Symtech SCA 1 - Manual (Page 7)

4. HEADLAMP ALIGNMENT
4.1 ALIGNMENT OF OPTICAL HEAD TO VEHICLE
Place the SCA 1
ISOColor in front of the first headlamp to be
aligned. Once the SCA 1
ISOColor is in place, the lens of the
optical head should be approximately 12 inches (+/- 6 inches) from
the face of the headlamp.
Set the floor slope of the eccentric wheel for the bay in which the
vehicle has been parked.
Rotate the sighting unit so that the front of the vehicle can be seen
through the sighting unit. Locate two (2) common points on or
under the hood to align the line in the sighting unit on.
NOTE: Points can be hood stops, radiator support (s), points
of fender, etc.
Common Points
While looking through the sighting unit, align the line of the
sighting unit on the two common points by rotating the optical head
of the machine.
The SCA 1
ISOColor is now aligned with the vehicle. Repeat the
alignment process for each lamp.
4.2 CENTERING on the HEADLAMP
Turn headlamps on. Move optical head up, or down to the center of the
headlamp. Position of center of the headlamp is approximate; a
± 1.5”
allowance is acceptable.
TRICK: A method of determining if position is greater than 1.5” is by
observing the illumination that appears on the front of the optical lens
housing when moving the optical head left/right and up/down.
Position aimer until illumination is of equal proportion around lens.
H
V
High Beam
H
V
US Low Beam
V
H
Fog / Driving
Lamp
US Low Beam
VOR
Aim Area
V
H
4.3 SELECTING HEADLAMP PATTERN
Not all headlamps are created alike and different vehicles
may have different design patterns. To be certain of the
lamp pattern, a designate is located on the lamp at the
bottom of the lens. Patterns of lamps that may be aligned
with the SCA 1
ISOColor are;
•
SAE HIGH BEAM: All high beam lamps. Highest
intensity point is centered on the Horizontal /
Vertical axis.
•
SAE LOW BEAM: All low beam lamps
manufactured prior to 1999, selective manufacture
after 1999. The high intensity area is located in the
lower right hand quadrant.
•
FOG/DRIVING LAMPS: All fog/driving lamps the
top of the high intensity area is located 4” down and
centered on the Vertical axis.
•
SAE LOW BEAM “ VOR ” (Visual Optical
Right): Low beam lamps manufactured after
1999, some vehicles. The high intensity area is
located in the lower right hand quadrant and
the beam pattern is aligned by placing the right
upper portion of the beam pattern on the
Horizontal axis.
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