Tilt sash downward to expose balance shoe. Using diagram 1, disengage rod from shoe. Do not disconnect rod from tensioning tool.
If sash is dropping, add tension by rotating rod clockwise. Do not exceed more than two full turns at a time, doing both sides equally. Reconnect rod, repeat process if needed.
If sash is pulling up, less tension is required. do both sides equally; rotate rod counter-clockwise one turn. Reconnect rod; repeat process if needed.
If rod is disconnected from shoe then follow diagram 2, for position of rod before connecting rod and balance. Apply tension to both sides equally, not exceeding four turns at a time.