Adler 67 - stitch length adjustment

[Birdpath]

Hi Folks: 

I just bought a 1972 Adler model 67 sewing machine in very good condition. It has been sitting for the last 15-20 years. The thumb screw and wing nut for stitch length adjustment are really tight and barely move. I can get a little movement with initial lubrication, but am reluctant to force anything before I know which way to go. My understanding is when the wing nut is up, I should be able to turn the thumb screw in and out to change stitch length, then turn the wing nut to the right to lock it in place. Am I correct? Any suggestions for proceeding to loosen this setting? This is the first walking foot machine I have owned so this is new to me. Thanks for any insights and suggestions. Best, Daniel 

[Tigweldor]

Yup - you are right on the procedure.

Lever counter clockwise is to loosen - clockwise is to tighten.

Here is a manual for free : https://www.manualslib.com/manual/461564/Adler-67.html?page=5#manual ( go to page 5 - best thing just to print out page 4 , 5 and 12 and put them each in a plastic paper sleeve)

 

Open the lid on the top and keep oiling - keep oiling - keep oiling.

If it is really stuck - start with some kerosine or I like to use carb cleaner from a spray can with a little plastic tube on the nozzle (usually comes with the spray can)

Here is a vid if you want to adjust stitch length to be absolutely equal in forward and reverse - although he is showing it on a 167 - on the 67 it is the same :

 

If you scroll through the Youtube vids list under "Adler67" Uwe (Grosse) has some good ones on hook timing and others.

Edited April 10 by Tigweldor

[Birdpath]

Many thanks Tigweldor! Got it. In case someone else comes across this thread, the key was loosening the locking collar on the inside of the locking wingnut. With patience and continued lubrication/cleaning, this allowed me to back the thumbscrew out completely. Hardly any visible material in threads, however a little cleaning after removal with isopropyl alcohol made a world of difference, even before oiling.

Thanks for the references above as well - much appreciated. Having done a pretty thorough cleaning at this point, I am really pleased with the machine and the excellent condition it is in. I am really looking forward to using it. Thanks again, Daniel