Jump to content

Bergeon stand won't rotate


ToffeeC

Recommended Posts

Hi everyone, this is my first post here (but have been a passive user for a while now). I am hoping that someone here can help me with quite an unusual problem. I recently purchased one of those Bergeon screwdriver sets that come with a rotating stand, generic picture below. Only one problem: the stand won't rotate at all, it's completely stuck! I can only assume the problem is rust that has accumulated on the joint bolt through the centre (I think it's a joint bolt?). I suppose I should first try to get the bolt out, clean it, and then reassemble the stand. But I cannot for the life of me get it out! Since the head of the bolt sits so flush on the stand, there's not enough surface area to get a good grip with locking pliers or the like. Any of you crafty lot got a suggestion? I'd hate to let this purchase go to waste since new sets are kinda of costly. Many thanks!

152.580_thumbnail.jpg

Link to comment
Share on other sites

I’m guessing it’s second hand from what he is saying? If there’s a flush bolt, there will probably be a nut at the other end. Try disassembling as much as you can, take a couple of pics as you go so you can remember how to reassemble. Advice what has been given innumerable times on this forum I expect, haha!

Link to comment
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.   Restore formatting

  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.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I've seen some really nice early 20th century pieces where all the jewels, including center wheel, were convex. Definitely to reduce friction. It can be quite hard to tell if a jewel has olive holes, especially on small sizes, but that again reduces friction- as well as accommodates small misalignments better. Why they aren't used more often? I imagine it was found that at a certain point in the train the actual advantage became negligible, and the added cost on high production movements is why it's not seen on those, just higher-end pieces.   I did an experiment on a little 5x7"' AS 1012 a few years back. These things run OK sometimes, but often are absolute dogs. And AS made gajillions of them. I had a NOS novelty watch in for a service, ran OK flat, massive drop in amplitude vertical. Made like 3 staffs for it trying different pivot sizes, no change. Tried high quality (not Seitz) convex/olive jewels, no change- the original were flat, but could have been olive hole. Same for the pallet fork, then escape wheel, no change. Probably had 20 hours in the watch, new staff and new hole jewels through the escape wheel, no difference in running. Just a dog of a movement. But if I were making a watch I would use them, just because.
    • When Nicklesilver mentioned the use of them on non coned pivots on older high end watches closer to the escapement.  That suggested to me  probably fourth wheels and possibly third wheels. The square shoulder rotatating on the much smaller surface area of a dome as opposed to a flat jewel surface. I'm curious as to why they are not used predominantly?
    • That's what I thought, but as I said, it makes sense. See if any of our pros will have something to add.
    • Kind of guessing here watchie with a bit of logic.
    • Canon with FE 4612a movement. Day and Date display Trying something new. Although is will take some time for me to start, I have a back injury that is very painful and so cannot concentrate. Set myself a target to begin mid May. Purchased a Canon wrist watch with  FE 4612a movement. Advertised with Rotor missing. Arrived, took photographs. Strap broken, removed and place in bin. Back removed. No rotor. Wind is stiff. Can wind up. Everything moves ok. Oscillates for under a minute, then stops. No rotor but all wheels appear the be there. Have sent for a donor movement FE4612. No day wheel.  I have taken basic photographs up to the point of service commencement. I will try a new format and use the record system on the microscope to show the full disassembly subsequent assembly. I will photograph the cleaning process.  Whilst I have no intention beginning a YouTube channel, I would like to begin to make a better record of my work standard. Work to do.  Make case to a better standard. Repair crystal. Replace strap.  Only a thought. I will try to insert an English day wheel. Not sure if it can be done, but hey, what can I lose. Got to stop now, back so sore.
×
×
  • Create New...