User manual

X-MAXX
•
23
Centering Your Servo
If you have removed the servo horn from your X-Maxx’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.
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 both the blue and white motor connectors (see page
11) 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 17). The servo’s output shaft will automatically jump
to its center position.
7. Install the servo horn onto the servo
output shaft. With the servo laying
down flat, the servo horn should be
installed vertically so that it is in the
centered position.
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.
Fine Tuning the Shocks
The four GTX shocks greatly influence handling. Periodic
maintenance may be required to maintain optimal performance.
You can also tune your shocks to your driving style or running
environment. Whenever you rebuild shocks, or make any changes
to the pistons, springs, or oil, always make changes to the shocks in
pairs (front or rear).
To disassemble the GTX shocks:
1. Remove the 2.5x14mm cap screw from the lower spring retainer.
Remove the lower spring retainer and shock spring.
2. Remove the cartridge/
shock shaft/piston
assembly from the
shock body.
3. Remove the M4 locknut,
piston, 4x8mm washer,
and the existing
cartridge assembly from
the shock shaft.
4. Assemble the new
cartridge on the
shock shaft.
Note: The new cartridge
must be assembled on
the shock shaft. DO NOT
attempt to assemble the
cartridge separately and
slide it onto the shaft. This
may damage the shaft
O-ring and cause a leak.
5. Reassemble in reverse order. Be sure to fill the shocks with 100%
pure silicone shock oil to help prolong the life of the seals. From
the factory, the GTX shocks are filled with 30W shock oil. When
adding shock fluid, be sure to allow any air bubbles to escape.
You can tune your shocks by using thicker or thinner viscosity shock
oil, as well as changing the piston that moves through the fluid
inside the shock.
Ride height can be adjusted by using the threaded spring retainer.
Adjust the ride height so that the suspension arms are just slightly
above being parallel to the ground. Observe how X-Maxx handles
in turns. Proper setup will add stability and help prevent spinouts.
Experiment with different shock oils and ride heights to find what
works best for your driving style and conditions.
BASIC TUNING ADJUSTMENTS