Single rotator unit case
❏ check components
❏ mount two screws on the front panel with lock nut
❏ two spacers to the rear bottom side of the interface PCB and two screw the nut
❏ interface to put into the case and lightly tighten the two screws
❏ mount rear side of the bottom two screws
❏ four rubber feet stick
❏ upper part to ensure the two screws