Tom from SWISCO responded:
March 4, 2024
Hello! I feel confident that we can help you replace this balance system, yes. However I'm going to need a couple more photos before I say anything for sure. To start, I'll need you to remove the sash from the widow and show me a clear picture of the pivot shoe. This is a square or rectangular block directly under the cover you show in your second photo. The springs connect to the shoe, and then the shoe connects to the sash, allowing it to tilt. Seeing it with an unobstructed view would be ideal. You will also need to remove the springs in order to both measure them and get the stamp printed on the metal band. You don't necessarily have to do this now, since the pivot shoe alone should be sufficient for me to narrow down the list of possibilities, but you will need to do it before you place an order. I may be able to narrow it down without that data, but you would still have to choose from a selection. |
Tom from SWISCO responded:
March 8, 2024
Thanks! I recognize this pivot shoe. This is compatible with two different sizes: either the 1/2" thick Series 160 or the 3/8" thick Series 165. You will need to remove the original before you place an order; there's no getting around that, unfortunately. it has to be done. Reason being that you need to both measure the spring to determine which of those two options is correct, and check the stamp to determine the appropriate weight rating. That said, I may be able to at least save you one of those steps. I'm thinking you have the skinnier Series 165 due to the shape of your plastic cover, which resembles our 15-204. Now, I don't know this for a fact, so you may still want to double check just to be safe, but I think odds are good. Either way, you still need to remove the old spring to check the stamp, so you may as well measure it while it's out. Please look these parts over and let me know if you needed anything else. |
Tom from SWISCO responded:
March 12, 2024
Thanks for clarifying, that information is very helpful! For a 3/8" spring with a #5 stamp, you want our S165-5. These are rated to carry 5 pounds each, so if you have three per side then you're dealing with a 30 pound sash. You may want to check that just to be 100% sure. That's a somewhat heavy load for this type of spring but not at all unheard of. I just like playing it safe. As for the cover, for a triple 3/8" spring assembly I'd suggest the 15-205. |
Tom from SWISCO responded:
April 1, 2024
Great! I'm glad that you got things working again. Regarding this pivot shoe, my recommendation would be the 15-199. I feel confident that this will work for you, but be sure to review our dimensions to verify. Note that the thickness is 9/16", which is not reflected in this diagram. Alternate view of 15-199
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