Repair Manual

GENERAL
30
31 - 16
FRONT AXLE ANGLES
CAMBER ANGLE 1
0
30’ +/- 30’
It is formed by the wheel plane with the vertical that crosses the wheel axis.
A difference higher that 1°between the two camber angles (left side and right side) leads to:
- the deviation from the trajectory that must adjusted by means of the steering wheel;
- abnormal wear of the tires and bearings.
This angle results from building may not be adjusted.
THE CASTER ANGLE 4
0
+/- 1
0
This angle is formed in the vehicle longitudinal plane , by the axis of the attach-
ment point of the steering knuckle by means of the suspension ball joint and the ver-
tical that passes through the front wheel shaft.
A difference higher than 1° between the two angles (left side and right side) leads to:
- the deviation to the trajectory that must be adjusted by means of the steering wheel;
- irregular wear of the tires.
STEERING GEAR BOX POSITION
The steering gear box should be placed at a certain height from the attachment points of the
steering auxiliary connecting rod ball joints.
The position of the steering gear box influences the variation of the parallelism.
The steering box is mounted in the position for which the variation of the parallelism is
minimal.
The modification of the parallelism between left side and right side leads to:
- the deviation of the vehicle from trajectory in one sense upon accelerating;
- the deviation of motor car in the opposite side upon braking;
- the deviation of the trajectory on the hilly ground;
- the premature wear of the tires.
The horizontally of the steering box is ensured by the producer.
THE INFLUENCE OF ANGLES
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