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I have a problem with the upper tension unit on my Bernina 730 record ,,,when I lift the presser foot lever and then release it the tension unit does not re engage ...that is there is not any tension on the thread and it runs freely ...Thanks

Just found this video and it is amazing! I'm glad that I don't have actually this problem on my machine. But it needs a repair on the motor. These are three things I don't like about sewing machines: Synthetic gears and other parts that can break, cord chains and motors. They just cause trouble. What I wonder and would like to know: would it be possible to produce a metal gear and use this instead or would this bring damage to other parts? What should I use? Some kind of steel, if yes which? Or a new synthetic gear and what should I choose? Are there any original measurements available? If a replacement with a metal gear would work, many of these and other machines could be saved and get a new life.

Wow. This is not a "tutorial" 👀 This is a Masterclass! Thank you, Sir! This will help me to repair my "new" Bernina Record 730! Bernina stopped making these parts, which is a shame imo. Bc the Machines otherwise work well and are worth repairing. I paid 90€ for the machine, and 38 € for the cam gear (including shipping), and I had a hard time just finding a dealer that had one laying around that was original😬😬. I definitely will take out the old one and glue it together, - then turn out the middle to spec with my wood turning machine and make a mold out of it! So that I can make my own! Will experiment how long they last😬😬. Good information about casting and making molds is to get from websites that deal with miniature plane models and such. If some one is interested. Greetings from Germany sends this old CarpenterBee 😎😏🇩🇪

What happen to the Website? Only leads to some sportpicture..?

Thank you so much for this thorough video. My partner and I managed to get the 730 they bought working again thanks to you! I do have a couple additional tips that might be helpful to others: - Our replacement gear was slightly longer, so the cam stack was offset by maybe 0.5mm. A helpful technician of a local repair shop told us we can adjust for this by moving the cam follower (the lever where you select the pattern) a bit by loosening the two screws holding the lever ratchet. - Adjusting the parabola is a bit trickier than shown, as in our case the set screws where not accessible when relevant position (needle at the upmost point or at the point without lateral movement). I thus made an second mark on the case to be able to rotate the hand wheel the right amount. - You be careful not to rotate the wheel backwards while the worm gear is loose, otherwise it will "unscrew" it, moving it along it's axis. - I didn't entirely understand how you synchronized the pattern display and again had the issue with the set screws in inaccessible locations. What worked for me was moving the needle/hand wheel until it's at the beginning of the pattern and then assemble the pattern display. Then there's no need to adjust the gears, it "just works". - A 2mm hex key (inbus) works fine as a tool to hold the pattern display in the right orientation. No need for any special tools.

Dónde puedo encontrar la banda de Motor de la BERNINA récord 730?

What a lovely, generous gentleman. God bless his family.✝️🙏🏻

Thanks for uploading this video. I learn a lot from your videos. Best regards

lovely and informative video!

The instructions on how to re-align the machine afterwards are here: Part 1: ruclips.net/video/0lRvmuWbaqE/видео.html Part 2: ruclips.net/video/k1-lJgz8d74/видео.html The steps are dependent upon each other, you need to do them in order.

A huge thanks for this video! I just got my new gear and Im prepering for this operation on my 730. Ill admit Im a bit nervous but with the help of this video I hope it will be fine

Thanks a lot I would like to contact you please ?

sir my machine doesn't work what can i do for it

Hello sir, Can a singer 3314!c singer that doesn't take cams be converted to a singer 3317 that does take cams by changing it to a multi cam mechanism bloke the singer 3317

Thanks....thanks....very nice

Nice video. I have a 1130 from 1986, I think. The mecanism, sleeve, that is involved with the feeder, i s worn out. Part number 000177.71.00 Where can I find a new, ore a used one?

What a professional, wow! This man must be a trained mechanical engineer. Just wonderful to watch.

can you instruct me on how to open all the covers on my bernina 770 QE, I need to clean inside completely cuase a did a lot of sewing with canvas that was treated with something that let a lot of dust all over, please advice, my bernina dealer is too far away and i don't have a car.

I am having an issue where my Bernina 830 won't move up and down. I got it on ebay but it was just serviced before it was shipped to me and I've seen a video of it working taken right before it was shipped. I've done all the trouble shooting I can find online and from friends, it is out of bobbin mode. (bobbin mode does work) It also can move left to right. But any piece associated with the needle moving up and down is rock solid not budging. Do you have any videos about this topic?

This guy is the High Priest of sewing machine mechanics! Watch and learn you saucy tinkerers.. ☝️😇

Mr. lund… sorry to hear you have passed away! Thank you for sharing your knowledge about these beautiful machines… Sincere condolences to your friends and family. RIP

hello, i am very sorry to hear that another irreplacable Galactic Pot-Healer is in better place now. Especially that myself i am struggling with correct setting of my bernina 730. unfortunately in Polando i haven't found a one living soul who would have any idea about servicing bernina. had to get manual, setting book, exploded view and even tools catalogues in order to replace camstack and vertical gear. all i need are technical dimensions of servicing tools. I would really be grateful and appreciate if somebody please help me with a tool referencing number N32NU2. This is a needle-like looking tool used for centering oscilating block of a zigzag operation. This place seems like the last spot i could get help. Anyhow i wish You all Happy Every New Year and much healt, wealth and PEACE! Whoop Whoop!

Excellent vidéo.

Do you know where I could purchase a power cord for my Bernina 731?

What a super video, Neal. I have this precise problem with one of our machines, and while I could have fumbled through some of the more basics aspects of the repair, I'd have come unstuck at several points along the way without your guidance. I'm ordering the part tonight and will post my - hopefully successful - outcome once the job's complete. Articulate and beautifully presented. Thank you!

Thank you for this video! I want to repair a beautiful model 707 with a cracked vertical gear. But I have only found a replacement top vertical gear as a helical gear which would require a mating helical gear on the main horizontal shaft. I have not found a straight bevel replacement vertical shaft gear. Do you know of a source for the straight bevel gear for this application? If not, do you know where I can purchase a matching set?

Thank you for the amazing detailed video! I didn’t understand any of it but that’s ok :) I was watching it to hopefully find out if maybe the timing is the reason my 830 record model is tearing upper thread very often when I am going slow turning all sorts of corners m while sewing dolls etc. if you know what it could be-I greatly appreciate your response!

Hi there, I've got a Bernina 730, I've changed the stack cam gear as well as the vertical gear, I also adjusted the needle timing from the vertical gear and the zigzag and straight stitches are working well, however when I use the lever to use the other patterns, it doesn't do the other patterns correctly because the timing of the needle is different. Could you help me to tell me what I did wrong and what I should do, thanks L.

I’ve recently got one of these machines as a gift, I’m very excited to use it! I’m having a problem where the needle is off centred and hitting the back of the plate before going into the bobbin hole, any tips on trouble shooting?

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Hi Neil my husband changed the beval gear on my Bernina 730 he doesn't understand when you tighten the screws , you said hand tighten them now he can not set the tention and thighten finaly

Hello mr Lund, I am trying to fix my mum’s 60y old Bernina 740 favorit. I think I have the needle timing correct ( thank you for the video :-)), but after 4 or y5 tuns on the wheel, the upper thread gets stuck somewhere in the bobbin case, and breaks. I’ve managed to pick up the bobbin thread a few times, but no stitches were made. Because of the age of the machine, I don’t find a lot of information on the net. Can you help me? Thanks, Gunther

Thank you very much for these videos.

Hi Neil, I'm loving your videos. I'm finding a dearth of technicians who can fix my 1130. Now I have a whole stable of venerable Berninas, 117, 530, 540, 730, 1130, and now a 217. I just wish I had heard you properly about oils and greases that you used. Please can you let us know what they are? The old girls need a bit of lube after sitting around for many years! Thanks, Mandy (New Zealand)

Hi mr . Lund , do you sell clamp and gauge for adjustment ?

Great video. I have a bernina 730 record that has a broken pin that rides on the cam cluster. Is it possible to source this item. Hate to have this machine nine functional for such a small part

My respects, Mr Lund! As a total amateur I have succeeded in setting my 2 Bernina 730 Records from the early 1960ies and also to repair the bigger plastic camstack gear on one of them and to change the vertical axle on the same machine, and the set both machines from the beginning of the procedure, following the technician level shop manual "The setting of the Bernina sewing machines models 730, 731, 732". My both machines are of the type 730 Record with 20 ornamental pattern cams, the older one with the disc type thread pre.tension system, the slightly younger one with the hook variant. For now I'm re-setting the older variant of machine after finding that I had some settings basically wrong, which has not hindered this machine to perform quite well for years. Now, looking for perfect needle placement, I think I have detected a problem with the longitudinal needle position (in direction of the fabric advance). The correction need is very small. On page 21 in the manual, part 22, "Centering of needle movement", the text says: "If a longitudinal correction must be made (in direction of the fabric advance), unscrew the bakelite handwheel - - - unscrew the four four frame screws (accessible by means of a long screw driver from the frame cover side by means of a long screw driver from the frame cover side) and press frame into correct position." Could you please help me identify all theese 4 (four) "frame screws". Do all four look the same? What is meant with "press the frame in correct position" (in relation to what?). What is meant with that all 4 screws are accessible with a long screw driver through the "frame cover side"? Is this through the plate under the handwheel, covering the pulleys and drive belts? If not, then through what, as i takes a long screw driver? This is an information I can't find anywhere. Gunnar Pettersson, Finland

Your videos are beyond education! Thanks a lot! I fixed my broken Bernina 830 based on your videos (also the timing was very helpful). One thing that I noticed is that if the selector level finger does not sit properly on the patterns it will jump and make a noise. This may happen due to different dimensions of the new part and the selector finger may tough the neighor patterns causing wear, jump and noise. So I think the lever position ladder had to be also adjusted for the first and the last patterns so that it fit properly on the patterns.

In case you can see this question- I got a 540-1 favorit recently. No surprise it’s a beautiful machine. Other problems have al been sorted except a broken worn wheel meaning zigzag stitch only without pattern stitches. Now got to know here cheap spare parts are readily available, so intend to fix this. But I’ve chucked out the broken part. Do you have the specs of this worm wheel? Diameter, number of teeth etc. Thanks!

Great video as always.

Do you by chance have a part number for that Bernina cam stack tool? i have done enough of these at this point that it would nice to have one.

Thank you! This helped me repair my mother's Bernia 800 machine which was dragging the needle against the plate.

From a rather small boat anchor to a great running little machine, thank you I was truly at my wits end. You saved my sanity and my reputation. My customer was told that her Bernina was a sealed unit and never needed oiling, everything was varnished over and all it did was hum when the pedal was pressed. Hours of cleaning later and it is reborn. Many thanks David G. Morgan St. Albans VT.

thank you for your knowledge and sharing, may you rest in peace.

I can't get the top open of my bernina 830 record machine