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DESERT RACER • 11

Applying the Decals

The main decals for your model 
have been applied at the 
factory. Additional decals are 
printed on self-adhesive clear 
mylar and are die-cut for easy 
removal. Use a hobby knife to 
lift the corner of a decal and lift 
it from the backing. 

To apply the decals, place 
one end down, hold the 
other end up, and gradually 
smooth the decal down with 
your finger as you go. This 
will prevent air bubbles. 
Placing both ends of the 
decal down and then trying 
to smooth it out will result 
in air pockets.  Look at the 
photos on the box for typical 
decal placement.

TRAXXAS TQ

i

 RADIO & VELINEON POWER SYSTEM

INTRODUCTION

Your model includes the latest Traxxas TQi 2.4GHz transmitter with 
Traxxas Link

 Model Memory. The transmitter’s easy-to-use design 

provides instant driving fun for new RC enthusiasts, and also offers 
a full complement of pro-level tuning features for advanced users 
– or anyone interested in experimenting with the performance of 
their model. The steering and throttle channels feature adjustable 
Exponential, End Points, and Sub-Trims. Steering and braking Dual-
Rate are also available. Many of the next-level features are controlled 
by the Multi-Function knob, which can be programmed to control 
a variety of functions. The detailed instructions (page 31) and Menu 
Tree (page 34) included in this manual will help you understand and 
operate the advanced functions of the new TQi radio system. For 
additional information and how-to videos, visit Traxxas.com.

RADIO AND POWER SYSTEM TERMINOLOGY

Please take a moment to familiarize yourself with these radio and 
power system terms. They will be used throughout this manual.
A detailed explanation of the advanced terminology and features 
of your new radio system begins on page 31.

2.4GHz Spread Spectrum 

– This model is equipped with the latest 

RC technology. Unlike AM and FM systems that require frequency 
crystals and are prone to frequency conflicts, the TQi system 
automatically selects and locks onto an open frequency and offers 
superior resistance to interference and “glitching.” 

BEC (Battery Eliminator Circuit)

 - The BEC can either be in the 

receiver or in the ESC. This circuit allows the receiver and servos 
to be powered by the main battery pack in an electric model. This 
eliminates the need to carry a separate pack of 4 AA batteries to 
power the radio equipment.

Brushless Motor

 - A D/C brushless motor replaces the brushed motor’s 

traditional commutator 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 (coils) on the perimeter of the motor can and 
the magnets are mounted to the spinning rotor shaft.

Cogging 

- Cogging is a condition sometimes associated with 

brushless motors. Typically, it is a slight stutter noticed when 
accelerating from a stop. It happens for a very short period as the 

signals from the electronic speed control and the motor synch 
with each other. The VXL-6s electronic speed control is optimized 
to virtually eliminate cogging. 

Current

 - Current is a measure of power flow through the 

electronics, usually measured in amps. If you think of a wire as a 
garden hose, current is a measure of how much water is flowing 
through the hose.

ESC (Electronic Speed Control)

 - An electronic speed control is the 

electronic motor control inside the model. The VXL-6s electronic 
speed control uses advanced circuitry to provide precise, digital 
proportional throttle control. Electronic speed controls use 
power more efficiently than mechanical speed controls so that 
the batteries run longer. An electronic speed control also has 
circuitry that prevents loss of steering and throttle control as the 
batteries lose their charge.

Frequency band

 - The radio frequency used by the transmitter to 

send signals to your model. This model operates on the 2.4GHz 
direct-sequence spread spectrum.

kV Rating

 - Brushless motors are often rated by their kV number. 

The kV rating equals no-load motor rpm with 1 volt applied. The 
kV increases as the number of wire turns in the motor decreases. 
As the kV increases, the current draw through the electronics  
also increases. 

LiPo

 - Abbreviation for Lithium Polymer. Rechargeable LiPo 

battery packs are known for their special chemistry, which 
allows extremely high energy density and current handling in a 
compact size. These are high performance batteries that require 
special care and handling. LiPo battery packs are for advanced 
users only.

mAh

 – Abbreviation for milliamp hour, a measure of the capacity of 

the battery pack. The higher the number, the longer the battery 
will last between recharges.

Neutral position

 - The standing position that the servos seek when 

the transmitter controls are at the neutral setting.

NiCad

 - Abbreviation for nickel-cadmium. The original 

rechargeable 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” effect and shortened run times.

9

Summary of Contents for 85076-4

Page 1: ...MODEL 85076 4 owner s manual...

Page 2: ...t you will find it helpful and fast Be sure and read through the rest of the manual to learn about important safety maintenance and adjustment procedures Turn to page 10 to begin 3 BEFORE YOU PROCEED...

Page 3: ...is also available at Traxxas com support You may also e mail customer support with your question at support Traxxas com Join thousands of registered members in our online community at Traxxas com Tra...

Page 4: ...R TO CHARGE LIPO BATTERIES AS THIS CAN CAUSE FIRE RESULTING IN PROPERTY DAMAGE AND OR PERSONAL INJURY OR DEATH Terms of Use This product is surrendered by Traxxas to the purchaser with the understandi...

Page 5: ...d the maximum manufacturer recommended charge rate DO NOT attempt to charge non rechargeable batteries explosion hazard batteries that have an internal charge circuit or a protection circuit or batter...

Page 6: ...other unauthorized driver Always disconnect the batteries in the model when it is not in use Never store the vehicle with batteries in the model as this can cause a fire leading to property damage ser...

Page 7: ...your hobby dealer to operate and maintain your model Supplied Tools and Equipment Required Equipment Battery and charger style are subject to change and may vary from images 4 AA alkaline batteries Li...

Page 8: ...Electronic Speed Control LED Light Pipe Axle Carrier Receiver Box Antenna Mount Upper Suspension Arm Toe Link Shock Roll Cage Rear Driveshaft Assembly spare Driveshaft Rear Swaybar Linkage Trailing Ar...

Page 9: ...View Motor Spur Gear Pinion Gear Battery Hold Down Steering Servo Chassis Skidplate Rear Upper Link Limit Strap Transmission Front Skidplate Trailing Arm Shock Driveshaft Lower Suspension Arm Rear Axl...

Page 10: ...and that there is no interference from outside sources 3 Install batteries in the transmitter See page 14 8 Detail your model See sidebar page 11 The transmitter requires 4 AA alkaline batteries sold...

Page 11: ...ator 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 coil...

Page 12: ...of the neutral position of the servos made by adjusting the throttle and steering trim knobs on the face of the transmitter Note The Multi Function knob must be programmed to serve as a throttle trim...

Page 13: ...Trim Multi Function Knob Throttle Trigger Throttle Neutral Adjust Steering Wheel Channel 1 Steering Servo 2200Kv Brushless Motor Channel 2 VXL 6s Electronic Speed Control Antenna Power Switch Battery...

Page 14: ...become extremely hot and damage or injury could occur SELECTING A CHARGER FOR YOUR MODEL Make certain you choose the correct type of charger for the batteries you select Traxxas recommends you choose...

Page 15: ...d menus for the easiest and safest charging solution possible Visit Traxxas com to learn more about this feature and available Traxxas iD chargers and batteries TRAXXAS TQi RADIO VELINEON POWER SYSTEM...

Page 16: ...operation Plug the 4s accessory adapter into the 2s 3s battery connector from the speed control When using a Traxxas 5000mAh 4s battery pack part 2888X install foam battery spacers in the battery com...

Page 17: ...miss it simply turn off the transmitter and start over Always turn on the transmitter before plugging in the battery RADIO SYSTEM BASIC ADJUSTMENTS Throttle Neutral Adjustment The throttle neutral adj...

Page 18: ...ur radio system to ensure that it operates properly 1 Turn on the radio system and check its operation as described in the previous section 2 Have a friend hold the model Make sure hands and clothing...

Page 19: ...ding drifting and so on On surfaces with very little traction loose dirt smooth concrete ice snow increase TSM to maximize acceleration and control Drive with TSM on and off to test how it is making y...

Page 20: ...D turns solid green then solid red and then begins blinking red It will blink once then twice then three times then repeat One blink Sport Mode is the default setting It allows full forward and revers...

Page 21: ...3 When the LED blinks red three times release the EZ Set button 4 The LED will blink and then turn solid green The model is ready to drive Note If you missed the mode you wanted keep the EZ Set butto...

Page 22: ...XL 6s will automatically shut down fail safe mode The LED on the speed control will slowly blink red indicating a low voltage shutdown Stop driving the model The VXL 6s will stay in this mode until fu...

Page 23: ...e obstruction before continuing Do not push or pull objects with the model Because the model is controlled by radio it is subject to radio interference from many sources beyond your control Since radi...

Page 24: ...re Each hole should be near the tire center line 180 degrees apart 3 Confirm that the receiver box O ring and cover are installed correctly and secure Make sure the screws are tight and the blue O rin...

Page 25: ...earings Remove clean and re oil the bearings RECEIVER BOX MAINTAINING A WATERTIGHT SEAL Removing and Installing Radio Gear The unique design of the receiver box allows the removal and installation of...

Page 26: ...gearing from the pin location chart Replace the spur and pinion gears as needed When installing the motor install the pin into its proper location based on the gearing that is chosen The pin on the bo...

Page 27: ...ing Lowering the viscosity of the oil will cause the suspension damping to be reduced Damping should be increased with higher viscosity oil if the model is bottoming easily over jumps Damping should b...

Page 28: ...ve pins are not cracked or extremely worn Additional driveline noise can occur if the driveline components are worn out Remove the gear cover Inspect the spur gear for wear and check the tightness of...

Page 29: ...ight of shock oil available to you From the factory the Desert Racer is equipped with pistons with 1 7mm bypass holes recommended Shock disassembly The shocks must be removed from the vehicle and disa...

Page 30: ...The differential is filled with silicone differential fluid and is sealed to maintain consistent long term performance Changing the oil in the differential with either lower or higher viscosity oil wi...

Page 31: ...ty setting Steering Percentage Dual Rate The Multi Function knob can be set to control the amount percentage of servo travel applied to steering Turning the Multi Function knob fully clockwise will de...

Page 32: ...made with the Multi Function knob are overlaid on top of each other For example if you assign the Multi Function to adjust Steering Percentage and set it for 50 then reassign the knob to control Stee...

Page 33: ...o select any model from a list of model memory entries The transmitter and receiver do it all for you automatically To activate Model Lock 1 Switch on the transmitter and receiver you wish to lock 2 P...

Page 34: ...s how to navigate through the TQi transmitter s various settings and functions Press and hold MENU to enter the Menu Tree and use the following commands to navigate through the menu and select options...

Page 35: ...en 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 set...

Page 36: ...ums 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 Manage up to 30 Models with Tra...

Page 37: ...6250 TRAXXAS WAY McKINNEY TEXAS 75070 1 888 TRAXXAS 180403 85076 4 OM EN R01 owner s manual...

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