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Tom from SWISCO responded:
May 30, 2019
I'm afraid you won't be able to replace that pulley. Those aren't meant to be repaired in any way. You will need an all new balance. There's a good chance we carry yours, but I'll need more info. Specifically, I'll need a photo of the top to see how it installs in the window track. I'll also need to see the bottom shoe or clip, whatever it uses to attach to the sash. From there, I'm confident we can find a matching balance. |
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Tom from SWISCO responded:
May 31, 2019
Thank you! This looks like it might be our Series 751 channel balance. You might want to slide the shoe out of the track to confirm that it matches the one on our balance. I feel confident it will, but if they happen to differ then you can show us and we will do our best to find something different. The reason the pulley block cannot be replaced is because it is attached to the spring, as you noted. Once it breaks and the spring becomes disconnected, the tension is basically ruined. It would require special tools to reconnect the spring to the pulley, which is very dangerous considering how much pressure you're dealing with, and even if that were done the tension would never be the same. These are precise mechanisms that are specially calibrated at the factory and it's not just a simple matter of popping a new pulley in place. If you lose control of that spring while trying to move it in place then you could seriously hurt yourself. It's a lot easier, and less expensive, to simply replace the balance. If you still don't believe me, there's an additional explanation that is probably a little simpler: no balance manufacturer sells replacement pulleys separately. We wouldn't be able to supply them even if we thought it was a good idea. |
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Tom from SWISCO responded:
June 10, 2019
You're right, that is a square channel. That's a pretty peculiar setup but not entirely unheard of. We can still supply this, but it will have to be a custom order since we have to make it here in the shop. Since you need 2, I'll email you a custom order link and price quote now for 2. This will be a plain channel balance with a 15-014 shoe at the bottom of the cord and a rivet installed in the second hole from the top. It will also include a 15B stamp option for sashes weighing 7 through 10 pounds. We should have everything in stock. Let me know if you have any questions or if you need clarification. |
Couple of follow ups. First, the custom ones fit perfectly, and now the window works like it's supposed to! Great job! The only downside is that the original installation apparently used a channel that was about an inch shorter than it should have been; the locking tabs catch if the window goes down all the way. We never do that, so not an issue. Again, great service, great fit!
Second, I had originally ordered a pair of the Series 751s before we had the follow up custom order. How do I return?
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Tom from SWISCO responded:
July 1, 2019
Awesome! I'm very glad everything worked out. As for the Series 751 you purchased, see our return policy here. You can fill out a form from this page and the process will continue from there. Thank you once again for ordering with us. If you ever need anything else, feel free to ask. |
I also have a square (Not ribbed) channel balance for a loewen window
Size is 18R (19") and has a standard knife block attachment
I see you recommended a 15-014 with a knife block custom order to another person.
Can you provide a quote to produce qty - 2 for pricing and timeline.
Thanks
Keith
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Tom from SWISCO responded:
July 7, 2022
Sure, we can absolutely supply that for you. Can you just tell me what the precise weight of the sash is? Your old stamp, 18R, uses a different rating system compared to those stamps used by our Series 770. Knowing the sash weight would allow us to calculate a working alternative. Please make sure to be as precise as possible; we would need to know that down to the ounce. |
