4-14. VOLTAGE CONTROL UNIT REPLACEMENT (Con?).
When performing electrical maintenance, ALWAYS disconnect inter-
vehicular electrical cable from semitrailer. Failure to follow this warning
may create a spark and explosion, resulting in serious injury or death to
Ensure that all wire connections are made to clean, uncorroded surfaces.
Coat all wire connections with corrosion preventive compound before they
Thread wires through holes in bottom of voltage control unit (5). Install four connectors (11)
to voltage control unit (5) with four new locknuts (8). For ease of installation, install outer
Install voltage control unit (5) to nose adapter (1) with four screws (9), eight new starwashers
(7), and four new locknuts (6).
Refer to paragraph 4-30, Wiring Diagrams, and connect all terminals (2) to circuit breakers
(12). Install 18 nuts (4).
Close voltage control unit cover (3) and tighten two screws (10).
Check operation of lights (see TM 9-2320-273-10 or TM 9-2320-283-1 0).