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HAirSpring collet 90 deg. Ahead of the Balance Bridge Port "Click" to Login or Register 
posted
Hello,
Today I inspected why a Roller Jewel was prohibiting the pallet fork from banking left.
Between the plates I could see the jewel had left ‘the fork’.

I reinserted the balance wheel being careful that the notch was in line with fork. After holding the balance bridge , resting in the bezel, over the correct positioning I could clearly see the collet needs a great amount of repositioning.

I have some tools but not sure of a safe way to grab or clamp the balance wheel to turn the collet.

I believe there is one for minor adjustments while the watch is assembled. Used for beat adjustment. My collet is not there yet!

How can I get the hairspring stud where it needs to be? ThankYou for All.
 
Posts: 136 | Location: New York in the USA | Registered: September 23, 2018
posted
Well My staking Strategy for tightening the Collet with a concave punch, followed by a Lil’ bit to much wood mallet. Is it beyond repair?

I wish I knew how to bring in all the photos with an album link with imgur. But here is the album showing the mangled balance wheel. But the Collet is tight..LOL

http://imgur.com/a/cZNrDdt
 
Posts: 136 | Location: New York in the USA | Registered: September 23, 2018
IHC Member 1555
posted
enough saidFrown
 
Posts: 2173 | Location: Gladstone in Australia | Registered: January 14, 2011
posted
Lesson learned. Looks like you are holding the balance in a truing caliper. Unless you have another or better plan gently begin to work the balance back to level and be careful with the balance pivots. Good luck.
Rob
 
Posts: 580 | Location: Kingsport, Tennessee in the USA | Registered: November 26, 2002
IHC Member 1845
posted
Well, I guess we all learn by making mistakes. It would be best to read the section on truing a balance wheel in your Chicago school of horology you down loaded. It is important to true the balance for timekeeping. Also, watch your pivots as stated above. Good luck, Mick.
 
Posts: 8 | Location: New York in the USA | Registered: May 02, 2013
IHC Member 2075
posted
It looks like 2 things or 3 , 1 treat a balance and hairspring like a live bomb , 2 close collet with spring off balance , 3 use tool to adjust collet , that will keep you busy but it can be straightened , try this tool made from old mainspring heated to take out temper , grind the tip to shape, epoxy in old ink pen tube

 
Posts: 1574 | Location: Maryland in the USA | Registered: June 04, 2015
IHC Member 2075
posted
use like this , just imagine it is on the balance , I hope this is what your asking , I get accused of telling you how a watch works when you only wanted the time

 
Posts: 1574 | Location: Maryland in the USA | Registered: June 04, 2015
posted
Yepper.
When I did the damage the collet had gone through the concave punch step, off the wheel.

I used a hole punch makng sure the pivot had space. Even the lightest tap THEN INSPECT, need more? Another light tap, INSPECT.

The closing distance is real small. I treated it like the wheel arms WOULD NOT DEFORM in the hole really too big in the Staking anvil. I need next time to think of the best way to support the staff very close to the force, and make the balance arms not be the recipient.

I must of hit it 3-4 times never looking, figuring it ‘would bottom out’. Sadely it was home probably on the first hit. Then after those 3-4 I gave it ONE LAST ONE.

So now I have a few 7j Grade 96 Elgin 18’s to decide who become the doners! I LUV it.

The tool You made from a main spring is a great mod with a part that would just get tossed.
 
Posts: 136 | Location: New York in the USA | Registered: September 23, 2018
IHC Life Member
posted
For every job there is a tool or many tools from different suppliers. After you've spent thousands of dollars on tools you'll think you have all you need, but you don't if you get addicted. Here is a Bergeon hairspring collet closing tool.
And if you need to rotate the collet on the balance staff, there are tools for that too.

 
Posts: 1078 | Location: Ticonderoga, New York USA | Registered: March 01, 2008
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