Jump to content

How do I oil this balance pivot?


Tmuir

Recommended Posts

This is from my 1920s /30s car clock.

I just realised I'm unsure how to oil the top pivot on the balance.

The bottom pivot was easy, the cap jewel was just held in place by one screw so I could remove the cap and put a drop of oil carefully on the centre of the jewel before putting back the cap jewel.

But I can't see how you remove the top cap stone to oil the top jewel. I really hope I don't need to remove the balance from the balance bridge and oil from underneath as I don't yet feel confident enough to do that yet.

Looking forward to your advice.

 

balance.jpg

Link to comment
Share on other sites

 

This is from my 1920s /30s car clock.But I can't see how you remove the top cap stone to oil the top jewel. I really hope I don't need to remove the balance from the balance bridge and oil from underneath as I don't yet feel confident enough to do that yet.

 

balance.jpg

You will have to remove the balance to oil the pivot.  Maybe you should leave it just now if you are not confident.

Link to comment
Share on other sites

Yes, two ways to oil this type. Turn around the balance cock and add oil to the hole jewel while holding the balance carefully no to touch the spring with the oiler. 

Or remove balance with hairspring from the cock. Remove those two screws holding the cap jewel from the cock. Add oil to the cap jewel and reassemble.

  • Like 2
Link to comment
Share on other sites

 

Or remove balance with hairspring from the cock. Remove those two screws holding the cap jewel from the cock. Add oil to the cap jewel and reassemble.

This also alows for the proper cleaning and inspection of the pivot, hole jewel and cap jewel

  • Like 1
Link to comment
Share on other sites

There is no need to take anything apart. Just unscrew the complete balance and turn it over, with a pair of tweezers lift the balance slightly up and away from centre then with your other hand with an oiler drop oil into the centre of the jewel, gently put the balance complete back and screw it back into place. Just make sure no oil gets onto any part of the hairspring.     

Link to comment
Share on other sites

 

There is no need to take anything apart. Just unscrew the complete balance and turn it over, with a pair of tweezers lift the balance slightly up and away from centre then with your other hand with an oiler drop oil into the centre of the jewel, gently put the balance complete back and screw it back into place. Just make sure no oil gets onto any part of the hairspring.     

 

Thanks

I'll give that a go. It is an oversized movement, about 58mm in diameter, so atleast its a large one to try on.

My night classes don't start again until the 26th and I really want to bring in this clock finished with a re-silvered dial which will also be something new for me to try.

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

    • All I do is use a fine marker (sharpie) to put the service date on the back cover, this way it can be removed with some IPA and does no permanent damage to the watch. I'm in two minds about the whole service marking thing, sometimes it's good/bad to see the markings on the watch case back as you know it's been worked on and vice versa. However, if I took my car in for a service and the mechanic scratched some code into the housing of my engine I wouldn't be too impressed. Hence, I think my sharpie solution is a reasonable compromise.
    • hmmmm.... maybe there is a way to skin that cat 🙀 let me think on it... unless anyone else has any ideas? I left the opening in the side of the base and ring quite large to maybe allow you to grip the crown, but appreciate this may not always be possible, especially for small movements where the crown will not extend past the outer wall of the holder. I noticed this also, but after using the holder for a while I noticed that the ring/holder began to wear into shape (rough edges/bumps worn off) and the size became closer to the desired movement OD. Maybe with some trial and error we could add 0.5 mm (??) to the movement OD to allow for this initial bedding-in?
    • Hi nickelsilver, thanks for the great explanation and the links! I'll take a good look in the article.  Especially this is great news to hear! Looking through forums and youtube videos I was informed to 'fist find a case and then fit a movement for it'. But seems that's not the case for pocket watches at least?  I guess I should be looking to find some 'male square bench keys' for now. I was thinking of winding the mainspring using a screwdriver directly, but I found a thread that you've replied on, saying that it could damage the spring. 
    • Murks, The rate and amplitude look OK, and the amplitude should improve once the oils you have used get a chance to move bed-in, also I notice that you are using default 52 degrees for the lift angle, if you get the real lift angle (assuming it's not actually 52) this will change your amplitude - maybe higher, maybe lower. I notice that the beat error is a little high, but not crazy high. At the risk of upsetting the purists, if the balance has an adjustment arm I would go ahead and try and get this <0.3 ms, but if it does not have an adjustable arm then I would probably leave well alone. Just my opinion.
    • Hi everyone on my timegrapher it showing this do a make anymore adjustment someone let me know ?    
×
×
  • Create New...