Consew 206rb stitch length not adustable question

[olivermarks]

The feed dog looks a bit weird in that video because I hadn't adjusted it back after changing height etc to see if that was the issue. I'm still unclear what shifted and why so I no longer have max stitch length. At least I'm learning more about the wheel end of the machine!

The forward and reverse stitch lengths are identical, i don't wan tto mess that up too. The machine is also sewing ok, no major issues.

Edited March 26, 2023 by olivermarks

[olivermarks]

Can anyone tell me what will happen if I loosen these two fasteners marked with the two arrows?

They are the base of the stitch length lever.

 

 

I am still trying to get the maximum stitch size back! My machine is running like butter - I've reset just about everything to tolerances but still not getting the maximum length. I have been sewing with the stitch set at max, and occasionally the stitch length lever gives a little jump when I start sewing, which is odd. Still trying to figure out what, where, how...

I don't speak Spanish, this video seems to be talking about what to adjust, not 206rb but looks useful?
 

Thx

 

 

 

Edited April 1, 2023 by olivermarks

[Gump]

I have a Consew 227r that uses the same lever set up, and on the inboard end of the lever is a set screw that holds the adjustment lever in place. On mine the shaft can slide in and out, changing the amount of available adjustment. I slid mine in and now have 5 spi. My machine also has the handle pointing the other way with grip ribs pointed up, so your machine may have been tinkered with before.

[1hp]

looks like photo in manual.

[olivermarks]

Thanks. 

do you mean the adjustment inside the machine behind the stitch length lever circled below? I'd better take that apart and check it

 

[1hp]

looks like they mean move lever to desired stitch length and tighten knob "M".

[Wizcrafts]

33 minutes ago, olivermarks said:

do you mean the adjustment inside the machine behind the stitch length lever circled below?

NO! The stitch length is set by the knurled round nut ON the stitch lever, on the outside of the machine. Turn it counterclockwise to increase the maximum stitch length, then pull the lever down to set that length. turning the knurled nut clockwise will shorten the maximum stitch length and move the lever further up.

[olivermarks]

50 minutes ago, Wizcrafts said:

NO! The stitch length is set by the knurled round nut ON the stitch lever, on the outside of the machine. Turn it counterclockwise to increase the maximum stitch length, then pull the lever down to set that length. turning the knurled nut clockwise will shorten the maximum stitch length and move the lever further up.

I've been using the knurled 'M' round nut for years to change stitch length. It's one of the most basic functions on the machine. The issue is that the functionality of the stitch length mechanism isn't working properly and I'm still trying to figure out why.

[Wizcrafts]

22 hours ago, olivermarks said:

The issue is that the functionality of the stitch length mechanism isn't working properly and I'm still trying to figure out why.

Maybe these manuals will help, if you don't already have a copy.

 

Consew_204RB-1,_206RB-1,_208RB-1.pdf consew_204_206_208.pdf

[Quade]

Trying to picture in my head how moving the stitch length lever up and down changes how much the feed-dog bar rotates.   Does it change how much the forked rod, that goes into the upper shaft eccentric moves up and down? Or is it back and forth? 

I'd probably try to observe how changing the stitch length lever changes how much the feed dog shafts rocks back and forth.   The forked rod goes around the upper shaft eccentric so it much rock back and forth when the main shaft is moving.  Somehow this is converted into up and down movement of the lever connected to the feed dog shaft.  The amount it rocks up and down is controlled by the stitch length adjustment.  Putting it in reverse must make the feed dog shaft move in reverse. 

I imagine examining how that linkage works would show why you're not getting max throw which would be max stitch length. 

 

Edited April 3, 2023 by Quade