Vaz 21213, Руководство по ремонту, Страница: 160 / 222

Three vertical lines should be drawn on the screen (Fig.7-32):
centre line O and lines A and B through the reference points Ö cor-
responding to each headlamp center. These lines should run sym-
metrical to the centre line of the car. Draw line 1 at the height of 600
mm which is the distance to the centres from the ground and 75
mm below draw line 2 passing through the centres of the headlight
beam patterns.
Make sure the facia-mounted switch of the headlamp aim
adjustment system is in the position corresponding to the load of
the driver only.
Switch on the lower beam. Using adjustment screws 1 and 7
(Fig.7-31), align the beams, first on the right-hand headlamp
(while the other is covered with a piece of cardboard or dark
cloth) and then on the left-hand headlamp (with the right-hand
one screened).
To adjust the headlight beam in the vertical plane, turn
screws 1 and 7 simultaneously in the same direction and to the
same number of turns. The difference in turns between the
screws (with the other screw intact) should not exceed 3 turns.
Horizontally the headlights are adjusted by means of screws
1 and 7, turned in opposite directions. If one screw is turned one
turn clockwise, the other should be turned one turn anticlockwise.
Some vehicles can be fitted with the headlights without the
hydraulic beam adjuster and have an alternatively mounted
adjuster screws, when the horizontal adjuster screw is on the left,
while that for vertical adjustment is fitted at the top.
If the headlights are correctly aligned, a cut-off at the top of
the beam patterns must be at line 2 (Fig.7-32), while the inter-
section points of horizontal and angled lines should coincide with
reference points Ö.
Bulb replacement
Headlight units. To replace a bulb:
- undo securing screws 5 and remove trim 4 (Fig.7-31);
- slacken screws 3 securing the headlight optical unit rim, turn
the rim anti-clockwise to remove it;
- withdraw the headlight optical unit and renew a failed bulb;
- refit the optical unit so that the retaining lugs enter the
recesses of the headlight inner rim.
Front lights.
Undo two screws and remove the lens, then
slightly depress the bulb and turn it anticlockwise to remove.
Direction indicator side repeater. To renew a failed bulb,
first remove the holder complete with the bulb, working from the
engine bay.
Interior lamp.
To renew a blown bulb, gently pull the lens up.
The lamp is held in the recess in the door centre pillar by two
spring clips.
Rear light unit.
To replace a failed bulb in the rear light unit,
remove a plastic cap from the inside of the luggage compartment,
disconnect the terminal connector, squeeze the retaining lugs
and withdraw the base complete with the bulbs. Next depress the
bulb, turn it anticlockwise and withdraw.
Number plate light.
Undo the retaining screws, remove the
light unit, detach the reflector lens and renew a blown bulb.
Hydraulic headlight adjuster
The hydraulic headlight adjuster system consists of the mas-
ter cylinder, fitted to the instrument panel, working cylinders on
the headlamps and connecting pipes. The cylinders and pipes
are filled with non-freezing hydraulic fluid. The hydraulic adjuster
is not serviceable and has to be renewed as a complete unit,
together with the cylinders and pipes, in the event of a failure.
When the beam setting is disturbed and alignment by means
of the adjustment screws on the headlight has failed, check the
cylinders and pipes for leaks. Remove the working cylinders and
check the rod travel to be (7±0.5) mm.
To replace a faulty headlamp adjuster, detach the pipe clips
from the wiring clamps, remove the control knob from the master
cylinder and undo the mounting nut. Detach the working cylinders
from the headlight units and push them together with seals into
the passenger compartment. Refit a new headlamp adjuster
using the reversal of the removal procedure.
Steering column combination switch
The steering column switch is secured to the steering column
support bracket with the help of the retaining strap.
Observe the following procedure when removing the steering
column combination switch:
- remove the steering wheel;
- remove both steering column shrouds;
- remove the instrument cluster and disconnect the steering
column switch wiring;
- release the retaining strap and withdraw the steering column
switch.
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Fig.7-32. Headlight alignment