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b) Setting the Alignment
Wheel alignment (toe-in = figure „A", toe-out = figure „B") describes the
relation of the wheel level to the driving direction.
While driving, the tyres are pushed apart in the front because of the
rolling friction. This is why they are no longer precisely parallel to the
driving direction. To compensate, the tyres of the stationary vehicle can
be adjusted so that they point slightly inwards. This toe-in improves
lateral cornering of the tyres and leads to a more direct response to
steering.
If a milder response to steering is desired, this can be achieved
accordingly by adjusting a toe-out, i.e. the wheels of the stationary
vehicle point outward. An alignment angle of 0° on the front axle ensures
the best driveability on almost any ground.
An alignment angle of more than 3° toe-in (a) or toe-out (b) will lead to handling problems and decreased
speed. It will also increase tyre wear.
The figure above shows a strongly over-emphasised setting. It is only used for showing the difference between
toe-in and toe-out. If such a setting is used for the vehicle, it will be very difficult to control!
The wheel alignment setting for the rear axle is pre-determined by the manufacturer and cannot be changed.
For the front axle, toe-in and toe-out can be set by
turning the adjustment screw (A) of the track rod.
Because the adjustment screw has a left and right hand
thread at either end, it does not need to be dismantled
to be adjusted.
Turn both adjustment screws evenly (left and
right front wheel). Otherwise, you need to
adjust the trim of the transmitter or even
change the steering servo control (e.g. adjust
servo rod).
Other attachment points possibly present in linkage
levers (B) and axle stubs (C) for the track rod serve to
set the Ackermann angle (the wheel on the inside of
the curve must deflect farther than that at the outside).
This correct setting was already made in the factory
and should not be changed.
A
C
B
A
B
¦ ¦
47

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