Specifications include, but are not limited to: Remove existing balance system from lower sash only. Install new class 6 balances with new reenforced stainless rod tip, coupling, and custom stainless adapter brackets. Balances to be
calibrated to exact sash weight and size. Install custom guide system to control lateral sash
movement. Install new anodized aluminum sash stops with rubber bumpers to prevent overretraction of new balances or limit travel as requested. Clean and lubricate jamb channels. Adjust,
as needed, to maximize operation. Minimum of 65 units to be done.