How to Disassemble your Chinese Sewing Machine

How to take apart your Chinese hand-crank sewing machine.
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[@JB-uj8mz]

I just got one of these and I watched this video and for the most part it’s all still relevant . There were some hardware “upgrades “😂 in the form of screws for the springs instead of just pins holding the ends. Mine is green vs. your kind of red here and there 😂. Thanks 👍🏻

[@user-vi8so6qi2v]

Hello from Vermont. I’ve been checking out your videos for years now without one of these patchers and I stumbled across one at a scrap metal yard as it was being loaded into a crusher. The operator got out and charged me $10.00 metal weight. I’m planning to rebuild her

[@flaviosealant8046]

Gonna be exciting watching this in reverse soon!! 🤙

[@renegade2556]

I appreciate not only your voice, but the entire key in the videos is the picture of the position of the shuttle when it stops turning counter-clockwise and the downward direction of the needle. Depth of the needle also. had to adjust the cam timing slightly also. I was lucky to set it up properly the first time, but hadn't cinched everything down and broke a needle and that threw everything off. leaving it sitting there for two years did not help it repair itself. Finally found the time . Ten or fifteen minutes of Watching the thing and Identifying the cycles and setting the shuttle was key, but setting the cam timing wrong helped me to set it right, and I'm way down the rabbit hole of mods on this thing as it works like a charm! Thanks!

[@philip914]

Thank you so much for your time and effort. Truly appreciated .

[@stephenkaufman1059]

I just finished this video and I'm so excited to get started on my new machine. Bummer is, I have to work tonight so I have to go to bed now. Thank you so much Harrison! I will be watching all your videos at work tonight lol!

[@rickr9055]

Great video, very well done.

[@andressantiago5637]

Dude I followed all your videos and I did all the adjustments ,sanding smoothing. And it works like a son of a gunn. Thanks for the videos

[@Gwood232]

Excellent. Thank you for the quick response. That is exactly what I was looking for. Thanks again and keep the videos coming.

[@MainelyAcresFarmBrooks]

Thanks for commenting and will do!!

[@coryboyd7958]

I use a small magnet to remove the bobbin etc.

[@MainelyAcresFarmBrooks]

Good deal, thanks for the tip.

[@crp9347]

Thank you, very helpful.

[@MainelyAcresFarmBrooks]

Glad to hear it!

[@terryevans6625]

I have a project coming up that involves a lot of leather stitching. I don't know how to sew, but i love learning new skills. One thing I might mention is with the advent of cameras in cell phones, before you disassemble the sewing machine, take lots of pictures so when the time comes to reassemble you know what it original looked like. Great video. Thanks. And I will subscribe to your channel.

[@MainelyAcresFarmBrooks]

Very good idea!! That's the main reason I shot the video. LOL

[@davidshadow2121]

Thanks, I'll try that

[@caseyjones8477]

Thank you!

[@haroldstrawderman309]

Great video, just recieved mine in the mail and jumping into a full tear down for cleaning and a fresh coat of paint......mine is in ROUGH shape but not for long

[@MainelyAcresFarmBrooks]

Right on!

[@timpinxteren]

Thank you for all of your clear and informative video's on this sewing machine! I make knives, and it always is one heck of a job to stitch those leather sheaths by hand. Your video's encouraged me to save some money to buy me one of these, I recon it will save me a bunch of time and my fingers 🤣👍

[@MainelyAcresFarmBrooks]

Yes, it will!! If you order one you should join this Facebook group: facebook.com/groups/1646031288779869/ They have tons of info on these machines.

[@henrysuchard5612]

Thank you for making this invaluable video. If only reassembling were as easy :-/

[@MainelyAcresFarmBrooks]

I am going to make a assembly video soon. Thanks for commenting!!

[@darrickmiller1713]

Thank you for the informative video

[@MainelyAcresFarmBrooks]

Glad it was helpful!

[@srkwc]

absoloutly great you wounderfull asset to society

[@MainelyAcresFarmBrooks]

Thank you

[@critical_mass6453]

excellent!!!!!!!!!!!!!!!

[@BensWorkshop]

Many thanks. I wonder how the needle loop passes under the bobbin carrier.

[@frododavis9082]

Thank you Sir, I have watched your videos, and am able to tear my machine down preform maintenance and reassemble with out pulling my hair out.

[@MainelyAcresFarmBrooks]

Excellent!

[@Road_Rash]

Awesome! I plan to break my machine down & do a lot of cleaning, filing & put a better paint job on it so it doesn't look like such a cheaply thrown together mess. Of course I'll need to do a few projects with it first, but won't be long! Lol!

[@jimmiekaub4199]

Thread breaks at needle after 1 or 2 cranks. It did stitch then thread started breaking. Is here an adjustment?

[@MAINEiacGrammiesHomestead]

Interesting 👍✌️☮️❤️

[@MainelyAcresFarmBrooks]

Thanks, MAINEiac Grammie!! 😊👍

[@MichelClavette]

Harrison, for your next Q&A, could you show how to diagnose and adjust the bobbin and top tread tension in order to get the knot at the middle of the material being sewn? My machine came with /69 and when I stitch leather, the bobbin thread is very loose so as the knot coming out at the top of the material. Great video series!

[@MainelyAcresFarmBrooks]

Thanks for commenting and I will do. I have a few more topics to cover on my latest video and I will get it edited and out soon.

[@lonniechartrand]

At the 8:06 mark an easy wat to grease those ball bearings is to use a chainsaw bar nose grease gun.

[@RaulRodriguez-vk2kz]

Halo there, I just wanted to tell you that I have my machine today, and ges what? It looks terrible, but thanks to all of your videos that I been watching I think that I can solve the problem, I'll try again tomorrow, thank you so much, please keep helping us with them.

[@MainelyAcresFarmBrooks]

I will do, thanks for commenting

[@moonolyth]

​@@MainelyAcresFarmBrooks Wash that puppy off with break cleaner first thing like a bath to get rid of all debris on slides etc. well worth filing sanding and bending into shape. Not a thoroughbred but what a little mule, best bang for your money !

[@slkride1]

The gears you refer to are CAMS.

[@genevievelebelbeauchesne4939]

Thanks for the video! It is so helpful! I succeeded in dismanteling my machine and I want to clean the cast iron body. I found someone to sand blast it in cabinet but... I am not able to get the big open bearing out... Any idea or stategy on how I should tackle this?

[@MainelyAcresFarmBrooks]

I was able to pop mine out with a screw driver. After I remove the shaft, I took the screw driver on the back side to catch the back edge of the bearing, then hit the screw driver with a hammer. It took a few good wacks but I was able to get it out. You might have to work around the bearing to free it up. PB blaster or WD-40 helps to free it up too

[@crnazvijezda]

I tried this video in reverse and don't understad what you saying, can you record audio in reverse and put as secondary track? Hahahaha :) Thanks for video!

[@MainelyAcresFarmBrooks]

LOL I will get on it!!

[@earlschultz7880]

you must not be from Maine, cause I don't hear the accent, or in other words, I can understand what you are saying!

[@moonolyth]

I drilled a tiny hole in my bobbin shuttle now I can pull out easily with pointed tool also when I take the bobbin out I shimmy the crank while pulling on the bobbin thread and comes right out. Still a nu bi with this machine and a great addition to my Faff 130.

[@r.griffin7941]

A small magnet works for this too.

[@moonolyth]

I have a good magnet too. Found kit easier to use forceps, dental tool or tweezers with the added hole.

[@veronicastewart1959]

Glad I found you ! I have a question the 2 tension springs , well when I received mine I think mine is in the wrong place , so should I put it on the flat piece like yours ? Because where its at it doesn't make any sense to me ! I guess that's why the person sold it to me . Grease (black wheel grease) is all over it , so I'm wanting to try and fix it right ! Thank you for taking the time for us !

[@MainelyAcresFarmBrooks]

Thanks, for commenting!! Yes, I would move the tension disks to look like my machine.

[@HNXMedia]

I know this is an older comment, but my machine was the same way "from the factory" with the two tensioning "disk things" seemingly too close together. I had exactly the same question you did about moving one of them. Did you move yours and how dod it work out for you? Thanks.

[@RTOHIO]

Help. Subscribed. I disassembled the machine, polished all the parts, reassembled it by reversing everything in this video, and it runs quiet as a church mouse, but my walking foot does not walk. It stays in one spot and the needle goes through the same hole. What causes the walking foot to advance. It looks to me like the slotted short bar has a tapered bottom that the springs are supposed to pull the foot forward while the foot is in contact with the leather while the needle is in the up position. What did I do wrong to keep the foot stationary? You have an excellent series and I appreciate the time you have spent making it.

[@MainelyAcresFarmBrooks]

Hopefully this new video will help you out: kzbin.info/www/bejne/aKXPhWWmp75rp8k If not feel free to send me a message and we can meet up on a video chat.

[@patenglish1948]

Harrison, When the presser foot is situated for the leather to go away from me, the needle is centered between the presser foot. If I turn the presser foot 180 degrees, the needle is really close to the side of the presser foot. Is there an adjustment for this?

[@MainelyAcresFarmBrooks]

You can try adjusting the presser foot, but I don't think that will help because it starts centered. Sounds like a bent needle or needle driver.

[@veronicastewart1959]

Oh forgot to ask ! Where can I got springs and bearing from ? Thanks again for sharing !! :-)

[@MainelyAcresFarmBrooks]

I am not sure where to find springs and bearings, but I know the folks that who would: facebook.com/groups/1646031288779869/

[@geraldocuervo6640]

Would like to know where you get your Bobben and Bob. and Parts purchased a machine and they were smashedEnjoy watching your videos and help would be appreciated

[@MainelyAcresFarmBrooks]

www.bantamsaddletack.com/Sewing-Machinery_c_20.html

[@Bluebelle51]

mine came in pieces, I have to figure out how to put it together LOL also, I didn't get a "threading rod" nor did I get a stand, just figured that out watching the video

[@MainelyAcresFarmBrooks]

The stands that come with these machines are unstable and most people just throw them out. There are a couple good videos out on KZbin of people making wooden stands or attaching it to a table. For the threading rod you can make one out of some left over wire or you can order one here: www.bantamsaddletack.com/Threader-for-Chinese-Patcher-Sewing-Machine_p_56.html

[@Bluebelle51]

Thanks! I'd already planned to build a stand, but I LOVE having a parts source !!!!

[@rotdrache78]

Have you ever had a problem with top thread get pinched in the bobbin area and breaking off?

[@MainelyAcresFarmBrooks]

Yes, I have. I fixed my issue by adjusting the needle bar and smoothing things up inside the bobbin well.

[@georgethayer3533]

Hi brother I I really enjoy your videos brother I bought one of the machines and greased it like you said it seems to work pretty good the only question I have for you is 1425 leather 45 ounce leather what is the thread that you should use that machine came with I think 92 or something like that and I just wondering what what thread you recommend to use if you happen to get a chance give me a holler

[@georgethayer3533]

4 to 5 oz leather

[@MainelyAcresFarmBrooks]

It all depends on what your making? Does it need to be rugged?

[@mlogan53]

I took my machine apart after watching your video and got it all back together,at least I thought I did. My pressure foot no longer operated. It does not raise when I turn the pressure foot handle and it does not go up and down when I turn the handle. Do you know what’s,wrong? Thanks.

[@MainelyAcresFarmBrooks]

I would need to see your machine. Do you happen to have a Facebook account? If so, we can share pictures there so I can see whats going on.

[@notyodaddy1499]

Is the leaper assembly you are holding at 11:00 straight or should it be bent?

[@MainelyAcresFarmBrooks]

It should be slightly bent

[@Gwood232]

How do you know the bobbin rod is in the correct location when you put the hand crank wheel on for the first time?

[@MainelyAcresFarmBrooks]

Skip to 2:30 in this video: kzbin.info/www/bejne/j5vHlIxopdWrrq8

[@danacarter4021]

The lever to my presser foot is not connected, how do I fix this?

[@MainelyAcresFarmBrooks]

You will need to buy a bolt and nut to attach the lifter back

[@DarkNookShop]

what size needles does this thing take and what is the upper end of thread thickness it can handle without binding up?

[@MainelyAcresFarmBrooks]

It takes 16-22 size needles and the biggest thread I have used so far is the T-135 with a 20 needle.

[@DarkNookShop]

@@MainelyAcresFarmBrooks thanks.

[@davidshadow2121]

Thanks for your help--- could you send me a band aid ? -- just kidding -- got it sewing with your advice -- bantam provided the new needles--- thanks again !!

[@MainelyAcresFarmBrooks]

LOL, They should send out a box of band aids and a bottle of Tylenol when you order these machines. LOL The Tylenol for the headache these machines induce.

[@davidshadow2121]

@@MainelyAcresFarmBrooks --- Amen brother !!

[@shop99er]

The pressure foot on our has stopped advancing the material. Would the culprit be the sprigs at the top of the cylinder?

[@MainelyAcresFarmBrooks]

It might be the spring inside the sewing head or you adjusted your stitch length screw too far out or too far in.

[@davidshadow937]

My machine wraps the top thread under the bobbin case and breaks the thread on the first revolution. --- (using normal thread ) If I thread it up with Berkley fireline fishing line it will sew - but not with normal thread -- Any ideas ?

[@MainelyAcresFarmBrooks]

Ether the timing is not set correctly or the needle bar needs to be adjusted further down. (Using normal thread) What size thread? Bonded nylon? What size is your needle?

[@davidshadow2121]

@@MainelyAcresFarmBrooks thanks for the response-- I've got the needle post down even with the top--- the thread is 135 from bantam and also the lighter weight that came with the machine?? --- -- needle is what came on , size unknown --- the top thread is immediately jammed between the bobbin case and compartment wall or stuck under the case -- the opening in the bobbin case lines up perfectly with the needle as it starts back up

[@MainelyAcresFarmBrooks]

The needle that came with the machine is too small to run the 135, but it should run the thread that came with just fine. It sounds like the timing is set to the correct position. The only think I can think of is the needle bar depth. Maybe this will help: The issue may be that the needle driver depth is not set correctly. To ensure that your needle driver is in the correct location you’re going to place your index/pointer finger under the hole on the bottom side of the sewing arm. With your finger in place slowly move your flywheel in one complete rotation. If the needle comes through the hole and starts to drive into your finger you need to stop moving the flywheel or back your finger away from the hole. (I don’t want any negative comments with people piercing their fingers because they went to fast with the flywheel.) If that happens your needle driver is adjusted to low. You should only feel the tap of the needle when your needle drive is adjusted correctly. (When I say a tap I mean that you can feel the needle, but it does not hurt or poke through the skin. If you see blood then your needle is too low!!) If your finger is in place and you don’t feel anything; your needle driver is adjusted too high.

[@larswigenius6510]

Try a magnet.......

[@GottliebGoltz]

Don't they come with a Manuel? Thank You much.

[@MainelyAcresFarmBrooks]

The one I ordered came with a very simple manual that was not very helpful.

[@gmulnix23]

Is that large bearing removable?

[@MainelyAcresFarmBrooks]

Yes it is

[@lylemajeska7210]

I am having problems with my presser foot not moving when sewing. It just stopped moving after sewing many projects. How can I fix this?

[@hellkell8693]

Did you figure it out?

[@texflyguy]

Those two gears on the back are cams not gears.

[@MainelyAcresFarmBrooks]

Thank you again for the correction... I am so happy your around to fix all my mistakes on KZbin, without you I would be completely lost.

[@sistahresourcespeaks]

It is on the machine but it will not raise the presser foot.

[@MainelyAcresFarmBrooks]

I am not sure why that's happening. I would need to see your machine to help figure out that one.

[@sistahresourcespeaks]

@@MainelyAcresFarmBrooks I'll send a picture asap

[@rayderickson1152]

Ok, I messed up and lost my marks after removing the main shaft. Can you help?

[@MainelyAcresFarmBrooks]

I can take some pictures of my set up if you think that might help. We are on Facebook, so add us as a friend or send a message and I can share the pictures.

[@tshaulis]

@mainelyacres I emailed you about a problem I'm having, but I'll ask it here too. I did my initial disassembly to clean it and properly lube the machine. But when I reassembled, the needle does not line back up with the hole on the arm. It's taking all my strength to not bend the needle arm to make it work. Could you please help with my problem?

[@MainelyAcresFarmBrooks]

loosen the bolts under the sewing bar so you can reline the needle with the hole. Then tighten up the bolts with the needle lowered in the hole.

[@tshaulis]

@@MainelyAcresFarmBrooks I will assess this. Thank you. Also while I got you here, I've tried sewing with a 24 needle and 207 thread but couldn't get good results. I think this is the max it could go. I'm stepping down to a 22 needle and 138 thread which you seem to be doing well with. I can seem though to get my bottom stitch to tighten up and center through leather. The top looks great but the underside just looks like a straight line. Would the be the bobbin tension?

[@MainelyAcresFarmBrooks]

Yes, the bottom tension needs to be tightened up. I have had success with the #23 needle, but I was told that's the limit.

[@jonhunter8725]

Advice requested. I have been thinking about getting one of those machines, I have watched a lot of the videos on the lether patching machine & the upgrades people have done. Some upgrades people have done are quite obvious, what do you think of upgrading it to a servo motor like what _ BIG DOG FORGE _ did to his machine the title of his video is. Blacksmithing / Chinese Leather Patcher Sewing Machine Industrial Upgrade

[@MainelyAcresFarmBrooks]

Servo motors is the way to go!! I plan on upgrading my set up to one

[@aaronbrown7596]

I can’t get my machine to sew, the thread keeps bird nesting on the underside of my leather. I have the tension set to the max on my top thread. Please any help is greatly wanted. I have not been able to get it to sew since I bought it 6 months ago.

[@MainelyAcresFarmBrooks]

That could be a couple different issues. Check out facebook.com/groups/1646031288779869/?ref=group_header to see if anyone else has worked through that issue. If your not able to find the help, feel free to comment again and I can try to make some time to meet up with you on Facebook live chat.

[@aaronbrown7596]

Mainely Acres Thanks for the quick response!

[@mjoddi7701]

I have this same problem of bird nesting -- and please, I don't use Facebook so I hope to see an answer here. This is a great video, BTW, much needed! Even through I'm not doing the whole disassembly, the bottom pittman rod area disassembly hows me how to open it up and grease it. Thanks!@@MainelyAcresFarmBrooks

[@MainelyAcresFarmBrooks]

@@mjoddi7701 I am in the process of making another sewing Q and A , I will make sure to address your question. Thanks for commenting

[@mjoddi7701]

Thanks, that is great. I'd also love to see a re-assembly video that one could play during reassembly! I know from experience that some things are easier to take apart than to put back together. For instance, you popped all those springs right off, but how to get them back on? @@@MainelyAcresFarmBrooks

[@eazyrider6122]

Those gears are called cams. Good video but.

[@wolfsbaneslayer4043]

Don't act all surprised when yer persuasive self is kidnapped and forced to tune up all the patchers you convinced us to buy

[@MainelyAcresFarmBrooks]

LOL!!

[@coryboyd7958]

Those are not gears, they are rocker arms.

[@MainelyAcresFarmBrooks]

I get lost sometimes and forget what they are called. Thanks for the correction.

[@MateyGardelOriental]

the most dificult is to remove that friking paint