Question about Sewing Machines
Possible problems are lint between the tension discs. You can clean this with a business card. If the tension discs are not meeting together you must take the machine apart to adjust the spring tension. If all the tension discs not closing. If that is the case your presser foot tension release lever may be stuck.
Posted on Oct 13, 2013
Testimonial: "Thanks Joe, I will try to clean between the tension dials as suggested, if no luck will resort to taking it to a technician. Cheers."
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Posted on Jan 02, 2017
Make sure the chain stitch thread is threaded exactly as it should be, make doubly sure the thread comes off the bobbin vertically and runs through all eyes smoothly. Any faults in the threading causes extra tension at the needle despite what the tension is set on.
If this is not the cause then the needle depth and the looper timing needs checking.
Posted on Mar 30, 2008
SOURCE: My Bernina 930's lower tension
Hi - you might have a dirty bobbin case, or need a new one. IAfter awhile, little teeny dust bunnies can collect in your bobbin case and cause your bobbin tension to go wonky, especially if you use cotton thread. If you happen to have an extra bobbin case, try using the new bobbin case to see if that solves the problem. Otherwise.....
Hope this helps, Ginny
Posted on Jan 31, 2009
If you have pattern dials set correctly then I might guess that one or more sets may have been missed when the thread was being set up in the machine. most of these models show either arrows or numbers for each or way the thread needs to be routed.
Posted on Apr 26, 2009
Look to see if the 'check spring" is still there, and not broken.
If the tesion nob can be truned without any feeling of tension, then maybe the screw that attaches the 'tension housing' to the stem has loosen or broken.
Posted on May 10, 2009
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