Need replacement balance springs for Pennco Tilt window

Quick Learner from King of Prussia, PA

May 15, 2021 10:00 am

I replaced the pivot shoe on my Pennco Tilt window (your video for that was perfect by the way). When reassembling, the string holding the hook from the balance spring broke. I could not fix that. I have photos of the spring assembly and am hoping that you can identify and suggest a replacement. Thank-you

2 user uploaded images

6 Replies

Paul from SWISCO

May 18, 2021 2:49 pm

Hello,

We can make a custom Series 770-28 with a 62-105 hook attached to the cord but we'll need to confirm the spring weight to move forward. Please confirm the stamped code on the metal channel balance. Thank you!

Quick Learner from King of Prussia, PA

May 19, 2021 8:23 am

Hi Paul,

Thank-you for the reply, the code is "UNIQUE 27-C-30" then there is some difficult to read Code "27 / ???" that I hope you can decipher from the attached photo.

Thanks

1 user uploaded image

Paul from SWISCO

May 20, 2021 9:41 am

Your metal balance channel is 28", so you'll need the custom S770-28 with a 62-105 hook. The spring weight for your (27-C-30) stamp will be our (28C) for a sash weighing between 18-23 lbs. We just sent over an order link and price quote for you to review. Take a look and let us know if you need anything else. Thanks for posting!

Quick Learner from King of Prussia, PA

May 20, 2021 12:02 pm

Thank you for the help, I just placed the order. Appreciate your help

Quick Learner from King of Prussia, PA

Jun 4, 2021 5:17 pm

The replacement balance spring was a perfect fit. You guys were a great help. Thank you