Traxxas 74076-1 - Manual (Page 20)

20 • TRAXXAS RALLY
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-degrees toe-in). This will ensure the same
amount of steering in both directions.
For increased stability add one- to two-degrees of toe in to each
front wheel. Use the turnbuckles to adjust the alignment.
Adjusting the Camber
The camber angle of both the front and rear wheels can be adjusted
with the camber links (upper turnbuckles). Use a square or right-
angle triangle to set the camber accurately. Adjust the front wheels
to 1 to 2 degrees of negative camber. In the rear, adjust the wheels
to 1 to 2 degrees of negative camber. These adjustments should be
set with the model positioned at its normal ride height.
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 on-road
performance. Refer to the Setup Sheets at the end of this manual
for on-road and off-road settings.
BASIC TUNING ADJUSTMENTS
Camber
Toe-in
1°-2° 1°-2°
1°-2° 1°-2°
All of the toe links are
installed on the model so the
left hand thread indicators
point to the same direction.
This makes it easier to
remember which way to
turn the wrench to increase
or decrease toe link length
(the direction is same at all
four corners). Note that the
groove in the hex indicates
the side of the toe link with
the left-hand threads.
Rear toe-in can be adjusted
using accessory rear axle
carriers, Traxxas Part #1952X.
These can add or remove 1.5°
toe per side, for a total of 1 to
4 degrees per side.
Toe Base Factory Settings
Front: 0-degrees
Rear: 2.5-degree toe-in each side
Static Camber Base Factory Settings
Front: 1-degree negative camber each side
Rear: 1-degree negative camber each side
Strip of
Paper
Motor
Screw