Bernina 830 users

Old 05-19-2020, 07:21 PM
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Default Bernina 830 users

Hello,
I picked up a Bernina 830 today. Itís been sitting unused for awhile. Iím sure it needs a good oiling but how do I go about that? I want to make sure I do everything right. The wheel seems a little tight. Iíve not plugged it in yet or run it. It came in a beautiful large cabinet, with manual and the little red Bernina box full of feet. I know nothing about these machines but new the newer models are very popular, so took a chance on this one. Iíd love any suggestions. Thanks in advance.
thanks!
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Old 05-19-2020, 08:07 PM
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Good for you... in 1971 I purchased a Brand new 830 portable with the red case...still using it it is a workhorse... be sure to read you manual and oil and grease as illustrated and put in a new needle. Check the wheel it loosens to fill bobbin. May need a drop of oil if it has been sitting awhile. Thinking you will be happy with your machine. 👍
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Old 05-20-2020, 04:26 AM
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Originally Posted by judy363905 View Post
Good for you... in 1971 I purchased a Brand new 830 portable with the red case...still using it it is a workhorse... be sure to read you manual and oil and grease as illustrated and put in a new needle. Check the wheel it loosens to fill bobbin. May need a drop of oil if it has been sitting awhile. Thinking you will be happy with your machine. 👍
thanks. The book only talked about oiling around the bobbin but the wheel feels tight. Does the cover come off to oil inside like other vintage machine? That usually frees the wheel?
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Old 05-21-2020, 07:30 AM
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Anyone else? I tried to sew with it and itís not making nice stitches for a straight stitch? I oiled everything I saw that moved. It was in a table that went down on a slate. Do you think itís possible the bouncy ride home jarred something? The wheel has not gotten any looser since oiling moving parts. The belts to me look in fine shape.
it seems like itís possible the wheel sticks in a certain place more than others and I read that can be a bad sign but not 100 percent sure. Not sure I wanna invest anymore money into it.
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Old 05-21-2020, 08:50 AM
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There's more than one 830 model from Bernina. If yours is the "Record" model from the 70's it's worth putting a little "shop time" in it. The resale is fantastic on these.

There are plenty of maintenance videos out there that cover oiling. The top flips up, the nose cover swings out, the free arm can be exposed, and the drive end and motor covers come off as well as the bottom cover and motor cover. The spool stand and back cover can be removed also, all exposing oiling points. On some of the models the oiling points were highlighted with red paint. Mine isn't painted but the oil points are obvious. The manual does a fair job of describing this.

So... This machine doesn't spin as freely by turning the handwheel as a lot of machines out there. It's the belt drive system that creates some drag. Also there are perceived "tight" spots in the rotation. This is common in oscillating hook models, but when well maintained the difference is sometimes hard to feel.

These really are wonderful sewers, and with the resale being what it is, it's worth putting some money into if you can't do it yourself.
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Old 05-21-2020, 09:06 AM
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Originally Posted by oldmanquilts View Post
There's more than one 830 model from Bernina. If yours is the "Record" model from the 70's it's worth putting a little "shop time" in it. The resale is fantastic on these.

There are plenty of maintenance videos out there that cover oiling. The top flips up, the nose cover swings out, the free arm can be exposed, and the drive end and motor covers come off as well as the bottom cover and motor cover. The spool stand and back cover can be removed also, all exposing oiling points. On some of the models the oiling points were highlighted with red paint. Mine isn't painted but the oil points are obvious. The manual does a fair job of describing this.

So... This machine doesn't spin as freely by turning the handwheel as a lot of machines out there. It's the belt drive system that creates some drag. Also there are perceived "tight" spots in the rotation. This is common in oscillating hook models, but when well maintained the difference is sometimes hard to feel.

These really are wonderful sewers, and with the resale being what it is, it's worth putting some money into if you can't do it yourself.

thank you so much. This was very helpful. So maybe mine is okay handwheel wise but just sewing a little rough.

Itís an older model. I will try to attach photos here. Iím working on it right now. It came in this nice cabinet.

mine doesnít have the red paint either. So there are oiling points under where the spools go?




Attached Thumbnails a6ee275a-9aaf-4522-b64d-97c518528ea1.jpeg   bf0d3423-7152-4b8e-b88e-ef7377ae20eb.jpeg  
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Old 05-21-2020, 12:27 PM
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This is what Iím getting for my straight stitch. Would anyone be willing to post photos of theirs? It doesnít match up to the straightness of the sample that was in the presser foot. It looks a little worse in person than the photos show.

any suggestions?
Attached Thumbnails 1417ab5d-f3a2-4bde-98ce-d83e95da720d.jpeg   13acccc7-5dfb-492f-8746-168c2cc7889a.jpeg  
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Old 05-21-2020, 08:47 PM
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That Bernina 830 is my favorite machine to service! To check the tensions, put a dark color thread in the top and a light color thread in the bobbin, then set the stitch width on 3 and the stitch length on 2. Sew with it and see if the top thread pulls to the bottom or the bobbin thread pulls to the top.

The fabric you're sewing on can create a crooked stitch. If you use a finer fabric and a smaller stitch length, the stitches will look straighter.

The 830 came with 2 different foot controls. If your foot control has a potentiometer on the bottom (looks like a small, black plastic screw), you can adjust it to get smoother power to the machine. If it stutters, no matter where you adjust the potentiometer, there's a capacitor that can be replaced to fix the problem.

If your machine doesn't have the potentiometer, you've got a carbon pile foot control. If there's a capacitor in that foot control, it can be a fire hazzard. Your Bernina dealer will have a free part (thermal switch) to replace that with.

You can usually check the motor brushes on an 830 without taking the motor out. Some models have a plug on top of the motor housing that pops out, then you twist the plastic screw, and the motor brush will pop out. Other models you have to remove the motor housing. You can clean the armature or commutator if it looks black, with a folded bit of sandpaper, while running the motor.

There are lots of little tweaks you can do on this machine to make it so fabulous! Needle/hook distance, thread passage, polish the hook, adjust the feed dog height. You have a great machine!
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Old 05-22-2020, 03:49 AM
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I have had this machine for 40 years. I take it to an authorized Bernina repairman to have it cleaned and oiled. I would never part with it!
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Old 05-22-2020, 03:55 AM
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Originally Posted by quiltedsunshine View Post
That Bernina 830 is my favorite machine to service! To check the tensions, put a dark color thread in the top and a light color thread in the bobbin, then set the stitch width on 3 and the stitch length on 2. Sew with it and see if the top thread pulls to the bottom or the bobbin thread pulls to the top.

The fabric you're sewing on can create a crooked stitch. If you use a finer fabric and a smaller stitch length, the stitches will look straighter.

The 830 came with 2 different foot controls. If your foot control has a potentiometer on the bottom (looks like a small, black plastic screw), you can adjust it to get smoother power to the machine. If it stutters, no matter where you adjust the potentiometer, there's a capacitor that can be replaced to fix the problem.

If your machine doesn't have the potentiometer, you've got a carbon pile foot control. If there's a capacitor in that foot control, it can be a fire hazzard. Your Bernina dealer will have a free part (thermal switch) to replace that with.

You can usually check the motor brushes on an 830 without taking the motor out. Some models have a plug on top of the motor housing that pops out, then you twist the plastic screw, and the motor brush will pop out. Other models you have to remove the motor housing. You can clean the armature or commutator if it looks black, with a folded bit of sandpaper, while running the motor.

There are lots of little tweaks you can do on this machine to make it so fabulous! Needle/hook distance, thread passage, polish the hook, adjust the feed dog height. You have a great machine!
Thanks. I will try what you've said when I get home. I've sewed on all types of fabric and even beside the stitch sample. All same look. This was set at 2. But if I change the width it zigzags it. Only in zero is it straight.

I have the adjustable pedal as I changed the speed so it runs smooth now. And I saw that screw cover. I'll check that when I get home. Thank you.

There is a local sewing store i could try too if all else fails.
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