Tyre Rotation; Headlamps; Head Lamp Adjustment - TATA Motors Sumo Gold CR-4 Owner's Manual & Service Book

WHEELS & TYRES AND ELECTRICAL SYSTEM

Tyre rotation

Tyre rotation is recommended for achieving identical wear
on each tyre. It is also advisable to change rotating direction
to relieve tyres of continual one way rotation. Regular
rotation of tyres also will prevent abnormal wear. The sketch
indicates a suggested sequence of tyre rotation. Rotate
tyres first at 12,000 km. then at every 8,000 km. or earlier
depending on operation.

Headlamps

The head lamp provides two types of light beams; a high
beam to give maximum light well ahead of vehicle, and a
low beam which is shorter and lower so that it will not dazzle
the oncoming drivers and can be use in low visibility area.
The head lamp also incorporates a parking lights.
The head lamps must be properly aligned in order to obtain
maximum road safety, proper road illumination and reduced
glare to oncoming traffic.
It is recommended to check alignment of headlamp beams
periodically and whenever headlamp bulbs are replaced,
by means of a headlamp aligner or with the help of a screen
as shown in figure on the following page.
Adjusting head lamps focus with the help of screen
The vehicle should be parked 10 meters away from screen
with its centre in line with central vertical line on screen,
and screen at right angle 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 the marked up screen as shown in figure, area above
horizontal and inclined lines (shaded) is called 'Dark zone'
and the area below it is called 'The illuminated zone'.
VEHICLE MAINTENANCE
85