Pedersen Model 308

[LomaeArts]

I recently acquired a Pedersen Model 308 Sole Stitcher.  I am yet to try stitching as it is cocered in years of dust and grime.  

I have read most of the threads here. As well as a manual I found. 

My meachanism looks great and works sell.

My reading shows:

• the bobin thread has to be waxed
• the top thread is not waxed
• you stitch Welt up

However what is not clear ( lack of detailed picture) is:

• How to adjust the bobbin tension, 
• How adjust the stitch length 
• Does the thread need to be waxed
• Do I need to grove the sole

Any assistance on these will be much appreciated.

Edited August 14, 2020 by LomaeArts
further research done

[Constabulary]

I once had a Junker & Ruh SD28 but it did not suit my needs. I was able to sew unwaxed 207 Poly + linen thread w/o problems (top + bottom).

Screw #32 is for adjusting the top thread tension

 

Screw 25 is for the stitch length

 

BTW - I can send you a German language manual with better pictures - just send me a PM

 

 

Edited August 14, 2020 by Constabulary

[RockyAussie]

You may already have this manual but in case here is this one - https://www.bootmaker.com/Junker_Ruh_Manual.pdf

[LomaeArts]

Constabulary - PM sent, those images are so good.

RockyAussie - yeah I have that manual.

Ok UPDATE.

I degreased and oiled the stitcher.  I threaded it with 150D waxed thread as that seems to the size that was on the machine.

Initial observations:

• it is super easy to use
• The waxed thread works well
• the  needles that came with it are #6 and lots of #7.  these are big. 
• the stitch length is about 4 to 6 mm
• the Tension needs attention

I like using more than my Landis model 12 due its simplicity.  The photos below show the unit on my dining room table

[LomaeArts]

I started to try stiching with the Pedersen Model 308.  

After repacking and adjusting the tension spring, i got some great stiches.

Then is stopped stiching - IE the top tread doesn't look the bobin.

I note the shuttle and bobin as very slopy, and wonder if it is the cause of the issue. 

changing the needle didn't help.

Edited August 25, 2020 by LomaeArts
spelling and needle

[Handstitched]

I know nothing about them, never seen one before,  but that is  just beeeautiful , lovely and old    

HS

[Constabulary]

Shuttle has to be sloppy - its is a so called elastic shuttle which is oscillating and the thread is pulled UNDER the shuttle while forming the stitch - it is just like a patcher shuttle just a lot larger. What kind of leather are you using? This machine is designed for stitching stiff / rigid shoe sole leather.

Edited August 26, 2020 by Constabulary

[jimi]

I,am Not Sure about these Junkers/Pederson type models, but normally the bobbin post has a tension spring also?? at least on other sole stitchers.

[LomaeArts]

Thanks for the replies. 

I have included a sample I was doing before it quit on me.

Constabulary:  that is a good explanation. I am stiching 5.5mm bridle leather that is a bit softer that sole leather.  I am starting to think i have a tension issue  as I fine the tread slides under the trnsion discs and jams.

jimi: The bobbin tension hasn't changed, but is pretty tight.

[LomaeArts]

On 8/26/2020 at 9:06 PM, Handstitched said:

I know nothing about them, never seen one before,  but that is  just beeeautiful , lovely and old    

HS

Yeah, it hwas a display item in the shop I bought.  I like a lot and if I can make it reliable will using on hand made leather sandles.