TM 9-4120-371-14
Be sure input power is disconnected before doing any work inside the air conditioner
cabinet. Voltages used can be lethal.
a. Using screwdriver, loosen six captive turnlock stud fasteners in intake grille.
Figure 49. Alternate Cable
Connections Through Return (Intake) Duct
b. Remove grille.
c. Using screwdriver, loosen two captive stud fasteners in filter retainer.
d. Remove retainer and filter.
e. If intake grille, retainer, and filter are not to be installed in facility duct work, store them in a safe place.