Crank detached - will open, cannot close.

Thanks for reaching out! The worm gear in the operator has become stripped so you'll need to replace the entire assembly. It reminds me of the 39-031 EntryGard Dual Arm Operator. To confirm that this is the correct replacement, carefully review and compare the dimensions below.

The compatible hardware and accessories can be found tagged below this thread.

Dimensions for 39-031