6
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: Sighting unit must be calibrated to the optical head prior
to alignment of headlamps.
2.5
SIGHTING UNIT CALIBRATION
Calibration of sighting unit must be performed prior to alignment of
headlamps.
Raise optical head of
BCA 4
ISO
Color
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 customer satisfaction.
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.
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.
Optical
Head
IN
Calibration
OUT of
Calibration
Adjustment
Thumb Screws
Optical
Head
On / Off
Knob
Level Adjuster
Set Screw
Fixture
Placement Pin
ON/OFF
Knob
Summary of Contents for BCA4
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