Question about Bernina Artista 640E Sewing, Quilting and Embroidery Machine with Embroidery Module
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Posted on Jun 05, 2015
Sounds like the computer is having trouble responding to the commands it's given, may need to be serviced.
Posted on Jun 05, 2015
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Posted on Jan 02, 2017
There are TWO buttons on the machine that have the little u-turn on them. Look for the other one. That is the one that makes the second half of the buttonhole. Look in the owner's manual, it may tell you where it is on your machine. I spent a long time swearing at my machine before I figured out that the reverse is not the only button with the u-turn arrow. The manual is not clear on this. Why they use the same symbol twice is beyond me. Mine is on the front of the machine, down by the needle. Hope this helps.
Posted on May 23, 2008
It's possible that the upper thread sensor has become disconnected from the check spring in the takeup mechanism. This also results in poor or inconsistent thread formation and sometimes a bit of a ticking noise on the upward stroke of the takeup arm. It's also possible that the optical sensor that is attached to the back of the front panel, just above the reversing button, has become obstructed by fluff. In either case it's best to have it checked-out by a Bernina service agent although it is just-about possible to re-position the sensor flag on the check spring without removing the front panel, if this is the problem. If you remove the head cover (T20 screw) and look at the bottom of the metal curved takeup arm cover, you should see what appears to be a large flat-bladed screw with a coil spring around it - this is the check spring. If you follow the end of the spring, you'll see it emerges into the bottom of the takeup arm cover and forms a small loop. If you thread-up the machine as far as the takeup arm and gently pull upwards on both ends of the thread, you'll see that this pulls the spring upwards too. Whilst looking at this, look carefully at the section of the spring between the main coil and the thread loop - it should run through a groove in a small black plastic part - if not, the check spring has come off the sensor flag. This often happens if you pull the upper thread 'backwards' through the machine after finishing sewing, or when changing the upper thread. You should always cut the thread where it comes off the spool and pull the waste through the machine in the normal direction. If you can see the end of the sensor flag, it may be possible to reposition the check spring through the groove, but its not easy and really needs to be done with the front panel off, which is a technicians job and not for the amateur. Dont forget that you can disable the upper thread sensor through the set-up menu, but this wont necessarily overcome problems with stitch formation.
Posted on Nov 14, 2011
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