Unscrew the chain-mounted thumbscrews
until the filter frame is released.
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, NSN 4130-00-860- 0042.
Installation. Install the air filter assembly as
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
outside of the door and secure the chain-mounted
Release the bracket hinged weather cover
retaining rod and close weather cover.
Secure the weather cover fasteners.
Section XXIV. MAINTENANCE OF LADDER
A steel ladder, used to gain entry to the shelter when
truck mounted, is located on the shelter wall, left of the
shelter door. Two metal clamps are also attached to the
ladder for securing while in use. (See fig. 4-31.)