I think it's better to post this in a new thread. I noticed some significant friction on my RA axis that I could resolve by opening the nut that fixates the cylindrical thrust roller bearing of the RA axis on my LX85 mount. Now the axes smoothly with open clutch.
However, what I noticed (don't know if it's been observable before) is that with intermediate slew speeds (16xGuide to 1.5deg/sec) the mount show a significant jerk when accelerating. No matter if it's directional change or accelerating in the same direction as it moved before. On acceleration the scope vibrates a very short time and then slews with continuous speed. With lower speeds and max speed (4deg/sec) it doesn't happen.
I think it's the servo that causes a jerk when accelerating and the now missing friction isn't damping the oscillation caused by it.
Does somebody know if I can control this somehow? I simply don't know if this jerk leads to premature wear of the gear.