3. Install one screw (callout 1).
NOTE: Do not fully tighten this screw.
Figure 1-280 Install the main drive assembly (3 of 8)
1
4. From the top of the product, look at each shutter arm. Make sure that they are in the closed
position (callout 1). If they are in the open position (callout 2), carefully push on the shutters to
close them.
Figure 1-281 Install the main drive assembly (4 of 8)
2
1
ENWW
Main assemblies
203