User manual

58
b) Performing a Function Inspection of the Steering
• 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 steer-
ingcommandsspontaneouslyanddirectlywhilestillontheoor.Thischangesduringoperation.
• Firstswitchonthetransmitter,thenthereceiverpowersupply.
• Movethesteeringwheelatthetransmittertotheleftandright.
• Thewheelsmustdeecttotheleftandright(inthesamedirectioninwhichyouturnthesteeringwheel).
If the wheels move in the opposite direction, switch the reverse function for the steering into the respective other
position and check the starting function again.
• Releasethesteeringwheel(neutralposition);nowthewheelsmustreturntothestraightposition.Ifthewheelsdo
not stop straight in the neutral position of the steering wheel, correct this with the trim function of the steering at your
transmitter. The steering wheel end stops left/right should lead to left/right end stops of the steering.
Observe:
The precise alignment of the steering for straight driving is performed later during driving, using the trim
functionatthetransmitter.Therefore,itisnorequiredthatyoualignthewheels100%whilestanding.
c) Function of Linkage of Carburettor and Brake
The throttle/brake servo is connected to channel 2 of
thereceiverandismovedbymovingthengergrip
at the transmitter.
The special placement of the throttle/brake linkage
leads to two functions being carried out at the same
time via two servo steering levers that are offset by
90°.
By moving the carburettor slide (B), the air supply to
the engine is controlled through the throttle linkage
(A).
Atthesametime,theidlingnozzleneedle(conical
needle of a needle valve) is moved to change the fuel
amountowingthroughthecarburettor.
If the throttle linkage is pushed beyond the idle posi-
tion (mechanic end stop of the carburettor slider), the
servo arm pushes against a spring stop.
Now the sphere of action of the brake linkage (C)
comes into effect; it pushes the brake shoes of the
disk brakes together via an eccentric tappet.
Figure 5
A
B
C