Cadillac 60 Series 1963 Shop Manual page 327

12-46
ELECTRICAL SYSTEM
Retainer
Contact Plate
Insulator
Spring Retainer
Horn Control Shroud *
\
Screw
Rubber Cushion
Horn Ring
Insulator
Fig. 12-68 Horn Contact Assembly Disassembled
6. Remove retainer, rubber cushion, contact
plate, spring and insulator, spring retainer and
horn ring insulator.
b. Installation
1. Invert shroud, install horn ring insulator,
making certain that insulator is properly seated.
CAUTION: Use care so as not to damage
insulator.
2. Install spring retainer with horn contact
wire, insulator and spring, contact plate, rubber
cushion and retainer.
NOTE: When installing contact plate, make
certain that spring and insulator are properly
seated in plate recess, and that center lines of
locating tabs on contact plate are perpendicular
to center line of shroud arms. Install retainer
4
with flat side against rubber cushion, positioning
notch in retainer over locating tab on shroud.
3. Depress contact plate until it bottoms and in-
stall four screws securing retainer to shroud.
4. Position horn control shroud on steering
wheel so that locating tab on bottom of shroud is
positioned opposite shortest spoke extension in-
side hub, taking care that locating tabs on contact
plate are positioned in wheel puller holes in
steering wheel hub.
5. Install upper steering shaft nut, tightening
to 50 foot-pounds.
6. Connect horn contact wire to top of steering
shaft.
7. Install cap on steering wheel and horn con-
trol shroud, aligning keyway in cap with key in
shroud.
67. Clock Regulation and Resetting
The accuracy of automobile clocks operating on
direct current should not be compared too closely
with that of electric clocks operating on alter-
nating current. The frequency of alternating
current is controlled and corrected constantly
at the power source, thereby eliminating ac-
cumulation of errors. A car clock is spring-
operated and electrically wound. Time errors are
accumulated day by day.
An automobile clock is considered a good time
piece when at normal temperatures the consistent
gain or loss does not exceed seven minutes per
week. Accumulation of this error, during a month,
may amount to as much as thirty minutes.
The owner must, therefore, anticipate resetting
the hands occasionally to the correct time. This
should be explained to owners at time of new car
delivery. It is possible to regulate the clock so
that the variation will be less than seven minutes
weekly if care is taken in adjusting the regulator
as described below.
The reset knob projects from the center of the
lower edge of the clock. To reset, pull reset knob
all the way out: and turn until hands are at desired
time. Care should be taken to keep the reset knob
fully pulled out during adjustment. Otherwise,
automatic regulator will not engage. Resetting
the clock in either direction will automatically
regulate the clock to run approximately 20 sec-
onds per day faster or slower, depending on which
way the clock is set. If more than a 20 second
adjustment is required, reset the clock after 12
hours have elapsed. This setting will give an ad-
ditional 20 seconds slower or faster, depending on
which way the setting is made.
The special oils used to lubricate automotive
clocks tend to deteriorate with age. If timekeeping
characteristics of the clock become erratic, it
should be removed and sent to the clock manu-
facturer's authorized clock repair station for
cleaning and re-oiling. Cleaning and lubrication
is recommended at least once every two years.
68. Removal and Installation
a. Removal
1. Rotate clock counterclockwise approximately
60° and pull clock from bezel.
2. Disconnect clock feed wire and bulb connec-
tor from back of clock and remove clock.
b. Installation
1. Connect clock feed wire and bulb connector
to back of clock.