Rob63

Hi,

no videos I'm afraid apart from one on adjusting the gear mesh on youtube.

The guides I have seen are good though. 

http://rocketsparrow.blogspot.co.uk/2017/01/how-i-made-better-celestron-avx.html (be sure to read the comments at the bottom about removing the RA tensioner there are 3 grub screws to loosen first  and it needs a very small allen key)

https://www.flickr.com/photos/10605262@N04/sets/72157646742806679/?ytcheck=1

This ones for the older but similar CG5  http://astronomyboy.com/cg5/

https://www.cloudynights.com/topic/578878-celestron-avx-rebuild/

This is the angle bearing I used on the RA although it does leave a slight gap as mentioned in some threads but it made a huge difference to RA stiction

http://www.ebay.co.uk/itm/SKF-32007XQ-Metric-Single-Row-Taper-Roller-Bearing-35x62x18mm/130940248658?hash=item1e7ca5a252:m:m3AAqpQNFsFJgnN6vqioQOw

It's easier than I thought I didn't even need to remove the RA from the mount part.

It certainly made things less sticky and balancing became a lot easier although performance wasn't much better.

Good luck,

Rob.