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Mounting the steering
The steering of "Rex-X" is designed as axle leg steering.
At the same time, the steering knuckle arms are connected with a three-part steering link. The pivoting movement of the
servo control lever has an impact on the steering linkage and on
one arm of the servo saver.
The servo saver consists of two right-angled levers, which can
be moved against each other against a spring in one level with
the servo steering lever. The second lever arm of the servo saver
steers the center part of the steering link, hence causing the
wheels to turn. (an impact on the wheels has a reverse effect via
the steering knuckle arm on the steering link and the second arm
of the servo saver, prevents the flexible connection to the first
lever arm of the servo saver, that this impact is immediately gui-
ded into the servo, thus damaging the latter.)
Turning right and left is limited by a mechanical stop of the stee-
ring knuckle arm against the axle leg support.
Steering servo and throttle/brake servo can be mounted in a less complicated way if you remove the RC
mounting plate. To that effect, unscrew the five metal screws on the distance pieces and three plastic
screws on the brake supports and on the battery box. The latter can be lifted-off along with the mounting
plate.
Mounting the steering servos
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Set the wheels in "straightforward" direction'
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Place the servo shaft in neutral position with the help of the remote control transmit-
ter,
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Place the steering servo (servo shaft towards the front!) in the front section of the RC
mounting plate and screw together the
steering servo with the plastic counter-pieces from the servo mounting set
(underneath the RC mounting plate).
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Place the lever of the steering servo on the servo shaft in a way that
allows you to establish a connection as straight as possible via the stee-
ring link with the arm of the servo saver without modifying the position of
the wheels.
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Screw the ball-shaped head with the ball screw on the arm of the servo
saver.
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The other side of the steering link is screwed from underneath with the
lever of the steering servo (or later, after mounting the throttle/brake servos
and the reassembly of the RC mounting plate).
The set with the fastening elements for both servos includes, in addition, a sup-
port for the guiding tube of the aerial (X), which is not needed!
At a later point, the wire of the aerial is guided though the opening in the cover of the receiver
box and fastened with the guiding tube.
M
OUNTING THE THROTTLE
Mode of action and setting the throttle/brake linkage
With the throttle/brake linkage, two functions are carried out at the same time via two servo steering levers that are at 90°
to each other.
Sliding the "carburetor slide" via the throttle linkage, regulates the air supply to the engine.
At the same time, the idle nozzle needle (conical needle of a needle valve) is moved, thus changing the amount of fuel that
flows through the carburetor.
If the throttle linkage is moved further than the idle position (mechanical limit stop of the carburetor slide), the servo lever
pushes against a spring buffer.
Now the sphere of action of the brake linkage comes to effect, it presses the brake shoes of the disk brake together via an
eccentric tappet.
The position of the adjustment rings (the mechanical limit stops) of the stop spring on the throttle linkage
and on the brake linkage must be adjusted to the mechanical limit stops of the carburetor and the disk bra-
kes.
© REELY 09/07
All manuals and user guides at all-guides.com
P
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BRAKE SERVO AND THE THROTTLE
/
BRAKE LINKAGES
X
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