[TowerTalk] HDX-89 rotator replacement - w/o tilting the tower over?

[Brian Moran]

I have an US Tower HDX-89 tower, and I need to replace the Tailtwister 2 
currently nestled in the top section below the thrust bearing. Is it possible, 
and what's the procedure, to remove and reinstall a rotor w/o tilting over the 
tower? I will have removed the antennas and mast, but don't how far the tower 
must be extended to access the rotator plate.

Thanks,
Brian N9ADG