Adler 205-6 take up lever

[Moti]

Hi 

I received an Adler 205-6 and the machine sews fine, but while sewing the stitch length regulator ( reverse handle ) keeps jumping, so I found that the take up arm hits the bottom of its groove, and I can't find how to fix it

Can someone help please 

 

[shoepatcher]

There is a bolt in the back that lets you tighten the lever up.  Should be about the same as on a 205-370,

Need pics of the back of your machine.

glenn

[Moti]

Thanks

 

[Moti]

and what is the is 
I marked 

[Wizcrafts]

1 hour ago, Moti said:

and what is the is 
I marked 

That looks like a stud used to hold a flex lamp.

[shoepatcher]

It is Wiz.  For the light.

glenn