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PART 16-6-AUTOMATIC HEADLIGHT DIMMER
16-29 •
1
DIM SENSITIVITY
ADJUSTMENT
Dim sensitivity should not be
adjusted until after Hold sensitiv-
ity is properly adjusted.
1. Rotate the amplifier Dim con-
trol completely counterclockwise.
2. Rotate the tester intensity con-
trol completely counterclockwise.
3. Momentarily turn the Dim-Hold
switch on the tester to Hold, then
back to the Dim position to obtain
upper-beam.
4. Adjust the tester intensity con-
trol until the meter pointer is at the
Dim sensitivity adjustment line.
5. Slowly rotate the amplifier Dim
control clockwise, just to the point
where the headlights switch to lower-
beam. Do not go beyond this
setting.
6. Rotate the tester intensity con-
trol completely counterclockwise.
7. Turn the Dim-Hold switch to
Hold, then back to Dim to obtain
the upper beam.
EJ
REMOVAL AND INSTALLATION
If the automatic headlight dimmer
malfunctions and cannot be removed
for repair immediately, manual oper-
ation of the headlights may be ob-
tained at the foot switch, in most
cases, by removing the fuse from
the fuse holder. The fuse holder is
located in the amplifier wiring har-
ness, just a few inches from the
amplifier unit.
Should the car have to be driven
with the amplifier removed, manual
operation of the foot switch may be
obtained by replacing the dimmer
over-ride type foot switch with a
standard foot switch, and plugging
the standard car wiring to it.
PHOTOTUBE
REMOVAL
1. Disconnect
the
negative
(ground) cable from the battery.
2. Remove the screws retaining
fue upper section of the instrument
panel.
3. Remove garnish molding from
windshield pillars.
4. Carefully lift up the rear end
of the panel and pull away from the
windshield.
5. Disconnect the phototube unit
plug from the amplifier harness. Re-
move the top panel and phototube
unit.
6. Remove
the
phototube
unit
from the top panel.
INSTALLATION
1. Install the phototube unit on
the top panel.
2. Position
the top panel
and
phototube
to
permit
connecting
the phototube plug to the amplifier
harness. Then make the connection,
pushing plug down through hole in
speaker mounting plate.
3. Carefully position the top panel
and drive in the retaining screws.
4. Replace garnish moldings on
windshield pillars.
5. Connect the negative (ground)
cable to the battery.
6. Check the aim and sensitivity
adjustments
(See
In-Car
Adjust-
ments and Repairs).
AMPLIFIER UNIT AND HARNESS
REMOVAL
1. Disconnect
the
negative
(ground) cable from the battery.
2. Remove the left hand cowl
trim panel.
3. Disconnect the amplifier wiring
harness from the relay (above ampli-
fier), from the foot switch, and from
the headlight wiring harness.
4. Remove the two amplifier unit
mounting screws. Lower the ampli-
fier and disconnect the phototube to
ampiifier cable.
INSTALLATION
1.
Connect the phototube to ampli-
fier cable, position the amplifier, and
drive in the mounting screws.
2. Connect the amplifier unit to
the relay, to the foot switch, and to
the headlight wiring harness.
3. Install the left hand cowl trim
panel.
8. Slowly rotate the tester intensity
control clockwise just to the point
where the headlamps switch to upper
beam. The meter pointer should now
read in the green Dim sensitivity
range on the meter scale. If not, re-
turn to step 1 and repeat all steps.
9.
If
the adjustment is correct,
turn off the headlights and discon-
nect the tester.
10. Remove the tester lamp from
the Phototube Unit.
4. Connect the negative (ground)
cable to the battery.
5. Check the Dim and Hold sensi-
tivity adjustments (See In-Car Ad-
justments and Repairs). If the car
is to be driven without the auto-
matic headlight dimmer, install a
standard foot switch and connect
the car headlight harness to it.
FOOT DIMMER SWITCH
REMOVAL
1.
Disconnect
the
negative
(ground) cable from the battery.
(Very important.)
2. Position the left side of the floor
mat back away from tpe area of the
switch.
3. Remove two screws attaching
the switch to the floor pan. Lift the
switch from the floor pan.
4. Disconnect the wiring connect-
ors from the switch.
INSTALLATION
1. Connect the wiring conneCtors
to the switch.
2. Position the switch on the floor
pan, and drive in the two mounting
screws.
3. Position the floor mat in the
area of the switch.
4. Connect the negative (ground)
cable to the battery. Should installa-
tion of a standard foot switch be
necessary, remove the left side
cowl trim panel, and connect the
car headlight wiring harness to
the foot switch.
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