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To achieve a good starting
point for the slipper clutch
in this model, remove the
slipper gear assembly from
your model (see page 25 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.
24 • SLASH 4x4
BASIC TUNING ADJUSTMENTS
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 or 5 on the suspension arms.
3. Add a 4mm preload spacer to the front shock.
4. Position 1 is not recommended for front or rear.
Fine Tuning the Shocks
The four shocks on the model greatly influence its handling.
Whenever you rebuild your shocks, or make any changes to the
pistons, springs, or oil, always make
changes to them in pairs (front or rear).
Piston selection depends on the range of
oil viscosities that you have available. For
example, using a two-hole piston with a
lightweight oil will, at one point, give you
the same damping as a three-hole piston
with heavier oil.
We recommend using the two-hole pistons
with a range of oil viscosities from 10W
to 50W (available from your hobby shop).
The thinner viscosity oils (30W or less) flow
more smoothly and are more consistent,
while thicker oils provide more damping.
Use only 100% pure silicone shock oil to
prolong seal life. From the factory, shock oil
is set to 50W in the front shocks and 40W in
the rear shocks.
The model's ride height can be adjusted by adding or removing the
clip-on, spring preload spacers. Adjust the ride height so that the
suspension arms are slightly above being parallel to the ground.
Observe how the model handles in turns. Proper setup will add
stability and help prevent spin outs. Experiment with different
springs and shock oils to find what works best for your current track
conditions.
If you have questions or need technical assistance, call Traxxas at
1-888-TRAXXAS
(1-888-872-9927) (U.S. residents only)
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 17).
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.
Preload
8. Check servo operation by turning the steering wheel back and
Spacer
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 25 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.)
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