barrel The mysterious mainspring barrel

[richiesgr]

Hi

I'm trying to figure out how to reassemble this mainspring the mouvement is Felsa 4017N . I join photo

As you can see the arbor seems to be sealed on the wheel I tried to free him but there are some dents that prevent this. It seems to be one piece. 

I've replaced replace the spring into the barrel but can't place the arbor in place ???

Thanks for your suggestions

 

[jerryvs]

 

9 minutes ago, richiesgr said:

Hi

I'm trying to figure out how to reassemble this mainspring the mouvement is Felsa 4017N . I join photo

As you can see the arbor seems to be sealed on the wheel I tried to free him but there are some dents that prevent this. It seems to be one piece. 

I've replaced replace the spring into the barrel but can't place the arbor in place ???

Thanks for your suggestions

its one piece 

put it in and tyrn anticlockwise/clockwise  to check it

The part no is  197/1 without 195 witch is the barrel arbor

 

Edited April 26, 2021 by jerryvs

[richiesgr]

14 minutes ago, jerryvs said:

 

its one piece 

put it in and tyrn anticlockwise/clockwise  to check it

 

I can't because the spring end  is not centered and if I place the wheel with the arbor I cannot access the spring anymore

 

[watchweasol]

Hi  Like Jerryvs said try that method it should work, If not try a pin vise/tool on the abour and twist it in that way.  I have enclosed the sheet for the felsa, note the arbour/cover are as one piece not removable.

Felsa 4017, 4017N.pdf

[richiesgr]

Thanks Jerryvs worked with tweezer  I move the spring and the arbor enter then counter clockwise it catch the pin.

Thanks the doc it'll me a lot as I forgot to take picture when I disassemble the movement 

Great tip  

Edited April 26, 2021 by richiesgr

[jerryvs]

2 minutes ago, richiesgr said:

Thanks Jerryvs worked with tweezer  I move the spring and the arbor enter then counter clockwise it catch the pin.

Great tip  

thanks