Question about PfaFF Quilt & Craft Pro 7530
My bobbin thread breaks after sewing about 5 inches. I've checked to make sure I've threaded the machine correctly and the bobbin is installed properly. The sewing machine tension is correct. What can be the problem?
Make sure your bobbin thread is turning clockwise as it sits in the bobbin case. There is a screw on the outside of the bobbin case you can turn with your thumb slightly to adjust tension. If you dangle the case from the thread and give it a light ****, it should move down slightly when doing so-an indicator of good bobbin tension.
Posted on May 20, 2008
Things to check for thread breakage (top or bottom)
1. Good thread in the machine - not hand thread, cheap thread, quilting thread.
2. A burr on the hook - a small nick on the hook can grab and tear threads, however this usually causes the top thread to tear, not the bottom
3. Make sure a new needle is in the machine - one made for the material you are sewing
4. The bobbin must be installed to rotate in the correct direction in your bobbin case
5. And I'll say it anyway - tensions - the primary cause of thread breaking - Remember, there are TWO tensions in a sewing machine, top and bottom. Also, the thread you see on the bottom of the stitch is the top thread, and vice-versa.
Posted on Dec 04, 2007
Once placed into bobbin case, gently pull thread to the left so it comes out underneath of the metal section the screw sits on. This information is for front loading bobbins.
Posted on Mar 30, 2012
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Posted on Jan 02, 2017
pls, the see the figure how bobbibs thread directionhave you seen theres a screw on latch body case of bobins,you can adjust this but mostly this is factory
adjusted,bobbin tension can adjust here.but try to follow the thread direction.set up again the dial setup tension to #3 and stitch to #8 to #12.bobbins slip due to accumulation of thread under
bobbins.hopefully this may help you to continue sewing.
have a nice day,
Posted on Apr 19, 2009
SOURCE: The bobbin thread breaks
if upper thread is breaking
1. needle in backward
2.upper tension to tight-check manual for proper setting
3.needle maybe bent-try rolling needle on flat surface to see if it's bent & if so replace
4.thread may hang on bobbin case-check area for lent or fragments of old threads
5. knotty or cheap thread-always use good quality thread
if lower thread is breaking
1.the most probable cause of lower thread breaking is an inproperly wound bobbin
3.lint built up in case
4. thread catching on a spring or latch
Posted on Jul 29, 2010
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