Replacing the string arrangement on 18" 385 channel

Question

I was wondering if I could get parts to replace the string arrangement on sash window. The window weighs 7.5 lbs, the metal part measures 18". Also need what I call the clips (at least one I have one already) to install the channel in place. Also the rivet to reattach the string and pullies.Your video that explains how to install the chanel shows the clip and the rivet. I believe my chanel looks like your model 18" 385. As you can see the string got broken as I was trying to re-installit and did not know how. So, I watched your videos.

Tom · Accepted Answer

Unfortunately, you won't be able to replace the pulley system. These are not meant to be repaired and the manufacturer highly recommends that you never attempt to do so. We do, too, for that matter. These are under a lot of tension and have to be precisely calibrated. It's a lot simpler and more cost effective to simply replace the balance.