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9. Technical Informations
a) Steering Function
The steering servo is connected to channel 1 of the receiver and
is moved by turning the steering wheel at the transmitter.
The steering of the vehicle is designed as an axle leg steering.
The pivoting movement of the servo control lever (A) has an
effect on the steering linkage (B) and on one arm of the servo
saver (C).
The servo saver consists of two right-angled levers (C and D),
which are not rigidly coupled but can be moved against each
other via a spring in one level with the steering linkage.
The second lever arm of the servo saver (D) moves the middle
part of the track rod, the steering plate (E).
It leas to a movement of the track rod (F), which causes a stee-
ring deflection of the wheels.
When hard impacts are transmitted through the track rod during
operation, they are not immediately transmitted to the steering
servo, but are absorbed with the help of the resilient connection
of the two lever arms (C and D) of the servo saver.
The effect of the servo saver can be adjusted with a knurled nut
(G) by modifying the contact pressure on the two lever arms.
If the setting is too tight, the servo saver is useless. Impacts on
the steering are forwarded to the servo undampened and may
destroy the servo gear. Too weak a setting has negative effects
on driving behaviour, since, e.g., even small potholes will stron-
gly change the steering angle. The vehicle can barely be driven
straight ahead here.
Turning left and right is limited by a mechanical stop of the steering knuckle arm against the axle leg support.
If the transmitter used permits the servo path to the left and right should be limited accordingly so that the steering
servo does not run to block („running to block“ means that the servo tries to turn the servo arm further even though it
is already being blocked by the steering mechanics. This leads to an unnecessarily high current intake of the steering
servo as well as to overload and damage to the servo gear).
B
A
C
F
D
E
G
F
F
E
G
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