Constabulary

Here is a parts diagram of the Adler 20-20 - hope it helps Adler_Parts_class_20-20.pdf

I may have a hard copy of the 20-20 parts list, not sure though. I´ll check that in the days to come... stay tuned... 😉

cannot edit anymore. Here are some pictures:

They have arrived! Took 10 days from China to Germany and no extra charge. I´m using them on my 111G156. First glance.... The "fork" foot set works fine and line well with my feed dog - no issues. The right toe foot is touching the thread guide but the one I have installed is not the "original" one I have one from a 211 so that is on me. The left toe foot does not fit into the foot bar. The end that goes into the foot bar fork is a bit thicker than on the other feet It also has a different finish, the other feet fit well. Maybe I´ll do some grinding but I´ll check with the seller first. The scissors are sharp a hell. I ordered them for just having a pair in my tool box. REALLY SHARP!!!

seems I´ll get my order within the next few days.... curious me is 😉

since you are in the USA I´d contact a sewing machine dealer in you area. I´d probably check with Toledo sewing machines https://www.tolindsewmach.com/parts.html They for sure can get you the parts you need or even have them in stock.

Be as you are - why faking around on dates? No rules IMO. If it´s not working then its not working. Was not working at the 1st time, right? So do not put too many expectations into a date, let it happen and see where it ends. You never know (as you have experienced). Just don´t be rude and not excessive friendly.

here is a parts list that tell you what it originally was designed for. Its basically is a tailoring machine that is surely able to sew some garment leather. if it need parts google the part numbers or post pictures of your machine so we try to figure what could fit from other machines. Feet seem to be the type that is used on 107w, 143w, 457w and so forth (straight stitch). singer 150w104 parts list.pdf

machines can be set up for different needle systems by adjusting the needle bar height but I would start with the system that the manual states. when you have figured the system make a small sticker that reminds you of the needle system and stick it on the machine somewhere. beside that needle bars rise a little bit with the time so maybe it needs a little adjustment of the needle hook timing / adjusting the NB height (most likely lowering a tiny but).

Singer industrial machine serial numbers are always stamped into the machine body. "Chinese sellers" sometimes mix up TE-6 (left stand) and TF-6 (right stand). IMO you need parts of a TE-6. Here is a SEIKO TE-6 parts list, maybe it helps to figure more. PARTS_TE-Series.pdf

I think it is just another poor translation from Chinese to English or German. 8B IMO is referring to Seiko machines like STW-8B or CW-8B. Some chinese Co's using the 8B in names for similar machines. I don't High Carbon steel is used for these feet.

roller foot is not the same as walking took with a walking foot you can sew other thicknesses much easier. So it depends on your work.

Just wondering what prices are shown to the folks in the US (due to tariffs and stuff). F.I. the double toe set is 11.19€ + 4.03€ shipping on my end - thats approx $17.77 I have ordered a complete double toe set, a single left toe foot and a complete right toe set for 36.98€ incl shipping and VAT - thats $43.18. (EDIT II) and a pair of scissors is included too: https://de.aliexpress.com/item/1005009076526433.html? Not sure If I got charged with other import fees but yet I have not paid anything on top when I ordered on AE. They seem to "re-pack" the orders when they arrive in the EU so my shipping labels so far had a EU sender on it (yet). EDIT: I think I posted these 153w / 227R / CW-8B needle plates earlier but I´m not sure: https://de.aliexpress.com/item/4000301291692.html I think I haven´t seen the "left sided plates" elsewhere.

I ordered them too. But I already have these https://de.aliexpress.com/item/1005009586815180.html but paid more back then. So better to have than to need 😉 2 more pic for the records

Just found on AE, not that everybody needs them but quite interesting I think. Look like the 441 feet - kind of. 😉 https://de.aliexpress.com/item/1005008690407406.html? I´ll order them, I think.