Jump to content

Recommended Posts

Posted

I believe that the cannon pinion for this movement is not friction fit as it seats on a tube that the center wheel traverses. There is a retaining plate that secures it to the main plate. Can anyone verify this for me please?

Posted
4 hours ago, nevenbekriev said:

The part that is friction fit and plays the role of cannon pinion in this movement is pointed with red arrow here:

Zodiac-70-watch-parts.thumb.jpg.2e3bf745f5e492cc39c37aea5ec18bec.jpg

How do I know how much friction is enough? 

Posted

I'm not sure if this is the proper way to test it but whenever I suspect a cannon pinion is loose, I'll use a pegwood to stop the minute hand and see if it can stop the balance wheel. If it stops, the friction is enough. If the wheel slows down but continues to turn, the cannon pinion is slipping.

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.

×
×
  • Create New...