TM-9-2320-260-20
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
APRIL 1995
TM-9-2320-260-20 - Page 73 of 1337
TM 9-2320-260-20
I
1-20. ELECTRICAL SYSTEMS OPERATION (Contd)
f. Directional Signal System Operation.
The directional signal system is identical on all models covered in this manual and consists of the
following major components and circuitry:
A FRONT COMPOSITE LIGHT
– Receives power from turn signal control through circuits 460
and 461 to indicate turning direction.
B
C
D
E
F
LIGHT SWITCH
– Provides battery power to the directional signal switch through circuits 460
and 461, and to the stoplight switch through circuit 75.
STOPLIGHT SWITCH
– Closing this switch allows power to flow from the light switch through
circuit 75 to circuit 22 to the directional signal switch.
REAR COMPOSITE LIGHT
– Receives power from turn signal control through circuits 22-460
and 22-461 to indicate turning direction.
DIRECTIONAL SIGNAL SWITCH
– A four-position switch that directs power to the composite
and signal lights through circuits 460, 461, 22-460, and 22-461 to indicate direction of turn.
TURN SIGNAL FLASHER
– Receives power through circuit 467A which causes the flasher
send intermittent current to the signal light through circuit 467B.
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