4
INSTALLING RAILS
Two sets of rails, each secured to the floor by screws
and plastic raw plugs. The rails are positioned at right
angles to the test vehicle’s line of travel. The two rails
must be level with each other, shimmed as necessary,
and re-checked after tightening down. In the final
position, the rails must be flat /- 2mm.
NOTE:
For heavy vehicles grout under rails (customers responsibility)
WORKING SURFACE
During positioning, the floor must be perfectly flat and level. It is inadvisable to check
headlights on an unleveled surface, as the test will not be precise.
CAR PREPARATION
Straighten the car wheels up. Check the tyre pressure. Ascertain the headlights are clean and
dry. Eliminate any obstruction that could alter the position of the vehicle: i.e. ice, snow, etc.
Switch the engine on. Proceed with the engine on. In case of vehicles with an automatic
dimmer, switch the engine on for 5 minutes before the test and proceed with the engine on.
OPTICAL POSITIONING
Put the HBT in front of one of the car lights, approximately 20-50 cm from the car.
Look through the visor and look for a horizontal part of the car, or two symmetrical points on
the car, for example the top part of the windshield or the bonnet.
Make sure that the visor lines match with these lines, so that the device is completely parallel
to the car.
If it is not, slightly turn the HBT, until the lines match.
Measure the height from the floor to the centre of the light and
put the optical box at the corresponding height, using the scale
shown.
You must use as a point of reference, the top of part VSS (e.g. if the
height from the floor is 80cm, put the VSS at the 80cm mark) There
is an allowance of +/- 3cm.
The HBT is equipped with a rotating column and brake that allows
the device to be easily rotated and locked in the desired position.
The brake is operated by pressing the pedal.