Tom from SWISCO responded:
November 14, 2019
Hi there! I definitely think we can help, yes. Looking at your balance, and based on your tube diameter, you have our Series 900. I am confident this will work for you. Also note that you may not need a balance at all. Spiral balances are convenient in that they can be wound up, like a toy, to regain a little tension. You can use a charging tool like our 75-006 to give your current balances a few turns, maybe 2-3, and see if you feel any tension build. If so, you can give these another couple years of life. Just something to consider. Just make sure not to over charge it or you can risk damaging the spring irreparably. You don't want to give it more than 5 turns. |
Paul from SWISCO responded:
November 18, 2019
We have known customers with MW Twinseal windows have used our 15-219 pivot shoe as a replacement. However, you will need to remove your pivot shoe out of the window to compare your measurements with ours to see if it is a match. |