My 28in spiral balance is too short

A contractor from louisianna says:
youre measurement direction mean what ?
the pins are in the wrong place
add a inch to get correct units ?

what do i do with the 8 pcs i have too short ?
A customer submitted photo of spiral balances.
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Paul from SWISCO responded:
When determining the best replacement for your current spiral balances, you have to measure the metal tube portion of your balance only, not the tube and the protruding spiral. For example, a normal S600-28 spiral balance has a 28" tube, but a 29" spiral.

Does your balance touch the window sill, or does it come up short? If it did come up short, can you tell us how by how much? Keep in mind, there are two different spiral tube diameters available. The Series 600 has a 5/8" diameter, and the Series 900 has a 3/8" diameter. Did you order the correct one?
A contractor from LA says:
my tubes are 28 -
just like the new ones ......

the rod on mine are longer - close the window and they come apart

can you tell by looking who is the OEM for hte ones i have ?
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Paul from SWISCO responded:
Unfortunately, I can't tell who the manufacturer is by looking at the balance. Did you install the balance you got from us? If so, see if the spiral touches the sill, or if it doesn't, see how short it is from the sill and let me know. I can help you from there.
A contractor from LA says:
it touched after i closed the window -
how do you get the sprial back wound up in the tube ?

pulled all8 new units out -
about 1 inch short of bottom
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Paul from SWISCO responded:
Okay lets try this: first, remove sash. Then install the top of the balance with a screw and let the spiral come out. Does it hit the sill? Now wind up the spiral all they way to the color bearing, pull it down a few inches and turn it clockwise three turns, and then lock it in the pivot shoe. Please refer to our video on how to install a spiral balance for instructions on how to do this.

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