How to install a Model 15-017 Spiral Balance Shoe?

Hopefully I can help! First, have a friend raise and hold the sash up up. While they're holding it, thread the balance spiral through the 15-017 shoe and lock it onto the sash. Now raise the spiral with your finger and, when you get to the shoe, hook the 75-005 charging tool into the hole at the tip of the spiral. Turn the spiral clockwise three times. You should feel tension building and hook the spiral to the shoe. Do the same on the other side and try the sash. If the sash doesn't hold, raise and hold the sash up and give the spiral another turn. You don't want to turn it very much more than that, though.