Stewart Filmscreen Corp 4-Way ScreenWall ElectriMask - Manual (Page 8)

6 Stewart Filmscreen Corporation
Figure 4: Positioning the frame
Positioning the frame on the wall
1. Without the screen fabric attached, position the frame on the wall.
2. Make sure the unit is level and plumb. (You may need to use
shims between the brackets and the wall to achieve vertical
plumb).
3. Mark the position of the bracket holes on the wall. See Figure 4.
Note: Later, when the screen fabric is attached to the frame (next section),
you will hang the frame on the wall.
Caution
If the unit is not mounted so that it is level and plumb,
horizontal masking panels may jam on retraction.
Wall Bracket
Wall Bracket