TM 5-6675-270-15
Section XXXV. ELECTRICAL lLLUMINATION
ASSEMBLY
moistened in grain alcohol or acetone. Brush all
6-137. General
threaded surfaces free of dirt and foreign matter.
The electrical illumination assembly is used to
Clean any corrosion from the connector contact
permit night and dark day reading of plate and
.
pins.
collimation levels and to illuminate the horizontal
b. Inspection. Inspect the lens for cracks or
and vertical circles.
chips. Inspect the lampholder, light cover, and
knob for cracks, breaks, and dents. Inspect the
6-138. Disassembly
electrical cable insulator for wear or deterioration.
Refer to figure 6-16 and disassemble the electrical
c. Repair. Smooth out minor dents. Repair
illumination assembly.
minor insulation damage to the cable with tape.
Replace defective parts that cannot be repaired.
6-140. Assembly
a. Cleaning. Clean all metal parts with a clean-
Refer to figure 6-16 and assemble the electrical
ing solvent. Wipe the electrical cable clean with a
illumination assembly.
cloth. Clean and polish the window with lens tissue
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