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How to reassemble Vostok balance complete?

szbalogh

By szbalogh
in Watch Repairs Help & Advice

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oldhippy Distinguished Member

oldhippy

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Why did you remove the hairspring from the balance cock? You should have just removed the end stones to clean the balance holes, also if you have a good watch cleaning machine and the holes don't look dirty you don't need to remove them. As far as I can remember it isn't made to be taken apart.

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wls1971 Distinguished Member

wls1971

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I have seen youtube videos on removal the only one I can find is this but I have seen another that had a better solution than this but cant find it now,

Reinserting would be a reversal of the process above, I think in this video the screw he uses is too long and risks damaging the hairspring the other video I once found was a american guy who had used a similar method but he had made a tool for the purpose that looked better than this solution but I cant find it. I think you could do something along these lines with a bit of care.

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szbalogh Super WRT Addict

szbalogh

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6 hours ago, wls1971 said:

I have seen youtube videos on removal the only one I can find is this but I have seen another that had a better solution than this but cant find it now.

This is sooo cool! Thank You very much! 

 

7 hours ago, oldhippy said:

Why did you remove the hairspring from the balance cock? You should have just removed the end stones to clean the balance holes, also if you have a good watch cleaning machine and the holes don't look dirty you don't need to remove them. As far as I can remember it isn't made to be taken apart.

Ah i wanted to clean the balanve pivots with that pin polisher rubber. 

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    • GuyMontag
      1972 Bulova President "E" Sea King 11ACACB movement

      By GuyMontag · Posted

      Yeah, I saw that in the tech sheet but I don't see how it can be adequately cleaned with the friction pinion still in place. I've accidentally pulled the arbor right out of the wheel once when I used a presto tool to try and remove it. Mark shows how he does it with the Platax tool. Those are a little too pricey for me so I got one of these from Aliexpress and I just push down on the arbor with the end of my brass tweezers. That usually gets it most of the way out and then I just grab the wheel with one hand the and the friction pinion with the other and gently rotate them until it pops off. Probably not the best way but it's seemed to work for me so far.    
    • Zedster
      Movement inserted from crytal side

      By Zedster · Posted

      Thanks, Jon Sounds like a plan. Obviously I'll have the face on so do you think gripping with the holder will create any problems, but I will check in the morning to see how feasible it is but I assume it only needs to be lightly held. As for holding the movement instead of the holder won't be possible in this scenario as one hand will be puling on the stem while the other pushes the spring down. That was my initial concern is how the hell can I do this with only one pair of hands. All the other times I've had to remove the stem hasn't been a problem, apart from the force required to release the stem from the setting lever, but now I need to fit the face and hands its sent me into panic mode. If it had the screw type release things would be a lot simpler but that's life 😀       
    • nevenbekriev
      Main spring

      By nevenbekriev · Posted

      Hi Jon, do You think that relation spring torque - amplitude is linear? I would rather guess that the amplitude should be proportional to the square of the torque. I had once idea to check it, but still haven't.
    • ManSkirtBrew
      1972 Bulova President "E" Sea King 11ACACB movement

      By ManSkirtBrew · Posted

      I did not. I thought about it, but I had cleaned it in my ultrasonic, and the tech sheet shows lubricating it in place already assembled, so I figured discretion was the better part of valor. Although since I have to depth the jewels anyway, maybe I pull the pinion off to rule it out 100% as part of the problem. Do you know if there's a safe way to do it? I don't want to use a puller because it would push down on the plane of the wheel, and that seems like a Bad Idea. I thought about using a roller table remover, but I don't think I have a hole stake pointy enough to push it down.
    • oldhippy
      Movement inserted from crytal side

      By oldhippy · Posted

      Before putting it back in the case I would fit the hands and use a pin vice on the stem to make sure the hands were in line. 
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