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Bottom thread will not catch

I have pulled the machine open and oiled everything and it still will not catch the thread on the shuttle around the bobbin. I have tried different needles and material and still nothing. The bottom thread will not catch for anything. I tried just sewing without catching it first and it still will not catch. Help. I have tried everthing to get the needle to catch bobbin thread. I have tried changing needles, re doing bobbin taking bobbin out and putting back in.

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Re: Bottom thread will not catch

Unplug the machine and remove the needle plate so that the bobbin case if fully exposed. Lift out the bobbin case and the cup that it sets in will be visible. Locate the "hook" on this cup. It is a finger with a sharp point at the upper edge of the cup. The hook is what grabs the thread from the needle while sewing.

  • Thread the needle.
  • Turn the handwheel by hand.
  • Watch the hook as it approaches the needle from right to left.
If the hook passes by the needle AFTER the eye of the needle is above it, you timing has slipped and the machine must be taken in for repair.
If the hook catches the thread from the needle, put everything back together and try threading again.

Posted on Nov 14, 2007

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Re: Bottom thread will not catch

I was having the same problem and finally took my machine into the repair shop. When you have tried everything and nothing works, the problem is usually that the timing is off. So when all else fails, I do suggest having the timing checked, most service stores will "troubleshoot" free of charge.
I also just wanted to let you know that even the most seasoned sewers usually cannot set the timing on their own. So don't feel bad!

Posted on Jan 03, 2008

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Remove bobbin, presser foot, needle. Tip machine back on towel gently. Unscrew plate--don't lose screws! Do not service in presence of children and curious pets. Put foot pedal next to you on tabletop. Use Zoom Sewing Machine oil. Any part MOVING that are NOT gears get one drop oil. Any DRY ONLY gears get dab of Singer sewing machine lubricant. Replace screws. Secure screws. Open left front compartment & one drop oil @ top of needle bar. Open race shuttle (where bobbin case fits in). One-half drop oil of on oscillating hook (bottom left - hand corner...smear that oil around! Insert NEW needle all way UP in needle bar groove, flat needle shank toward back. Turn handwheel towards you and raise. Raise presser foot so that threading locates all tension slots a's you pull thread TAUT from spool to each tension slot and left to right through silver, metal take-up lever, and down to tension bracket, pass needle, then pull 6" thread towards you and thread from FRONT to BACK of needle. Place bobbin into case and "thread" it. Set presser foot on DOWN position. Turn handwh towards you, dipping needle into needle plate. Make loop with bobbin thread, pull towards you. Place a good 7" underneath presser foot (both threads). Let machine RUN on 24" scrap to distrubute oil/lube. That's it! Jimmy

Apr 05, 2012 | Sewing Machines

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Why does the shuttle hook grab the spool thread instead of the bobbin thread? It wraps the thread around the bobbin and binds the machine up.

The shuttle hook is suppose to hook the needle (spool) thread and loops it around the bobbin case to form the lock stitch. Is it possible that something was adjusted without proper clearances as to allow the thread looping around the bobbin case to do so without catching up where it should pass through freely?

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The bobbin thread will not catch with the top thread i have cleaned and oiled the machine any suggestions

Here is a list of things to check, don't think there ok check and make certain there right: Right Needle length, needle in all the way, needle in with the scarf facing the right way. The way a sewing machine works is the needle passes through the material bringing the thread down to the shuttle, when the needle begins to travel back up it creats a hoop on the side of the needle at that time the hook should pass and catch that hoop carriing the top thread around the shuttle creating a lock stitch. if it is not all happening at the right time it ain't happenin'.

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1 Answer

Thread balls up under plate I think it is the shuttle tension, but I havent used it in years,it worked fine then. I did oil the area under the shuttle to se if that worked. It still balls up Bernini...

We have about 100 of these machines in the schools around out city. so I know a bit about the 1008/ 1020 Bernina machines.
Sometimes the tension discs get sticky if you have not used the machine in some time.
raise the presser foot then check to see if the disc in the center of the top tension is sort of loose as you try to move it slightly/
-be sure the top thread is securly in the tension when you thread the machine. after putting hte thread through the top tension, pull on it slightly while the presser foot is in the top tension and it should be loose.
now lower the presser foot and now pull on the thread it should now have some resistance.

Now check the bottom tension on the bobbin case and be sure the bobbin rotates easily when you put in the bobbin whilst putting the thread under the bobbin case tension spring. The tension at this point shold be fairly easy to pull from the bobbin case.

if this still does not help,
remove the shuttle/hook (see instrutions at bact of instruction book. check to see if there are any nicks in the shuttle. if there is then use emery cloth of some fine crocus cloth to refinish and make the pointed part of the shuttle very smooth.
That should do it, if not contact me at

Wayne Buss

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Raise the needle to it's highest position.

Lift the lever on the back of the bobbin case and hold it open as you insert the case into the shuttle; arm on the case pointing up. You may have to turn a bit to the left or right - it will click when in place.

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