For those that can't get the 3 set screws off the gear, or the gear wont rotate because the set screws deformed the shaft too much: you can still fix the timing yourself. Take all the screws off the bottom of the machine, remove the base cover. Slide the belt off its gear, set the timing as described in this video. Try not to rotate the shaft and slide the belt back onto the gear. Way easier than bending allen wrenches

Kevin, you are wonderful!!! I absolutely love your voice and patience during your instruction. I would be so proud if you were my son or brother or husband. And you are a great teacher! Thank you!!

Kevin, it's hard to put into words how valuable your videos are. Thank you, brother, from the bottom of my heart. You have no idea how much you have helped me.

Thanks for mentioning all the spots that need oil. I have always oiled the metal to metal in the past, but, the recent video I saw said to oil the felt and did not mention the grease or other parts to oil. You have made my day. Now I have to take it apart and oil the rest, and grease it when I receive the grease. Your video has made me happy now that I do not have to spend $$$$$ on having it serviced. May God bless you for taking your time to bless others.

I got a Singer 4432 for cheap price a few days ago and did not know that it has problems because they said there was "no problem we just want to upgrade" and I believed lol. I couldn't make the bobbin thread through and I followed your video to retime the needle and bobbin assembly. It worked for me! Thank you so much.

Thank you for your amazing video. With your help I was able to fix my timing issue today having never worked on a Singer Heavy Duty machine before today. Didn't take as long as I thought I would take. This video made my day.

You cover the top timing as well while others don't. That helped me salvage my 4411 that a repair man said needed parts and was a write off. Now it's working on a 4 width zig zag which is all I need - I dont have your patience to get it not to skip the odd stitch on 6 but greased and oiled like you showed, it' sounds great and is running sweet as a nut again. Thank you so very much indeed Mr Kevin the machine saver.

omgggg thank you so much. I followed along, hit pause and replay about 50 times between expletive-laced rants, holy cow, the timing adjustment fixed my machine. Thank you!❤

Followed this today for Singer 4454. Worked out well. Thanks! My wife has only used the machine a few times and it got thrown out of time. Working now. I did not test it pulled apart but I got lucky. Great Video!

I usually work on Sailrite machines, so I was a bit timid to dive into another brand to repair for my mom. It ended up just being the simple needle bar adjustment and everything is working smoothly now. Thank you for such a comprehensive video on setting the timing

Thank you for your time teaching us how to care for our new machines. I know I'm very grateful. I live my new 4452. I'm still going WoW! It's a far cry from my 66-16 1952. I think I just just going to use it for basting and general straight stitching. Now I have a 66-16, viking 250, 4452, and an server. I think I have all the tools to make anything I want to make.

After spending over an hour trying to fit the bobbin case back in my singer 4452, I found your video! Thank you for explaining how to loosen the screws to put it back in. Every other video I’ve seen doesn’t explain this!

Thank you for posting this! The timing on my sewing machine became ridiculously off after I hit a pin directly with the sewing needle. Your video was the most helpful and understandable compared to the others out there. Saved my sewing machine!

Mr.Kevin after a month of trying to fix my machine, your video was the exact thing I needed. Thank you for all the detail and close ups. You saved me money and time to get my machine fixed. My new favorite hero is you. Have a wonderfully, magnificent, spectacular life and may all your wishes come true!

I was having a problem with my 4452...but after viewing your video, my problem was quickly resolved...and I learned a lot about my machine than Ide ever expected...and I did it myself...!...Thank you...!

Your video helped me get a 4452 going that I just purchased at Goodwill for $19.99. The upper thread kept getting caught in the bobbin area. Those two screws were loose so I followed your instructions and held that piece up and out when I tightened the screws and now it works perfectly. Probably was the reason the old owner got rid of it. Thank you Kevin.

Kevin you are my savior ! Only the first 10 minutes of your video help me to solve the problem, you are simply the best ! Greetings from Oslo.Ciao !

You are an absolute Godsend. Never would try to fix my machine til I watched your video. Thank you so much, all the way from Ireland 🤗🇮🇪🍀

Thank you so much for making this video, my singer 4423 had jammed, I followed all the steps and I have finally managed to fix it. I had to stop every step to get all the tools. I have learned a lot, it took me a month to fix it but I finally did it. When I was stitching checking if it timed, I wasn't closing the bottom cover, the thread was getting wrapped around the gears, and it was making a very loud sound. I couldn't see it because it going right under the felt between the gears. So now I understood why Kevin was closing the bottom cover and opening it up to adjust it. So follow every step in this video and you will go no wrong.

Thank you! You're an excellent instructor. You go slow enough to follow and explain each movement as you go. I really appreciate that. Merry Christmas & Happy New Year "23

Great video Kevin, you repaired my sewing machine, you're skilled, patient, knowledgeable, truly helpful. Thank you so very much.

Thank you so much for making this video. My machine was skipping stitches. I learned from you how to adjust the needle depth so now it picks up the thread and no more skipping stiches. You saved me a bunch of money on repair or worse replacement.

Thank you. I was about to throw my new machine off the bridge. Nearest Singer approved repair is 400 miles from home. You're great, I'm back in business.

This is an excellent video. Thanks so much for walking us through all of the steps to solving common problems -- I have no doubt I'll revisit this video countless times in the years to come!

Thank you sooooooo much! I am new to sewing and had to troubleshoot my stitches. Found out that my bobbin tension was too loose. I was able to fix that problem and tune up my Singer HD4423 thanks to you! Works like a charm now.

Just bought this machine, and I tend to buy things once and maintain them forever. This was very helpful. Thanks!

I thank you so much. I have the Singer Heavy Duty 4423 and only use it occasionally for heavier projects. Sewed some canvas for corn bags for a corn hole game...machine nested up under bobbin plate a few times..still sewed. I put it away. Took it out to sew more canvas for a bag and it was making a noise..I looked at it and determined the timing was off. Asked hubby to fix it and we found your very informative, spot on video. Now she is sewing like she should. One comment said..you empower me..I agree.

Love this Kevin... I just have started sewing and you have been my Guide... and being in the Automotive business I love how you worded this Video... Thanks for what you do and you made my day.

The little hook you adjusted at 31.13 is the bane of my existence! Thank you for this excellent video.

Thanks Kevin, now I know how to properly oil and grease my machine, also I just adjust the needle height which I didn't know could be adjusted, you just make my day. Thanks again for taking the time to teach us how to do it.

All I can say is omg omg this was the best video I have ever seen. . Each step was so well communicated. I learned so much from you . If I could hug you I would. I am making sure to download this video and I subscribe to your channel. Love and respect. ❤

The mechanic fixed the timing on my less then 6 month old 4452 ( he said - not heavy duty) for no charge. He assured me it WILL happen again. No free ride next time tho, so thanks for this video. Very clear & easy to follow. Thank you so much!

Thank you so much. I just bought one of these off gumtree for really cheap (quarter of retail price), with the timing out. With your video i've made it as good as new, at close to zero cost (just had to buy the grease + oil) !! Much gratitude

Kevin, this is an amazing video. You made it easy to follow along and I was able to reset my bobbin timing. Very happy because JoAnns said its usually cheaper to buy a new one than fix it.

Thank you for having this video my singer HD 4452 a great machine for everyday sewing not really heavy duty but it does get some things done. I have my Singer 31-15 completely apart, and waiting for a few parts to arrive so I picked this one up and have taken it apart a few times to clean it out, and oil but I wanted to make sure I hadn't missed anything. Great video! You have a new subscriber.

I took mine apart and cleaned and oiled it. I saw another video the other day. Tonight your video popped up . I'm glad I did some things right according to your video. Anyway, my machine is all put back together and works fine. Thankyou for this great video. I will save it for reference.

Hello Kevin, Thanks very much for this very helpful video! I have a Singer heavy duty 4423 and it has never had a problem in it's 8 year life. I love it! However, it went dead head on me (hand wheel wouldn't turn, everything was locked up). In all those 8 years I never had it serviced so that was why I'm sure! I watched this and lots of your other videos and did everything you showed in them: i opened up the whole machine, got out all the lint, oiled and greased every moving part, and also loosened some of the screws to unlock the place were it had seized. I don't actually know where that was, but it got to working again, and when I put everything back together, everything retightened, it turned and worked except there was no stitch! That was when I watched this video again and adjusted the timing with the hook and needle, just like you said. I also watched your other post on adjusting the tensions on top and bottom, and did that too. Now I have the machine stitching ALMOST perfectly, but only straight stitch and only in the middle or far left position of the needle. Problems are, even as good as it gets there will be one or two missed stitches every 10-20 inches or so. Also it is cranky about the needles I use (it doesn't like a brand new one identical to the one it does like), and it refuses to do a zigzag stitch no matter what, eitehr doing a terrible straight stitch in place of it, or skipping so many stitches that it looks like a dying heartbeat! It will not stitch at all in the far right position. I don't see any problems inside (opened it up and looked thoroughly at it again). I have worked and worked at it (desperate to use it again!) but maybe this is just a problem with a diy-er tinkering so much with such a delicate machine! Can you give me any ideas? I'm pretty stuck and have now invested a lot of time into it! I could replace the entire bobbin case to see if the bobbin case is ruined in some way that I can't see. Anyway, I'd take a video of it or pics if that helped. Thanks for your consideration!

AWESOME directions. Thank you so much for your step by step and explaining everything as you went along. Extremely helpful.

Lol I saw the Dritz stuff in the background ...was a tool and die maker there, job ran out when they ran-off to Malaysia with the manufacturing, they only package the stuff here in the USA now. LOL when I go into walmart I make it a point to not buy any of their stuff now. It would be nice if Singer would re-polish their name and get their butts out of china... I would gladly pay another 150 bucks more above the current price for a heavy model series, knowing that Americans were keep their jobs. Great tutorial on that Singer!

Hi Kevin. I can’t thank you enough for your time and dedication. Your explained everything in a way that was easy to understand and apply. Greetings from New York City.

Fantastic video!! I just fixed my machine with this information. Saved me an (expensive) trip to have my machine serviced. Thank you for the detailed explanation Kevin!!

This has been so helpful. Time saving and money saving when you can do it yourself. Thank you!

Thank you so much from the bottom of my heart. This video sooooo helpful. God Bless you for your kind sharing of this very important information.

Thank you so much for this video. I was about to give up and put her in the shop.I have been trying to figure out why my machine has been acting progressively worse over the past few months then finally gave out. You are a life saver because I sew as part of my work. 💖

Thank you Kevin. I don't have anyone in my area who will work on this machine. Before Covid it would have been about the same cost as a new one anyway. You empower me!

I really appreciate all the videos you do and your knowledge of sewing machines. I never subscribe to patreon etc, but your channel I would.

This is such a helpful video and I really appreciate the link to the service manual. Thanks so very much. :)

Thanks Kevin!!! You're the man!! I don't even know how this happened but my timing was off as well. This is a new machine!! But now I need to figure out bobbin tension. I got the needle and timing down. 😅 do stressful!! You've helped out a ton!!!

You have the patience of a saint. Thanks for the video. I couldn’t get mine to work but I’m sure it’s just me. You seem to know what to do very well.

Great video, thanks! I had tried to adjust the hook before without adjusting the needle and I couldn’t figure out why it was so hard. I put this video to my husband and together we have solved it, thanks!!

Thank you very much, this video was very helpful after I bent a needle and knocked the timing out of whack

I had that issue with the gear still binding even after the 3 screws were loosened, but I was able to free it after a while of fiddling with it. Wish I had seen that comment. Oh well, I got it done regardless! Thank you so much!

I really learned a lot on how to fix the Timing on a Singer Classic. The important thing is that after the major areas are adjusted, there likely will be more mini adjustments. So, it was perfect to have the mini adjustments and to checking with a zig-zag, and a straight stitch at the end.

This machine is identical to my 1980's/90's Kenmore 22 Stitch machine. Thank you so much!!

Thank you 🙏🏽 so much. Iv been trying to fix my singer heavy duty for hours. Stopped working in the middle of a project. This was very easy to follow.

Very careful and methodical. Well explained. Well done.

you did a great job I have two 4411 and 4432 and I love them thank you Joe Brandau

Thank you so much! Your video was terrific! I was able to follow your clear steps and fix my friend's machine! Thank you! Thank you!

Good & confounding grief! My Janome built (90’s) Kenmore [which I’m onlyONLYonly-just learning to use] likely has multipleMULTIPLEmultiple shenanigans. The ‘hook’ is capturing but not releasing the thread. Additionally, it was the looping/bird’s nesting bobbin threads + hopping & bopping in concert, rocking the casing. I’ve adjusted tension here to yon and I just don’t yet know what the complete hey I’ve yet to well learn! Aaaaarrrrrgh. I’m going to look into ‘timing’. While ThisTHISThis wonderful offering is today a bit over my head I’m learning MoreMOREMore each day. I’ll be studying so thank you SO much Kevin! ~ Shannan

My 4423 singer was hammering.the bobbin housing was slipping past the bobbin housing stop spring.two screws unloosened and spring pushed forward and retightened.works like a champ now.

Thanks so much for the video. My husband was able to help fix my sewing machine that I couldn’t after trying all the basic trouble shooting from the manual.

Hi .. thank you so much for this video. I have a Juki HZL-LB5020 that was off ..adjusted the timing as you showed … timing is good now but for some reason my stitch lengths are off … when I used the 2.6 before, it was just the right stitch length… now for some reason my stitch lengths are off .. how to I adjust this. Thanks.

This is exactly the video I need to fix my machine! You are saving me (hopefully) from having to replace my machine or bring it someone to pay and outrageous diagnostic cost on top of repair! I will update when I attack my machine!

Thank you for this video! After loosening the 3 Allen screws on the bottom my bobbin will only move freely about 45 degrees back and forth, any idea what could be jamming it? All 3 screws are lose, there is plenty of play within the 45 degrees...

I thought my timing was off but it wasn't. I did learn how to maintenance my machine however. Thanks for such a comprehensive guide on the areas to care for and what to look for in troubleshooting timing issues. Much appreciated.

Thank You very very much for full instructions.

Great video, really detailed and helpful. We have a problem with the button for the drop feed dogs, after using it the feed dogs would no longer come up to regular sewing position. My husband was able to toggle the switch under the machine to make the feed dogs return to regular sewing position, but something is broken, any suggestions would be appreciated. thank you

Great expertise , very informative and educational . I enjoyed it very much. Certainly the best video of it's kind. Thank you

Thank you!! Exactly what I needed, I was able to break and fix my sewing machine within the same hour.

Thank you so much. Finally understand my timing problems.

A small paintbrush about 1/4" wide applies grease easier. A very good video, thank you for showing all this.

Hi from Argentina been following since I got My heavy duty, wonderful channel 👏👏Thanks so much for posting this vídeo my machine works well but I'm always afraid my machine could go off time. This I'll hace handy just un case.

This video helped me sooo much! Thank you!!!

Hi Kevin. Thank you for your video. I have done all the adjustments for sorting the timing and when I look at it the hook catches the thread easily on both sides of the needle adjustment. But when I put everything back together and sew a zigzag it sews straight stitches but misses loads. Same with straight stitch it still misses most of the stitches, but looks ok when I take it all apart. Please help

Sounds like you should create a kit for those who run into issues with their machine. Thank you for sharing I appreciate your time

Thank you so much for this video. I have 3 Singer HD machines, the classic and 2 HD 6800 C's ( I was sent 2 machines when I ordered only 1). My bottom stitches on my HD Classic (Mechanical) were off. I cleaned, changed the needle and thread, but it was still off. I watched your video adjusted my tension and set my bobbin holder back in place and tightened the screws on the needle plate. I think using the walking foot and putting my machine down lower (adjustable table) "shook" things up too much. Stitches good now.

So glad I found your site. I have a 4452 model. I have a lot of trouble with skipping stitches when using zig zag. Also the bar right above the needle, the thread never stays behind it, I thread and rethread. I would appreciate any help. Thank you

Thank you man!! Your guidance helped me big time!

hi cavin that is the same trouble that what im working on and i find out that the feed dog gear is worn out i did i just few many times it come back the same always miss the timing....

Thank you great video, I done the timing but somehow its skipping stitches on a straight stitch. Any idea where I should look next?

thank you so much i was too rough on my sewing machine and then got the timing off i appreciate you very much for helping me fix it

Thank you for the video! I was able to fix it so that the hook is able to pick up the thread on widths 1 and 6 when the bobbin is not inserted. But when I put in the bobbin for some reason it doesn’t pick it up at width 6. Do you have an idea what might be the reason for this? Thank you!

Thank you so much! Very helpful and easy to follow.

Your videos are very very helpful! Should this work the same for computerised Singers? I've got hd6805c. Tried gently to do everything thats in the video, but could not get bobbin holder totally loose. It would move back and forth like 1 cm only and there I miss 3 mm to get perfect timing

Best tutorial I’ve seen yet!!

at around @13:40 i couldnt seem to get those allen screws out they seem stuck, any tips? i used the same tool you did but it didnt go off that easily

Thank you for your video ! I’ve been having a tough time with my new sewing machine. I had the motor lock up, machine froze with the needle in bobbin area, and the needle got stuck in the bobbin case. Now when I sew there is a clicking sound and my stitches aren’t right and i think tension is off! Any advice or ideas? It’s greatly appreciated!

This saved my butt alot! Thank you very much on this

Thanks for answer,i have a problem with sewing machine Husqvarna 400 : this machine was closed for many years in the wardrobe of my mother I cleaned all parts and greased gears,oiled where needed,but when i sew ,the thread clot under the fabric and broken near the needle.What can adjust? Can you help me ? Thanks for all Giulio

Great video!! Thanks for service manual!!! I've had that nesting issue with mine too and it was a few times after cleaning and putting bobbin case in wrong/the holder bracket for it. Not sure how I fixed it. I just always took it all back apart and put back together. Then it works haha

Thank you Could you by chance show the needle bar clap you adjust? In the manual there’s an upper one that my machine doesn’t seem to have. I’ve gotten it working though more or less, but have noticed since correcting the timing, my tension wheel has to be substantially higher. Before I’d regularly use it around 5, and. Im having to use it almost fully maxed out around 7/8. Is there a way to internally adjust the tensioning?

This model is the same 4432 to adjust timing. My when I loose the screw like you did my didn't move at all. What caused the problems? Would you please let me know. Thanks

Hey Kevin!this is such a well explained video! I just changed the timing and it loops when I turn the wheel and catches both stitches for the zig zag but when I sew it only catches the straight stitch... and not the other right stitch! I'm assuming it's still a timing issue?

Kevin at the upper part with the two-part which drive the needle downward, I loosened both parts and can not get the needle to go downward. Either it slips or locks. Can you send me a screen shot of what the correct position should be for tightening the upper needle drop?

Hi Kevin, sorry to bother you, i have a singer 9015 sewing machine and the motor runs ok when the clutch is engaged for the bobbin winder but when switched back for the needle the motor does not respond it try's to move but don't know why it wont move, all the mechanical parts seem to move ok when turning by hand i also oiled the parts just to make sure and still nothing can you help in any way. Thanks in advance M

Agree with all other comments! Super helpful. I find timing a huge issue with this machine. Especially after “heavy duty”sewing. Such a disappointment!

This is an amazing tutorial!. You just saved my marriage!

After breaking a needle i see the bobbin case pulls my needle to the side and makes a loud noise when the needle gets freed from the bobbin. This means I need to adjust the hook timing like you've showed, is that correct?

Thanks so much! I hurt my machine by not moving the needle to the side with a narrow presser foot. hard. I just did the needle height part of this and the problem was solved. Very grateful seeing i just got it back from a service 😊

23:53 when i loosened the black peice to fix the hook it only loosened slightly, then as i was messing with it, it stopped moving at all. i even took all three of the screws out and the black piece just wont move on its own, its snug with the bar its on. even when I'm trying to move it directly or by the hook up top it wont move. not sure what i did wrong or how to fix this. if anyone has advice that would be great. there's no dirt or anything blocking it from what i can see