Open the dome about 1/2 hour before flats.
The dome should have been left at 270° , in the west. Rotate it to the home position, in
the east at 90°. Make sure all contacts are fully engaged.
Rotation can be done within ACE (with the light blue buttons on the ACE toolbar) or from
the panel on the east wall in the dome.
Remember: If using ACE, you must hit the Stop Dome button when the hydraulic shutter has opened to insure that the hydraulic motor shuts off.