Moon chain puller.
I used a #6 pull chain and #6 connector. You can purchase these online or any big box store. I have found even buying same size connectors there is a little change in size. One will slide in the next may have to click in. I added a pause for you to add the chain and connector into the moon. I watch mine for a couple layers to make sure fan doesn't blow it out. If it clicks in your good. You can also turn the part fan off for a couple layers.