10
PREPARATION
ASSEMBLING THE MIRROR VISOR
The mirror visor is calibrated with the respective device
during the testing phase and cannot consequently be
used with other headlight beam testers.
Place the visor beside the plate so that the attachment
holes and external rims coincide; screw on using the
two screws provided.
Do not mount the mirror in a rotated position
(protruding from the joint block) it would be in an
incorrect position.
PREPARATION OF THE VEHICLE
Make sure that the headlights are clean and dry. If the vehicle has its own headlight adjuster inside
the vehicle, position this to “0”. Remove anything which might affect the correct attitude of the
vehicle: mud, snow, ice etc. Straighten up the wheels of the vehicle. Make sure that the vehicle
has no distortion of the body. Check that the tyre pressure is correct. Turn on the engine and
perform the test. In the case of vehicles with pneumatic suspensions turn on the engine five
minutes before starting the test and continue with the engine on.
WARNING!
When working in enclosed areas with the engine on, an extraction system of the noxious fumes
produced is required. Use of a specific exhaust fume extraction system is recommended.
WORK SURFACE
During testing of the headlights the floor surface
should be flat. If this is not possible the headlight beam
tester and the vehicle should, at least, be positioned on
a surface with an even difference in level and in any
case with an incline of not more than 0.5%. The testing
of headlights on surfaces which are not perfectly
regular or flat is not recommended inasmuch as the
adjustment of the same may not be correct.