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  • Moderator
Posted

I have a Singer 29k71 that would benefit from a thumb nut presser foot spring adjuster. The part number is 113088 or NN88w, which is pictured here. I'm hoping somebody in the USA has one they don't need, or NOS they can sell.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

Posted (edited)

This pretty Singer NN88W thumb nut is $12 shipped.

 IMG_8278.jpgIMG_8279.jpg

IMG_8280.jpg

I have a few disembodied Singer 29K heads floating about in my drawers.

IMG_8281.jpg

The same thumb nut also appears on a another part, but I'm not sure which machine this part goes with. 

IMG_8283.jpg

 

Edited by Uwe

Uwe (pronounced "OOH-vuh" )

Links: Videos 

  • Moderator
Posted

Sounds good Uwe. How do you want to proceed?

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

Posted
1 hour ago, Uwe said:

 

 

The same thumb nut also appears on a another part, but I'm not sure which machine this part goes with.

IMG_8283.jpg

 

 

Uwe, your part looks similar to the one on my Singer 45K53.  The dogleg part itself is 91436, Feed Shaft Lever, and the thumb nut is NN52.  I believe other Singer 45K's use a similar looking dogleg part.  Is your part above Simanco?  Do you know what the thread size/pitch is on the thumb nut on yours?

IMG_4281.JPG.20846cbdce50ff57da5712035b6eaaf9.JPG

 

Posted

Thanks for solving my little part mystery, @Evo160K! My part is also a SIMANCO 91436.

IMG_8284.jpg

The thumb nut threads nicely onto a 15/64"-28 bolt from my Juki parts bin. 

IMG_8285.jpg

Uwe (pronounced "OOH-vuh" )

Links: Videos 

  • Moderator
Posted

I'm hoping that this thumb nut, which I am getting from Uwe (thank you), will help to fully hold down leather that is somehow not flat against the throat plate. If this doesn't stop the skipped stitches, I mad need to get a custom made presser foot with very narrow clearance between the toes.

The needle, although titanium coated, is fighting against Venture Leather Tape in many instances. Only my patchers have problems sewing through this tape. All of my walkers have no problems with skipped stitches through tape.

I have even pondered replacing the paddle shaped check spring with a heavier duty spring. The loops dissolve much too soon if the surface isn't flat, or there is tape between the layers.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

  • Members
Posted

Uwe, really 15/64-28?  1/4-28 is common and 0.015" larger than 15/64. I'm not doubting you, it would just be fascinating and disturbing if Juki made a part that was so close to a standard SAE dimension and nowhere near metric.

 

Posted

GPaudler,

If Juki copied Singer's parts, then Juki did do 15/64-28, because 15/64-28 was used regularly on Singer machines.  I suspect Singer wanted to keep other manufacturers parts off of their machines for a number of obvious reasons.

The thumb nut in Uwe's picture is definitely 15/64-28.  I know because I had to make one for the K53 in the picture above and had to purchase that special 15/64-28 Singer tap to do it.

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