4-112. AIR CONDITIONER FILTER AND COVER REPLACEMENT (M373A3, M373A4, AND
Remove each stud (11) and eyelet (12) from cover (6).
Remove gasket (5) from frame (1). Discard gasket.
Remove two screws (3) securing each receptacle (2) to frame (l). Remove receptacles.
CLEANING AND INSPECTION
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open flame or excessive heat.
The solvent's flash point is 100F-138F (38C-59C). If you become dizzy while
using cleaning solvent, Immediately get fresh air and medical help. If solvent contacts
eyes, immediately wash your eyes and get medical aid.
Clean all parts with dry cleaning solvent and dry thoroughly. Ensure that bonding surfaces on frame for gasket is
clean and dry.
Inspect cover for warpage and distortion. Straighten if necessary.
Inspect hinge for straightness and deterioration. Replace damaged hinge.
Inspect all other parts for defects and damage. Replace defective and damaged parts.
Use adhesive to install new gasket (5) on frame (l).
Install each receptacle (2) on frame (1) using two screws (3).
Install each strike (14) on cover (6) using two new rivets (13).
Install eyelets (12) and studs (11) in cover (6).
Install hinge (7) on cover (6) using seven new rivets (1 O).
Install filter (4) in frame (1) using eight screw (15) and new Iockwashers (16).
Install hinge (7) on frame (1) using six screws (9) and new Iockwashers (8).