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Russell H.
Russell H., Electronics and Mechanical Repairman
Category: Small Appliance
Satisfied Customers: 11244
Experience:  Repairing electronic devices for 20+ years, including all aspects of their workings.
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I am working on a bernina 830. I replaced the gear cam but

Customer Question

I am working on a bernina 830. I replaced the gear cam but when I went to test the stitches, it isn't making the stitches right. They are sort of sloppy. How can I adjust?
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: 1 hour! Lol
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: Well I am quite mechanically minded, and have taken a course in machine repair, but when we did it in class it was easy!
Submitted: 1 month ago.
Category: Small Appliance
Customer: replied 1 month ago.
Can you tell me why aChevy person is answering a sewing machine question??
Expert:  Russell H. replied 1 month ago.

Hi, thank you for contacting My name is***** will do my best to provide the right answer to your question. I'm not a Chevy Expert - your question must have been miscategorized at first, it is now in the right category, for an Appliance problem with a sewing machine.

There might be two things wrong, at least:

1. make sure the cams aren't too loose, don't have too much 'play' in them. That might make the stitches sloppy.

2. more likely, though, the stitches may just be owing to the thread tension being too loose. So it might be well to turn up the upper thread tension one or two points, try again a bit, see if that improves the stitch quality. (If the thread starts to tangle on the top, you need to increase the bobbin thread tension adjustment also, to match the upper thread tension. Of course, if either thread breaks, you need to turn down the tension again.)

If the above doesn't help, you might want to photograph the defective stitching, and attach the photo to your Reply... and I will advise you further.