TM 9-4120-388-14
4-33. CONDITIONED AIR FILTER - Continued.
Inspection.
c.
(1) Check fitter for punctures, cuts, and damaged edges that would allow passage of unfiltered air.
(2) Check filter for packed or mashed areas that would block airflow.
(3) Replace filter if found bad.
d. Installation.
(1) Place filter into retainer on left side. Be sure that airflow arrows are pointing in toward unit.
(2) Secure filter retainer with two captive turnlock stud fasteners.
(3) Secure intake grille assembly with six captive turnlock stud fasteners.