Question about Bernina Sewing Machines
I recently purchased a Bernina 830 Record. I've opened it up and cleaned what I can and oiled the hook.
It seems to have 2 problems.
Firstly, I cannot release the inner wheel on the handwheel when winding a bobbin on. It is very tightly secured and will not budge. The bobbin still winds, but annoyingly the needle shaft moves up and down at the same time.
Secondly, when buttonholing, positions 1,2,3 + 4 are fine, but when I turn the knob to position 5, the top thread breaks and I notice that the left side of the needle seems to be shearing off slightly.
any advice would be greatly received.
SOURCE: Bernina 830 stuck
Okay, my first take—because it fills bobbins "just fine"—is that the needle bar may be loose. You didn't specify what the service was for: was it just a clean and lube, or did you have a problem? Even with just a clean and lube, the needle-bar height may have needed adjusting, and the tech may not have tightened it securely. Does the needle bar move at all? even just a quick **** or two? If it acts like it is trying to move, but doesn't, that is probably the problem.
Now, here's the bad news (always seems to be some of that with these kinds of things, eh?): That needle-bar height is critical, and it's not something I can just tell you how to do here. The second bit of bad news is that the problem wasn't discovered for a year, so any service warranty is long expired, by now (unless the owner or manager of the store is your bosom bud, or, you are one of his/her best customers).
The good news is, if the shop is reputable, you could return it to them, explain what happened, and ask how much they would charge just to adjust and secure that needle bar (although the machine could probably use some more oil, by now—because it has just been sitting, which is harder on them than if you use them regularly). If they are like the shop I worked for, they will be glad to give you a slightly discounted rate to preserve their reputation, and hopefully, your business relationship with them. They may even throw some oil on it for the same price.
One more bit of good news, the Bernina 830 is one fine sewing machine. It is worth fixing, if any machine is.
Hope this is helpful, and happy sewing!
Posted on Feb 06, 2009
Basically it is a matter of a stuck part. Flip open the top by prying up on the front or ends of the lid. You already noticed the hinges on the back. When you get it open, exercise the right hand lever on top (marked ZZ at bottom and 1-20 at top. If you look just to the right of this lever against the back wall you will see that it moves a little part back and forth into triangle shaped grooves. The part is not going completely into the grooves so drop some oil in there and exercise it a few more times, using your fingers if necessary to make the part move into the triangle grooves at the front and back. After a while it will loosen up where it should operate by itself smoothly . Hope this helps, I know it will.
Posted on Feb 13, 2009
there is a board inside the foot pedal that goes out sometimes you can check this by flipping the foot pedal upside down and at the top right there is a small hole where you can adjust the speed with a flat head screwdriver but be gentle it breaks easy, if its out you can take it to a bernina dealer and they might have a reapired one or they can send yours off for repair since that part is repair only
Posted on Jun 26, 2009
Sounds like you need to adjust the tension. Probably a good idea to oil this older machine before you adjust. Also look for and clean out any lint or debris in bobbin case and around foot area.
Posted on Aug 29, 2009
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