EQ6 RA sticking after refurb

[chouet]

Hi all

I've been converting my NEQ6 to belt drive using the Rowan kit, and cleaning and regreasing for the first time. All the bearings appeared ok and still full of grease, so I only added grease to the carefully-cleaned worm gears. Having reassembled and adjusted the backlash, everything seemed fine until testing through a complete revolution of each axis. RA is sticking and stopping the motor at just one point on a full rotation of the mount, so I'm thinking the brass worm gear must be the culprit. I tried loosening off the backlash and also the steel worm, but it was still sticking.

Any ideas where I should look? 

I now have as secondary issue in that in trying to strip the RA axis down again to have a deeper look, one of the bearings is stuck fast and won't allow the RA shaft to come out 🙄.

Thanks

Nick