Sandi's Sewing Connection
....YOUR connection to creative sewing!

             

 

Sewing Machine Top And Bottom Tension Problems




    
View Larger Image       View Larger Image

These pictures show thread and lint caught in the top tension discs.  The top tension discs "squeeze" the top thread to provide top tension and if thread or lint is caught between the discs, the discs are held apart and cannot provide the proper tension to the top thread.  Sometimes the thread or lint can be removed by "flossing" the tension discs with a heavy thread such as gimp cord or topstitching thread dipped in rubbing alcohol.  However, sometimes the machine covers must be removed to clean the discs properly.




         
View Larger Image        View Larger Image 

This example of lint caught in the top tensions discs is different from the other photos shown.  In this instance, there were no thread remnants caught, this was only lint.  However, this lint prevented the top tension discs from "squeezing" the top thread properly to create the correct top tension for proper stitch quality.  This lint was caused by using cheap poor quality thread.  Yes there is a reason that some thread is more expensive.  Cheap thread creates more lint that collects in your machine and can cause problems.  If you can hold your thread up to the light and you can see fuzzy whiskers on the thread, it will generate more lint and can cause this type of problem.






View Larger Image

This is another example of thread and lint caught in the top tension discs.





View Larger Image

Here is another example of thread and lint caught in the top tension discs.





View Larger Image

Here is another example of thread and lint caught in the top tension discs.





View Larger Imageg

This shows thread that was caught in the top tension discs of a machine.  The gold thread above the needle linkage goes into the tensions discs and there were also had several clumps of lint that were in the tension discs.  This affected the top tension on the machine.




 
                  
View Larger Image       View Larger Image        View Larger Image        View Larger Image        View Larger Image


   
View Larger Image       View Larger Image

Thread and lint can get caught under the tension spring on the bobbin case also.  The sequence of pictures above show a bobbin case that had a small piece of thread caught under the tension spring.  Because of that, there was no bobbin tension.  By inserting a needle under the tension spring and moving the needle to the end of the spring, the piece of thread was removed.  However, doing this might affect the tension setting and the tension screw might have to be tightened to restore the proper setting.  A front loading bobbin can be easily removed to remove the thread while the bobbin case on many machines with drop in bobbins cannot be easily removed by the customer.





           
View Larger Image       View Larger Image        View Larger Image       View Larger Image

The sequence of pictures above show another example of thread caught under the bobbin case thread tension spring and using a needle to remove it.