Constabulary

alright - checked the parts list and looks like the 328 / 214 was the needle for the 40, 43 & 44 subclass. So if yours is a 34 (mistyped?) then it takes System 88 and if it is a 43 then it takes the 328 / 214 needle. Confused?

Just checked again looks like they had a 8245 with 328 / 214 needles also. So it is well possible that your machine (subclass 43) takes 328 / 214 needles. BUT the 328 needle system is special cause different needle sizes have different needle shank diameters. Personally I never have seen a 8345 with 328 needles. A rare machine and I know someone who wants one - right. Glenn?

I think the Mod. 200 came in a subclass for 328 / 214 needles. Here is a list of sub classes for the 8345:

The only needle that could probably fit is the 332LG (this is the longer version of the 332 / 29x3). 332LG and System 88 have the same length BUT the 332LG has a slightly larger needle shank diameter than the System 88. So maybe they fit - maybe not. But to be honest I guess they wont but depends on the needle hole in the needle bar.

Well, the Singer Manufacturing Co. we know for industrial sewing machines is no longer producing industrial sewing machines and no longer exists. They stopped loooooong time ago, several decades ago I´d say. Basically someone has bought the brand name Singer and they are now marketing sewing machines but they no longer manufacture industrial sewing machines in their own plants and The domestics machines are for sure made somewhere in Asia. Singer nowadays is just a brand name among others. The head company is SVP they own the name Singer, Husqvarna / Viking and Pfaff. When it comes to industrial sewing machines don´t expect anything from them, they are just marketing "domestic or consumer" sewing machines but no serious industrial sewing machines (or do they?). All to my best knowledge.

just came to my mind - maybe the safety clutch has tripped or one of the timing belt pulleys is loose / loose set screws or the timing belt is a few teeth off.

This is where you have the slider (far to the right) This is where you want the slider (far to the left) - the further left the slider is the higher the foot lift. For moving the slider you have to loosen the wing nut or in your case the small lever on the slider.

I would guess this rather is a hook timing problem but hard to tell from the distance.

Move this slider to the left that in crease the foot lift. The further left the higher the foot lift. If that does nor help pleas post pictures of where the presses foot is mounted.

maybe its just the hook that is a bit close to the needle so the gap between hook notch and position finger is too tight. You can move the hook a tiny bit (maybe 0.5mm or so) to the right (if not already flush with the machine arm) by loosening the 2 or 3 set screws on the hook body. Better check the needle hook timing after doing this.

You are welcome - always glad when I can help folks with their old sewing cast irons

I meant renamed

Make sure the V-Belts are tight enough and do not slip. But anyway - servo motors are the best option nowadays. I run my Singer 111G156 with a 750W servo and small pulley and with a 1:3 speed reducer and it punches trough 10mm thick Mil Spec cotton webbing at slow speed - just saying... Back then I bought my JACK servo from College Sewing in the UK.

I´m in touch...

I just went trough my sewing needle records and found that NECCHi made a machine class called OPC. Maybe it is an abbreviation or maybe OPC was an earlier class and they later remanded it with a number system or the other way around - I don´t know. https://www.google.com/search?client=firefox-b-d&q=NECCHI+OPC https://cambriacuciti.it/negozio/aghi/aghi-industriali/aghi-328/ Hope this helps - sorry it it in German language:

But the NECCHI 643 seem to exists and the 110 is (as on other sewing machines too) the subclass that describes technical details or how the machine was set up when it once left the factory. However NECCHI machines of the Class 643 are quite rare as it seems. This is a NECCHI 643 but set up as darning machine: https://www.youtube.com/watch?v=zwdUIyglEnE Bobbins / hook for the 643; https://www.ebay.com/itm/124505097381 https://www.amazon.de/Shuttle-Haken-geschlossener-Rahmen-Spulen-Singer/dp/B07Q313P6S So I think the data plate on the machine "could" be right - not sure though. I have a 45K and I know the Adler 5 - they usually can sew 12mm leather. But it depends on how the machine is set up. The Singer 45K´s and Adler 5 usually have a much larger / heavier hand wheel you at least need a powerful servo motor (would recommend 750Watts) with small 50mm pulley and I personally would add a speed reducer as well for slowing down the sewing speed and increasing the torque. I`m can use needles up to size 250 (metric) but I seldom do I usually sew with 180 or 200 needles with 11/3 (metric) thread. The needle system on these machine usually is 328 or 214x2

I still would assume you need a larger needle or a thinner bottom thread and / or try a heavier beehive spring on the tension unit. If the former owner sewed fabric then the spring may be too weak. This is from College Sewing in the UK but you will find them on your end as well: https://www.college-sewing.co.uk/b3114-232-000-beehive-spring-heavy-juki-genuine.html When you haven lowered the foot on the material do the tension discs feel kinda loose or wiggly?

It´s a clone of the Singer 45K or Adler 5. It´s a drop feed machine w/o reverse. The Adler 5 or Singer 45K manual will work for this machine Since it is made in Italy I would guess it was made by NECCHI. So it´s a NECCHI 643-110 I´d say.

@pgc That is a great information - I love figuring what parts are interchangeable between different brand machines. Often the Japanese brands and a lot of nowadays Chinese made machines seem to have a very similar "standard" (if not the same) and are often Singer based. The gauge set you linked (just from looking at it) looks pretty much like the Singer 212 Gauge sets. Thanks!

I know like nothing about this type of patchers but I think LW Member @shoepatcher knows more. I just dipped my toe into the DURKOPP Class 17 machines and figured that they are amazing and I got mine to ~7mm long stitches. But the DURKOPPS are quite different to the Bradburry but I would love to see a front view of this one. My biggest concern would be if the machine has a functional shuttle / hook and matching bobbins. I´m not sure if other brands have interchangeable shuttles / hooks.

turn it away from you until you feel it will not screw out any further and then simply pull it out to the right. It may feel as if it will not come out - just pull... if not gummed. Its an approx 11.5cm long rod (~13.5cm total length) with a pointy tip. When you put it back shove it in and rotate it until it stops and then push it further in (will have some resistance) and then turn it in further. Do not hammer it!

You can also DIY speed reducers. There are many different versions on the forum. It just require some tinkering. https://www.google.com/search?q=diy+speed+reducer+site:leatherworker.net/forum

No mystery. It depends on what you sew (leather or fabric....) and how experienced you are as a sewer / seamstress. Speed reducers are not a must have but they make things (sewing machines) easy to master speedwise. I have speed reducers on all my 5 sewing machine setups. I still can go from crazy slow (leather or short seams as on box tacks on 1" webbing straps / ~10mm thick f.i.) to quite fast (loooong seams on canvas, sunbrella...) even with the speed reducers. Just a personal preference and IMO it makes the machines more versatile. If you don´t need a SR you don´t need one but I prefer them. Run your machine w/o a SR and if it is too fast change the pulley if still to fast and you need more torque (for thick materials) add a speed reducer.

The "coarse needle plate" allows needles up to #23. I usually do not go over #22 with my Singer 29K71. https://www.college-sewing.co.uk/82234-needle-plate-medium-coarse-singer-29k-71.html Keep in mind that it is a repair machine and not really a machine for the serious production of leather goods!

maybe the manual helps Rex Chandler 26-188 Singer 16-188 manual.pdf