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Using the TQ Radio System
The TQ Radio System was pre-adjusted at the factory. The adjustment
should be checked before running the model, in case of movement
during shipping. Here’s how:
1. Fully extend the chrome antenna mast on the transmitter and turn
the switch on. The red indicator light on the transmitter should be
solid red (not flashing).
2. Turn on the receiver switch in the model. The switch is located on the
rear shock tower.
3. Position the Nitro 4-Tec so that its front wheels are off the ground.
4. Turn the steering wheel on the transmitter back and forth and check
for rapid operation of the steering servo. Also, check that the steering
mechanism is not loose or binding. If the steering operates slowly,
check for weak receiver batteries.
5. When looking down at model, the front wheels should be pointing
straight ahead. If the wheels are turned slightly to the left or right,
slowly adjust the steering trim control on the transmitter until they
are pointing straight ahead.
6. Operate the throttle trigger on the transmitter and check for rapid
operation of the throttle servo. When the throttle trigger is pulled
back, the carburetor should open. When the throttle trigger is
pushed all the way forward, the brake should lock.
7. Once adjustments are made, turn off the receiver on your Nitro 4-Tec,
followed by the hand-held transmitter.
Range-Testing the TQ Radio System
Before each running session with your Nitro 4-Tec, you should range-test
your radio system to ensure that it operates properly.
1. Turn on the radio system and check its operation as described in the
previous section (Using the TQ Radio System).
2. Have a friend hold the model with the engine off.
3. Make sure your transmitter antenna is fully extended, and then walk
away from the model with the transmitter until you reach the farthest
distance you plan to operate the model.
4. Operate the controls on the transmitter once again to be sure that
the model responds correctly.
5. Do not attempt to operate the model if there is any problem with the
radio system or any external interference with your radio signal at
your location.
16
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Nitro 4-Tec 3.3
The Traxxas TQ Radio System
0°
-1°
-2°
TO
0°
When the engine is running,
do not use the throttle trim
on the transmitter to adjust
the engine idle speed.
Always use the idle speed
adjustment screw (see page
18) on the carburetor.
Don’t attempt to operate
your Nitro 4-Tec 3.3 if
there are any problems
with your radio system
or radio interference at
your location.
Brake
Throttle/Brake
Servo
Throttle
Steering
Servo
Nitro 4-Tec
Servo Operation