SAFARI

ELECTRICALS

Fig. 15 Head Lamp

Head Lamps :

The Head Lamp provides two types of light beams - a

high beam to givemax. light well ahead of vehicle and a

lowbeamwhich is shorter and lower so that it shouldnot

dazzle the oncoming drivers and can be used in low

visibility area. Head lamp also has parking lamp

The head lamps must be properly aligned in order to

obtainmax., proper road illumination and reduced glare

for oncoming traffic. It is recommended to check

alignment of head lamp beams periodically.

Adjusting Head Lamp Focus with the Help of Screen

(RHD)

The vehicle should be parked tenmeters away from the

screen on flat ground with its centre in-line with central

vertical line on screen and screen at right angles to

longitudinal axis of the vehicle.The vehicle should be in

unloaded condition with no sag in suspension springs

and all tyres equally inflated.

On themarked up screen as shown in Fig. 16, area above

horizontal and inclined lines (shaded) is called‘Dark Zone’

and the area below is called as the Illuminated Zone.

Each head lamp is aligned individually by masking the

other head lamp. Head lamp is first adjusted for proper

height of lowbeamby adjusting screw (Fig. 16) at its top.

The rubber grommet fitted on cab above head lamp is

required to be unscrewed and removed for accessing

the head lamp adjusting screw. Light from low beam

should fall below horizontal and inclined lines. No light

should fall above these lines

i.e.in

Dark Zone.Thereafter

lateral adjustment is done by adjusting screw (H) at the

bottom of head lamp so that contour of low beam

coincideswith contour formedby horizontal and inclined

lines below“Dark Zone”.

When properly adjusted, most brightly illuminated area

will be just below the inter section point ‘A’of these two

lines.

Now switch ‘ON’ high beam. They will be symmetrical

above points ‘A’ & ‘B’ of intersection of vertical lines and

horizontal lines.

It is possible that high beam may not be exactly

symmetrical but for this reason head lamp should not be

realigned. Preferably alignment should be done in dark.

Note :

While adjusting head lamps with levelling switch,

keep the levelling switch at ‘0’ position.