4-102. LOUVER ASSEMBLY REPLACEMENT (M348A2C, M348A2D, AND M348A2F).
This Task Covers:
b. Cleaning and Inspection
General mechanic's tool kit
This procedure is typical for all of the louver assemblies installed on the M348A2C,
M348A2D, and M348A2F semitrailers. Exact configuration may vary from what is
illustrated. Quantity of captive screws and other attaching hardware varies and Is not
specified within the procedure.
Release thumbscrews (6) and open access door (4).
If thumbscrew (6) is damaged, remove thumbscrew and flatwasher (5) from access door (4).
Remove hinge pin (2) from access door (4) and frame (l). Remove access door from frame.
Remove gasket (3) from frame (1). Discard gasket.
Remove screws (7) and frame (1) from semitrailer.
Remove metal seam sealing tape from surface where frame installs.
CLEANING AND lNSPECTION
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
and metal seam sealing tape are clean and dry.
Inspect access door and frame for warpage and distortion. Straighten if necessary.
Inspect hinge for straightness and deterioration, Replace access door or frame if hinge is damaged.