I have been trying to sew but the thread will not feed nor will the fabric move. I have used both the contraption that is attached to help feed the material smoothly and this doesn't help. Thread keeps on jamming under needle plate. I checked all, have cleaned machine, changed threads, re threaded and changed needles but to no avail. Lease help me as I live in Hong Kong and do not know of a Pfaff dealer here.
Not sure what the problem is but you might try this:
Remove the top thread completely from the machine.
Make sure the machine is cleaned under the needle plate, the hook/bobbin area, the feed dogs, etc.
If your manual instructs oiling, do so as described.
Confirm that the feed dogs are in the raised position.
ALWAYS RAISE the presser foot then rethread the top thread from the beginning.
Verify the thread path is correct.
Confirm the needle is installed correctly (does the flat part face the right direction?). Is it the right needle for your machine.
Set the top tension to the midway point.
Check that the stitch length is set to at least #2.
Re-test your machine. Tweak the top tension until the top and bobbin threads meet in the middle of the fabric.
Some machines have a presser foot pressure adjustment that increases or decreases the amount of pressure the presser foot applies to the fabric and the feed dogs. You may need to increase this pressure.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjUwYDwuKjVAhULwFQKHRLIA1YQFggmMAA&url=http%3A%2F%2Fwww.pfaff.com%2FSiteMedia%2FPFAFF%2FProducts%2FMachines%2Fexpression-line%2FManual%2Fexpression-3-2-4-2-manual-EN.pdf&usg=AFQjCNFFR0YpgCUh8R92wNbPzlJpuzWVNw
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SOURCE: pfaff sewing machine
You don't have the thread in the take up lever or it is not in the tension. Rethread it , Pull the thread through the tension assembly and
test it to make sure the tension is working correctly.
(To do this test, adjust your tension setting to normal or medium or 5 or
something in the middle. Raise the presser foot and pull the thread through the
tension. It should pull easily!! Lower the presser foot and pull the thread. It
should pull noticeably harder.) If it passes this test, continue up through the
take up lever,then down through the thread guides to the needle. Make sure your
needle is fully inserted and turned the correct way. set your tension to 5 and try it.
sewman7
SOURCE: Not picking up the Bobbin thread
I cleaned the machine good with canned air, oiled it. I took out the bobbin case and cleaned it good also. I then noticed the tension screw on the bobbin case was loose, tightened it and the problem was fixed.
SOURCE: Pfaff Expression 3.0 works great in the shop, but
pfaff expression 2.0 works the same. I spend lots of hours with the thread tension and it don;t give me a good stitch. the needle threed ends up making large irregular loops .
SOURCE: Using Pfaff 130 to sew leather, needle won't pick
This machine really isnt quite designed for leather. What has happened is your hook to needle timing is out.
When you sew through thick materials, a
lot of machines have issues where the needle sticks in
the fabric but all the internal parts shift and this causes the hook
to needle timing to go out. The begging signs of this is skipping
stitches. You will have to have you local independent sewing store do
this adjustment for you
Hope that helps,
Chris
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