Constabulary

If the thread knots do not pull through the material increase the top tension and / or lower the bottom tension or try a larger size needle. What thread and needle size are you using? Leather tip or round tip needle?

I can´t tell from your picture what is missing, check the parts numbers in a parts list and then check with a sewing machine dealer. Not sure if it is worth the money. Expect that it will not be cheap.

If you have a similar hook then it looks like this. The tension screw usually is held in place by a set screw so you have to loosen the set screw first (if your hook has a set screw).

Singer 111 and 211 parts are easy to get. The 111 type feet are wide spread al ot of other brands like Juki, Consew, Seiko... are using the same feet. Singer 111 and 211 share a lot of parts. Most sewing machine dealers should have 111 / 211 parts and feet.

maybe someone with a 562 and 563 can measure the distance between thread eye on the lever tip and the "bushing" on the outside - just to get a rough idea if there really is a difference in length or if it is just the more pronounced arc.... Just an idea... You at least need a different bobbin case opener and mill / grind down the corner of the thingy the opener is mounted to to make room for the larger hook.

pretty sure a lot people would like to convert their Singer 111 based machine to a large hook machine.

211G465 has no reverse therefore a longer stitch length of 7.3mm max., max. foot lift 12.7mm, large hook and an oil bath hook saddle. Thats at least how it should have left the factory. So basically the difference is the 465 has no reverse.

Juki 563 - for sure!

Just from looking at few pictures... regarding motor - if they work great if not do not waste time and money in this old clunkers buy a new servo motor instead - really! If I had to choose I´d choose the machine with the fewest electronically controlled devices! Why? Because they are OLD and the motors are "dead" and I don´t think they are not supported anymore. regarding singer 211G766 - see attachment Hope this helps I would probably buy them both refurbish them both keep one and sell the other one - maybe you break even and so you have the other machine for free or even make a profit

Seems I misread - I was on 120/3 (which is a thread size and not the needle size) #23 is a NM 160 needle so I was a bit off with my assumption of max. 140. If it can handle larger needles than 160? I don´t know if I were you I´d buy some needles and thread and test it! It is a clone machine - you never know if they are set up like the originals. Testing a machine before buying it is ALWAYS the best bet! In a German sewing forum someone is using 180 needles on a Pfaff 335 clone (Shanggong 335 or so) - seems it works but that for sure is pushed to the limits. Personally I would use needles up to 140 on machines of this class and everything larger from 160 onward I would use a different machine with barrel type hook (like Singer 45K, Adler 5, Adler 105 or similar)

Sorry to say that but for "just operating a sewing machine" this is a bit too much science for me. Pedal down force? Really? For what? Honestly I do dot care and I´m not event trying to follow all this. But as we say in German "Jedem Tierchen sein Pläsierchen" Good luck with this!

looks like the Wimsew 246 is a clone of the JUKI DSC 246. Juki website says you can use up to 120 needles but often a bit larger needles like 140 are possible (but I only can guess). Check the specs on the JUKI website: https://www.juki.co.jp/industrial_e/products_e/leather_e/cylinder_e/dsc2447_2457_2467_244_245_246.html

You can! I have it like that all the time. Never had any issues. Especially THIS forum really is!

well, I´d check the Mfg. web site and compare the specs . Guessing you are talking about new machines / latest models. http://www.consew.com/view/consew-model-206rb-5 http://www.consew.com/View/P1206RB

if you don´t drop it it will most likely never crack. Singer 18 also looks fragile but never heard of a broke arm from just operating the machine.

Glad you found the information you need. I hope I did not sound offensive but as a (quite) long time member here I figured more and more people don´t do the obvious first - like contacting a seller / dealer or even more obvious reading the manual. Now you figured why Have fun with your machines!

Who says that? It usually is a question of how the machine is set up and if the OP has read the manual. Have you read the manual? Its mentioned in the manual how to adjust the foot hight. And its the same process as on the Pfaff 545.

When your are sure the timing is right (see manual) then only the needle is left. Try what I did - maybe it helps. BTW - my NB does not have the timing marks either. just checked my OEM hook again - I have not noticed the # on the bushing - its the same as yours - see picture: EDIT: No camera stand, camera is a Canon SX-1 IS It has a super macro setting - old camera but works well (even shows how dirty my fingers are )

Now I know what you mean - issue could be the needle. Some have longer tips than others. I wanted to switch to 135x17 needles but it was not possible because they have longer needle tips and they are scratching the hook BADLY. So I had to stick with 135x1. I have different 135x1 needles and they slightly differ in the tip length. You can try to raise the the needle bar a tiny bit or grind down the hook body a bit (in worst case). Most 135x1 needles I have are 36mm long +/- a little bit but just the one in size NM 120 I´m using the most is approx 1mm longer. So I raised the NB a tiny bit and now it works. Hook is still catching the thread loop w/o skipping stitches. I still have the hook... let me check... EDIT: The OEM Singer hook base has the number 244014. Not sure what the number of the complete hook is. Can post a picture later today. EDIT II: see pictures. Needle are all from differen Mfg´s (Schmetz, Solidor, SNF, Singer) SNF actually is Singer too.

Its another Chinese made clone of the Singer 29K71 with the difference of an older type (simpler) thread regulator.

Post some pictures please

W/O knowing all the parts number but you probably have to move the hook and hook shaft bushing a bit. This is my 108W20 I also have a link to a manual in the 1st post. I replaced the hook with a non Singer hook (NOS hook but from a German Mfg - works very well) and I also had to move the bushing a bit. Hope it helps.

that would have been my 1st question too other than that I unfortunately never have touched a Class 18 machine so I don´t think I can help.

it´s a good idea to mention your country in your profile so people could probably point to certain dealers. Please update you profile. But seems you already found a source for the parts - what other information do you need? What kind accessories you will need depends on your work. I probably need other accessories than you and the guy next door needs something else....

where are you located? Essex in the UK? https://www.ebay.co.uk/itm/SINGER-132-K6-HEAVY-DUTY-SEWING-MACHINE/153660274459?hash=item23c6ddb71b:g:sQcAAOSwsVpdMGgU Other than Singer 132K - check for Singer 45K