4-107. SIGNAL ENTRY BOX AND POWER ENTRY BOX REPLACEMENT (M348A2K AND
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 cover and
semitrailer for gaskets and frame are clean and dry.
Inspect cover and frame for warpage and distortion. Straighten if necessary.
Inspect hinges for straightness and deterioration. Replace if damaged.
Inspect shields for warpage and distortion. Straighten if necessary.
Inspect all other parts for defects and damage. Replace defective and damaged parts.
Press stud (29) into cover (18). Install new locknut (32), plate (33), flatwasher (34), and wingnut (35) on stud.
Install strap (31 ) on cover (18) using two new rivets (30).
Install shield hinge (25) on each shield (26) using nine new rivets (27).
Install each shield hinge (25) on cover (18) using nine new rivets (28).