I picked up an old CG11 on CN with a bunch of upgrades. After relubing the needle bearings and cleaning up some of the old gummy grease, it's working OK in that everything functions, but its performance isn't where it should be.
Specifically, the Dec axis doesn't respond quickly during calibration when moving South (it's fine moving North, and seems fine when guiding), and the RA error is in the 1.5-2.5" vicinity, which is too high for this mount, and too high relative to the Dec error at 0.4-0.6".
I'm still waiting on the new high precision worms, having ordered them in November, but since they don't look to be shipping anytime soon, I figure I might as well clean and adjust the mount with the old stainless steel worms and see if I can improve the performance.
Are there any videos of backlash adjustment for Losmandy mounts with the in-line motors (not the new tucked in motors)? I've seen the new videos on the Losmandy channel, but they have a very different design for coupling the gearbox to the worm gear. I don't have a good sense of how freely the worm is supposed to rotate, and how well aligned the Oldham coupler between the worm and the gearbox needs to be. I'm hoping there's a video out there to give me a sense of this.