Jump to content
Sign in to follow this  
shoemaker4

PFAFF 238, Missing Stitch Regulator Knob

Recommended Posts

 

Recently acquired a PFAFF 238 in "ok"-ish condition that needed work. I have restored it and essentially got it running with the only problem now being the missing Stitch Regulator Knob.

oeQSdTs.png

I ordered a generic plastic replica knob from eBay (that admittedly belongs to another family of PFAFF machines) and while it looks similar, the diameter of the bolt is a size or two smaller than what's on the 238. But even then, I could re-drill and tap the knob to fit onto the 238 if I could narrow down the proper thread size. Using metric dyes I've concluded the diameter is a M7, but am clueless on the threadsize. M7 x 0.75 and M7 x 1.0 don't seem to be able to screw past more than a few threads, so I am ruling those two out.

THucNnr.png

 

If anyone knows where I'd be able to locate an actual replacement for the knob used on the 138/238's (that screws onto the threaded bolt itself), or the Tap/thread size of the bolt itself, it would be greatly appreciated.

 

Thanks in advance.

Share this post


Link to post
Share on other sites

I have a complete lever w. knob and all parts for the 138. Not sure if is is 1:1 with the 238. Can post a picture later

Share this post


Link to post
Share on other sites

This is what I have. Knob is metal no chicom plastic. ;)

2nd pic is from a 138 parts list. Looks like I have 1 washer extra.

IMG_9335.JPG

Bild1.jpg

Edited by Constabulary

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...