On my elna 6004, why is my ziz zag stitch loose and sloppy?? I have read thread it, cleaned feed dog out, changed threads, changed needles..?
top tension dial set too low
top tension dial not working at all
top thread not seated into top tension discs
top thread hasn't been threaded up correctly, missing out the tension discs or take up lever
Most likely your top tension device is either set too low, or gunked up and not working right or has actually failed. Can you access the tension discs? If so, turn dial to zero and 'floss' between the discs with the selvage edge of a clean piece of waste cotton fabric and see if any black stuff comes out. If so, continue until it comes out clean. Turn back to 5 or the marked normal setting.
Now thread up again from top spool down to tension, through take up lever, then down to the eyelet just above the needle. Lower the pressure foot to engage tension then pull on the thread downwards. Is it hard to pull? If not, then the tension dial is faulty and you'll need to get the machine serviced.
If this feels firm and hard to pull, then take a look at the lower thread tension but this shouldn't normally need any altering (unless you've adjusted it previously for some reason and not reset it to normal setting). Check thread is fully into the tension spring, bobbin is in the right way and bobbin case is in fully in the correct position.
If you look at the zig zag stitiching you've done, can you identify if the loose thread is the top one? If you use two different coloured threads for troubleshooting, this often makes it a bit easier to see what's happening, just make sure they are the same weight and brand of thread if you do this.
I hope this helps you to identify the problem and fix it. But if you suspect that the top thread tension device is just not tensioning the thread even if you turn the dial right up to 7, then you'll need to get the machine serviced as the dial could well be faulting.
Sep 26, 2011 |
Elna 2007 Mechanical Sewing Machine