Welcome to the Quilting Board!

Already a member? Login above
loginabove
OR
To post questions, help other quilters and reduce advertising (like the one on your left), join our quilting community. It's free!

Results 1 to 6 of 6

Thread: Disassembling Motor problem with clip/u-nut

  1. #1
    Member
    Join Date
    Apr 2016
    Posts
    6

    Disassembling Motor problem with clip/u-nut

    I am in the process of rewiring the original motor for my Pfaff 130-6. But, I've run into a problem. on one side of the motor there is a bolt that goes into a clip nut/u-nut and I can't get the threads to catch and there can't remove the bolt to completely disassemble the motor.

    Click image for larger version. 

Name:	IMG_1591.jpg 
Views:	118 
Size:	533.8 KB 
ID:	619493


    Any suggestions?

    Thanks,
    Tammy

  2. #2
    Senior Member
    Join Date
    Jan 2011
    Posts
    770
    Maybe you can try chasing the threads with a die nut....

    Here is a youtube video that shows what I mean.

    https://www.youtube.com/watch?v=qPk6HBvnhK0

    this link shows pictures of die nuts...they come in different sizes.

    https://duckduckgo.com/?q=die+nut&t=...ages&ia=images

  3. #3
    Member
    Join Date
    Apr 2016
    Posts
    6
    I think, it is likely that I can't get the double ended threaded rod out because of thread damage. But, if I can't the rod out, there is not way to chase the threads. I do have a set of die nuts.

    So my problem at the moment is that I haven't figured out how to remove the rod. After I get the rod out then I can see if the threads can be repaired or come up with a replacement.

    I've tried pulling up and pushing up on the rod as I turn but I can't get the threads to catch. I guess I might be able to cut the u-nut off but the space is so tight I'm not sure I can do that.

    Any thoughts on how I could remove the threaded rod would be greatly appreciated.

    Tammy

  4. #4
    Member
    Join Date
    Sep 2018
    Location
    River City, Orygun
    Posts
    29
    It's gonna take more force than just "pulling up" on the bolt. If you can get a pin punch through from the other side (nut end) give it a good whack to distort the clip/nut. If not wedge under the square of the bolt to engage the nut. Those nuts (also called tinnerman nuts) are stamped steel and distort when the fastener is tightened. They don't require "good" threads on the bolt for engagement, but the edges of the nut do need to engage a thread- which is why they must be forced into shape.

  5. #5
    Senior Member
    Join Date
    Jan 2011
    Posts
    770
    Can you take a close up picture looking down (ish) where the shaft comes out of the motor? Hubby wants to see that angle. He thinks the "bolt" is actually the motor shaft which won't come out/off.

  6. #6
    Senior Member
    Join Date
    Jan 2011
    Posts
    770
    If you do FaceBook, maybe this Pfaff 130 group can help you.
    Look for: PFAFF 130 Owners Resource Group

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

SEO by vBSEO ©2011, Crawlability, Inc.