My halo has stumped me!

[FredPo]

Alright guys, this weekend, my local field had some awful paint. So, as you might guess from the title, some of it broke in my halo b. I've cleaned most of it but I was wandering how to take out the drive cone to give it a thorough cleaning as I"m a neat freak. I took out the top screw but the cone wouldn't come out and I have never taken the halo apart so I"m asking for the fellow kingman fellas for help. Thanks guys.

Fred