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10-86 SIGNAL SYSTEMS
ELECTRICAL SYSTEMS
(362)
relay winding to ground at the horn button.
This magnetizes the relay core, which attracts
the flat steel relay armature. The armature has
a contact point which makes contact with a
stationary point to close the horn circuit. When
horn button is released, current stops flowing
through relay winding so that the core loses its
magnetism; the armature spring then causes
contact points to be separated.
the monogram and bezel assembly are removed,
the operating ring and wheel base assembly
may be removed by removing the three screws
which attach the wheel base to the steering
wheel hub. See figure 10-111.
The horn button assembly used in the solid
spoke wheel consists of a button, contact, rub-
ber separator and lock ring. A spring holds the
wire connection against the center of the con-
~?r--I-----:~l=:::±~LsPRING
===-
~ ~~~i§~~~~!~~~SPRI N G
WHEEl SPOKE
WIRE CONNECTION
SPRING
rR\
A-VIEW SHOWING
RING,
CONTACT PLATE & SPRINGS
MONOGRAM &
BEZEl ASSEMBLY
OPERATING RING
L.
WASHER
SCREW---'1'.-f
B-VIEW SHOWING BASE & CONTACT PLATE FASTENINGS
Figure I 0-11 I-Horn Button in Flexible Spoke Steering Wheel-
Sectional View
The horn button used with the flexible spoke
steering wheel includes an operating ring and
a contact plate mounted in the steering wheel
cap base. A spring holds the wire connection
against the center of the contact plate which is
insulated from the wheel cap base. When the
operating ring is pressed it touches the contact
plate to close the circuit to
ground,
thus com-
pleting the relay circuit and causing the horns
to operate. Springs cause the operating ring to
move away from the contact plate and open
the relay circuit when the operating ring is
released. See figure 10-111.
The monogram and bezel assembly is held
in the steering wheel cap base by three springs.
The assembly may be removed by inserting a
small screw driver in a notch provided in the
cap base and prying against the bezel. When
tact plate at all times. Contact to ground is
made between the outer edge of the contact
plate and lock ring, thus completing the circuit
when button is pressed. See figure 10-112.
The horn button may be removed by prying
on the outer edge of the button with a small
screwdrivel'.
Figure I 0-112-Horn Button in Solid Spoke Steering Wheel-
Sectional View
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