Bernina 950 industrial- sewing along great, then it starts making a little grinding noise and sounds like something hitting, like a ticking noise, all the while still sewing great.

SOURCE: Buttonholing - Bernina 950 (semi-industrial)

This sewing machine looks exactly like the Berninas that I own, although my are not industrial. You just use the dial to make each side of the buttonhole, only having to set the stitch length to super small. The way you make buttonholes is this:

Think of the buttonhole as a square-ish capital O, with the center of the bottom of the O as the point where the button shank will lie when buttoned. Place the marked buttonhole area under the buttonhole foot, with this bottom point directly under the foot, squarely in the center of the 'hole'.
-Turn the dial to 1 and the long left edge will sew in zig zag stitches; stop the machine at the top of the O.
-Then turn the dial to 2 and the top edge of the O will sew; stop the machine after half a dozen stitches.
-Turn the dial to 3 and the right edge will sew; stop the machine at the bottom of the O.
-Turn the dial to 4 and the bottom edge of the O will sew; stop the machine after half a doze stitches.
-Turn the dial to 5 and run half a dozen stitches; this is a line of straight stitches that will 'tie off' the buttonhole.

Try this with a plain piece of fabric. Just put the fabric under the foot and dial away. You'll see how the stitches stitch.

I'll send a copy of instructions from my manual to you if you want. Email me at: [email protected].

Rick

• 202 Answers
• Posted on Jan 21, 2009

SOURCE: Bernina virtaousa 155 makes a puffing noise while sewing

Hi Mary, I suspect that the noise your hearing is the bearing on the belt tensioner. Like a woosh woosh sound. It is quite common and usually one of the first things I look at when servicing a machine like yours. Under the handwheel inside there is a tensioner with a bearing that turns against the belt. Over time this bearing gets build up in it, mostly rubber from the belt. This tensioner needs to be removed, the c-clip popped off and then clean and oil the bearing part and reassemble.
Its really not a task I would suggest doing yourself. A servicing is in order and if you have this done, specify this part, as sometimes it gets skipped in the process.
In the mean time its not really anything to worry about unless that bearing seizes up which you will notice bigger problems.
Good luck

SOURCE: I have a Bernina 950 Industrial bottom stitch loose and pulls out

tighten top thread tension.

Tudor Valean

• 787 Answers
• Posted on Feb 23, 2011

SOURCE: My Bernina 440QE is making

You can try oiling the part you removed.

SOURCE: There is a noise when I sew in the bobbin case

Sounds to me as though you're not pressing the hook retainer back into place properly, or that the spring retainer is not properly engaging with the metal 'pip' on the left-hand-side of the 'U'-shaped hook retainer. You should press the hook retainer back until there is a definite 'click' and you should see the spring clip on the left just move a little bit when it clicks. You definitely shouldn't be able to 'loosen the hook race cover' at all - if you can, the hook will be able to rattle-around in the hook race causing noise and (probably) inconsistent stitch formation. The other thing you mention is that you 'cleaned-out' the hook race, but you didn't mention oiling it. If your machine has got the lightweight hook/shuttle that is black plastic with a metal hook around the outside, Bernina claims these dont need oiling, however, I've found that a small drop of oil will improve the performance of these machines immensely (note a SMALL drop of oil !). If you have an all-metal hook, you most-definitely need to oil it after cleaning ... lack of oil is probably the biggest cause of noise in machines of this type.