Section XXIII. LIGHTS, LIGHT ENCLOSURE, AND COMPONENTS
(1) Remove lamp.
3-180. General
(2) Refer to figure 3-140 and remove cab
The lightening system consists of upper and lower
light lampholder.
floodlights, cab lights, and panel lights, with conduit
(3) Install in reverse order.
from junction boxes to light enclosure, or cab light
b. Inspection and Repair.
lampholders. The panel lights are identical with those
(1) Visually inspect wiring at lampholder for
on instrument control panel and are mounted at top of
continuity. Inspect for frayed or defective leads. Test
lighting enclosure.
lamp for serviceability. Inspect hardware for damage or
defect.
3-181. Floodlights
(2) Repair by replacing defective wiring,
a. Removal and Installation.
lamp, or lampholder.
(1) Tag and remove electrical leads.
(2) Remove nut (fig. 3-17) from stem inside
3-183. Light Enclosure
adjusting bracket.
a. Removal and Installation.
(1) Remove two screws and open cover (fig.
reverse order.
(2) Tag and disconnect conduit and electrical
c. Cleaning, Inspection, and Repair.
leads from light enclosure.
(1) Clean all metal parts in an approved
(3) Remove four nuts, lockwashers, and
cleaning solvent and dry thoroughly.
screws, then remove light enclosure.
(2) Visually inspect electrical terminals for
(4) Install in reverse order.
corrosion or looseness. Inspect and test lamp for
b. Component Removal or Installation.
serviceable condition. Inspect mounting hardware for
(1) Open cover.
stripped threads or other defect. Inspect packing for
(2) Tag and disconnect applicable leads(s),
then remove defective component.
(3) Repair by replacing defective lamp or
(3) Install in reverse order.
packing.
3-184. Gun Case and Tool Box
3-182. Cab Light
Refer to figure 3-141 and remove gun case or tool box.
a. Removal and Installation.
Install in reverse order.
Figure 3-139. Floodlight, disassembly and assembly.
3-150
