Jump to content

Recommended Posts

Posted

Hey guys

has anyone done a mainspring change in one of these.  As i say above it is a felsa 4007.

The first 3 pics show the top of the barrel, See the hook in pic 2. That then goes over the piece sticking up in pic 4. But i am finding it virtualy impossible to hand wind the mainspring into the barrel pic 4 the sticky up thing gets in the way. The piece in pics 5 and 6 ( it acts sort of like a arbour) it has no hooks and no use except to center it when it goes into the watch. The arbour does not turn. The part of the barrel with the hook. ( see pic 1,2,3) turns via a wheel attached directly to the  intermediate wheel.

Any way back to my question. Has anyone come across this set up before and if yes howq do i go about getting the spring back into the barrel.

cheers

garey

 

IMG_20201111_204416.jpg

IMG_20201111_204427.jpg

IMG_20201111_204438.jpg

IMG_20201111_204444.jpg

IMG_20201111_204449.jpg

IMG_20201111_204453.jpg

Posted

unhelpful answer it kinda looks like a weird version of a waltham pocketwatch mainspring barrel. Except that barrel does not have the center part that you having a problem with. If you can't hand wind it in then you're going to have to find a mainspring winder.  or a new mainspring and just push it out of the ring.

Posted

Wind this mainspring inside a washer of the same or a bit smaller ID than that of the barrel, rinse!  ready to push in as you would new replacements MS's in.

Good luck.

 

  • Like 1
  • 2 years later...
Posted
On 11/11/2020 at 8:56 PM, gary17 said:

Hey guys

has anyone done a mainspring change in one of these.  As i say above it is a felsa 4007.

The first 3 pics show the top of the barrel, See the hook in pic 2. That then goes over the piece sticking up in pic 4. But i am finding it virtualy impossible to hand wind the mainspring into the barrel pic 4 the sticky up thing gets in the way. The piece in pics 5 and 6 ( it acts sort of like a arbour) it has no hooks and no use except to center it when it goes into the watch. The arbour does not turn. The part of the barrel with the hook. ( see pic 1,2,3) turns via a wheel attached directly to the  intermediate wheel.

Any way back to my question. Has anyone come across this set up before and if yes howq do i go about getting the spring back into the barrel.

cheers

garey

 

IMG_20201111_204416.jpg

IMG_20201111_204427.jpg

IMG_20201111_204438.jpg

IMG_20201111_204444.jpg

IMG_20201111_204449.jpg

IMG_20201111_204453.jpg

Hi, did you ever solve this? What did you do?



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Thanks to everyone for their guidance. Just a quick update. I was able to pull the pipe off with a standard set of handset leavers; the pipe was to small for the presto lever. I then installed the whole Hour Wheel Counter assembly including the bridge. Went together in no time (bad pun). 
    • Wow! Thanks for going all this way to help me! ok, so first I followed Praezis’ advice to correct that red arrow and bring that point closer. I was also wondering if the collet was centered and I tried opening it a little. Thanks Mikepilk for that Chicago lesson document, I’ll keep it at hand in the future! How does the centering seem? Then I used Nevenbekriev’s advice with drawing the bissextiles between the actual and ideal centers. Ended up changing the adjusting the final curve a couple times too…  Here is where I am now : - close when the regulator pins are in « A » position - further away in « R » position Now I know my end curve is not perfectly concentric and that explains the difference, but When I correct it it somewhat makes it worse   Thanks again for the help, love these puzzles somehow 😅
    • Thanks for all the advice! I ordered an ultrasonic machine and 1 liter of Elma red and I'll let you know how it goes.
    • Hello everyone, Hello everyone, Just reassembling this rather lovely movement… my question is this: Can anybody suggest a lubrication protocol for the Auto work on this? I also feel that reassembly of the reduction wheel components will be tricky.. any of you familiar? Also, what is the washer like component?I can’t remember noticing it on disassembly! thanks! tonyG
    • Wow! Thanks for going all this way to help me! ok, so first I followed Praezis’ advice to correct that red arrow and bring that point closer. I was also wondering if the collet was centered and I tried opening it a little. Thanks Mikepilk for that Chicago lesson document, I’ll keep it at hand in the future! How does the centering seem? Then I used Nevenbekriev’s advice with drawing the bissextiles between the actual and ideal centers. Ended up changing the adjusting the final curve a couple times too…  Here is where I am now : - close when the regulator pins are in « A » position - further away in « R » position Now I know my end curve is not perfectly concentric and that explains the difference, but When I correct it it somewhat makes it worse   Thanks again for the help, love these puzzles somehow 😅
×
×
  • Create New...