Adjusting the road headlights
The headlights should be adjusted as follows:
• Mark out the screen as shown in Fig. 16. When doing this, mark the line of the centres
of the headlights А-А on the screen at the distance equal to the height of location of the
centres of the headlights above the ground level, and the lines B-B
1
and E-E
1
– at the
distance С (the distance between the centres of the headlights in the horizontal plane).
The distance should be measured immediately on the tractor. The air pressure in the
tyres shall correspond to the recommended norms;
• Place the tractor on a flat level area perpendicularly to the screen at the distance of
10 m from it to the lenses of the front headlights so that the longitudinal plane of
symmetry of the tractor would intersect the screen along the line O-O
1
;
• Switch on the lower beam and adjust firstly the position of one headlight (close another
headlight with a piece of dark cloth) and then – of another headlight having loosened
preliminarily their fasteners on the bracket.
Fig. 16. Marking up the screen and adjusting the front headlights
А-А – line of the centres of he headlights;
D-D – line located lower than the line А-А by 150 mm;
О-O
1
– symmetry line of the screen;
B-B
1
–vertical axis of the light spot of the left headlight;
Е-E
1
– vertical axis of the light spot of the right headlight.
The light of the headlights is considered to be adjusted, if the centre of the light spot on
the screen corresponds to that shown in the picture and the light spots from both
headlights are at equal height.
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