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1-6
AUTO PILOT
N K353
Fig. 5-Auto
Pilot Brake Switch
2
terminal (Fig.
4).
If the lamp fails to light, test for
"open" connections in the blue wire between the auto-
pilot and the auto-pilot brake switch. If the circuit is
"open" at the brake switch, test the brake switch ad-
justment.
NOTE:
It is important that this adjustment
be
carefully performed to insure proper auto-pilot o p
eration.
Adjust the brake switch (Fig.
5)
until the light goes
out with approximately % to
Y 2
inch of brake pedal
movement.
For convenience in adjusting the brake switch, the
test
lamp can be connected to the "Blue Wire" side
of the switch.
(5)
Terminal No.
3
(Black
WireLInsert
one lead
of the
test
lamp in the No. 1 terminal and the other
lead of the test lamp in the No. 3 terminal (Fig.
4).
The test lamp should light. If the lamp fails to light,
test for an "open" circuit in the black wire circuit
between the auto-pilot and the instrument panel con-
trol. If the lamp still fails to light, inspect the instru-
ment panel control for proper grounding. When the
control
button
is
pushed in,
the lamp should go
out
if
the circuit
is wired correctly.
INSTRUMENT PANEL CONTROL DIAL
CALIBRATION
(1)
On a level stretch of road engage the auto-pilot
at the full counterclockwise dial position. Carefully in-
crease the dial setting to the "3" mark on the dial,
being careful not to overshoot the "3" mark. If the
"3" mark is overshot, repeat the setting procedure
from below the "3" mark.
(2)
Record the speedometer reading with the dial
at the "3" mark.
(3) Move the dial to the
"4"
mark and record the
speedometer reading, again being careful not to
overshoot the
"4"
mark.
(4)
Repeat the procedure at higher speeds until the
normal driving range has been covered.
(5)
Repeat the procedure as the dial position is
lowered through the normal driving range being
careful to avoid downward overshooting of the de-
sired mark on the dial.
(6) Examine the recorded speedometer readings at
each dial setting for both "upward" and "downward"
indications and adjust the dial for the best overall
correlation between the auto-pilot control dial and
the speedometer.
Remove the reset button, washer and control knob.
The dial can be adjusted by loosening two cross
re-
cess screws holding the dial to the control knob and
rotating the dial with respect to the knob the desired
amount. Tighten the calibration screws, install the
knob and check the calibration. If the calibration is
satisfactory, install the washer and reset button.
DRIVE MECHANISM
Removal
(1) Disconnect the wiring connector at the drive
mechanism.
(2)
Disconnect the drive cable and speedometer ca-
ble at the drive unit.
A small piece of tape will prevent the ferrule nut
on the drive cable from falling down the cable.
(3) Loosen the set screw at the lower end of
the
dust shield. It is not necessary to remove the screw.
(4)
Turn and pull the dust shield from the housing
and slide the dust shield down the cable and slip the
ball end of the control cable out of the socket.
(5)
Disconnect the accelerator linkage from the ex-
terior arm on the drive unit.
(6) Remove the bolts and nuts securing the drive
mechanism to the mounting brackets and remove the
drive mechanism leaving the brackets in the vehicle.
Installation
(1)
Position the drive mechanism on the mounting
brackets and install the mounting bolts and nuts.
(2)
Connect the drive cable and speedometer cable
to the drive mechanism.
(3) Connect the accelerator linkage to the exterior
arm on the drive mechanism. Adjust the linkage.
(4)
Install the ball end of the control cable in the
socket on the drive mechanism.
(5)
Install the dust shield on the housing. Push in
and turn clockwise. Do not tighten the set screw on
the end of the dust shield until after the control cable
is properly adjusted.
(6) Adjust the control cable.
(7)
Connect the wiring connector at the drive mech-
anism.
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