4-20. STOP/TAILLIGHT MAINTENANCE.
Button Contact Repair
Two button contacts
Intervehicular electrical cable discon-
Corrosion preventive compound (Item 7,
nected from semitrailer.
Tool kit, general mechanic's
General Safety Instructions:
Wire terminal kit
When performing electrical maintenance,
ALWAYS disconnect intervehicular electri-
cal cable from semitrailer.
a. BUTTON CONTACT REPAIR
When performing electrical maintenance, ALWAYS disconnect lnter-
vehicular electrical cable from semitrailer. Failure to follow this warning
may create a spark and explosion, resulting in serious injury or death to
Use caution not to damage lens (8).
Use a screwdriver to carefully lift up on lens (8) and remove. Remove lamp (7).
Remove four screws (5) and pull stop/taillight (4) away from light box (1) enough to gain
access to wiring inside light box.
Loosen two grommets (9) and pull brown wire (2) and red wire (10) through stop/taillight (4).
Cut brown wire (2) and red wire (10) from two button contacts (6).
Install two new button contacts (6) to ends of brown wire (2) and red wire (10). Crimp button
To ensure proper operation of stop/taillight (4), hold stop/taillight so that deeper slot of
socket is to the top. Thread brown wire (2) and red wire (10) through two grommets (9). Seat
grommets in stop/taillight with red wire to the right.
Install lamp (7).