Mitsubishi Lancer Evolution 7. Manual — part 384
CHASSIS ELECTRICAL -
Headlamp Assembly
54A-25
4. If the fuel tank is not full, place a weight in luggage room
of vehicle to simulate weight of a full tank 0.8 kg per litre.
5. There should be no other load in the vehicle other than
driver or substituted weight of approximately 75 kg placed
in driver’s position.
6. Thoroughly clean headlamp lenses.
7. Place the vehicle on a level floor, perpendicular to a flat
screen 10m away from the bulb center-marks on the
headlamp lens.
8. Rock vehicle sideways to allow vehicle to assume its
normal position.
9. Bounce the front suspension through three (3) oscillations
by applying the body weight to hood or bumper.
HEADLAMP ADJUSTMENT
<USING A SCREEN>
Low Beam Adjustment
1. Four lines of adhesive tape (or equivalent markings) are
required on screen or wall:
(1) Position a vertical tape or mark so that it is aligned
with the vehicle centre line.
(2) Measure the distance from the centre-marks on the
low beam headlamp lens to the floor. Transfer the
measurement to the screen. Horizontal tape or mark
on the screen is for reference of vertical adjustment.
(3) Measure the distance from the centre line of the
vehicle to the centre of each low beam headlamp.
Transfer the measurement to the screen. Vertical
tape or mark on the screen with reference to the
centre line of each low beam headlamp bulb.
2. Check if the low beam shining onto the screen is at the
standard value.
Standard value:
(Vertical direction)
120 mm (0.69_) below horizontal line (H)
(Horizontal direction)
Position at which the startup point of 15_ is
crossed with vertical line (V)
(1)
(2)
(3)
Headlamp centre
line(low beam)
Vehicle centre line
Screen
10 m
In the centre of
headlamps (low beam)
(3)
Distance of
vertical direction
[120mm(0.69_)]
Lamp centre
15_
High intensity zone
(H)
(V)
CHASSIS ELECTRICAL -
Headlamp Assembly
54A-26
Limit:
(Vertical direction) ± 0.29_
(Horizontal direction) ± 0.5_
NOTE
The illustration shows L.H. drive vehicles. For R.H. drive
vehicles, it is symmetrical.
3. Alternately turn the adjusting screw to adjust the headlamp
low beam aiming.
Caution
Be sure to adjust the aiming adjustment screw in
the tightening direction.
High Beam Adjustment
1. Four lines of adhesive tape (or equivalent markings) are
required on screen or wall:
(1) Position a vertical tape or mark so that it is aligned
with the vehicle centre line.
(2) Measure the distance from the centre-marks on the
high beam headlamp lens to the floor. Transfer the
measurement to the screen. Horizontal tape or mark
on the screen is for reference of vertical adjustment.
(3) Measure the distance from the centre line of the
vehicle to the centre of each high beam headlamp.
Transfer the measurement to the screen. Vertical
tape or mark on the screen with reference to the
centre line of each high beam headlamp bulb.
Horizontal
direction
Vertical
direction
Horizontal
direction
Vertical
direction
(1)
(2)
(3)
Vehicle centre line
Screen
10 m
In the centre of
headlamps (high beam)
Headlamp centre
line(high beam)
(3)
CHASSIS ELECTRICAL -
Headlamp Assembly
CHASSIS ELECTRICAL -
Headlamp Assembly
54A-27
2. Check if the high beam shining onto the screen is at the
standard value.
Standard value:
(Vertical and horizontal direction)
The center of high intensity zone is on the
point of intersection of line (H) and line (V).
Limit:
(Vertical direction) -0.5_ of the point of
intersection of line (H)
(Horizontal direction) ± 0.5_
of the center
of line (V)
3. Alternately turn the adjusting screw to adjust the headlamp
high beam aiming.
Caution
Be sure to adjust the aiming adjustment screw in
the tightening direction.
<USING A BEAM SETTING EQUIPMENT>
1. The headlamps should be aimed with the proper beam
setting equipment, and in accordance with the equipment
manufacture’s instructions.
NOTE
If there are any regulations pertinent to the aiming of
headlamps in the area where the vehicle is to be used,
adjust so as to meet those requirements.
2. Alternately turn the adjusting screw to adjust the headlamp
aiming. (Refer to P.54A-24.)
Lamp centre
High intensity zone
(H)
(V)
Vertical
direction
Vertical
direction
Horizontal
direction
Horizontal
direction
CHASSIS ELECTRICAL -
Headlamp Assembly
54A-28
HEADLAMP INTENSITY MEASUREMENT
1. Using a photometer, and following its manufacture’s
instruction manual.
2. Maintain an engine speed of 2,000 r/min., with the battery
in the charging condition
3. Set the headlamps to high beam
4. Measure the headlamp centre intensity (a point of H line
and V line) and check to be sure that the limit value
is satisfied.
Limit:
High beam 30,000 cd or more per one headlamp
NOTE
1. There may be special local regulations pertaining to
headlamp intensity, be sure to make any adjustments
necessary to satisfy such regulations.
2. If an illuminometer is used to make the measurements,
convert its values to photometer values by using the
following formula.
I = Er
2
Where:
I=intensity (cd)
E=illumination (lux)
r=distance (m) from headlamps to illuminometer
Caution
1. On the headlamp not yet adjusted, perform aiming
with connector removed and the lamps switched off,
if applicable. In addition, care should be taken to
prevent a change of optical axis when connector is
reconnected.
2. Plastic outer lens are equipped with headlamps. When
lens surface is covered with materials for not
penetrating light, headlamp operation time should be
within 3 minutes. In addition, masking such as taping
should not be performed.
HEADLAMP BULB (LOW BEAM)REPLACEMENT
(1) Disconnect battery.
(2) Disconnect connector.
(3) Screw out socket to pull out bulb.
(4) After bulb is replaced, properly reconnect connector.
Caution
Do not touch bulb surface bare-handed or with dirty
gloves. If dirt is attached on glass surface of the bulb,
immediately use alcohol or thinner to remove dirt, and
install the bulb after well dried.
Headlamp bulb
<Low beam>
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