Tension Assembly, Singer 15-91 Remove, Clean, Install, Adjust, Zero Out

[@amberx1863]

Hi Andy! In this video you said you’re not removing the tension spring, stud, and base because you were saving that for your needlebar replacement. Of course I ended up taking all these off anyway because of how much crud was back there but now I’m nervous about reassembling the parts not shown in this video. Any chance you did end up showing these steps in another video? I did a bit of searching but couldn’t find it.

[@andytubesewing1953]

Sorry, no video for that 😢Hy the time I started that and the motor I was too ill to continue. Here is a link to download a free copy of the original service manual. ia903205.us.archive.org/18/items/singer-15-91-adjusters-manual-en/Singer-15-91_Adjusters-Manual_EN_text.pdf Pages 29 & 30 of the manual (not the PDF page number) have instructions for the tension assembly including the spring. I hope that helps you out. Good luck.

[@amberx1863]

@@andytubesewing1953 Thanks Andy! I got it reassembled and working, you went above and beyond with that link for me! I didn’t think you’d have time to respond to my comment at all so I was excited to see it.

[@andytubesewing1953]

@@amberx1863 hey good job! I'm glad you got it going. Thanks for letting me know

[@sondragingery5949]

This is probably the best tension video I've seen. Because you explain the function of each part, it makes it easy to reassemble and zero out the tension properly. Good job!

[@andytubesewing1953]

Thank you, Sondra.🙏 What a nice comment to start the new year 2022 with. It justifies the time and effort I spent. Happy sewing, and thanks for watching my channel.

[@heidicountryman3347]

Thank YOU Andy. I have been watching and studying your tutorials. I am tuning up my 15-91 and you have been my guru. I appreciate you so much and am almost done with her for now!!! Thank you so very much!!!!

[@andytubesewing1953]

What a nice comment so thanks for that! I appreciate the recognition and it helps justify the time and effort taken to make the videos. Thank you for keeping that 15-91 in service, and for watching my channel.

[@Braisin-Raisin]

I am from Germany and found your videos by chance. I enjoy renovating old sewing machines and your videos are invaluable. Thank you!

[@andytubesewing1953]

Welcome to Andy Tube, Karin. Thanks for saving the machines you work on. I'm glad you enjoy my videos. Take care.

[@meganmills6545]

Wonderful - thank you Andy. This was totally worth doing because there are some some subtle little differences worth knowing for the tension on this model that could so easily get missed. I really was thinking "Why is that stud slot off on an angle?" so I had to chuckle when you explained why. Yes, of course! It's obvious (once you know...). ;-)

[@andytubesewing1953]

Good catch, Megan. I must admit when I first saw the position of the tension stud I thought "what knucklehead installed it like that"? After removing the parts I realized who the knucklehead really was. Happy New Year! ✨

[@graymaquilter9641]

568 videos, wow! You are the VSM master! While tension units used to be the most frightening thing for me a couple of years ago, now I just look for your video! Thanks a million Andy. Hope you have an amazingly wonderful New Year!! Jonee in snowy Winslow

[@andytubesewing1953]

I'm glad you no longer fear tension. Growing up I remember the only time I heard my grandmother curse was about the tension on her model 66, haha. Everyone would say "oh, it's the tension? You better take it to the repair shop". I think that's why I made so many tension videos trying to show people how it works and that they can correct most problems with the assembly. Winslow, brrrr... 34F with a low tonite of 6F. Way too cold for this flatlander. For those viewers reading that are curious about the town of Winslow, AZ you can read a little about it here; www.legendsofamerica.com/az-winslow/ Wikipedia has some info also; en.wikipedia.org/wiki/Winslow,_Arizona Thank you, Jonee, for helping to start my new year off so nicely. 💖

[@graymaquilter9641]

@@andytubesewing1953 Haha, yes it’s not been over 34F all day, I don’t think. Much easier for me than 112F, easier to bundle up. My Mom only had a ‘57 Featherweight, she never had any issues even though she made a lot of our clothes on it. It still runs like a champ. I just recall starting out with these vintages and being afraid I’d mess something up. Someone recommended you and that was the beginning of the end, haha! I have certainly appreciated your gentle, methodical teaching skills. You have made it fun to learn! Always happy to see a new video from you. Happy New Year!

[@andytubesewing1953]

@@graymaquilter9641 "...the beginning of the end..." 🤣🤣 Oh man, my first tears of 2022 are from laughter. How lucky am I?

[@graymaquilter9641]

@@andytubesewing1953 Ahhh, but we are the lucky ones - so that means all of us are lucky, how cool is that! 😃

[@andytubesewing1953]

@@graymaquilter9641 I agree; very cool. 👍

[@sonyamah5444]

Your timing is perfect! Goldie has had her shower, spa complete, have played with the tension and bobbin, it is so close, but the dial is on the wrong number and would like to have it all perfect! I am so pleased with my 301a, it is running so well. It just hums - LOVE IT I would appreciate a bobbin lesson too - tension can be such a challenge. Thanks Andy,i would never have tackled this with out you!

[@andytubesewing1953]

I like that name... Goldie! For viewers who don't know, I have 36 Model 301A videos for working on and cleaning it. Two playlists, #1 Coco playlist - kzbin.info/aero/PLsCOZgzzaiKLZyGebzS_oISgesXNyREyI #2 Technical playlist - kzbin.info/aero/PLsCOZgzzaiKI_6fbu3itbd1v4z3uQvvkO Tell me more about what kind of "bobbin lesson" you are looking for.

[@oldschoolwoolandweavingcen4060]

So happy to find this. I just did the tension on my Japanese Clone and though the set up was slightly different I still could follow the instructions. What a relief to be able to do it all by myself ( while following along with you! ) I feel more confident as I set about rescuing and restoring machines. Thank you!

[@andytubesewing1953]

I'm happy you found it too! It's nice to know it can help with some of the Clone machines. Thanks for rescuing all the machines you do. Take care.

[@TrevorBrierley]

Thank you Andy. hope you are well..

[@andytubesewing1953]

Welcome, and you too Trevor.

[@amberx1863]

Thank you for this video, I was indeed searching for singer 15 tension adjustment. My singer 15-125 is maxed out and needs adjustment and I’ve long wanted to clean it too. So easy to follow!

[@andytubesewing1953]

I'm glad you found the video! I appreciate the kind comment and thank you for keeping the nice machine in service. Happy sewing in 2024.

[@denisestone8491]

Thank you for this video. You just made my day by doing this. I have my grandmothers old singer machine and haven't ever been able to use it because of the tension. I will be cleaning and adjusting it now that I have seen this. Your videos make things so clear to me I feel like I could take all my machines apart and reassemble them to perfection. Thank you again.

[@andytubesewing1953]

Thank you for watching my channel, Denise. Some folks don't like my point-of-view style of video, but I want you to see what you will be looking at if you do the work. It's wonderful to have a family machine like that and I hope you are successful with the tension. If not, you know where to find me. Have a good new year and happy sewing.

[@nimatatobiloye9114]

Your explanation is the best Sir God bless you

[@andytubesewing1953]

I appreciate your comment. Thanks very much!

[@PatTrnkaAdams]

Thank you! Your instructions are so informative and paced perfectly! This was exactly what I needed for my 15-91 machine. I had good sewing tension, but for some reason the discs did not disengage when I raised the presser foot. Following your excellent directions, my machine tension is resolved. Thank you!!

[@andytubesewing1953]

You're welcome! Comments like yours are very rewarding and help justify the effors I make. I appreciate it, and that you are keepng that lovely machine in service. Happy sewing.

[@tomwells6499]

I was lucky enough to acquire two of these 15-91s in relatively good shape - one was very good - but the wiring needed replacement on the other - I grew disinterested for a while (a few years actually) - but stumbled upon this tension video and it has me inspired / excited about restoring these beautiful machines - thanks so much for this wealth if detailed info - best I've seen on the 15-91s

[@andytubesewing1953]

You have got a lot of videos on this model. I think you're in for a good time. I appreciate your nice comment and good luck to you

[@paulamendes5907]

Dear Andy, thank you for another amazing tutorial

[@andytubesewing1953]

You're very kind, Paula. Thanks for your patronage of my channel. Take care.

[@TealCheetah]

I just got a 15-91, and this video is so helpful!

[@andytubesewing1953]

Thanks. I'm glad you found the video. If you have not seen it yet, here is my playlist of videos for model 15-91. kzbin.info/aero/PLsCOZgzzaiKJftyGwzdDiWa9R6HFEACJo Congrats on acquiring such a nice model. Good luck.

[@MindfullyMindy]

Andy, I just bought a 15-91 and I was worried because I had no idea how to care for and set the machine. After watching your video I feel confident in my ability to set the tension, clean the tension assembly, and what items I need to do that. Your recommendation about featherlight was helpful. They were inexpensive and had a few other things I will need. Thank you!

[@andytubesewing1953]

I'm happy you found my channel, Mindy. Congratulations on being adopted by a 15-91. I think you'll really enjoy that machine. I have a few more videos about working on it if you find any issues. Here is the Playlist of all 16 videos: kzbin.info/aero/PLsCOZgzzaiKJftyGwzdDiWa9R6HFEACJo I hope you will find time to stop by in the future. Happy sewing.

[@kathy_funk]

Oh. My. Goodness. I have been sewing for 40+ years on my 15-91 and all this time it’s been THREADED WRONG! I can’t believe it. The illustrations in the tiny little green manual that comes with the machine are very hard to see, so I mistakenly threaded mine this way: after the thread goes between the tension plates, I then put it through the tension spring before going through that little left-pointing “finger” on top the tension assembly and then on to the takeup lever. Ack! The spring should actually come after the finger! Well, I immediately ran into the sewing room and rethreaded my machine. Maybe NOW I will be able to do free-motion quilting without skipping stitches. I always, always, ALWAYS learn something new from your videos, @Andy Tube. I can’t wait until you get to the stud assembly. I’ll probably find out I’ve got that one wrong as well. Lol. Thank you SO much for your wonderful, thorough videos. You are truly a gift to all of us vintage-machine-lovers and your work will continue to help others 50 years from now (because you KNOW the machines will outlast us all.). Happy New Year!

[@andytubesewing1953]

Best comment today " ALWAYS learn something new... @Andy Tube " Thank you very much 🙏 I have found most vintage Singer machines to be forgiving to my mistakes. It's like they do their best to make a good stitch even when I goof up. Tension & Timing are the least forgiving though. Those have to be good and it makes sense since those are the most important to stitch forming, which is the function of the machine. I'm curious how your machine will perform with the propper threading path. Hopefully, the angels will sing, hehe. Oh yes, I am COUNTING on my machines outlasting me so daughter and grandkids can play with them a long time. Thank you again for your comment. Take Care.

[@aliciaparker5936]

This was so helpful! I have a 1960s White (Viking for Eatons) machine that has an almost identical dial. With your help I was able to fix the tension assembly. Thank you!

[@andytubesewing1953]

I'm glad you found the video and it's nice to know that people with other models can be helped by it. I appreciate your comment

[@aliciaparker5936]

@@andytubesewing1953 Especially as I picked this machine up off the side of the road! I just couldn't leave it there!

[@andytubesewing1953]

@@aliciaparker5936 I love that! Thanks for saving the machine 😀

[@mygrommi]

I always learn from your videos, Andy. I did not know on the Singer 15s that the tension dial should be at an angle so the sewist can see it since the tension knob is on the end rather than the front of he machine. I have the tensions on my two 15-91s lined up “perfectly” and not angled. Who knew??😲. So now, I will correct that. I remember in the 1960s my Singer dealer strictly and adamantly admonished us lady customers to “NEVER”, EVER touch the tension dial - not to even think about touching it!. We so so afraid that we would totally destroy our beloved machine if we even thought about touching that tension dial. Or we feared we might get arrested if we dared touch it. 🤓 We had to take the machine to the dealer if the tension needed attention. I guess it was easier for the dealer to scare us rather than to teach us how the tension dial worked and how to adjust it. That is so laughable now since some of us ladies have finally realized that it is not against the law to touch the tension dial and we became liberated from “tension dial fear” and have actually learned how to take care of, dismantle, clean, or restore and understand how our vintage machines work. Times have really changed and now I regularly dismantle tension disks totally fearlessly. I owe much of this to you and your priceless videos, Andy. THANK YOU and Happy New Year!

[@andytubesewing1953]

It's a whole new world now for VSM. My Mom and Grandma were told the same thing. I remember my Grandma's face when she walked into her sewing room and I had her Model 66 tension in pieces on her cutting table. "What have you done, Andrew!" 👀 The funny thing was I was just following the directions on pages 22 - 26 of her SInger Model 66 Instruction Manual I found in the drawer of the cabinet. www.singer.com/search/support?title=66-16 I figured if we were not supposed to work on it then why did they show us how? I was young and naive and figured I could fix anything, haha. Luckily I did fix her tension and we celebrated with fresh peanut butter cookies. 😉

[@mygrommi]

@@andytubesewing1953 That’s a great story, Andy!👏

[@andytubesewing1953]

You can see I'll never forget it. Later when she told my mom about it we had a good laugh and my mom asked me to clean her tension too. The start of being the go-to guy in the family for sewing machine maintenance.

[@Lily-eb6kj]

Lo veo después de tiempo...muchas gracias por sus enseñanzas... Feliz Año 2022,que sigan los éxitos.

[@andytubesewing1953]

Muchas gracias por comentar / Esperando el mejor año nuevo 👍

[@marydeignan2183]

Thank you! I'm going to have to check all my class 15 machines now. Such good information.

[@andytubesewing1953]

thanks for watching my channel, Mary, and for taking time to comment.

[@heathertavane8629]

Absolutely PRICELESS information! I can't thank you enough. 🥰

[@andytubesewing1953]

Welcome, and glad you found my video.

[@andreaoshea4366]

Andy, I love your videos, very easy to follow. I especially enjoy your little chuckle and whoops 🤭 thank you

[@andytubesewing1953]

Thank you for the kind words, Andrea. A few chuckles and whoops can make things easier sometimes, haha. Thanks for watching my channel.🙏

[@marlenebudnik3133]

Thank you Andy Tube! 🥰

[@andytubesewing1953]

Welcome, Marlene. 🙏 Thanks for commenting.

[@JennaRoman-WhimseaStudio]

Thank you for your wonderful video. I have a 99k, is the tension assembly the same? I love the schematic, makes it so easy when reassembling!

[@andytubesewing1953]

Thank you for watching my channel and I appreciate your comment. May I ask you to take a look at my Playlist for "Cute" a Singer Model 99K? kzbin.info/aero/PLsCOZgzzaiKIIUgkEujqHc9iNWN9NPW2Z There are 21 videos for working on the 99K including one specifically for the Thread Tension Unit: kzbin.info/www/bejne/qJrSg5uJl9SabLc It details the parts, how they function, how they compare to another common tension unit, how to take it apart but back together, and "Zero" it out to factory settings. The other 20 videos include a slideshow of the original parts diagram of the tension unit, how to time the hook, and how to clean the machine, how to completely remove and replace all the bobbin area parts, where to buy new felt wicks for the hook lubricator, and so forth. I think you may enjoy some of the videos and thanks for keeping your machine in service.

[@triciabrooks2520]

Yes, That is exactly what I googled. 😀 Thanks for posting.

[@andytubesewing1953]

Thanks for your interest in keeping that machine running. Good Luck.

[@triciabrooks2520]

@@andytubesewing1953 It was my grandmother's machine❤

[@andytubesewing1953]

@@triciabrooks2520 oh that's even better!😃 Family-owned machines are fantastic and you can maintain that machine and someday pass it on to a member of the family, maybe even your own granddaughter someday. Thanks for sharing that. It really gave me a big smile

[@MyMike509]

Greetings Andy! This will help me immensely - putting together an assembly on my (15 clone) White 263 straight stitcher (same configuration, side tension unit that attaches to the side plate like the 15-91). I'm having a problem with the pin staying all the way to the back, and when I lift up the presser foot, it jams into the pin and does not lift all the way. Nor does it 'push' the pin in to loosen the tension discs. I must have something ajar. :) I knew I'd find an "Andy" video that might help! Also thanks for the Singer Adjuster's manual link! I've learned so many things from you over the years for my 401 and 404 - as have many people! Wishing you all the best!

[@andytubesewing1953]

good luck,. Last time I had a similar problem the tension assemble parts were not in proper sequence and that put the pin too deep.

[@graymaquilter9641]

The gall of somebody naming hand dishwashing soap “Joy!”

[@andytubesewing1953]

Haha... What did you expect from a bunch of guys at Procter & Gamble circa 1949? It was the first liquid dish soap though, and I just verified that they still make it (My 11-year-old bottle is running low; maybe only a year of suds left) It gets the greasy sewing machine parts clean in half the time, too. Just ask them. www.joysuds.com/history/

[@graymaquilter9641]

@@andytubesewing1953 We actually use that..I grimace every time I think of the irony, haha!

[@OutnBacker]

Thanks, Andy! I THINK I may have fixed it. The old 223 is taking canvas like tissue. Four layer seams with no bunching, thread breaking, and tight back stitches. This weekend I'll add canvas reinforcements to a tarp project and sew on webbing for the tie outs. That'll be a very rigorous test. It seems to be running like when I got it some 4-5 years ago. This machine has sewed some small dacron sails and lots of canvas. Each up to 8 layers with no issues regarding power. I'll keep you posted.

[@andytubesewing1953]

This comment was held by KZbin (I can't see why) but they released it on 08/19/2023 at 11:02 AM. This is great news and happy you did not give up on that nice machine.

[@OutnBacker]

@@andytubesewing1953 If UTube didn't have its practical usefulness, Id drop it like hot rock. After the successful test, I went through it with a fine brush, swabs, and some alcohol and cleaned everything I thought could use it. Then, fresh Singer oil in all ports and on every cam surface. Tomorrow I can getstarted on the tarp project: a second hand king sheet thatwill get the edges folded over an inch then sewed for strength. Then, canvas reinforcments at the corners and two along each edge. After that, I'll sew on some webbing for tie-out loops. The final step will be dunking the whole thing in a mixture of silicone caulk dissolved in naphtha for a waterproof treatment. King sheets make great lightweight camping tarps for pennies compared to commercial Silnylon. Thanks again, Andy.

[@andytubesewing1953]

@@OutnBacker Sure, you are welcome. That's quite a process you've developed. Makes a lot of sense. Hope you have continued success.

[@OutnBacker]

@@andytubesewing1953 Can't lay claim to the process. It's well known among the BushCraft crowd. Cheers.

[@andytubesewing1953]

@@OutnBacker OK, whatever "BushCraft" is 😉

[@xyz12345457]

Hi Andy! I can't tell you how much I have learned from your videos. I currently have 5 old Singers that I am going through cleaning and tuning to the best of my ability. It has been a lot of fun and I couldn't do it without your help. I'm struggling with the tension on a 500a. Following your instructions, I disassembled, cleaned and reassembled the tensioner. When reassembling, I attempted to zero out the tension. The problem is, even when I loosen it as far as it will go, it is still too tight. So when I sew with the tension set at 0-1, The bottom thread is straight and pulls right out. It had this problem before I started working on it, so I'm pretty sure I didn't break anything. You have probably shown how to correct this in one of your videos, but I haven't run across it yet. Can you point me in the right direction?

[@andytubesewing1953]

I'm a little confused here, sorry. If you set the upper needle thread tension to 0 or 1 there is no tension on the needle thread. The bobbin case also has a tension spring that puts tension on the bobbin thread. With normal bobbin thread tension and zero needle thread tension, the bobbin thread won't be pulled up into the layers of fabric by the needle thread. The result is what you describe; the bobbin thread lays flat on the underside of the bottom layer of g=fabric. With normal upper and lower tensions, the threads form a lock stitch in between the layers of fabric. If you DO HAVE upper thread tension and the bobbin thread lays flat on the bottom that would mean the bobbin thread has more tension than the needle thread pulling it down through the layers of fabric. That is why the upper tension has a dial to add more or less tension. Bobbin tension can be messed up due to debris build-up under the spring or if someone adjusted the tension of the bobbin case spring. I do have a video for cleaning and/or adjusting the bobbin case tension kzbin.info/www/bejne/foWYiY1rmr6Me7M You also said you have trouble doing the zero out on the upper tension assembly and even setting to zero the tension was too tight. That just doesn't follow with the thread being flat. Sorry if I'm misunderstanding the problem.

[@xyz12345457]

@andytubesewing1953 thank you so much for your reply. Even though I described the problem incorrectly, your explanation makes perfect sense and I believe it will help me find the solution. I will tinker a bit more and let you know how it goes. You are an inspiration. No kidding, it probably sounds silly to someone who has little interest in vintage sewing machines, but for those of us who are delighted by them, you are a hero!

[@andytubesewing1953]

@@xyz12345457 OK, thanks. Give it a try and if there is still a problem with tension let me know. I can also send you the Service Manual if it would help. Good Luck.

[@brianadugayon7060]

Do you have a video about how to take about that base behind the tension? I need to replace the spring that's in there, the one the thread hooks too when threading. I love your videos, so easy to follow!

[@andytubesewing1953]

Right, the Thread Take-Up Spring. I don't think I have the exact video you're asking for but here is what I can offer. A tension video for model 99K which has a similar tension unit, maybe not exact, but similar: kzbin.info/www/bejne/qJrSg5uJl9SabLc A link to where you can download a free PDF copy of the Adjusters Manual for model 15-91: ia903205.us.archive.org/18/items/singer-15-91-adjusters-manual-en/Singer-15-91_Adjusters-Manual_EN.pdf Perhaps with this extra info you can work thru your problem. Thanks for watching my channel, and good luck.

[@DianaB4dawn]

Hi Andy, thanks for the video. I have a 215g, and this looks very similar. Do you maybe know what American model was the example for my German one? Best regards from Berlin.

[@andytubesewing1953]

I can't help much with your 215G. It looks like Singer inherited the model from a German company when they bought their factory www.singersewinginfo.co.uk/215g If I got it correctly they made it the first year and then retooled the factory to make the newer cast aluminum machines. Maybe one like this? kzbin.info/www/bejne/aYu9kmqLqMtpopo It seems Archive.org has a copy of the original 215 manual in German: archive.org/details/singer_215_gebrauchsanweisung_instruction_manual/mode/2up I have hundreds of Singer documents, but nothing for model 215.

[@Lou-wi4kq]

Hello, very informative video. This helps me a lot to solve the tension issue . Thank you !

[@andytubesewing1953]

I'm glad you found the video then thanks for keeping the machine in service and I appreciate the comment

[@amazingarod26]

Hi Andy! I've just started cleaning my 15-91. Thanks for all these videos! Which video has the tension spring, stud and base removal and cleaning? I'm having trouble finding it... Thanks!

[@andytubesewing1953]

Hey, Andrew. I did not make that video as the parts were clear and working good. You can follow this link and see (and download) a copy of the Adjuster Manual that has the instructions you want: www.manualslib.com/manual/1027731/Singer-15-91.html?page=17#manual Hope that will cover it for you, and thanks for watching my channel. Good Luck.

[@amazingarod26]

@@andytubesewing1953 Perfect! Thank you so much ❤❤

[@andytubesewing1953]

@@amazingarod26 I know you will do it. If you want to see what it looks like inside I do have a video for a 99K that has similar parts kzbin.info/www/bejne/qJrSg5uJl9SabLc Good luck, buddy.

[@MrCount44201]

Great video as always Andy, thank you. Any chance of you working on a White Model 43 or 77, in the future?

[@andytubesewing1953]

Thank you, Chris. Sorry, only Singer & SIMANCO Machines are on this channel. I've no experience with others.😞

[@adkinsconnie]

Andy!!! I need help. My Singer 15-91 was made in 1938, she has a scroll faceplate and her tension unit is made a bit differently. These directions are just right for reassembling her bobbin. How can I found information on the older model tension?

[@andytubesewing1953]

This charity sells a guide that includes tension servicing for models 66 & 99 that have the type of tension I think you have; www.tfsr.org/product/sewing-machine/ If you can not afford to buy it from them you may be able to get a free copy from this service, just be careful what you click on www.scribd.com/document/355688276/How-to-refurbish-sewing-machines-TFSR-Refurbishment-Guide www.scribd.com/document/351577023/Refurbishing-Upper-tension-Mechanism-Singer-vintage-machines

[@wandac.8382]

So helpful! Thank you

[@andytubesewing1953]

Thanks, I appreciate your nice comment

[@beckyleroy1221]

Love your video. Do you not coat any parts with oil before reassembly? I think I am going to have to clean my assembly all the way through. Should I be scared? I know I can get as far as you did in this video. After that, all bets are off!

[@andytubesewing1953]

Thanks. The only part of a tension that I have oiled is the tension spring (beehive spring). In fact, at @11:45 in the video, I mention being sure there is NOT any oil on the discs themselves. The first tension I ever did I put a very light coat of oil on the parts and I had a very hard time setting the proper tension until the light came on that oil is slippery and the thread was slipping right through those discs. So, no oil on any part the thread touches is my policy, and if I do add oil I usually put one small drop on my fingers and rub the part, like the spring, to coat it with a little oil and then rub the part with a towel. If you live in a very humid area I would do that. Here in the Sonoran Desert of Arizona, the humidity is very low and rust is unusual. Scared? No need to be scared or nervous. The parts are very sturdy and you can do this with no problem. It is very rewarding to have a clean tension unit that is zeroed out and working like new. I think you'll enjoy it actually. Next thing you know you will be watching more of the videos and removing the needle bar or something, hehe. Don't be in a hurry, turn on some music you like and have a good time with it. Thanks for watching my channel, Becky, and take care.

[@jayescreations489]

thank you. I have two 99ks to zero out. so fun.

[@andytubesewing1953]

Very welcome. You may want to take a look at this video too kzbin.info/www/bejne/qJrSg5uJl9SabLc Thanks for watching my channel.

[@chelsea6539]

The gage that you use to measure the tension, do you know what it's called? I'm trying to find one to buy. Thanks!

[@andytubesewing1953]

I put a link in the description below the video, but here it is again: singer-featherweight.com/products/bobbin-tension-meter Their new version is much better with the darker metal that gives superior readability. It was originally made as a postage scale but soon became a favorite affordable tension meter for folks like us. The featherweight shop is the best for it, IMO, with free, fast postage, but you can shop around online too.

[@chelsea6539]

@@andytubesewing1953 thank you! I ordered one. I'm having issues getting the tension right on my 15-91, so I'm hoping using this will help and then if I continue having problems I'll know it's not the tension.

[@andytubesewing1953]

@@chelsea6539 That's exactly how I troubleshoot the problem and it's nice to have that gauge around. Good luck, I hope it works out

[@simplyscyfygirl2641]

I am hoping you can help me! I just purchased one of these at a thrift store and I have been working on it, I got all the parts moving, I had to clean rust off the bobbin shuttle and I installed a new motor and belt. It is running and seems to be going well except one tiny problem, my white thread is coming out grey! Yikes! The only part I haven’t cleaned is the tensioner. I’m wondering if you think that is the problem or should I look elsewhere?

[@andytubesewing1953]

How did you clean the rust off the "shuttle"? It should be easy for you to determine if the tension unit is causing the grey thread. Remove the thread from your needle. Grab the needle thread just before it goes into the take-up lever. With the presser foot down pull the thread straight up. So you are pulling the thread thru the tension discs under tension. If something on those discs is staining the thread you know that is the cause if the thread is going into the tensioner white and coming out grey. I've never seen that, but each machine is unique. If so, time to clean the tensioner. If not then the more likely cause is when the hook point grabs the needle thread and drags it around the parts to wrap it around the bobbin thread. Much more contact with metal in that process. Did you use a chemical to remove rust? Did it leave residue from reacting with the steel? Could you remove the bobbin case and rub it with a white cloth to see if it marks the cloth grey? I always try to isolate the problem before grabbing the tools, so I think you're smart to ask before removing the tensioner.

[@simplyscyfygirl2641]

@@andytubesewing1953 I did not use a chemical cleaner to clean the rust, I used a dremel with the wire brush on very low speed and delicate so not to nick anything. The feed dogs were caked in something black which I have now decided was part of the culprit but still coming out Grey when sewing. Maybe there is grease around the bobbin where it catches that I’ve missed. I did not think of that! I will check that tomorrow! Thank you!

[@andytubesewing1953]

@@simplyscyfygirl2641 okay good luck. Hope you find the source

[@simplyscyfygirl2641]

@@andytubesewing1953 what is the best most gentle degreaser to use on this machine?

[@andytubesewing1953]

@@simplyscyfygirl2641 I only use one degreaser and it is the only one I have ever tried. www.rustoleum.com/product-catalog/consumer-brands/krud-kutter/cleaners-and-stain-removers/original-krud-kutter I buy it by the gallon but it comes in 320z spray and 4 oz concentrate too. It is water-based and you can use a 5% KK to 95% water solution if you want "gentle". Like 1oz KK to 15 oz water. The concern with the 15-91, and all black coated machines, is the finish is easy to damage with cleaners. Here are a couple of videos for cleaning two black finished models: kzbin.info/www/bejne/rWfJn2CKiLR2j9E kzbin.info/www/bejne/pIuucol-m7qEpcU On all metals, plastic, etc parts I just use the KK as a cleaner general cleaning about 15% then make it stronger if needed for very greasy gears, etc. People have used Simple Green, dish soap. alcohol, gun cleaning solvent, brake cleaner,, hand cream-type degreaser, and all kinds of stuff. I just stick with the KK.

[@maria2400]

Great video. I love Ike.

[@andytubesewing1953]

Thank you 🙏

[@hennieminten4406]

I wonder if you would be able to help me with my Morse 5401 Stretch Stitch sewing machine which has a problem sewing only in smaller size zig zag stitch. Doesn't matter what I do it will not sew with a larger zigzag stitch. Would you be able to provide a video in how to fix this problem. Hennie Minten

[@andytubesewing1953]

Sorry, I only do Singer. I don't know anything about Morse machines. ☹

[@retroredo9850]

Thanks so much!

[@andytubesewing1953]

😀

[@sarahgobrecht669]

I have a question… the long horizontal post that you put all the tensioner parts on to when you re assemble it… the slot in the center of that post is vertical. Can I adjust that?

[@andytubesewing1953]

It's called the Tension Stud, and yes you can adjust it. When you turn the stud to the right it increases tension on the Take-Up Spring. Of course, turning it left reduces tension on the Take=Up Spring. The Adjusters Manual says there should be just enough tension on the Take-Up Spring to take up any slack of the needle thread when the needle is going down into the fabric. You don't what the thread flopping around during that time. To be able to turn the Tension Stud you loosen the smaller set screw on the outside left side of the cylinder that surrounds the Take-Up Spring. If you look at the side of that cylinder there are two screws. One has a larger head and is closer to the front of the cylinder. Farther back past the first screw, there is a smaller screw. That is the one you loosen to turn the stud. If you freeze this video @ 9:52 there is a decent shot of the two screws I'm talking about. Most SInger tension studs of later models did have the slot of the stud turned horizontal. That's because the tension unit faces the sewist. The model 15-91 has the tension unit on the nose cover plate with the stud normally turned so the openings of the slot are at about 4:50 on a clock face if you remember what those look like 😊🕟 The idea is it tilts the Indicator Dial (- | + ) towards you as you sit there in front of the machine to sew. Does that help, Sarah? Good luck, and thanks for watching my channel.

[@sarahgobrecht1197]

Thank you for your explanation and quick response. Your videos on this 15-91 are going to be valuable. I recently purchased a used one in cosmetically good condition. The previously owner is a tinkers in old bicycles. He picked up this machine at some point. After I purchased it for 50 bucks he told me he had taken it apart because it was locked up. The marketplace ad said it had “restorative maintenance professionally performed “ in working order. ( insert audio laughter track!) The guy didn’t know how to sew, so the machine couldn’t have been tested. The motor runs and the needle goes up and down. The tensioner, bobbin winder are not quite right. It doesn’t NOT sew a stitch yet. The thread keeps breaking. I followed your video to take tensioner apart and put it back together and that’s seems correct…but that tension stud slot being vertical instead of horizontal bothers me. I’m going to turn the tensioner stud to the left to get it horizontal then put it back together.

[@andytubesewing1953]

@@sarahgobrecht1197 “restorative maintenance professionally performed “ 🤣🤣😲😲 I meant to ask if you have the Instruction Manual. You can download a FREE PDF copy from Singer Support at this link: www.singer.com/search/support?title=15-91 68 pages of great information and instructions. Thanks for saving the machine, Sarah, and good luck.

[@sarahgobrecht669]

I have a digital copy so far

[@andytubesewing1953]

@@sarahgobrecht669 Good. I find them very helpful when I first get a machine. I'm not familiar with. Good luck! Sarah

[@emilyaltman2184]

You are the best!

[@andytubesewing1953]

😊

[@christinewhitaker2957]

I found a washer like part along with the disc when taking apert tension assembly I don’t see it here. Can you help me?

[@andytubesewing1953]

So it is not the stop washer shown at @4:16? Is your machine this exact model, the 15-91?

[@christinewhitaker2957]

@@andytubesewing1953 no it’s the same size as the disc

[@andytubesewing1953]

@@christinewhitaker2957 sorry, you did not verify the model number. Also, are you saying you have two curved discs plus one flat washer? I've never seen that. If one curved washer and one flat washer I'd say it was a home repair for a lost curved washer. The parts manual for the 15-91 shows two curved washers (tension discs) Used ones can sometimes be found on eBay, as well as "new" aftermarket tension units but I've never tried those..

[@christinewhitaker2957]

@@andytubesewing1953 AM432133 15- I want to send a picture.

[@MohammadNeam-ru6lv]

how to adjust the tension dial so that there is no stitch when sewing?

[@andytubesewing1953]

You can download a FREE copy of the 68-page Instruction Manual from the Singer Support page. It has all the instructions for using the machine: www.singer.com/search/support?title=15-91

[@jessicaandersonfowlkes6100]

I have chandler my tension missing I need new one can you help me

[@andytubesewing1953]

Sorry but what's a Chandler? If you can tell me the the make and model of your sewing machine I can try to help you

[@redwoodcattledog]

Does anyone know if the tension is the same as a 15-125? People keep telling me it's the same machine as a 15-91 ... Thank you

[@andytubesewing1953]

Yes, the tension assemblies are the same. I have copies of the original parts lists/diagrams and the part numbers match. What we call the tension or the tension assembly or the tension unit is labeled on the parts list as "Part 125418 - Tension (Graduated) Complete.

[@redwoodcattledog]

@@andytubesewing1953 Oh that helps so much - thank you! I'll get the parts and try tackling it. I hear it's a good machine so keeping my fingers crossed I can get it working. Hope you are feeling well and thank you so very much for answering my question! - Dorothy

[@andytubesewing1953]

@@redwoodcattledog You're welcome. I'm not sure which model you have, haha. Model 15-91 was made from 1930 to 1956. Model 15-125 was made from 1955 to 1958. Model 15-125 is actually based on model 15-75 but they added the potted motor. Here is info on the 15-75 which I have never seen in person (rarer) sewing-machines.blogspot.com/2013/03/singer-15-75.html You'll have a good time working on your model 15 whichever you have, and they sew like a dream.

[@erikhoffa966]

Hi Andy is it so that tread can get old? I have constant breakedge when sowing in an Singer 437, THE tread seperate and growes in thickness and Snap,s. Erik from Sweden 👍

[@andytubesewing1953]

I suppose it can, depending on storage conditions. My wife recently made a blouse and used some 50-year-old Mercerized Cotton Thread that worked perfectly. Many seamstresses have told me to use good quality thread and needles b/c they are the least expensive cost of what you are sewing, compared to the cost of material/fabric. For me, the keywords in your statement are "grow in thickness". I've seen that when the eye of the needle is too small for the size of the thread, and that causes the thread to "bunch up" on itself and get too fat for the eye and then snap apart.

[@erikhoffa966]

@@andytubesewing1953 sounds plausable. Thank,s

[@andytubesewing1953]

@@erikhoffa966 If not for the thickening then the most common problem is upper thread tension too high. That is easy to test by turning the tension number down & down. You want the least amount of tension that gives an even stitch. kzbin.info/www/bejne/hoSmimpol69mrpo

[@erikhoffa966]

@@andytubesewing1953 moisturising THE tread and avoid THE last treadguide made it much better.

[@andytubesewing1953]

@@erikhoffa966 That's a very unique workaround, Erik. 🏆 I've never heard of "moisturizing" the thread. If the thread is moisturized before entering the Tension Discs in the Tension Assembly and then the last thread guide is skipped both of those would reduce tension on the needle thread (as I mentioned). I'm happy you found a solution no matter what it is and it is true that necessity is the mother of invention. Happy Sewing, and thanks for watching my channel.

[@تغريد-ف5ذ]

My singer 191b noisy

[@andytubesewing1953]

The Singer Model 191b was made in France and is very similar to model 15-91. I have a playlist of videos for 15-91 including this video for the tension that you commented on. There are also videos for the rock shaft and hook and shuttle systems which can be noisy areas on the machine. Maybe watching some of the videos can help you discover what is making noise and fix it. You can find the 20 videos here kzbin.info/aero/PLsCOZgzzaiKJftyGwzdDiWa9R6HFEACJo آمل أن تتمكن من إصلاحه amal 'an tatamakan min 'iislahih Good Luck, and thanks for watching my channel.

[@lindahanke]

Great video. I have one of these machines. 👍👍👍new sub 👍❤️

[@andytubesewing1953]

Thanks for the sub! IT's a wonderful model, isn't it? My 17-video model 15-91 playlist is here kzbin.info/aero/PLsCOZgzzaiKJftyGwzdDiWa9R6HFEACJo Thank you for watching my channel.

[@omergebes6105]

Hi Grandpa, I love your shaky gifted hands an kiss them all. God bless you.🙏🥰

[@andytubesewing1953]

Nicest comment about my Parkinson's that I ever got. Hope you have a happy, healthy and prosperous new year with many more to come

[@omergebes6105]

Happy new years to you and all your loved ones sir❤ @@andytubesewing1953

[@kelmarie2769]

247?? 😑

[@andytubesewing1953]

A little different. The numerator (number) dial pulls straight off towards you. Under it is a screwed-on thumb nut to remove. Other parts on the stud are in the same order. Buy the $9 Service Manual for complete instructions here: manualsoncd.com/product/singer-240-series-sewing-machine-service-manual/