Stewart Filmscreen Corp A Electriscreen, Owner'S Manual

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Model A Electriscreen: Owner’s Manual 13
Modifying the extension of the screen
You can increase the extension of the screen up to 3" (7.6 cm) p ast the
factory preset stop, or you can decrease the extension by approximately
4-6" (10-15 cm) from the factory preset stop. Do not attempt to modify the
screen extension beyond these recommended amounts.
The limit switches are located on the lef t side of the screen roller tube inside
the case, as shown in Figure 1
1 .
To increase the screen's fully extended (screen down) stop position:
1. Lower the screen to its current stop position.
2. Locate the white extension (down) limit switch located on the lef
t
side of the screen tube. Use a screwdriver to turn the switch in a
counterclockwise direction. If the power is still on, the screen will
drop incrementally as the switch is turned.
Note:
One complete turn of the switch will make approximately a
3/4" (2 cm) change in the screen's stop position.
To decrease the screen extension:
1. Lower the screen until it is extended about halfway down.
2. Locate the white extension (down) limit switch located on the lef
t
side of the screen tube. Use a screwdriver to turn the switch in a
clockwise direction.
Note: One complete turn of the switch will make approximately a
3/4" (2 cm) change in the screen's stop position.
3. Activate the screen in the down direction until it reaches the
newly reduced stop position. Repeat this procedure until the
desired stop position is reached.
Once you have made the adjustment, whenever you lower the screen, it will
automatically stop at the new position.
Note: It is recommended that you make a note of any changes made to the
factory preset.
Figure 11: Underside view
Screen
Down Limit Switch Access
Up
Limit
Switch
Warning!
The screen is fully retracted when the batten is flush with the
bottom of the case. Some of the larger unit s require the
batten to stop at approximately 1 1/2” (3.8 cm) from the bottom
of the case. Do not attempt adjustment s with the yellow
retraction (UP) limit switch that will further retract the screen.
Incorrect adjustment of the switch will cause severe screen
damage. Please consult the factory if you have any questions.