Da-Lite Dual Masking Electrol - Manual (Page 4)

4
Screen Adjustment For 120V Screens
Dual Masking Electrol ® Instructions
CAUTION! The mask should not be field adjusted for more or less drop.
ATTENTION! Le masque ne doit pas être ajusté sur place pour régler la chute.
Surface travel is stopped automatically in the fully opened and closed positions by limit switches that are properly adjusted at Da-Lite.
Should it be necessary to adjust for more or less drop of picture, proceed in the following manner:
NOTE: Use a screw driver or allen wrench to make adjustments.
More screen drop
1. Remove access panel (Fig. 1).
2. Place operating switch in “down” position.
3. When the screen stops, turn the “down” limit knob (Fig. 2)
one-quarter turn counterclockwise. Test by raising picture
surface approximately two feet, then lower again. Repeat
until desired picture surface position is attained.
NOTE: Must leave 1-1/2 wraps of fabric on roller!
4. Replace access panel.
Less screen drop
1. Remove access panel. (Fig. 1).
2. Raise picture surface approximately two feet
above desired level.
3. Place operating switch in “off” position.
4. Turn the “down” limit knob (Fig. 2) one-quarter turn
clockwise. Test by raising picture surface approximately
two feet, then lower again. Repeat until desired picture
surface position is attained.
5. Replace access panel.
Mask Screen
Up
Down
Up
Off
Down
Black (Hot)
White (Common)
Ground Wire
Black
Red
White
Green Black
Red
White
Green Up
Down
Common
Ground
Up
Down
Common
Ground
Mask Motor
4 – Wire
Mask Motor
4 – Wire
Screen Motor
Screen Motor
120 V. AC 60 Cycle
120V Wiring Diagram