53
b)
Configuring the wheel alignment
The wheel alignment (toe-in = figure A, toe-out = figure B) describes the
alignment of the wheel plane relative to the direction of travel.
When the vehicle moves, the tyres are pushed apart due to rolling resist-
ance. As a result, they are not parallel to the direction of travel.
To compensate for this, the tyres of the stationary vehicle can be adjusted
in a way so that they point slightly inwards.
This toe-in improves the lateral cornering of the tyre and therefore results
in a more direct response to steering commands.
To decrease the steering response, use toe-out (the wheels of the station-
ary vehicle will point outwards).
A toe angle of more than 3° toe-in (A) or toe-out (B) may cause steering difficulties and reduces the speed.
It also increases tyre wear.
The figure above shows a heavily over-emphasised setting. It is only used to show the difference between
toe-in and toe-out. If a similar setting is used for the vehicle, it will be very difficult to control!
Adjusting the wheel alignment of the front or rear axle:
Toe-in and toe-out can be adjusted by turning the steer-
ing arm (A). The steering arm has a left and right-handed
thread, therefore you do not need to remove it when mak-
ing adjustments.
Always turn both steering arms equally (for the left and
right wheels).
Maladjustment on the front axle can be corrected using
the steering trim.
Maladjustment on the rear axle leads to poor driving be-
haviour.
¦ ¦
A
B
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