Paul from SWISCO responded:
August 3, 2016
Hey, Michael. Is this a wood window? If so, you may be able to use our Series 500 spiral balance along with a bracket like our 17-012. We've been using this balance for older wood windows for decades. Based on your window size and weight, I would recommend S500-30, which is 30" long, and a Blue Tip color option for sashes weighing 21 through 31 pounds. You will also need a 75-004 tool to install. Here is the process we recommend:
First, you want to drop them down either side of the sash from the top. Use a screw like our 33-017 to attach the balance tubes at the top, then have someone hold the sash up while you attach the 17-012 bracket on bottom with a screw like our 33-090, while the U-shape opening corrals the spiral. With your finger, bring the spiral up to the bracket and attach the 75-004 tool to its tip, then turn the spiral clock wise three times. Finally, hook it to the fork of the 17-012 bracket. Repeat this for the the other side. If the sash creeps down, give the spiral another turn or two. |
Paul from SWISCO responded:
August 5, 2016
Sure, Michael, I'm happy to help. With this new info in mind, I recommend an S500-35 red tip balance. A 5/8" router will certainly work for the balance pocket.
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Paul from SWISCO responded:
August 24, 2016
It was our pleasure. We appreciate your business, it means a lot to us. If you ever need anything else, we're always here to help.
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