Tom from SWISCO responded:
May 16, 2019
Thanks for posting! Based on your photos, I believe you can use our Series 770 channel balance. This has the same style clip at the end of your cord, so I think it'll be a good option. As for the shoe, I think our 15-219 looks like a good match, too. Let me know if you agree. |
Casey from SWISCO responded:
May 17, 2019
Glad to hear Tom was able to offer some help! We have videos that cover how to remove the shoes. Maybe one of these can help you. And as always, let us know if you have any more questions. |
Tom from SWISCO responded:
May 20, 2019
Hey, Brandon! So, balance stamps are kind of weird. They tend to vary between manufacturers, who all interpret them differently. What I mean by that is, don't take what I'm about to tell you as the rule for all balances in your house. With that out of the way, the first two digits being one less than your length is normal. The reason is kind of dumb, but the logic is that those first two digits represent the height of the visible glass for the sash the balance supports. This is probably important from a technical standpoint and I'm sure they had good reasons for going that way, but I have no idea what those reasons are and it's not important anyway. That's for the engineers to know; I'm just a handy man! Here's the confusing part: the manufacturer who makes our Series 770 balances does it differently. The first two digits simply represent the length of the channel, easy peasy. This method is relatively uncommon, even if it makes more sense. That's just how this industry gets sometimes. The "C" does represent the calibration of the spring, yes. This represents a range of sash weights that your balance pair can support. There's a very good chance that you simply have a 28C stamp, which carries 18 through 23 pounds. You can always weigh your sash on a scale to confirm if you wanted to be 110% certain. Hopefully that clears things up. I know its confusing! After you see these balances every day for years and years like I do, you start to get a sixth sense for what's what. |