
Upper adjustment screw = lateral adjustment
Lower adjustment screw = vertical adjustment
Headlight adjustment
Adjusting screws
Your Porsche is fitted with a headlight beam
adjustment device inside the vehicle, so that
optimum headlight illumination can be
obtained irrespective of the loading of the
vehicle, and without dazzling oncoming dri-
vers.
The basic adjustment of the headlights can
only be performed on a special machine.
This should be carried out on the vehicle in a
ready to drive condition, and a full fuel tank.
The driver's seat must be loaded with a 75 kg
weight, or with a person, and the tires must
be inflated to the manufacturers specifi-
cations. With the vehicle in this condition, it
must be rolled several meters to allow the
road springs to settle, before starting to
adjust the lights.
The adjuster knob for the interior headlight
setting must be in the neutral position, i.e.
the white mark on the knob directly over the
mark "O" on the rosette (see headlight
beam regulator). To adjust the headlights,
the screws must be removed from the head-
light housings, and the housings removed.
Each headlight has two adjusting screws,
one for lateral setting, and one for vertical.
By turning these screws left or right, the cor-
responding adjustment in beam position is
effected.
Adjustment of auxiliary driving lamps
The auxiliary driving lamps are adjusted
such, that the centre of the light beam is the
same height as the centre of the lamp.
82
Summary of Contents for 928S 1983
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