TM 5-4930-218-14
abraded, frayed, or deteriorated insulation, broken
(6) Remove screws (20, 25, and 34, fig. 4-15), nuts
wires, damaged terminals, and other damage. Clean
(21, 26, and 35), lock washers (22, 27, and 36), flat
corroded terminals with fine sandpaper, Replace
washers (23, 28, and 37), and cable clamps (24, 29, 38,
damaged wiring harnesses.
and 39) that secure the wiring harness (42) to the
trailer.
(3) Inspect circuit breakers for cracks, signs of
overheating, and damaged leads; replace if defective,
(7) Disconnect and remove the amber service
(4) Inspect all cable clamps for cracks and
clearance lights (30), amber blackout clearance lights
damage; replace if defective.
(31), red service clearance lights (32), red blackout
c. Reassembly and Installation. Reassembly and in-
clearance lights (33), stop and tail lights (40), and
stallation are the reverse of removal and disassem-
blackout stop and tail lights (41). Remove the wiring
bly. Refer to figures 4-15 and 4-16. Install the elec-
harness (42).
trical wiring on the trailer. Also refer to the chassis
b. Cleaning and Inspection.
electrical system wiring diagram in figure 1-4.
(1) Clean the wiring harnesses, circuit breakers,
and terminal board by wiping with a soft, dry cloth.
If necessary, you can wipe off deposits of grease with
a cloth lightly dampened with dry cleaning solvent
a. Lamp Replacement.
(fed. spec. P-D-680), if you take care not to saturate
(1) Remove the six screws (1, fig. 4-17) that
the leads.
secure the door (2) to the lamp body; remove the door,
seals (3), and gasket (4).
(2) Inspect the wiring harnesses for cracked,
