[Dennis]

To amplify what Brendan wrote, but as applied to my Vixen and Tak GEM mounts:

Under power, when “Go To” slewing via the hand set or computer, the clutches are locked so that the gear train is fully engaged.

However, if I want to manually point the OTA, I slacken off the clutches, move the OTA and then lock them again, so the tracking can continue. But, such a manual “Push To” voids my alignment, as the encoders cannot track such manual movements.

Cheers

Dennis