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24 • TRAXXAS
ADJUSTING YOUR MODEL
Once you become familiar with driving your model, you might need
to make adjustments for better driving performance
Adjusting Gear Mesh
Incorrect gear mesh is the most
common cause of stripped spur
gears. Gear mesh should be
checked and adjusted anytime a
gear is replaced. Access the gears
by removing the single screw on
the gear cover.
To set the gear mesh, loosen the
motor screw. Cut a narrow strip
of notebook paper and run it into
the gear mesh. Slide the motor
and pinion gear into the spur gear.
Retighten the motor screws and
then remove the strip of paper. You
should be able to run a fresh strip of
paper through the gears without binding them.
Adjusting the Toe-in
Geometry and alignment specs play an important roll in your
model's handling. Take the time to set them correctly. Set the
steering trim on your transmitter to neutral. Now, adjust your servo
and tie rods so that both wheels are pointing straight ahead and are
parallel to each other (0° toe-in). This will ensure the same amount
of steering in both directions. For increased stability, add 1°-2° of toe
in to each front wheel. Use the turnbuckles to adjust the alignment.
1°-2°
Toe-in
Toe Base Factory Settings
Front: 0-degrees
Rear: 2.5-degree toe-in each side
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.
Strip of
The suspension of your model has been set up for on-road
Paper
performance.
Motor
Screw
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,
1°-2°
while thicker oils provide more damping. Use
only 100% pure silicone shock oil to prolong seal life. The model's
ride height can be adjusted by adding or removing the clip-on,
spring pre-load 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 set-up 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.
Pre-load
Spacer
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