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3.3 Vehicle longitudinal axis positioning with mirror
1- Move forward the headlight tester in front
of the centre of the vehicle so that the
headlight tester lens is within 20 and 50 cm
from each headlamp (optimal distance being
35cm).
2- Identify on the vehicle 2 fixed marks,
symetrically spread out with regard to its
central axis (examples : right and left upper
windscreen angles, non distorted engine
bonnet angles, windscreen washer jets if
their support is not distorted).
3- Make the optical head swivel so that the
mirror line match with the marks identified on
the vehicle.
4- You can start with the control or
adjustment procedure. During this phase you
will move the headlight tester in front of the
headlamp to be controlled or adjusted while
keeping the angular positioning carried out
with the laser.
30/06/16
Rev A
8
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