Question about Bernina Activa 140

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Long stitch!! i have an urgent job to fix and I tripped on my cord resulting in my sewing machine falling onto the floor. I took it in to get fixed as it was sewing long stitches long.It went well again for a day but then out of nowhere started to sew in long stitch formation in all stitches.Can any body please help me?.

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  • Anonymous Mar 22, 2014

    While sewing every third stitch is longer than the previous two

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My stitch length selector knob is not working. The knob turns freely and returns to 0-1 when let go of it. Only sewing the tiniest stitches. Now it also only sewing in reverse. Should I take the back off and see if a part is loose, or oil the selector part inside the machine. Broken or gummed up?

Posted on Sep 07, 2015

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If your feeddogs look like they are working properly it could be this...I have seen and corrected a few problems like this in the past. What can happen is your needlebar is stuck in the Basting position. Basting is when even though the machine is turning properly the needlebar will only go down every few revolutions. There is a small pin in the needlebar that disengages when Basting stitch is selected (by an electro-magnet). Usually these will stick from hardly ever or not using it. Old oil gummed up usually but can happen in a drop. The pin will not go back in. Possibly (probably also) the needle bar got turned ever so slightly knocking the hole for the pin slightly off so it can't go back in. In which case the needlebar has to be turned to the correct alignment. This should only be fixed by a trained tech. Everyone... use the basting feature occasionally. We have a saying about those. "Use it or lose it".

Posted on Aug 27, 2007

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Hi teza...I assume that you have decreased your stitch length selector resulting in no change, indicating that the internal stitch length mechanism is either insufficiently lubricated, or truly broken If not broken, you can work the mechanism free by removing your needle, selecting the maximum stitch length and any non-overlock stich pattern, ie. straight or zigzag, fully depress your foot pedal so it runs at maximum speed, and methodically press and release the Reverse button/lever. After a minute of this, hand crank your machine while observing the feed dogs, and changing your stitch length. If your stich length is set to 0, your should observe your feed dogs moving vertically up and down with no back/forward motion, however, increasing as you lengthen your stitch length. Repeat the previous high speed work out until you notice full strokes of your feed dog...good luck my friend

Posted on Aug 02, 2007

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