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TRAXXAS RALLY • 15

TRAXXAS TQ

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 RADIO & VELINEON POWER SYSTEM

3.   When the transmitter and receiver’s LEDs turn solid green, the 

system is bound and ready for use. Confirm that the steering and 
throttle operate properly before driving your model.

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 model’s handling is the “right setting.” 

SETTING UP THE ANTENNA

The receiver antenna has been set up and installed from the 
factory. The antenna is secured by a 3x4mm set screw. To remove 
the antenna tube, simply remove the set screw with the included 
1.5mm wrench. 
When reinstalling the antenna, first slide the antenna wire into 
bottom of antenna tube until white tip of antenna is at top of tube 
under the black cap. Next insert 
the antenna tube into the mount 
while making sure that antenna 
wire is in slot in the antenna mount, 
then install the set screw next to 
the antenna tube. Use the supplied 
1.5mm wrench to tighten the screw 
just until the antenna tube is securely 
in place. Do not over tighten. 

Do not 

bend or kink the antenna wire! See the 
side bar for more information. Do not 
shorten the antenna tube.

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

Turning Range  

at Transmitter

Effective Turning 

Range on Model

Antenna 

Tip

Antenna 

Tube

Antenna 

Mount

Summary of Contents for 74076 Rally

Page 1: ...owner s manual MODEL 74076 1...

Page 2: ...ce and this device must accept any interference including interference that may cause undesired operation of the device Radio Frequency RF Exposure Statement This equipment complies with radio frequen...

Page 3: ...SAFETY PRECAUTIONS All of us at Traxxas want you to safely enjoy your new model Operate your model sensibly and with care and it will be exciting safe and fun for you and those around you Failure to...

Page 4: ...ar you ask your local hobby dealer or visit www call2recycle org LiPo Batteries Lithium Polymer LiPo batteries are becoming popular for use in R C models due to their compact size high energy density...

Page 5: ...e Side cutters and or needle nose pliers Philips screwdriver Soldering iron For more information on batteries see Use the Right Batteries on page 11 U joint wrench Pre load spacers and shock pistons B...

Page 6: ...wn Caster Block Steering Block Battery Receiver Box Antenna Mount Front Suspension Arm Front Bumper Steering Servo Shock Toe Link Front Camber Link Rear Camber Link Rear Shock Tower Traxxas High Curre...

Page 7: ...nce from outside sources 3 Install batteries in the transmitter See page 11 8 Detail your model See sidebar page 8 The transmitter requires 4 AA alkaline batteries sold separately Apply other decals i...

Page 8: ...mutator and brush arrangement with intelligent electronics that energize the electromagnetic windings in sequence to provide rotation Opposite of a brushed motor the brushless motor has its windings c...

Page 9: ...r easy wire replacement The Velineon 3500 is equipped with solder tabs Transmitter The hand held radio unit that sends throttle and steering instructions to your model Trim The fine tuning adjustment...

Page 10: ...Multi Function Knob Throttle Trigger Throttle Neutral Adjust Steering Wheel Power Switch Battery Compartment Set Button Menu Button Red Green Status LED see page 27 for more info Link Button LED Sens...

Page 11: ...entation as indicated in the battery compartment 3 Reinstall the battery door and snap it closed 4 Turn on the transmitter and check the status indicator for a solid green light If the status LED flas...

Page 12: ...se it on the opposite side of the chassis Note For taller batteries an extended battery hold down part 7426X is available sold separately For shorter batteries 6 cell use the included foam block in th...

Page 13: ...he transmitter and start over Always turn on the transmitter before plugging in the battery RADIO SYSTEM BASIC ADJUSTMENTS Throttle Neutral Adjustment The throttle neutral adjustment is located on the...

Page 14: ...t apply full throttle in forward or reverse while the model is elevated 8 Once adjustments are made turn off the receiver on your model followed by the hand held transmitter Range Testing the Radio Sy...

Page 15: ...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 fart...

Page 16: ...ck to the factory defaults Otherwise you may not get the best performance from your speed control The transmitter should be adjusted as follows If the transmitter setting have been adjusted reset them...

Page 17: ...to drive SelectingTrainingMode Profile 3 50 Forward 100 Brakes 50 Reverse 1 Connect a fully charged battery pack to the VXL 3s and turn on your transmitter 2 With the VXL 3s off press and hold the EZ...

Page 18: ...charger Read and follow all maintenance and care instructions provided by the manufacturer of your batteries and charger Keep the VXL 3s cool Get plenty of airflow across the ESC heat sinks Use the co...

Page 19: ...electronics in the receiver Removing the receiver box cover during storage allows the air inside to dry This step can improve the long term reliability of the receiver It is not necessary to remove th...

Page 20: ...ately 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 n...

Page 21: ...nob to the center 0 position 5 Disconnect motor wires A and C see page 10 to prevent the motor from turning during the next steps Connect a fresh battery pack to the speed control and turn on the ESC...

Page 22: ...rtion from overtightening If the bottom of the shock is leaking then it is time for a rebuild The Traxxas rebuild kit for two shocks is part 2362 Driveline Inspect the driveline for signs of wear such...

Page 23: ...t hole Position 1 or 2 Position 4 is the stock setting To lower the roll center further move the outer camber link ends to the lower position on the C hub Bump steer correction Bump steer refers to un...

Page 24: ...n high current motor applications TUNING THE SEALED GEAR DIFFERENTIALS The action of the model s front and rear gear differentials can be tuned for different driving conditions and performance require...

Page 25: ...ial 1 Remove the two 3x20mm button head screws that secure the top bumper mount to diff case 2 Turn the chassis over and remove the two 3x12mm countersunk screws that hold the bumper skid plate to the...

Page 26: ...ustment settings you select will represent what you wish to be the servo s maximum travel the Steering Percentage or Braking Percentage functions will not override the End Point settings Steering and...

Page 27: ...u may wish to delete a model you no longer drive from the memory 1 Switch on the transmitter and receiver you wish to delete 2 Press and hold MENU Release when the status LED blinks green 3 Press MENU...

Page 28: ...Push forward to desired endpoint 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...

Page 29: ...LED blinks Press 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 settin...

Page 30: ...threshold warnings and log maximums minimums or averages Use the recording function to document your dashboard view with sound so that you can keep your eyes on your driving and not miss a single apex...

Page 31: ...____ wt Oil __________ wt Piston 1 hole Piston 1 hole Piston 2 hole Piston 2 hole Piston 3 hole Piston 3 hole Battery Placement Front Tire Type_________________ Tire Insert_ _______________ Wheel_ ___...

Page 32: ...______lbs Springs Color ___________________ Preload _________mm ______mm ______mm Springs Color ___________________ Preload _________mm Oil __________ wt Oil __________ wt Piston 1 hole Piston 1 hole...

Page 33: ..._mm Oil __________ wt Oil __________ wt Piston 1 hole Piston 1 hole Piston 2 hole Piston 2 hole Piston 3 hole Piston 3 hole Battery Placement Front Tire Type_________________ Tire Insert_ ____________...

Page 34: ...6200 TRAXXAS WAY McKINNEY TEXAS 75070 1 888 TRAXXAS 141231 74076 1 OM N EN R01...

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