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NITRO 4-TEC 3.3 • 13

Steering Sensitivity (Exponential)

The Multi-Function knob on the TQi transmitter has been 
programmed to control Steering Sensitivity (also known as 
exponential). The standard setting for Steering Sensitivity is 
“normal (zero exponential),” with the dial full left in its range of 
travel. This setting provides linear servo response: the steering 
servo’s movement will correspond exactly with the input from 
the transmitter’s steering wheel. Turning the knob clockwise from 
center will result in “negative exponential” and decrease steering 
sensitivity by making the servo less responsive near neutral, with 
increasing sensitivity as the servo nears the limits of its travel range. 
The farther you turn the knob, the more pronounced the change 
in steering servo movement will be. The term “exponential” comes 
from this effect; the servo’s travel changes exponentially relative 
to the input from the steering wheel. The exponential effect is 
indicated as a percentage—the greater the percentage, the greater 
the effect. The illustrations below show how this works. 

Normal Steering Sensitivity (0% exponential)

In this illustration, the steering servo’s travel (and with it,  
the steering motion of the model’s front wheels) corresponds 
precisely with the steering wheel. The ranges are exaggerated for 
illustrative purposes.

Decreased Steering Sensitivity (Negative Exponential)

By turning the Multi-Function knob clockwise, the steering 
sensitivity of the model will be decreased. Note that a relatively 
large amount of steering wheel travel results in a smaller amount of 
servo travel. The farther you turn the knob, the more pronounced 
the effect becomes. Decreased steering sensitivity may be helpful 
when driving on low-traction surfaces, when driving at high speed, 

or on tracks that favor sweeping turns where gentle steering inputs 
are required. The ranges are exaggerated for illustrative purposes.

Experiment! Try varying degrees of exponential. It’s easy to go  
back to “zero” if you don’t like the effect. There’s no wrong way to 
adjust exponential. Any setting that makes you more comfortable with 
your car’s handling is the “right setting.” 

SETTING UP THE ANTENNA

The receiver antenna has been set up 
and installed from the factory. 

When installing the antenna, first slide 
the antenna wire into the bottom of 
the antenna tube until the white tip of 
the antenna is at the top of the tube 
under the black cap. Insert the base of 
the tube into the antenna post. Take 
care not to crimp the antenna wire. 
Slide the crimp nut over the antenna 
tube and screw it onto the antenna 
post. Use the supplied tool to tighten 
the crimp nut on the post just until the 
antenna tube is securely in place. Do 
not overtighten or crush the antenna 
wire against the chassis. 

Do not bend or 

kink the antenna wire! See the sidebar 
for more information. Do not shorten the 
antenna tube.

Turning Range  

at Transmitter

Effective Turning 

Range on Model

To prevent loss of radio range 
do not kink or cut the black wire, 
do not bend or cut the metal tip, 
and do not bend or cut the white 
wire at the end of the metal tip.

Correct

No

No

No

Antenna 

Tip

Antenna 

Tube

Antenna 

Mount

Antenna 

Nut

Antenna 

Nut Wrench

TRAXXAS TQ

i

 RADIO SYSTEM

Содержание Nitro 4-Tec 3.3 48077

Страница 1: ...MODEL 48077 owner s manual...

Страница 2: ...d fashioned procedures could reduce engine performance and longevity 3 4 5 6 7 8 14 29 30 33 35 BEFORE YOU PROCEED SAFETY PRECAUTIONS TOOLS SUPPLIES AND REQUIRED EQUIPMENT ANATOMY OF THE NITRO 4 TEC Q...

Страница 3: ...axxas by phone or online at BuyTraxxas com You can save time along with shipping and handling costs by purchasing replacement parts from your local dealer Do not hesitate to contact us with any of you...

Страница 4: ...ll fuel out of the reach of children at all times Do not place fuel containers on the ground where children can reach them while you are driving Model engine fuel is flammable Never allow smoking spar...

Страница 5: ...dle nose pliers Philips screwdriver Soldering iron For more information on radio system batteries see Use the Right Batteries on page 10 Glow plug wrench Extra glow plug 1 5mm L wrench 2 0mm T wrench...

Страница 6: ...iver Bearing Block Air Filter Pipe Header TRX 3 3 Racing Engine see pg 15 for details Pressure Line Fuel Line EZ Start Motor EZ Start Plug Shock Tower Body Mount Chassis lower On Off Switch Antenna Mo...

Страница 7: ...engine See page 24 Install the body mounts and foam bumper Learn to use the correct starting procedure for your TRX 3 3 5 Install batteries in the transmitter See page 10 13 Break in your engine See...

Страница 8: ...hobby pack NiCad batteries have very high current handling high capacity and can last up to 1000 charging cycles Good charging procedures are required to reduce the possibility of developing a memory...

Страница 9: ...channels for controlling your throttle and steering The receiver inside the model has 5 output channels Your model is equipped with two servos and a receiver Nitro 4 Tec Wiring Diagram Channel 1 CH1...

Страница 10: ...on over the battery holder to prevent fuel contamination 4 Install the battery holder into the car and secure it to the top plate with the reusable zip tie Make sure the battery holder is secure in th...

Страница 11: ...ble 50 50 Allows equal travel for both acceleration and reverse 70 30 Allows more throttle travel 70 and less reverse travel 30 50 50 is the required setting for the Nitro 4 Tec 3 3 with TRX 3 3 Racin...

Страница 12: ...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 Higher Speeds Require Greater Distance The fast...

Страница 13: ...large amount of steering wheel travel results in a smaller amount of servo travel The farther you turn the knob the more pronounced the effect becomes Decreased steering sensitivity may be helpful wh...

Страница 14: ...premature engine wear and failure is lack of care and maintenance BREAK IN The TRX 3 3 Racing Engine is manufactured to exacting tolerances and requires a specially designed break in procedure to acc...

Страница 15: ...rive Unit EZ Start Motor Engine Mount Low Speed Needle Throttle Arm Clutch Bell Flywheel Carburetor Air Intake Fuel Intake High Speed Needle Idle Speed Screw EZ Start Plug Positive Wire Negative Wire...

Страница 16: ...he engine s body that contains all of the running mechanical components Crankshaft The main shaft of the engine that holds the reciprocating assembly Cooling fins The cooling fins are milled into the...

Страница 17: ...the first level of air filtration for the engine The majority of dirt and debris will be stopped by this filter Clean re oil and replace this filter after every hour of run time Always use both the p...

Страница 18: ...ical limitations Engines are designed to run best within a range of nitro percentages How the engine is ported the size of the combustion chamber and other factors determine how much nitro can be effi...

Страница 19: ...gine will be damaged Engine damage or wear due to dirt ingestion is easy to detect and one of the top causes of premature engine failure Air Filter Cleaning Instructions 1 Remove the air filter from t...

Страница 20: ...r fuel ratio Warmer air is less dense fewer air molecules and therefore needs less fuel to maintain the correct air fuel ratio The tuning needles are there to adjust how much fuel is made available fo...

Страница 21: ...ctory settings until after the engine is started and running and you have been able to observe the engine running to assess what minor adjustments may be required to compensate for fuel temperature an...

Страница 22: ...tery in place when the battery is installed in the compartment C 4 Install the battery into the compartment and press the wires securely into place 5 Snap the battery compartment door back on and lock...

Страница 23: ...the piston and the top of the sleeve This is a tapered fit and a tight piston sleeve fit on initial startup is desirable for those who want the best performing engine Make sure you are using a good q...

Страница 24: ...xas glow plugs handy The break in process can cause deposits to form on the plug leading to plug failure Follow the instructions exactly for each of the first 5 tanks of fuel Starting Your TRX 3 3 Rac...

Страница 25: ...3 When the fuel tank is nearly empty shut off the engine and refuel From here on you do not need to let the engine cool between tanks Tank 4 1 Driving procedure Gently pull the throttle trigger to fu...

Страница 26: ...it is over 220 F and needs to cool down If the water takes a long time or does not evaporate at all then the engine is too cool We do not recommend that you operate your engine below 35 Fahrenheit If...

Страница 27: ...turn counterclockwise and retest This setting will extend engine component life Low Speed Fuel Mixture Adjustment The low speed mixture is always set after the high speed needle is correctly adjusted...

Страница 28: ...nfluence on engine temperature is air temperature Expect the engine temperature to vary almost in direct proportion to air temperature Assuming you tuned the engine for the same maximum performance ea...

Страница 29: ...n It is intended for expert drivers only Experience with nitro powered radio controlled models is required The driver must exercise all caution and accept full responsibility for their own safety and...

Страница 30: ...nch through the clutch drum and into the adjustment set screw See diagram 5 Turn the adjustment screw clockwise to raise the shift point later shifts Be careful not to overtighten the adjustment screw...

Страница 31: ...acers to increase stiffness use stiffer springs Adjust the ride height so that the suspension arms are slightly above being parallel to the ground Note that changes in ride height will occur when the...

Страница 32: ...ver the gears with a cloth to protect the teeth Using the pliers unscrew the gears counter clockwise 4 New clutch gears simply screw onto the clutch bell Reinstall the clutch bell and caphead screw on...

Страница 33: ...the quality and frequency of the engine maintenance Inspect the connecting rod after 3 gallons of fuel have been used Piston sleeve The life of the piston and sleeve will vary greatly with how the eng...

Страница 34: ...el will turn unsticking the piston from the sleeve 3 Put two or three drops of light machine oil into the glow plug hole to lubricate the piston and sleeve Do not use too much oil Excess oil will hydr...

Страница 35: ...cles it has bound to and what settings were used for each up to 30 models total Traxxas Link provides a visual interface to name the models customize their settings attach profiles and lock them into...

Страница 36: ...hing fast green 0 1 sec on 0 15 sec off Throttle Trim Seek Mode Turn the Multi Function knob right or left until the LED stops flashing See sidebar for more information Flashing medium red 0 25 sec on...

Страница 37: ...hrow setting you selected previously Likewise setting the Multi Function knob to disabled will prevent the knob from making further adjustments but the last setting of the Multi Function knob will sti...

Страница 38: ...dpoint and press set to save To reset max throw Let go of controls and press SET The menu tree below shows how to navigate through the TQi transmitter s various settings and functions Press and hold M...

Страница 39: ...ss SET red LED blinks x3 Press MENU twice red LED blinks x3 Turn steering wheel to desired max left and right travel x8 Press SET to save each position Turn steering wheel to test settings IF END POIN...

Страница 40: ...6200 TRAXXAS WAY MCKINNEY TEXAS 75070 1 888 TRAXXAS 140408 KC2075 R00 MODEL 48077 owner s manual...

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