4-32. MARKER CLEARANCE LIGHT MAINTENANCE (Cont).
Remove two screws (1) from retainer (2) and plate (7). Remove retainer.
Remove four screws (10), plate (7), and preformed felt (9) from semitrailer.
Disconnect clearance light lead (8) from semitrailer chassis wiring harness.
CLEANING AND INSPECTION
Dry cleanlng solvent, P-D-680, is toxic and fiammable. 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 frame or excessive heat.
The solvents flash point is 100°F-138°F (38°C-59°C). 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, except rubber items and preformed felt, with dry cleaning solvent.
Inspect retainer for cracks, warpage, cracked or broken lens, or evidence of leakage. If defective, remove two
nuts (4) and lens from studs on door. Install lens and nuts in door.
Check socket to ensure that all parts are in good condition and will make a good electrical and watertight
Straighten any bent or dented parts. Sandpaper and paint as necessary. Replace light if internal parts are