Need instruction on re-calibrating stitch length dial

[regius]

I mentioned this need in another post about LU-563. But I'll post here properly as a question/ask for help. 

I use a DNU-1541 walking foot machine by Juki. My stitch length dial goes from 3 to 9 then 0. On the spec, this machine can stitch length max 9mm. However, the longer mm length is irrelevant to me, because for my work (leather jackets, vintage reproduction), the stitch length is often very short. Some may argue it's wrong for leather jacket but I don't want to enter into a debate because in reality, many professional makers as well as my vast collection of vintage jackets all showed a range of length and many are quite short. Anyhow, for my projects, I'm always at the 3 to 4 mark, never beyond 4. 
When the machine first came in, even at below 3 the length was too long (about 3/16" long and under), but my target length is down to 1/8". One eighth of an inch. Other times I can do 1/4".

I want the number 3 to be shorter than 1/8" so that I don't always have to stay at 3. 

I wonder if anyone know how to re-configure the meaning of these numbers, and move everything down/shorter a bit. 

[Northmount]

@regius I've moved your post to Leather Sewing Machines.  This is the place to post as this is where the sewing machine fellows hang out.  Posting in help wanted requires every post to be approved by a moderator.  Help wanted is sort of like the want ads in the news paper, people looking for work, or looking to have something done for them.

When you have a specific item or request, you should start a new post, not tag onto someone else thread that is not the same as your topic.

Good luck in your search, I'm sure someone will be along soon to help.  Photos are always a good thing to post when looking for specifics.  Do you have a manual for this machine?  That is another good place to look.

[regius]

thank you @northmount

 

[CowboyBob]

18 hours ago, regius said:

I mentioned this need in another post about LU-563. But I'll post here properly as a question/ask for help. 

I use a DNU-1541 walking foot machine by Juki. My stitch length dial goes from 3 to 9 then 0. On the spec, this machine can stitch length max 9mm. However, the longer mm length is irrelevant to me, because for my work (leather jackets, vintage reproduction), the stitch length is often very short. Some may argue it's wrong for leather jacket but I don't want to enter into a debate because in reality, many professional makers as well as my vast collection of vintage jackets all showed a range of length and many are quite short. Anyhow, for my projects, I'm always at the 3 to 4 mark, never beyond 4. 
When the machine first came in, even at below 3 the length was too long (about 3/16" long and under), but my target length is down to 1/8". One eighth of an inch. Other times I can do 1/4".

I want the number 3 to be shorter than 1/8" so that I don't always have to stay at 3. 

I wonder if anyone know how to re-configure the meaning of these numbers, and move everything down/shorter a bit. 

Loosen the screw that holds the knob on & careful the spring doesn't fall out & you can turn the knob from 3 to #4,tighten the screw & see how looks.