4-102. LOUVER ASSEMBLY REPLACEMENT (M348A2C, M348A2D, AND M348A2F)
Inspect louvers inside frame for bends, dents, distortion, or damage. Replace frame if louvers are damaged.
Inspect all other parts for defects and damage. Replace defective and damaged parts.
Apply metal seam sealing tape around opening where frame (1) installs.
Use adhesive to install new gasket (3) on frame (l).
Install frame (1) on semitrailer using screws (7).