Bonneville window balance

Quick Learner from Cornwall
hello, I would like to retrofit your "24" SERIES 770 BALANCE" to my clients windows. Replacement parts are unavailable for this "Bonneville window" Your balance is exactly right in every way except for the pivot shoe. These windows use the balnce in an odd way. the balance is upside down and the string is secured to the jamb. The existing pivot shoe is located in the balance. We do not need the tilt wash feature to work and DO NOT NEED A PIVOT SHOE. however, i am at a loss for how the pivot bar in the window sash will attach to this balance? do you sell a pivot shoe that can be pinned into/ riveted into the metal balance frame that will accept the pivot bar? I would be purchasing 50 pair so your time would be well spent helping me. i am also a repeat customer! thank you, al
4 Replies
Tom
Tom from SWISCO
SWISCO
Expert

Thanks for contacting us, Al. Could you show us some pictures of your setup? That would be a huge help and would allow us to determine what you have. 

Quick Learner from Cornwall

sure here you go

4 user uploaded images
Tom
Tom from SWISCO
SWISCO
Expert

Thanks for getting back to us. I don't believe you can use our Series 770 to replace this no matter how you retrofit it. The way yours appears to function is just different. You will probably need the exact same balance as what you have now to get your windows working again, or at the very least you'll need something closer to what you have now than our Series 770. In my experience, you can't really mix and match different kinds of balances and balance hardware to serve the same function. 

We just need to figure out what you had. In your fourth picture, you show a damaged nylon piece. Do you have another version of this balance that isn't damaged? Seeing an unbroken version of that piece would be a big help.

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