Symtech SCA 1 User Manual
Page 5

Place a thick nylon bushing on the screw and insert 
screw through the holes provided at the top of the 
mast, place a thick nylon bushing on screw and self-
locking nut. 
Tighten to a tension that allows for movement of 
sighting unit, but provides sufficient friction to hold 
unit in place when unattended. 
NOTE: The mast has two sight unit mounting positions, mount in
the position that is most comfortable for the technician to 
sight through 
Sighting unit must be calibrated to the optical head prior 
to alignment of headlamps. 
Optical 
 Head 
IN
Calibration
 OUT of 
Calibration 
Adjustment
Thumb Screws
Optical 
 Head 
2.5 SIGHTING UNIT CALIBRATION
Calibration of sighting unit must be performed prior to alignment of 
headlamps. 
Raise optical head of SCA 1
ISOColor to the approximate center of
mast.
Turn the sighting unit until you can see the front edge of the optical 
head while looking through the sighting unit lens. Line on lens 
should line up with the front edge of the optical head. 
If line does not line up with the front edge of optical head, loosen 
the thumbscrews on the lens and move the lens into alignment. 
Tighten thumbscrews. 
It is important that periodical checking of calibration of the sighting 
unit be performed, to assure proper calibration. 
NOTE: When technicians of differing heights are using the SCA 1
ISOColor and the sighting unit is relocated to the optional 
mounting position for better viewing, the sight unit must be 
checked for calibration and adjustment made accordingly. 
 
2.6 FLOOR SLOPE LASER 
The floor slope laser assembly is factory calibrated, DO 
NOT turn the level adjustment set screw. 
The laser is used for floor slope measurement only. Remove 
laser after floor slope measurements have been recorded. 
On / Off
Knob
 Level Adjuster 
 Set Screw 
Fixture
Placement Pin
ON/OFF
Knob
Remove floor slope laser from packaging and insert front 
fixture placement pin into hole on top and at front of the 
rear area of the optical head, also there is an indentation 
provided for the height adjustment screw to rest within. 
Activate the laser by turning ON/OFF knob clockwise 
(CAUTION: Excessive turning may damage laser 
ON/OFF mechanism) to assure of functionality, turn off 
laser. No further adjustment is required. 
NOTE: Should calibration of the laser become necessary in
the future, Refer to “LASER CALIBRATION”. 
Calibration, Section 5.1, Pg. 9. 
Laser Battery Replacement
Unscrew back of laser and replace batteries with three (3), LR 44 
button batteries or equivalent. Reverse process for assembly. 
After battery replacement, CALIBRATION COULD BE REQUIRED.
 
 
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