There is thread from the top spool caught inside the machine--I can see it wrapped around something, below the take up lever. The only way to get it out is to take off the top plate and physically get the thread out. So, how do I take off the plate? I've unscrewed the 3 screws I could fine, but it won't come off.
The top is also attached with some clips to the front and back of the machine. The handle also needs to be removed after you loosen up the top. It is held on with some C clips. The best way to remove thread is to separate the needle bar from the upper shaft. This may require some experience to get it back into adjustment. Good luck if you try this on your own.
SOURCE: threading a pfaff creative 7570
Always thread the machine with the presser foot up. This keeps the tension disks open while you are threading. Open the lid on top. Put thread on spool holder. Go directly to your left and down the path on the farthest left. Go all the way to the bottom and bring the thread up on the path closer to the spool. Hook the thread through the metal piece that moves up and down while sewing. It should be in the highest position when threading. Run the thread down and clip into the small metal holder above the needle. Pull down needle threader, draw thread across front of it from left to right and pull through needle.
SOURCE: threads caught in the take up lever wheel
looking at the top left side you should see a hole large enough for a screwdriver and through that hole there is a screw. Loosen the screw and the left side cover should come off.
sewman7
SOURCE: thread or bobbin tension
Thread tension. Beware of adjusting the bobbin screw. Pfaffs maintain their tensions just fine without adjusting the bobbin tension, unless you're using some crazy thick or fine thread. If you must change your bobbin tension, you would be well-advised to buy an extra bobbin case, because re-calibrating your tensions after changing them can be less than fun.
Increase your top tension, and your looping should cease. I normally keep my tension around 4.5. Also make sure you're using a good quality thread, and that there's nothing in the upper tension assemblies. Sometimes a tiny piece of debris can keep the top tension from applying enough tension, so turning the machine off and blowing some canned air in there can help as well.
Good luck,
-R
SOURCE: How to rescrew in the part next to the bobbin winder w/ no thread
Note!!! When you removed the bobbin winder stop,the nut under the cover fell off and it is inside the machine. It is quite possible for this nut to land on a vital circuit board part and short out the expensive circuit board. Take it to be serviced and save yourself a lot of grief.
sewman7
SOURCE: I cant set the tension on my PFAFF 7570 the thread keeps
First make sure your needle is in correctly. Then make sure you are threading the machine correctly especially make sure you thread the take-up lever. Make sure your tension dial is at a 4 to 5. if this does not work, let me know
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