1. Make sure the lift cord runs straight up into the cord lock mechanism with no obstruction or diversion. The lift cord should not be twisted.
2. When the blind is lowered, the roller pin should be loose to the touch.
3. The roller pin must be able to move freely up and down on the track.
4. Make sure that the lift cord is not caught between the lift cord mechanism and the headrail when the lift cord mechanism is snapped into the control route/punch in the headrail.
5. Small blinds (less than 20-1/8” net width) and blinds with same-side controls have a tape roll support near the cord lock mechanism. This closeness may create tension on the lift cord if the lift cord rubs against the tape roll support.
6. The curved tabs that secure the cord lock mechanism under the lip of the headrail can sometimes become bent after use. To create a more firm hold: remove the cord lock, bend the tabs upward, and replace the cord lock.
