S380 balance not quite right
Quick Learner from Corona. CA
May 24, 2018 3:20 pm
I purchased the S380-27 balance but it is not quite a fit. Here are photos of the new balance compared to my original.
2 user uploaded images
4 Replies
Tom from SWISCO
May 30, 2018 12:32 pm
I don't see any difference between these parts that would affect the balance's function. You're showing the two top attachments, and for all intents and purposes they are identical. Could it be the difference lies in the bottom attachment?
Handy Person from Eastvale, CA
May 30, 2018 7:17 pm
The pictures I sent are the bottom (shoe) part of the CB. Although the are similar shape, there is a difference between the dimentions. The grey (old one) is slightly bigger than the white one, as a result the window has wiggle when opeing and closing.I know its hard to tell inn the pics, but the old ones petrude an extra 1/8".
Does that make sense?
Does that make sense?
Tom from SWISCO
Jun 4, 2018 11:23 am
The pictures in your first post are the top attachment, not the bottom shoe. These are meant to face up when you install the balance. If you have these on the bottom when you're installing the balance, then it's upside-down.
The size of the top attachment shouldn't account for that wiggle you describe. A 1/8" difference isn't really that much. This is because the bottom shoe is what keeps the balance firmly in place; all the top attachment does is catch the top sash guide. That's its only function, and it's why you can get away with a slight difference in size.
If your new balances wiggle, then the bottom shoe is likely the problem. I would compare the dimensions of the bottom shoes to confirm.