Crawford Cdm9 950 Installation Manual Top =link= Direct

The CDM9 950 typically utilizes a compression bulb seal or magnetic seal (depending on the year of manufacture). During installation, check the "bite" of the seal. If the door is too tight against the frame, the seal compresses flat and loses its memory. If it's too loose, you get air leakage. Adjust the strike plate or hinges to achieve that perfect "thud" sound when closing—indicating a vacuum-tight seal.

: Common issues like a motor not responding or a door reversing on its way down can often be traced to improper balancing or incorrect terminal connections (e.g., at terminal X1 or X8). crawford cdm9 950 installation manual top

If the door reverses on its way down without an obstruction, check the door balance; an unbalanced door may trigger the torque guard. The CDM9 950 typically utilizes a compression bulb

| | Probable Cause | Solution | | :--- | :--- | :--- | | Door will not move | Power failure / Fuse blown | Check power supply and fuses. | | Door binds in guides | Guides not parallel | Re-align vertical guides. | | Door drifts down | Low spring If it's too loose, you get air leakage

The top-loading clamp consists of: