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Adjusting window spiral balances

A quick learner from Linden NJ says:
I just got your "spiral charger" for my tilt windows. Here is what I have to work with: Each sash weighs 23lbs. There are TWO 5/8 spirals on each side for both the top and bottom (total 8 spirals for each window). TOP sashes are 4pcs 5/8" x 20" "red" BOTTOM sashes are 5/8" x 22" "blue" These are the originals which are about 25 years old. I don't know how they are "supposed" to feel when the widow is removed. If I take the spirals out of the locking foot the spirals just fall out to their full length. The bottom seems to be acceptable (I can lift relatively easy and it stays up) but the top sash keeps dropping down on 1 side. Reading your instructions on how to adjust them I am a little unclear for what looks like a simple operations. Do you "twist/tighten/rotate" the spiral clockwise for BOTH the top and bottom sash or does one go clockwise and the other CCW? They seem to tighten in either direction. I'm more than willing to replace them since they are 25 years old but at around $80 a window if I can't do it right it isn't worth the expense. Worse part is it is impossible to find someone to come out and do it for me here in northern New Jersey (Union county) even if I wanted to. :( Any suggestion on what I wrote above? Are the "colors" correct for the 23 lb top and bottom sashes? Thanks!
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Dave from SWISCO responded:
First, if the spiral is falling out of the tube, it sounds like the spring inside the tube is broken. Also, if the tube of your balance is plastic then it will have to be charged up by turning it counterclockwise. If the tube is metal, turn it clockwise to tighten it up. You should feel the tension when turning the spiral. The red tip bearing is standard strength. The blue is a little heavier spring.
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Donna from SWISCO responded:
Assuming you are referring to the 20" and 22" Series 600 balances

S600-20 with Red Tip option will carry a window sash weight range of 6 through 19 pounds
S600-20 with Blue Tip will carry a window sash weight range of 10 through 29 pounds

S600-22 with Red Tip option will carry a window sash weight range of 6 through 19 pounds
S600-22 with Blue Tip will carry a window sash weight range of 10 through 29 pounds

This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
A quick learner from Linden NJ says:
Thank you Donna (and Dave)! You say "based on 2 balances per sash." I have 4 balances per sash (8 per window), is it possible if I use the BLUE ones I could get away with 2 per sash? Each sash measures 47" wide x 23" long and as noted are 23lbs each. That would make it $easier$ on me to replace 4 similar windows
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Paul Sr. from SWISCO responded:
What is the thickness of original balance tubes, and are they metal or plastic?
A quick learner says:
5/8" - 98.6% sure they are metal. I wonder if they even made plastic ~30 years ago? These are the originals.
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Paul Sr. from SWISCO responded:
Okay, weigh your sashes and see if using two balances will carry the weight.
A quick learner from Linden NJ says:
Sashes weigh 24lbs each (the first message in this "group" has all the details).
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Paul Sr. from SWISCO responded:
Then for that weight, order Series 600-20 and Series 600-22 blue tip balances.
A quick learner from Linden NJ says:
Thank you ... I understand that I need to order Series 600-20 and Series 600-22 blue tip balances. but, once again, my question is: Currently there are 4 balances for each sash (2 per side, total 8 per window). Can I use just ONE on each side of each sash or do I still need 2 based on the fact the sashes weigh 24lbs each and measure 23" long x 47" wide. According to your specs 1 per side should be sufficient, I can't understand why they are using 2 per side.
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Paul Sr. from SWISCO responded:
I do not know why they originally had 2 per side for a 23 pound sash.
A quick learner says:
So I assume by your response I should be able to use just one on each side instead of two, correct?
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Paul Sr. from SWISCO responded:
Yes, if the weight is correct.
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