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k) Function control of servos
Steering servo
The steering servo is connected to channel 1 of the remote control transmitter, to the steering wheel.
Structure of steering
The steering of the vehicle is designed as an axle leg
steering.
At the same time the steering knuckle arms are connected
with the three-part steering link. The pivoting movement of
the servo control lever has an effect on the steering linkage
(1) and on one arm of the servo saver (2).
The servo saver consists of two right-angled levers, 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 (3) steers the centre
part of the steering link, the steering plate (4), and in this
way causes the wheels to turn via the steering link (5).
When hard shocks are carried in via the steering link 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 of the servo saver.
The effect of the servo saver can be adjusted with a knurled nut (6) by modifying the contact pressure on the two lever
arms. Turning right and left is limited by a mechanical stop of the steering knuckle arm against the axle leg support.
Function control
• Support the model at the front in a way that allows the wheels to hang freely.
• Due to the good traction of the wheels and the weight of the vehicle, the wheels would not follow your steering
commands spontaneously and directly while the wheels stand still on the floor. This however changes during
operation.
• First switch on the transmitter, then the receiver.
• Move the steering wheel (channel 1) towards the right and the left.
• Now the wheels must turn towards the right and the left!
• If the wheels turn in the opposite direction, switch the servo reverse on the remote control into the "REV" position
(reverse).
• Release the steering wheel; now the wheels must return to the straight position. If the wheels do not point exactly
forward when the steering wheel is in neutral position, correct the trimming on channel 1. Turing the steering wheel
all the way to the left or the right should also turn the wheels all the way to the left or right!
Servo saver
The servo saver has already been pre-adjusted. Before first use it has to be checked and might have to be
tightened (so that the control commands of the steering servo are carried out when driving quickly).
Throttle/brake servo
The throttle/brake servo is connected to channel 2 or the remote control transmitter.
1
2
3
4
5
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