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TM 5-4120-377-14
(3) Using screwdriver, loosen two captive turnlock stud fasteners in filter retainer.
(4) Remove retainer and filter.
b. Clean filter
(1) Wash filter in a mild detergent and water solution.
(2) Rinse thoroughly in clean water.
(3) Shake out excess water prior to installation.
c. Inspection.
(1) Check filter for punctures, cuts, and damaged edges that would allow passage of unfiltered air.
(2) Check filter for packed or mashed areas that would block air flow.
(3) Replace filter if found bad.
d. Installation
(1) Place filter into retainer on left side. Be sure that air flow arrows are pointing in toward unit.
(2) Using screwdriver, secure filter retainer with two captive turnlock stud fasteners.
(3) Using screwdriver, secure intake grille assembly with six captive turnlock stud fasteners.
Figure 4-38.
Fresh Air Filter
a. Removal
(1)
(2)
(3)
Using screwdriver, remove four flat head screws and five pan head screws and flat washers.
Remove fresh air screen.
Slip filter out of unit.
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