Jump to content

mainspring wont catch

gary17

By gary17
in Watch Repairs Help & Advice

 Share

Recommended Posts

gary17 Super WRT Addict

gary17

Posted
Posted

Hey guys

I have been trying to get this mainspring to attach to the arbour. First attempt went bad i tried to bend it gradually to fit but the bridle broke. Is there away of doing this .

Do i try again to bend the spring to fit arbour in the barrel? out the barrel?

This is the way they both came i mean i have not touched this one in the photo at all. All other springs on most other watches seem to be a bit nearedto the arbour if not touching  than this one.

Any ideas.

cheers

gary

IMG_20201011_211151.jpg

IMG_20201011_211157.jpg

IMG_20201011_211158.jpg

Link to comment
Share on other sites
JohnR725 Distinguished Member

JohnR725

Posted
Posted

if it's a blued steel spring the center part is usually soft you can usually close it when it's in the barrel. It's a modern white spring it shouldn't look like that at all if it does its defective.

then modern white spring is as you found out attempting to close the center or anything usually results in breakage. If you put something in the center when it's out of the barrel you can gently squeeze it and slowly close it if you're careful. But anything resembling bending of light spring is usually ends in disaster

  • Like 1
  • Thanks 1
Link to comment
Share on other sites
mikepilk Distinguished Member

mikepilk

Posted
Posted
50 minutes ago, Nucejoe said:

https://watchmaking.weebly.com/uploads/1/1/7/9/1179986/1001133_orig.jpg

The link could not be embedded, you can copy/ paste into your browser.

Bending and wrapping pliers. 

 

 

Having broken several springs trying to close the central coil, I've been looking for some of these pliers, small enough to use on wristwatch springs. 

These are the smallest on Cousins, but are they small enough ?

896468012_Screenshot2020-10-12103707.png.bf42ba927566be97828c086ff9ca9e01.png

Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • Hawaiikook808
      Seitz Tool - Help determine if Seitz or not

      By Hawaiikook808 · Posted

      Thanks, ManSkirtBrew.  I started looking for a setup like yours and ran across this.  It was about half the price of the JKA Feintaster (depending on what auction you were in), and it's a Bergeon.  I bought it because I thought the price was fair (eBay - Buy it now), and I'm a sucker for vintage tools. It also has a table, so it should be easy to use for measuring jewels. I wonder if the the contact points can be changed out. Bergeon seems to manufacture new tables and accessories for the contemporary dial version. What do you guys think of it? I'm sorry this post seems to have taken a detour. I'm new here so let me know if I should start a new topic.
    • nevenbekriev
      Winding pinion making

      By nevenbekriev · Posted

      This is a flying cutter, usual one. The cutter itself is shown in the pictures in the first message, it is made of broken tungsten carbide drill bit. I asure that all the angles of the cutter are as they should be. I have video - little older one - that I made when onse making the same kind of winding pinion for a Poljot 2200, which is even smaller than this one. It is not easy to see in the video, but the tool rest moves about 1mm towards the object in Y direction and then returns back untill cutter is rotating. Then the spindle is rotated one tooth ahead and everything repeated untill all teeth are cut.
    • Trav2004
      Help Identifying movement

      By Trav2004 · Posted

      After a bit further research could it possibly be an AS 970?
    • Bonefixer
      FHF70 balance jewels settings

      By Bonefixer · Posted

      Latest project was a non-running ebay purchase with an FHF70 movement. I stripped and cleaned it, reassembled it, and got it running. So far so good, nothing damaged AFAIK.  I was oiling the top jewel on the balance (the one in the cock) which was a slightly unusual shock setting. I removed the spring (3 leaves) which was part of a chaton holding the cap jewel. This left the hole jewel behind which I retrieved with rodico and then lost it. I was taking it off the rodico, very gently as I thought, with tweezers, and then it just disappeared.  Fast forward a week, I got a donor movement, non-running, with the plan to just take the shock jewel that I’d lost. It was the same movement but had standard incabloc settings, and was steel rather than copper/brass.  I changed the cock and balance complete and it ran, not very well. I switched the lower jewel setting, cleaned and oiled both jewels and the replacement balance. Without the pallet fork the balance swings very nicely with a puff of air. With the fork in place, balance out, it flicks side to side nicely with power in the mainspring.  Put them together and it doesn’t run. The impulse jewel sits in the fork and it stops.      Any suggestions how I proceed? In case you didn’t follow that I have 2 FHF70 movements, nothing broken as far as I can tell, but mixing up the balance wheels and jewel settings results in a non runner. 
    • Neverenoughwatches
      Part swapper to part maker

      By Neverenoughwatches · Posted

      Oh and this almost perfect third wheel pivot and slightly set mainspring  Ah ok yes i see what you mean, good idea. I'll try that if i fluff this one up. The image isn't great quality but i like the idea though.
×
×
  • Create New...