Cadillac 60 Series 1963 Shop Manual page 357

12-76
ELECTRICAL SYSTEM
Contact- -M
Arm QH
Clamp-^y?
/
Governor
Weight Wedge
J-8547
Feeler
r
Gage
^ Grounding
f
^^Sk>
Point
.Clamp \
L—- Screw , > Locking
V»' Arm Gage
Actuator J-7652
Fig. 12-94 Grounding Point Adjustment
(Contact Arm Centered)
actuator until contact arm is centered between
the two grounding points on the magnet assembly.
Then tighten clamp screw and recheck gap.
34. Remove Locking Arm Gage and Governor
Weight Wedge.
35. Turn drive screw to move magnet assembly
all the way toward motor side of housing to avoid
any contact between contact arm and the grounding
point on the motor side of the magnet. This must
be done to prevent preloading of the governor
spring by the contact arm before adjusting the
compressor rod.
36. Hold housing in an upright position, and
install ball socket on compressor rod. Turn ball
socket until compressor cap on compressor rod
just rests on governor spring without exerting
pressure against spring. Then loosen ball socket
one complete turn and tighten locknut. This will
provide the correct low speed calibration for the
power unit.
37. Install cover, making certain that rubber
seal and felt seal are properly seated in grooves
of cover and housing. Secure cover with four
screws.
98. Diagnosis
Since .Cruise Control is mechanically driven
and electrically operated, diagnosis and trouble
shooting procedures involve both mechanical and
electrical tests. Electrical tests are to be made
with ignition "on". Do not start engine.
Possible malfunctions requiring service on the
Cruise Control unit will fall under one of the
following categories:
1. No Cruise Control response.
2. Constant pressure on accelerator pedal r e -
gardless of selector setting.
3. No automatic control when slide switch is
moved to lock position.
4. Automatic control engages at selected speed
without pushing slide switch to lock position.
5. Automatic control remains engaged when
brake pedal is touched.
6. Automatic control remains engaged when
slide switch is pushed to the "off" position.
7. Pulsating accelerator pedal.
8. Engine does not return to normal idle.
9. Speedometer does not register or unit does
not operate.
10. Noisy speedometer.
11. Blown fuse.
12. Unit does not control at selected speed.
The following mechanical and electrical tests
will aid in isolating and correcting the above
conditions. Diagnosis and trouble shooting pro-
cedures must be followed to make certain that
the trouble is in the unit itself, and not in some
other component of the system.
a. Operational Test
1. Turn ignition switch "on". Do not start
engine.
2. Move Cruise Control selector dial to lowest
speed position.
3. Depress accelerator pedal to wide open po-
sition.
4. Push slide switch to "lock" position and
allow to come back to "on". If accelerator pedal
stays in the depressed position, electrical circuit
and selector control mechanism is operating pro-
perly.
5. Slowly depress brake pedal. If accelerator
pedal returns to the idle position, brake pedal
switch is operating properly.
6. Perform steps 3 and 4.
7. Turn off ignition switch. If accelerator pedal
returns to the idle position, the ignition switch
portion of the electrical circuit and latching mech-
anism is operating properly.
8. Perform steps 3 and 4.
9. Turn slide switch to "off" position. If ac-
celerator returns to idle position, and then can be
pushed to the floor without encountering resist-
ance, omni-switch is operating properly.