Traxxas 69077-4 Owner's Manual page 23

vehicle and disassembled to change/replace oil. Follow the steps below
to access and refill the differential. Refer to the exploded views in the
included Service and Support Guide for reference. The required tools
are included with your model:
1. Remove the right wheel and left wheel using the 7mm socket on
the 4-way wrench.
2. Remove the wheel hex and hex pin from both sides.
3. Remove the four screws on the right side spur gear cover using the
2mm "T" wrench.
4. Pull the differential assembly out (this includes the internal
differential housing and two driveshafts).
5. Remove the four screws from the left-hand side of the internal
differential housing using the 2mm "T" wrench.
6. Once all four screws are removed, pull the two differential housing
halves apart. Be sure to keep the gasket seal for the
two halves.
7. Clean out existing differential fluid.
8. Fill the right side of the differential housing with the new fluid.
9. Install the gasket, making sure it is free of any dirt or debris.
10. Install the left side of the housing and make sure all gears are
meshed and driveshafts are rotating properly.
11. Install four screws through the left side and tighten using
the 2mm "T" wrench.
12. Re-install the differential housing and two driveshafts, ensuring the
internal and external bearings are seated properly.
13. Re-install the right side cover, drive hex pins, drive hexes,
and wheels.
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 towards 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 25).
5. Turn the transmitter's steering trim knob to the center
"0" position.
6. Disconnect the black and white motor wires to prevent the motor
from turning during the next steps. Connect a fresh battery pack to
the speed control. 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.
If you have questions or need technical assistance, call Traxxas at
1-888-TRAXXAS
(1-888-872-9927) (U.S. residents only)
TUNING ADJUSTMENTS
TRAXXAS • 23