TM 9-4120-371-14
b. Installation - fresh air cover(s)
(1) Using screwdriver, remove five pan head screws and flat washers and four flat head screws from
fresh air (inlet) screen.
(2) Remove fresh air inlet screen. Store in safe place.
(3) Using screwdriver, install fresh air covers using same hardware that was removed from fresh air
(inlet) screen.
c. Maintenance of blast damper assembly is limited to the following:
(1) Air filter inspection/cleaning.
Release filter retainer spring clips and remove air filter.
