Miller CiNX 8 16 CB PLUS Operator's Manual page 7

Operating Instructions
2.4 Align the edge of the CAMERA PLATE with the BASE
PLATE, and then side load the CAMERA PLATE into the
BASE PLATE. Once the CAMERA PLATE is in position an
audible sound will be heard. At this point, the CAMERA
PLATE can slide forward / backward only.
2.5 Position the CAMERA PLATE such that the camera's C
of G is directly above the centre axis of the Fluid Head,
then push the SIDE LOAD LOCK LEVER into the locked
position. Check that the CAMERA PLATE is secure.
Side Load Lock Lever
7
C of G
Camera Plate
(Arri Type)
Fig. 6