Gregg From Keystone Sewing

This is the 1st I've heard that someone thinks that the hook on this machine will slip or come out of time more than any other. The 206RB is a tried and true sewing mechanism. Except from where we time the machine at handwheel to the hook, every shaft falls onto a flat spot on the shaft with a flat point screw or V ditch with a ball point screw. See attached, these three screws are where we time the machine at.

Groz Beckert has a 265 system in 120NM Schmetz has system 265 also in a 120NM This appears the largest size for both brands in this system.

See attached, this is the current Ferdco Pro 2000 version, made in China based off of the TSC-441 . Not to be confused with a genuine made in Japan Juki model TSC-441 shown in an image above in this thread.

This is the fun part, where we get to be creative.

DNX1, that's more like a bag closer needle. Some of the older Juki books did contain errors, for sure their old LG-158 book.

A regular flat head screw driver works every time. It's not cheating if you put the hook base into a bench vice to be able to have a solid base on the screw. This can help a lot.

Here the three are here, the variance is 0.1mm, 0.2mm and 0.3. The 0.1 is like paper and not worth buying, but the others sure are. Not sure how someone can even setup some Adler zig zags or clones that uses this setup without the spacers. I have the part number and thickness information at work, I'm at home.

I'll bet the needle set screw is blown out, and the 'fixed it' by using instead a needle clamp. Not a bad way to do things unless parts start hitting into each other like they are. I would order a new needle bar with a new set screw, and don't forget any needle bar thread guides as well.

I really can't tell, but the image of existing presser foot looks like top of the shank is hacked off to make it work? Also, I really can't tell if the new feet are correct for the Pfaff 145/545/1245.

On a side note...looks like I found a new supplier for 50mm pulleys. I pay A LOT more than that right now for a cast aluminum pulley of this type.

Thread Pitch and Dia. 17/64-24 I use Singer part number 200006 screw for mounting the hub onto the top arm shaft end.

See attached, hope this helps.

Consew 206RB, RB-1 and -2 were ALL made by Seiko. 'Seiko' will be embossed on the bed of the machine, that is how you can tell. Your may be correct in wondering if this is a genuine Seiko/Consew. Many Consew's had that rectangular logo, the oval painted white/red Consew logo you have, and some 206RB-5s have 'Consew' painted blue. This is not a good indicator. It could, also be a copy from Taiwan http://www.chikon.com.tw/ck-8bl.htm

Good question, I have no idea. I'll see what I can find, if anything.

That's the walking foot climb mechanism on the 211. The stitch length regulator has both the stitch length and safety clutch built into the same mechanism. It's not my favorite design and can be very confusing to the end user even when it's working correct.