Section XXIII. LIGHTS, LIGHT ENCLOSURE, AND COMPONENTS
3-171. Cab Light
3-169. General
The lightning system consists of upper and lower
floodlights, cab lights, and panel lights, with condition
a. Removal and Installation
from junction boxes to light enclosure, or cab light
(1) Remove lamp.
lampholders. The panel lights are identical with those
(2) Refer to figure 3-124 and remove cab
on instrument control panel and are mounted at top of
light lampholder.
lighting enclosure.
(3) Install in reverse order.
3-170. Floodlights
a. Removal and Installations.
b. Inspection and Repair.
(1) Tag and remove electrical leads.
(1) Visually inspect wiring at lampholder for
good connection. Inspect for frayed or defective leads.
(2) nut (fig. 3-14) from stem inside adjusting
Test lamp for serviceability. Inspect hardware for
bracket
damage or defect.
b. Disassembly and Reassembly. Refer to figure
(2) Repair by replacing defective wiring,
3-123 and disassemble the floodlight. Reassemble in
lamp, or lampholder.
reverse order.
c. Cleaning, Inspection and Repair.
3-172. Light Enclosure
(1) Clean all metal parts in an approved
a. Removal and Installation
cleaning solvent and dry thoroughly.
(1) Remove two screws and open cover (fig.
(2) Visually inspect electrical terminals for
corrosion or looseness. Inspect and test lamp for
(2) Tag and disconnect conduit and electrical
serviceable condition. Inspect mounting hardware for
leads from light enclosure.
stripped threads or other defect Inspect packing for
(3) Remove four nuts, lockwashers, and
screws, then remove light enclosure.
(3) Repair by replacing defective lamp or
packing.
(4) Install in reverse order.
b. Component Removal Installation..
(1) Open cover.
(2) Tag and disconnect applicable lead(s),
then remove defective component
(3) Install in reverse order.
Figure 3-123.Floodlight, disassembly and reassembly
3-129
