TM 9-2330-384-14&P
1-12. ELECTRICAL SYSTEM (Con't).
b. MAJOR COMPONENTS AND THEIR FUNCTION.
NAME
FUNCTION
KEY
Mounted on nose adapter at front of semitrailer. Regulates and
1
Voltage Control Unit
directs power flow from tractor to semitrailer lights. 12-volt and
24-volt electrical connectors are mounted on cover of unit.
Male connector for tractor 12-volt intervehicular plug.
2
12-volt Electrical
Connector
Used to reduce incoming 24 V to 12 V.
3
Resistors
Male connector for tractor 24-volt intervehicular plug.
4
24-volt Electrical
Connector
Protect semitrailer circuits from too much current passing through.
5
Circuit Breakers
Are a cycling or continuously self-resetting unit. Circuit breakers
CANNOT be reset manually.
Metal tubing protects individual wires, or groups of wires, from
6 Conduit
damage.
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