Zetor CRYSTAL HD 150, Operator'S Manual

Page: 186 / 234

Checking the adjustment of the front grill headlights
C18N139
During a check on a test wall the tractor must stand on a level surface and the tyres must be inflated to the
prescribed pressure. The basic vertical setting is 3.5% at the shipping weight of the tractor.In the horizontal
direction the light beams must be parallel with the longitudinal axis of symmetry of the tractor.
Checking the dipped beam headlamps and adjusting them must only be carried out if the front
suspension axle is positioned vertically in the center position.
Recommended procedure:
Start the engine, switch the suspended front axle to
AUTO mode (see the section 'RUNNING OPERATION'),
wait until the front axle is set to the center position, turn off the engine.
Adjusting the front grill headlights
l - distance of the test wall from the headlight (5 m)
h - height of the headlight centre above the road surface
'
h
- headlight inclination (-3.5 %) to the distance of the test wall = 17.5
cm
D - raising of the outline of an asymmetrical headlight (15%)
The adjustment is performed simultaneously with all the
screws for the vertical and horizontal direction of the
beam. In the adjusted condition all the springs of non-
adjusting screws must be pre-tensioned. Each headlight is
adjusted separately. The lamps are replaced by removing
from the rear side of the reflector.
C18N140
ELECTRIC INSTALLATION
185