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Paul from SWISCO responded:
March 26, 2021
Hello, Customers with Marvin balances like yours have been successful in replacing their damaged tilt ribbed balances with our Series 751 channel balance. The Series 751 comes with the 15-014 locking terminal at the end of the cord. You would need the S751-27 with a 26TG strength option for a sash weighing between 24-31 lbs. To replace them, you will raise the bottom sash up about six inches, tilt the sash in and twist it to release the bottom sash pivot bars from the terminal clips. Again, lower the top sash, tilt it in, and twist the sash to remove it. Next, carefully remove the vinyl jambs from the window wood frame. They are held in by the pressure the sashes put on them. Lay the jamb liner down and slide the broken balance out of the vinyl track. Remove the "S" clip from the balance and install it on the new balance. Now, slide the new balance down the track, keeping the 15-014 terminal clip from catching inside the track. Then, ook the "S" clip on the track and pull down the 15-014 terminal clip about six inches from the balance, and lock it in place. After you replace all the broken balances, re-install the jamb liners and sashes. |
