Soft lite Balance and spring

Question

These parts are for soft lite 28 1/2 x 26 3/4 from 2003.
I don't know what weight the spring is rated for. No numbers on the spring.

Jasmine · Accepted Answer

Thanks for posting! Your coil balance pivot shoe is the 15-177 Coil Balance Shoe. I am confident that this is the right replacement for your shoe but be sure to confirm the dimensions to confirm, with certainty, that this is the right fit.

Alternate image for 15-177

This shoe is compatible with the 1/2" Thick Series 152 Coil Balance. Since there are no stamps on your coil, you'll need to obtain the exact weight of your sash and divide that number but the total number of coils in the window. That number will give you the spring strength you need so that you can select it from the list of coils on the Series 152 webpage.

The coil is secured to the shoe using the 33-072 pan head Philips screw. You may also need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and the 15-145 Coil Support Barrel.