I purchased two 29" Series 390 Channel Balance
Product Code: S390-29 in 2009. They have been in the window since then. I recently looked at the balance because we have had a harder time closing the window. Turns out the track part has begun buckling. I know they have been in there for many years but should I go with the stamp option of 2840 instead of what was in there of 2830? I think I need a stronger metal.
upgrade to heavier stamp option?
Quick Learner from Melbourne, Florida
Nov 14, 2015 2:32 pm
4 Replies
Paul from SWISCO
Nov 16, 2015 11:22 am
The 2830 spring weight is for a sashes weighing 16 through 23 pounds, while the 2840 is for sashes weighing 23 through 28 pounds. If you move up to the stronger spring, you might have a harder time closing the sash or, when you unlock the sash, it will spring up. I highly recommend weighing your sash to determine the proper spring weight.
Quick Learner from Melbourne, Florida
Nov 16, 2015 2:49 pm
The metal part of the channel seems to be much thinner than the original ones that are on the other windows. Since the stamp option would not be a good idea to increase, do you have any ideas on the buckling of the metal?
Paul from SWISCO
Nov 17, 2015 10:08 am
Moving up to the next option may be what you need to do, but I'm not sure. You should weigh your sash on a scale to be sure. At the very least, it will narrow down the list of possible solutions.
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