Traxxas RUSTLER 4x4 ULTIMATE Owner's Manual page 25

SHOCK MOUNTING POSITIONS
Big bumps and rough terrain
require a softer suspension
with the maximum possible
suspension travel and
ride height. Racing on a
prepared track or on-road
use requires a lower ride
height and firmer, more
progressive suspension
settings. The more
progressive suspension
settings help reduce body
roll (increased roll stiffness),
dive during braking, and squat during acceleration.
The suspension of your model has been set up for off-road
performance (position 2 on the front suspension arms and position
3 on the rear suspension arms). If you plan on driving on hard
surfaces, the following changes should be made:
1. Move the front shocks to position 3 on the suspension arms.
2. Move the rear shocks to position 4 on the suspension arms.
3. Add additional preload spacers.
4. Position 1 is not recommended for front or rear.
Experiment with different springs and shock oils to find what works
best for your current track conditions.
BASIC TUNING ADJUSTMENTS
CENTERING YOUR SERVO
If you have removed the servo horn from your model's steering servo,
or the servo has been removed for service or cleaning, the servo must
be re-centered prior to installation of the servo horn or installation of
the servo in the model.
1. Remove the servo horn from the steering servo.
2. Connect the steering servo to channel 1 on the receiver. Connect
the electronic speed control (ESC) to channel 2. The white wire on
the servo lead is positioned toward the receiver's LED.
3. Turn the transmitter power switch on. Make certain the
transmitter's batteries are not depleted.
4. Turn off TSM (see page 16).
5. Turn the transmitter's steering trim knob to the center "0" position.
6. Disconnect motor wires "A" and "C" (see page 12) to prevent the
motor from turning during the next steps. Connect a fresh battery
pack to the speed control and turn on the ESC (see page 18). The
servo's output shaft will automatically jump to its center position.
7. Install the servo horn onto the servo output shaft. The servo horn
should face toward the center of the chassis and be perpendicular
to the servo body.
8. Check servo operation by turning the steering wheel back and
forth to ensure that the mechanism has been centered properly
and you have equal throw in both directions. Use the transmitter's
steering trim knob to fine-tune the position of the servo horn so
the model tracks straight when the steering wheel is at neutral.
ADJUSTING THE SLIPPER CLUTCH
The model is equipped with an adjustable slipper clutch, which is
built into the large spur gear. The purpose of the slipper clutch is to
regulate the amount of power sent to the wheels to prevent tire spin.
When it slips, the slipper clutch makes a high-pitch, whining noise. To
adjust the slipper, remove the slipper gear assembly from your model
(see page 26 for instructions), and turn the adjusting nut clockwise to
tighten or counterclockwise to loosen. Adjust the slipper so that you
can hear it slip for a moment from a standing, full throttle start. (Learn
more about adjusting the slipper clutch in the sidebar.)
To achieve a good starting
point for the slipper clutch
in this model, remove the
slipper gear assembly from
your model (see page 26 for
instructions) and tighten the
slipper clutch adjusting nut
clockwise until the slipper
clutch adjusting spring fully
collapses (do not over tighten),
and then turn the slipper
clutch nut counterclockwise
one full turn.
Do not run your model with
the slipper clutch adjusting
spring fully compressed. The
minimum recommended
slipper clutch setting is 1/2
turn counterclockwise from
fully compressed.
RUSTLER 4X4 ULTIMATE • 25