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 balance this, the tyres of the stationary vehicle can
be adjusted so that they point slightly inwards. This toe-in improves the
lateral cornering of the tyres and thus a more direct response to the
steering.
If a milder response to steering is desired, this can be achieved accord-
ingly 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 that 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 adjust-
ment screw (A).
Because the adjustment screw has a left and right hand thread at
either end, it does not need to be dismantled to be adjusted
Always turn the adjustment screws for the left and right
front wheels evenly. Otherwise, you need to adjust the
trim of the transmitter or even change the steering servo
control (e.g. adjust servo rod).
We recommend setting a slight toe-in. Do not use toe-out.
Different fastening points at the axle spur make it possible to change
the so-called Ackermann angle (the wheel on the inside of a bend has
a smaller steering radius than the outer one when steering).
70
a
A
B
b
¦ ¦