Chevrolet 30 Series 1967 Service Manual page 505

4. Move the slider to a position halfway between this
recorded numeral and the numeral "2 " in the DOWN
window. (This numeral is used only in recalibration
and not for headlamp aiming.)
5. Recalibrate aimers by turning screw shown in Fig­
ure until the bubble is centered.
8
. The T-3 Aimers are now calibrated for the selected
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area. All future aiming must be done in the same
area and with the car pointed in the same direction.
SEALED BEAM UNIT REPLACEMENT (Fig. 9)
1. Remove bezel retaining screws and bezel.
2. Disconnect wiring harness connector located at rear
of unit in engine compartment.
3. Disengage spring from retaining ring.
4. Turn headlamp unit to disengage assembly from
headlamp adjusting screws.
NOTE: Do not disturb adjusting screw setting.
5. Remove retaining ring and headlamp from mounting
ring.
. Position new sealed beam unit in mounting ring and
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install retaining ring.
NOTE:
The number molded into lens face must
be at top.
7. Install headlamp assembly in panel opening, twisting
slightly to engage mounting ring tabs with adjusting
screws.
. Install retaining ring spring and attach wiring har­
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ness connector to unit, then check operation of unit
and install bezel.
PARKING LAMP HOUSING REPLACEMENT (Fig. 9)
1. Remove retaining screws and lens from housing.
2. Replace bulb and check operation of unit.
3. Install lens and retaining screws.
SERVICE OPERATIONS
PARKING LAMP BULB REPLACEMENT (Fig. 9)
1. Remove headlamp bezel on 40-60 series trucks.
2. Remove lamp housing retaining nuts, and disengage
assembly from grille or panel opening.
3. Disconnect parking lamp wiring from forward wiring
harness.
4. Connect wiring of new unit to vehicle harness.
5. Position lamp housing in grille or panel opening, as
appropriate and install retaining nuts.
. Install bulb, lens and bezel as required.
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REAR LIGHTING (Fig. 10)
Exploded views of the different rear lighting arrange­
ments are shown in Figure 10. The bulbs may be re­
placed by removing the lamp lens attaching screws and
lamp lens. The lamp housings may be replaced by re­
moving the housing attaching nuts or screws, or by
removing the nuts and bolts from the bracket.
DIRECTIONAL SIGNAL LAMPS
Directional Signal lights are either an integral part of
the parking and taillight assemblies or are mounted on
each side of cab (tilt cab only).
NOTE:
assemblies for directional signals; refer to ap­
plicable light assemblies for bulb replacement.
ELECTRICAL—BODY AND CHASSIS 12-5
Fig. 8 - Turning Level Adjusting Screw
to C a lib ra te Aim er
On vehicles using parking and taillight
CHEVROLET TRUCK SERVICE MANUAL