Remove the filter and frame assembly from the outside of the door.
Remove the door air filter by pulling the foam material from the frame.
Cleaning. Clean the filter material by washing in a soap and water solution. Dry thoroughly and spray with air
filter coater, (Item 2, App. D).
Installation. Install the air filter assembly as follows:
Insert the foam material under the bottom lip of the filter frame. Tuck in the remaining sides of the filter
under the other three lips of the frame.
Position the frame assembly from the out- side of the door and secure the interior thumbscrews.
Release the bracket hinged weather cover retaining rod and close weather cover.
Secure the weather cover fasteners.
Figure 4-20. Shelter Door Air Filter, Removal and Installation.