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Paul from SWISCO responded:
November 9, 2023
Thanks for reaching out to us. Hopefully we can help. Looking at these photos, you have vinyl jamb liners that utilize the Series 751 ribbed channel balance. You will need to remove these before you can properly identify them, and removal of the balance requires removal of the complete jamb liner. In your case, the jamb liners are held in with the pressure of the sash. There shouldn't be any screws or anything else holding it in place, though in your particular window I see they have some paint towards the out side of the jamb liner. That's probably keeping it in place. You will need to carefully run a utility knife down along the length to break the jamb liner free from the paint. After doing that, you can carefully pull out the jamb liner from the window frame by hand. Being that it's old and made of vinyl, there is a risk of it cracking as you do this. Make sure to be very gentle and try not to force it. We don't sell jamb liners so if it breaks, we won't be able to help you. I recommend spraying soapy water on the window sill to help lubricate its removal. It's a small trick but it works fairly well. Once the balance is removed, you can take a clear photo of the bottom shoe, stamp, and top end. Knowing the length of the metal channel will also be necessary. With that data, I am confident that we can find you a good match. |
