Traxxas 3908L, 3908, E-MAXX BRUSHLESS User guide

MODEL 3908L

MODEL 3908

owner’s manual

INTRODUCTION

3 BEFORE YOU

PROCEED

3 SAFETY

PRECAUTIONS

6 E-MAXX BRUSHLESS

EDITION OVERVIEW

7 TOOLS, SUPPLIES

AND REQUIRED

EQUIPMENT

8 QUICK START:

GETTING UP

TO SPEED

9 TRAXXAS TQ

RADIO SYSTEM

17 ADJUSTING

THE ELECTRONIC

SPEED CONTROL

18 DRIVING YOUR MODEL

20 TUNING

ADJUSTMENTS

25 MAINTAINING

YOUR MODEL

26 TQi ADVANCED

TUNING GUIDE

i

Thank you for purchasing the new Traxxas E-Maxx Brushless
Edition electric monster truck. When it comes to gut-wrenching,
wheelie-popping monster torque, nothing comes close to E-Maxx.
We are confident you will appreciate the latest performance
and appearance enhancements that have been made to this
legendary model.

This manual contains the instructions you will need to operate,
and maintain your model so that you can enjoy it for years to
come. We want you to feel confident that you own one of the
best-performing models in the market and that it is backed by
a team of professionals who aim to provide the highest level of
factory support possible. Traxxas models are about experiencing
total performance and satisfaction, not just with your model, but
also with the company that stands behind it.

We know you’re excited about getting your new model on
the road, but it’s very important that you take some time to
read through the Owners Manual. This manual contains all the
necessary set-up and operating procedures that allow you to
unlock the performance and potential that Traxxas engineers
designed into your model. Even if you are an experienced R/C

enthusiast, it’s important to read and follow the procedures in
this manual.

Thank you again for going with Traxxas. We work hard every day
to assure you the highest level of customer satisfaction possible.
We truly want you to enjoy your new model!

Traxxas Support

Traxxas support is with you every step of the
way. Refer to the next page to find out how to
contact us and what your support options are.

Quick Start

This manual is designed with a Quick
Start path that outlines the necessary
procedures to get your model up
and running in the shortest time possible. If you are an
experienced R/C enthusiast 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 8 to begin.

REGISTERING YOUR MODEL

In order to serve you better as our customer, please
register your product within 10 days of your purchase
online at Traxxas.com/register.

Traxxas.com/register

2 • E-MAXX BRUSHLESS

BEFORE YOU PROCEED

Carefully read and follow all instructions in this and any
accompanying materials to prevent serious damage to your
model. Failure to follow these instructions will be considered
abuse and/or neglect.

Before running your model, look over this entire manual and
examine the model carefully. If for some reason you decide it is not
what you wanted, then do not continue any further. Your hobby

dealer absolutely cannot accept a model for return or exchange
after it has been run.

Warnings, Helpful Hints, & Cross-References

Throughout this manual, you’ll notice warnings and helpful hints
identified by the icons below. Be sure to read them!

An important warning about personal safety or avoiding
damage to your model and related components.

Special advice from Traxxas to make things easier
and more fun.

Refers you to a page with a related topic.

SUPPORT

If you have any questions about your model or its operation,
call the Traxxas Technical Support line toll-free at:
1-888-TRAXXAS (1-888-872-9927)*

Technical support is available Monday through Friday from 8:30am
to 9:00pm central time. Technical assistance is also available at
Traxxas.com. You may also e-mail customer support with your
question at [e-mail]. Join thousands of registered
members in our online community at Traxxas.com.

Traxxas offers a full-service, on-site repair facility to handle any
of your Traxxas service needs. Maintenance and replacement
parts may be purchased directly from Traxxas 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 your product support needs.
We want you to be thoroughly satisfied with your new model!

*Toll-free support is available to U.S. residents only.

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 operate your model in a safe and
responsible manner may result in property damage and serious injury.
The precautions outlined in this manual should be strictly followed to help
ensure safe operation. You alone must see that the instructions are followed
and the precautions are adhered to.

Important Points to Remember

• Your model is not intended for use on public roads or congested areas
where its operation can conflict with or disrupt pedestrian or vehicular
traffic.

• Never, under any circumstances, operate the model in crowds of people.
Your model is very fast and could cause injury if allowed to collide with
anyone.

• Because your model is controlled by radio, it is subject to radio interference
from many sources that are beyond your control. Since radio interference
can cause momentary losses of radio control, always allow a safety margin
in all directions around the model in order to prevent collisions.

• The motor, battery, and speed control can become hot during use. Be
careful to avoid getting burned.

• Don’t operate your model at night, or anytime your line of sight to the
model may be obstructed or impaired in any way.

• Most importantly, use good common sense at all times.

Speed Control

Your model’s electronic speed control (ESC) is an extremely powerful
electronic device capable of delivering high current. Please closely follow
these precautions to prevent damage to the speed control or other
components.

• Disconnect the Battery: Always disconnect the battery or batteries from the
speed control when not in use.

• Insulate the Wires: Always insulate exposed wiring with heat shrink tubing
to prevent short circuits.

• Water and Electronics Do Not Mix: The power system is NOT WATERPROOF.
Do not expose the power system to any type of water, condensation, or
moisture.

• Transmitter on First: Switch on your transmitter first before switching on
the speed control to prevent runaways and erratic performance.

• Do not remove the heat sinks from the ESC. Three heat sinks are factory­installed on the speed control and must be used for maximum cooling and
performance.

• Don’t Get Burned: The ESC and motor can become extremely hot during
use, so be careful not to touch them until they cool. Supply adequate
airflow for cooling.

Traxxas
1100 Klein Road
Plano, Texas 75074
Phone: [phone]
Toll-free 1-888-TRAXXAS

Internet
Traxxas.com
E-mail: [e-mail]

Entire contents ©2012 Traxxas.
Traxxas, Ready-To-Race, Ready­To-Win, E-Maxx and ProGraphix
are trademarks or registered
trademarks of Traxxas. Other
brand names and marks are
the property of their respective
holders and are used only for
purposes of identification. No
part of this manual may be
reproduced or distributed in print
or electronic media without the
express written permission of
Traxxas. Specifications are subject
to change without notice.

1

E-MAXX BRUSHLESS • 3

SAFETY PRECAUTIONS

bluehighway font

Choose the Model That is Right For You. For individual Models

No previous experience with radio controlled models is required.
Models require a minimum of setup, maintenance, or support equipment.

Previous experience with radio controlled models is recommended.
Models require a higher level of setup, maintenance, or support equipment.

No previous experience with radio controlled models is required.
Model requires a minimum of setup, maintenance, or support equipment.

Previous experience with radio controlled models is recommended.
Model requires a higher level of setup, maintenance, or support equipment.

BELOW TEXT HAS BEEN UPDATED on 3-14-07
Kent wants maintenance text to be at the END of the paragraph.-- KB

bluehighway font

Choose the Model That is Right For You. For individual Models

No previous experience with radio controlled models is required.
Models require a minimum of setup, maintenance, or support equipment.

Previous experience with radio controlled models is mandatory. These
models are capable of high speeds, requiring experienced driving control.
Models require detailed setup, and/or maintenance procedures with required
support equipment.

Previous experience with radio controlled models is mandatory.
These models are capable of very high speeds and require an even higher
level of skilled driving control. Models require detailed setup, and/or mainte-
nance procedures with required support equipment.

For Expert Drivers Only. This product is capable of extreme speed

Previous experience with radio controlled models is recommended.
Models require a higher level of setup, maintenance, or support equipment.

No previous experience with radio controlled models is required.
Model requires a minimum of setup, maintenance, or support equipment.

Previous experience with radio controlled models is mandatory. This model is
capable of high speeds, requiring experienced driving control. Model requires
detailed setup, and/or maintenance procedures with required support
equipment.

Previous experience with radio controlled models is mandatory. This model is
capable of very high speeds and requires an even higher level of skilled driving
control. Model requires detailed setup, and/or maintenance procedures with
required support equipment.

Previous experience with radio controlled models is recommended.
Model requires a higher level of setup, maintenance, or support equipment.

BELOW TEXT HAS BEEN UPDATED on 3-14-07
Kent wants maintenance text to be at the END of the paragraph.-- KB

1500

3600

All instructions and
precautions outlined in this
manual should be strictly
followed to ensure safe
operation of your model.

This model is not intended
for use by children under
14 years of age without the
supervision of a responsible
and knowledgeable adult.

Model #3908

Previous experience with radio
controlled models is recommended.
Models require a higher level of setup,
maintenance, or support equipment.

Model #3908L

For Expert Drivers

Not a Toy! For Expert Drivers Only.
This product is capable of extreme
speed and acceleration! It carries our
expert skill level rating and is intended
for highly experienced drivers only.
Experience with high-powered radio
controlled models is required!

4 • E-MAXX BRUSHLESS

• Use the Factory-Installed Stock Connectors: Do not change the battery and
motor connectors. Improper wiring can cause fire or damage to the ESC.
Please note that modified speed controls can be subject to a rewiring fee
when returned for service.

• No Reverse Voltage: The ESC is not protected against reverse polarity voltage.

• No Schottky Diodes: External Schottky diodes are not compatible with
reversing speed controls. Using a Schottky diode with your speed control
will damage the ESC and void the 30-day warranty.

• Always adhere to the minimum
and maximum limitations of the
speed control as stated in the
specifications table in the Owner’s
Manual. If your ESC operates on
two batteries, do not mix battery
types and capacities. Use the
same voltage and capacity for
both batteries. Using mismatched
battery packs could damage the
batteries and electronic speed control.

LiPo Batteries

Lithium Polymer (LiPo) batteries are becoming popular for use in R/C
models due to their compact size, high energy density, and high-current
output. However, these types of batteries require special care and handling
procedures for long life and safe operation. Warning: LiPo batteries are
intended only for advanced users that are educated on the risks associated
with LiPo battery use. Traxxas does not recommend that anyone under the

age of 14 use or handle LiPo battery packs without the supervision of a
knowledgeable and responsible adult.

Your model is able to use LiPo batteries. LiPo batteries have a minimum safe
discharge voltage threshold that should not be exceeded. The electronic
speed control is equipped with built-in Low-Voltage Detection that alerts the
driver when LiPo batteries have reached their minimum voltage (discharge)
threshold. It is the driver’s responsibility to stop immediately to prevent

the battery pack from being discharged below its safe minimum threshold.

Low-Voltage Detection on the speed control is just one part of a
comprehensive plan for safe LiPo battery use. It is critical for you, the user,

to follow all other instructions supplied by the battery manufacturer and
the charger manufacturer for proper charging, use, and storage of LiPo
batteries. Make sure you understand how to use your LiPo batteries. Be

aware that Traxxas shall not be liable for any special, indirect, incidental,
or consequential damages arising out of the installation and/or use of
LiPo batteries in Traxxas models. If you have questions about LiPo battery
usage, please consult with your local hobby dealer or contact the battery
manufacturer. As a reminder, all batteries should be recycled at the end of
their useful life.

1500

3600

Do not mix battery
capacities. Use two

batteries with the

same capacity.

Do not use a 6-cell 7.2V
battery in combination

with a 7-cell battery

8.4V pack.

WARNING! CAUTION! DANGER!

FIRE HAZARD! Charging and discharging batteries has the potential for

fire, explosion, serious injury, and property damage if not performed per the
instructions. In addition, Lithium Polymer (LiPo) batteries pose a SEVERE risk of

manufacturer’s instructions, warnings, and precautions. Never allow children under 14 years old
to charge or use LiPo batteries without the supervision of a responsible, knowledgeable adult.

• While charging or discharging, ALWAYS place the battery (all types of batteries) in a fire
retardant/fire proof container and on a non-flammable surface such as concrete.

• ALWAYS charge batteries in a well-ventilated area.

• REMOVE flammable items and combustible materials from the charging area.

• ONLY use a Lithium Polymer (LiPo) balance charger with a balance adapter to charge LiPo
batteries.

• If any battery or cell is damaged in any way, do NOT charge, discharge, or use the battery.

• BEFORE you charge, ALWAYS confirm that the charger settings exactly match the battery
type (chemistry), specification, and configuration to be charged.

• Do NOT exceed the maximum manufacturer recommended charge rate.

• Do NOT disassemble, crush, short circuit, or expose the batteries to flame or other source
of ignition.

• NEVER leave batteries unattended while charging.

TERMS OF USE - The buyer assumes all risk associated with using this

product. Traxxas, its affiliates, manufacturers, distributors, and retail partners
cannot control the use, application, charging or installation of this product
and shall not be held responsible for any accident, injury to persons, or
damage to property resulting from the use of this product.

After reading all, if you do not agree with these terms and conditions and are
not prepared to accept complete liability for the use of this product, return
this product immediately in new/unused condition to your place of purchase.

Your retailer absolutely cannot accept product for return or exchange if it
has been used in any way.

If you have any questions call Traxxas Customer Support at
1-888-TRAXXAS (1-888-872-9927) Outside the US [phone]
or e-mail [e-mail].

ONLY use a Lithium Polymer (LiPo) balance charger with a balance adapter
(Such as the Traxxas EZ-Peak Plus Charger #2933 or the 2-Cell /3-Cell LiPo
Balance Charger) to charge LiPo batteries. Never use NiMH or NiCD type
chargers or charge modes to charge LiPo batteries. The use of a NiMH or
NiCD charger or charge mode will damage the batteries and may cause fire
and personal injury. Never charge LiPo battery packs in series or parallel
with this charger.

fire if not properly handled per the instructions. Before use, read and follow all

Important Warnings for users of Lithium Polymer (LiPo) batteries:

Lithium Polymer (LiPo) batteries are significantly more volatile than
other rechargeable batteries.

SAFETY PRECAUTIONS

Charging packs in series or parallel may result in improper charger cell
recognition and an improper charging rate that may lead to overcharging,
cell imbalance, cell damage and fire.

• ALWAYS inspect your LiPo batteries carefully before charging. Look for
any loose leads or connectors, damaged wire insulation, damaged cell
packaging, impact damage, fluid leaks, swelling (a sign of internal damage),
cell deformity, missing labels, or any other damage or irregularity. If any of
the above conditions are observed, do not charge or use the battery pack.

• Do not store or charge LiPo batteries with or around other batteries or
battery packs of any type, including other LiPos.

• Store and transport your LiPo batteries in a cool dry place. Do not store in
direct sunlight. Do not allow the storage temperature to exceed 140°F or
60°C or the cells may be damaged and risk of fire created.

• Do NOT disassemble LiPo batteries or cells.

• Do NOT attempt to build your own LiPo battery pack from loose cells.

• ALWAYS proceed with caution and use good common sense at all times.

Charging and Handling Precautions/Warnings

• ALWAYS proceed with caution and use good common sense at all times.

• Children require adult supervision while using this charger.

• Do NOT let any exposed battery contacts or wires touch each other. This will
cause the battery to short circuit and create the risk of fire.

• While charging, ALWAYS place the battery (all types of batteries)in a fire
retardant/fire proof container and on a non-flammable surface such as
concrete.

• NEVER charge batteries, on wood, cloth, carpet or on any other flammable
material

• ALWAYS charge batteries in a well-ventilated area.

• REMOVE flammable items and combustible materials from the charging
area.

• DO NOT operate the charger in a cluttered space, or place objects on top of
the charger or battery.

• If any battery or battery cell is damaged in any way, do NOT charge,
discharge, use the battery.

• BEFORE you charge, ALWAYS confirm that the charger settings exactly
match the type (chemistry), specification, and configuration of the battery to
be charged.

• Keep a Class D fire extinguisher nearby in case of fire.

• Do NOT use the 2-3 cell LiPo charger #2935 to charge NiMh batteries.

• Do NOT exceed the maximum battery manufacturer’s recommended
charge rate.

• Do NOT disassemble, crush, short circuit, or expose the batteries or cells to
flame or any other source of ignition.

• If a battery gets hot to the touch during the charging process (temperature
greater than 110°F / 43°C), immediately and disconnect the battery from
charger immediately and discontinue charging.

• Do NOT leave the charger and battery unattended while charging,
discharging, or anytime the charger is ON with a battery connected. If there
are any signs of a malfunction, unplug the power source and/or stop the
charging process immediately.

• ALWAYS unplug the charger from the wall outlet and disconnect the battery
when not in use.

• Do NOT operate the charger inside of an automobile.

• AVOID short-circuits by always connecting the charge cable to the charger
first and then to the battery to charge or discharge. Remember to always
reverse this procedure when disconnecting the battery.

• NEVER connect more than one battery at a time to the charger.

• DO NOT disassemble the charger.

• REMOVE the battery from your model or device before charging.

• Do NOT expose the charger to water or moisture.

• ALWAYS store battery packs safely out of the reach of children and pets.

• DO NOT charge batteries if you observe ANY of the following conditions:

- Batteries that are fully charged or have been only slightly discharged.

- Batteries that are hot (temperature greater than 110°F / 43°C)

- Batteries that are not expressly stated by the manufacture to be suitable
to accept the power output (voltage and amperage) the charger delivers
during the charging process.

- Batteries that are damaged or defective in any way. Examples of damage
or defects include, but are not limited to: batteries with dented cells,
damaged or frayed wires, loose connections, fluid leaks, corrosion, plugged
vents, swelling, cell deformity, impact damage, missing labels, melted
components or any other signs of damage.

- Battery packs that have been altered from original manufacturer
configuration.

- Non-rechargeable batteries (explosion hazard).

- Batteries that have an internal charge circuit or a protection circuit.

E-MAXX BRUSHLESS • 5

E-MAXX BRUSHLESS EDITION OVERVIEW

Half Shaft

Demi arbre
Semieje
Halbwelle

Toe Link

Traverse
Eje de suspensión
Spurstange

Rear Body Mount

Support de carrosserie arrière
Montaje trasero de la carrocería
Karosseriehalter hinten

Skid Plate

Plaque de protection
Placa delantera protectora
Kufenblech

Rear Bumper

Pare-choc arrière
Parachoques trasero
Hinterer Stoßfänger

Wheelie Bar

Barre de wheelie
Barra para piruetas
Wheelie-Stütze

Traxxas High-Current Connector

Connecteur haut courant de Traxxas
Conector de alta corriente de Traxxas
Traxxas Hochstrom-Anschluss

Electronic Speed Control

Commande de vitesse électronique
Control de velocidad electrónico
Elektronischer Geschwindigkeitsregler

Battery Hold-Down

Support de pile
Sujeción de la batería
Batterieniederhalter

Battery Compartment

Compartiment pile
Compartimento para baterías
Batteriefach

Motor
Moteur
Motor
Motor

Spur Gear

Pignon droit
Engranaje cilíndrico
Zahnrad

Pinion Gears

Engrenage à pignons

Engranaje de piñón

Ritzel

Hex Hub

Moyeu hexagonal
Eje hexagonal
Sechskantnabe

Pivot Ball

Pivot à rotule
Bola de pivote
Kugelgelenk

Axle Carrier

Support d’essieu

Soporte del eje

Achsträger

Toe Link

Traverse

Eje de suspensión

Spurstange

Front Suspension Arm

Bras de suspension avant

Brazo de suspensión delantero

Montaje delantero de la carrocería

Stoßdämpfer vorne

Front Body Mount

Support de carrosserie avant

Karosseriehalter vorne

Receiver Box

Boîte du récepteur

Receptor

Empfänger

Front Differential

Différentiel avant

Diferencial delantero

Vorderes Differenzial

Front Bumper

Pare-choc avant

Parachoques delantero

Vorderer Stoßfänger

Rear Differential

Différentiel arrière
Diferencial trasero
Hinteres Differenzial

Rear Shock Tower

Tour d’amortisseur arrière
Torre trasera
Hinterer Stoßdämpfer

Rear Bulkhead

Cloison arrière
Mamparo trasero
Rückwand

Rear Suspension Arm

Bras de suspension arrière
Brazo de suspensión trasero
Hinterachsquerlenker

Chassis

Châssis
Chasis
Karosserie

Slipper Clutch

Embrayage unidirectionnel
Embrague antirrebote
Rutschkupplung

Transmission

Transmission
Transmisión
Getriebe

LED Light Pipe

Conduit de lumière à témoin DEL
Tubo luminoso LED
LED-Beleuchtung

Antenna Mount

Support d’antenne
Soporte de la antena
Antennenhalterung

Steering Servos

Servos de direction
Servos de dirección
Lenkservos

Plaque de protection

Placa delantera protectora

Tour d’amortisseur avan

Vorderer Stoßdämpfer

Skid Plate

Kufenblech

Front Bulkhead

Cloison avant

Mamparo delantero

Stirnwand

Front Shock Tower

Torre delantera

Shock

Amortisseur

Amortiguador

Stoßdämpfer

TOOLS, SUPPLIES AND REQUIRED EQUIPMENT

Your model comes with a set of specialty metric tools. You’ll need to purchase other items, available from your hobby dealer, to operate
and maintain your model.

Supplied Tools and Equipment • Outils et équipements fournis • Equipo y herramientas suministradas • Mitgeliefertes Werkzeug und Ausrüstung

2.0mm “T” wrench

Clé “T” de 2,0mm
Llave “T” de 2.0 mm
2,0 mm „T“-Schlüssel

1.5mm “L” wrench

Clé “L” de 1,5mm
Llave Allen de 1.5 mm
1,5 mm Innensechskantschlüssel

2.5mm “L” wrench

Clé “L” de 2,5mm
Llave Allen de 2.5 mm
2,5 mm Innensechskantschlüssel

8mm/5mm wrench

Clé de 8mm/5mm
Llave de 8 mm/5 mm
8 mm/5 mm Schlüssel

Universal wrench

Clé universelle
Llave universal
Universalschlüssel

Body clips

Clips de carrosserie
Ganchos de carrocería
Clips

For more information on
batteries, see Use the Right
Batteries on page 12.

A peak-detecting charger
is recommended for best
performance and longest
battery life. For more
information, see Use the
Right Charger on page 13.

Antenna nut wrench

Clé d’écrou d’antenne
Llave de tuercas para antena
Antennenschlüssel

#3908

Two NiMH battery packs*

Deux piles NiMH*
Dos baterías de NiMH*
Zwei NiMH-Batterien*

Suspension multi-tool

Outil multifonction de suspension
Herramientas múltiples de suspensión
Federungs-Multi-Werkzeug

#3908L

LiPo battery*

Batteries packaged separately.
Ask your dealer for details.

Pile LiPo*

Les piles sont livrées séparément.
Demandez des détails à votre marchand.

Batería LiPo*

Las baterías se embalan de manera individual.
Pregunte a su distribuidor los detalles.

LiPo-Batterie*

Batterien separat verpackt. Fragen Sie Ihren
Händler nach Details.

Pre-load spacers and shock pistons

Entretoises de charge initiale et pistons d’amortisseur
Pistones para amortiguador y separadores de precarga
Vorspann-Abstandshalter und Stoßdämpferkolben

2 Battery chargers*

2 Chargeurs de piles*
2 Cargadores de batería*
2 Batterieladegeräte*

Foam battery spacer

Intercalaire en mousse pour les piles
Separador de batería de goma espuma
Schaumstoff-Batterietrenner

Required Equipment • Équipement requis • Equipo requerido • Benötigte Ausrüstung

4 AA alkaline batteries

4 piles alcalines AA
4 baterías alcalinas AA
4 AA Alkaline Batterien

*Battery and charger style are subject to change and may vary from images. *Le type de pile et de chargeur peut changer et ne pas correspondre aux images. *Los tipos de cargador y batería están sujetos a
cambio y pueden diferir de las imágenes. *Die Art der Batterien und des Ladegeräts kann jederzeit geändert werden und kann eventuell von den Fotos abweichen.

(3908 Only) NiMH battery charger
(Seulement pour 3908) Chargeur de pile NiMH
(Solamente para 3908) Cargador de batería de NimH
(Nur für 3908) Ladegerät für NiMH-Batterien

Recommended Equipment

These items are not required
for the operation of your
model, but are a good idea to
include in any R/C toolbox:

• Safety glasses

• Thin, hobby-quality
cyanoacrylate instant tire
glue (CA glue)

• Hobby knife

• Side cutters and/or needle
nose pliers

• Philips screwdriver

• Soldering iron

E-MAXX BRUSHLESS • 7

The Quick Start Guide is
not intended to replace the
full operating instructions
available in this manual.
Please read this entire
manual for complete
instructions on the proper
use and maintenance of
your model.

QUICK START: GETTING UP TO SPEED

The following guide is an overview of the procedures for getting your model running. Look for the Quick Start logo on the bottom
corners of Quick Start pages.

1. Read the safety precautions on page 3 8. Detail your model • See page 9

For your own safety, understand where carelessness and misuse
could lead to personal injury.

2. Charge the battery packs • See page 12 9. Drive your model • See page 18

Fully charge the two included battery packs. Charge your batteries
now so it will be ready when you finish the other setup procedures.

3. Install batteries in the transmitter • See page 12 10. Maintain your model • See page 25

The transmitter requires 4 AA alkaline or rechargeable batteries. Follow these critical steps to maintain the performance

4. Install battery packs in the model • See page 13

Your model requires two fully charged battery packs (included).

5. Turn on the radio system • See page 14

Make a habit of turning the transmitter on first, and off last.

Apply other decals if desired.

Driving tips and adjustments for your model.

of your model and keep it in excellent running condition.

8 • E-MAXX BRUSHLESS

6. Check servo operation • See page 15

Make sure the steering servos are working correctly.

7. Range test the radio system • See page 15

Follow this procedure to make sure your radio system works properly
at a distance and that there is no interference from outside sources.

TRAXXAS TQi RADIO 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 R/C enthusiasts, and also offers
a full compliment 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 functions. The detailed instructions (page 26) and Menu
Tree (page 29) 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 26.

2.4GHz Spread Spectrum – This model is equipped with the latest
R/C technology. Unlike AM and FM systems that require frequency
crystals and are prone to frequency conflicts, the TQ 2.4GHz 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-3m is optimized to virtually
eliminate cogging.

Current - Current is a measure of power flow through the

electronics, usually measured in amps. If you look at wire like 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. Electronic speed
controls use power more efficiently than mechanical speed
controls so that the battery runs longer. An electronic speed
control also has circuitry that prevents loss of steering and
throttle control as the battery loses its 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 that allows
extremely high energy density and current handling in a
compact size. These are high performance batteries that require
special care and handling. 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

Applying the Decals

The main decals for your
model have been applied at
the factory. The 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.

8

E-MAXX BRUSHLESS • 9

TRAXXAS TQi RADIO SYSTEM

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

NoNo No

reduce the possibility of developing a “memory” effect and
shortened run times.

NiMH - Abbreviation for nickel-metal hydride. Rechargeable

NiMH batteries offer high current handling, and much greater
resistance to the “memory” effect. NiMH batteries generally
allow higher capacity than NiCad batteries. They can last up to
500 charge cycles. A peak charger designed for NiMH batteries is
required for optimal performance.

Receiver - The radio unit inside your model that receives signals

from the transmitter and relays them to the servos.

Resistance - In an electrical sense, resistance is a measure of how

an object resists or obstructs the flow of current through it.
When flow is constricted, energy is converted to heat and is
lost. Traxxas power systems are optimized to reduce electrical
resistance and the resulting power-robbing heat.

Rotor - The rotor is the main shaft of the brushless motor.

In a brushless motor, the magnets are mounted to the
rotor, and the electromagnetic windings are built into the
motor housing.

Sensored - Sensored refers to a type of brushless motor that

uses an internal sensor in the motor to communicate rotor
position information back to the electronic speed control.

Sensorless - Sensorless refers to a brushless motor that uses

advanced instructions from an electronic speed control to
provide smooth operation. Additional motor sensors and wiring
are not required.

Servo - Small motor unit in your model that operates the

steering mechanism.

Solder Tabs - Accessible, external contacts on the motor that

allows for easy wire replacement.

Transmitter - The hand-held radio unit that sends throttle and

steering instructions to your model.

Trim - The fine-tuning adjustment of the neutral position of the

servos, made by adjusting the throttle and steering trim sliders
on the face of the transmitter.

Thermal Shutdown Protection - Temperature sensing electronics

used in the electronic speed control detect overloading and
overheating of the transistor circuitry. If excessive temperature is
detected, the unit automatically shuts down to prevent damage
to the electronics.

2-channel radio system - The TQ radio system, consisting of

the receiver, the transmitter, and the servos. The system uses two
channels: one to operate the throttle and one to operate
the steering.

Voltage - Voltage is a measure of the electrical potential

difference between two points, such as between the positive
battery terminal and ground. Using the analogy of the garden
hose, while current is the quantity of water flow in the hose,
voltage corresponds to the pressure that is forcing the water
through the hose.

IMPORTANT RADIO SYSTEM PRECAUTIONS

• For maximum range, always point the front of transmitter toward
the model.

• Do not kink the receiver’s antenna wire. Kinks in the antenna wire
will reduce range.

• DO NOT CUT any part of the receiver’s antenna wire. Cutting the
antenna will reduce range.

• Extend the antenna wire in the model as far as possible for
maximum range. It is not necessary to extend the antenna wire out
of the body, but wrapping or coiling the antenna wire should be
avoided.

• Do not allow the antenna wire to extend outside the body without
the protection of an antenna tube, or the antenna wire may get
cut or damaged, reducing range. It is recommended to keep the
wire inside the body (in the antenna tube) to prevent the chance
of damage.

10 • E-MAXX BRUSHLESS

TRAXXAS TQi RADIO SYSTEM

TRANSMITTER AND RECEIVER

Set Button

Red/Green Status LED

see page 27 for more info

Menu Button

Steering
Trim

Multi-Function
Knob

Throttle
Trigger

Throttle Neutral

Adjust

Link
Button

Sensor Expansion

Steering Wheel

Port

LED

MODEL WIRING DIAGRAM

Antenna

Receiver

V/T
V/T

RPM
RPM

BA
B
A

CH5

TT

CH5

T
T
/
/

CH4
CH4

CH3
CH3

CH2
CH2

CH1
CH1

CH1
CH1

S
S

+
+

-

-

V/T - Voltage/Temp Senor Port*
RPM - RPM Sensor Port*
BAT T/

CH5 - Battery/Channel 5*
CH4 - Channel 4*
CH3 - Channel 3*
CH2 - Speed Control
CH1 - Steering Servo
CH1 - Steering Servo

*Not used

Channel 2

Mamba Monster

Electronic Speed Control

Channel 1
Steering Servos

Motor

(Castle 2200Kv)

High-Current
Connector

Wiring Diagram

Mamba Monster Specifications:

Cells ................................. 18 NiCad / NiMH 6s LiPo

Continuous .............More than you can handle!

Resistance...................... 0.0003 Ohms per phase

Brake ......... Proportional with adjustable curve

Reversible ...................................Yes - with lockout

Low Voltage Cutoff ......................Programmable

Case Size .........................................2.2" x 1.9" x 1.4"

Weight with Wires ............................................ 121g

Connector Type ................................6.5mm bullet

Power Switch Battery Compartment

** Accessory sensor port for use with TQi Docking Base (see Traxxas.com and included materials for more information)

E-MAXX BRUSHLESS • 11

TRAXXAS TQi RADIO SYSTEM

If the power indicator doesn’t
light green, check the polarity
of the batteries. Check
rechargeable batteries for
a full charge. If you see any
other flashing signal from the
LED, refer to the chart on page
27 to identify the code.

Use the Right Batteries

Your transmitter uses AA
batteries. Use new alkaline
batteries, or rechargeable
batteries such as NiMH
(Nickel Metal Hydride)
batteries in your transmitter.
Make sure rechargeable
batteries are fully
charged according to the
manufacturer’s instructions.

If you use rechargeable
batteries in your
transmitter, be aware
that when they begin
to lose their charge, they lose
power more quickly than
regular alkaline batteries.

Caution: Discontinue running
your model at the first sign of
weak batteries (flashing red
light) to avoid losing control.

2, 3

12 • E-MAXX BRUSHLESS

INSTALLING TRANSMITTER BATTERIES

Your TQi transmitter uses 4 AA batteries. The battery compartment
is located in the base of the transmitter.

1. Remove the battery
compartment door by
pressing the tab
and sliding the
door open.

2. Remove the
battery holder.
Install the batteries in
the battery holder. Correct
orientation is indicated in the
battery holder. Make sure the battery
holder is plugged into the transmitter.

3. Reinstall the battery door and snap it closed.

4. Turn on the transmitter and check the “ON” LED for a solid green
light. Note: Switching the transmitter on with your mobile device
installed will automatically launch the Traxxas Link application.

TQi Docking Base Battery Charging Jack

The Docking Base incorporates a standard
charging jack for use with optional
Traxxas rechargeable NiMH battery pack
(#3037) and wall charger (#6545)(each sold
separately). Note: The charger and charging
jack will not charge rechargeable AA
batteries installed in the standard 4-cell AA battery holder supplied
with the TQi. Only use the charger and charging jack with the

#3037 Traxxas NiMH battery.

If the status LED flashes red, the transmitter batteries may be
weak, discharged or possibly installed incorrectly. Replace
with new or freshly charged batteries. The power indicator
light does not indicate the charge level of the battery pack
installed in the model. Note: The Docking Base will charge
your mobile device as long as the transmitter is turned on.

CHARGING THE BATTERY PACK (Model #3908)

Your model requires two fully charged battery packs. Two (2)
Traxxas Power Cell NiMH batteries are supplied with your model.

A charger is not included with your model. Traxxas recommends
the #2930 EZ-Peak NiMH charger for quick-charging the included
batteries. See Traxxas.com for more information about chargers
and the EZ-Peak charger. Note: The EZ-Peak charger is NOT

compatible with LiPo batteries.

CHARGING THE BATTERY PACK (Model #3908L)

Before charging the provided 3-Cell LiPo batteries please read an
understand all safety precautions at the beginning of this manual.

The included chargers can be used to charge the provided battery
packs. The supplied charger has an output rate of 800mAh (0.8
amps), and may require up to seven hours to fully charge a battery.
For faster charging, the optional Traxxas EZ-Peak Plus can charge at
up to 6 amps to reduce charging time to an hour or less. WARNING:

ONLY use a charger designed for LiPo batteries. NEVER charge a
LiPo battery using a NiMH charger, or a NiMH charging mode.

1. Insert the AC power cord into the charger.

2. Insert the AC cord into a wall socket (110-240V). All three LEDs
will light steady green and flash red to indicate the charger is
ready to charge.

3. Plug your Traxxas Power Cell 3-cell LiPo into the charger using
its balance plug. All 3 LEDs will glow steady red. Do not leave

battery and charger unattended while charging.

4. This charger is not designed to charge two packs simultaneously.
If two batteries are plugged into the charger at the same time,
the charger will shut down. Unplug the charger and remove any
installed batteries to reset it.

TRAXXAS TQi RADIO SYSTEM

5. When a cell is completely charged, its corresponding LED will
glow steady green. The 3-cell pack is fully charged when all 3
LEDs are steady green to indicate the pack is fully charged.

Note: If the charger detects any of the battery’s cells are already fully
charged when you plug it into the charger, the LEDs corresponding to
the charged cells will not glow steady red and will default to steady
green to indicate those cells are fully charged.

INSTALLING BATTERY PACKS

The included batteries must be fully charged
before installation in the model. The battery
packs should be removed from the vehicle
before charging. Do not leave the battery
unattended while charging.

1. Remove the battery hold-down by
pressing on the release tab and lifting out
the hold-down.

2. Install the battery pack with the battery
wires facing the rear of the model.

3. Insert the tabs of the battery hold-down into
the slots in the rear hold-down retainer (A).
Swing the battery hold down towards the
chassis and snap (lock) the end into the front
hold-down retainer (B).

Using Different Battery Configurations

The battery hold-downs are
capable of accommodating

“25” - Standard stick packs

either side-by-side racing
style packs or the more
common stick packs. The
battery compartments are
configured for stick packs
from the factory. The
number on each side of
the hold down indicates
the battery height in
millimeters that hold-
down can accommodate.
Note that one side is labeled “25” and other side is labeled “23”. The
25mm side is for use with typical stick type battery packs. If you are

Release Tab

“23” - Side-by-side packs

using side-by-side racing packs,

simply flip the hold-down over to the
23mm side and use it on the opposite side of the chassis. Accessory hold
downs and foam (part #3927X) are available to accommodate larger
battery packs. See the 3903 E-Maxx parts list for more information.

25mm side: Standard

NiMH stick pack setup

23mm side: Side-by-side

NiMH pack setup

When using 6-cell battery packs, install the supplied foam block
(spacer) into the front of the battery compartment. The spacers are
located in your instructions package. The spacers are shaped to
conform to the chassis. There is a right and a left. Test fit them to
confirm their location. Remove the backing from the self adhesive
strips and secure them to the front of the battery compartments.

The Traxxas High Current Connector

Your model is equipped with the Traxxas
High-Current Connector. Standard connectors
restrict current flow and are not capable of
delivering the power needed to maximize the
output of the electronic speed control. The
Traxxas connector’s gold-plated terminals with a large contact surfaces
ensure positive current flow with the least amount of resistance. Secure,
long-lasting, and easy to grip, the Traxxas connector is engineered to
extract all the power your battery has to give.

Using the Right Charger

The most convenient type
of charger for charging
the included battery packs
is an AC peak-detecting
charger that plugs directly
into an AC wall outlet, such
as the TRX EZ-Peak™ (Part
#2930). It contains special
peak-detection circuitry
that automatically shuts the
charger off when the battery
is fully charged.

For faster charging, the
included battery may be
charged at 4 amps. The TRX
EZ-Peak is a 4 amp charger
and will charge the included
battery in about 45 minutes!

Caution: Never use a
15-minute timed charger
to recharge your model’s
battery packs. Overcharging
may result, causing damage
to the battery packs.

4

E-MAXX BRUSHLESS • 13

Remember, always turn the
TQi transmitter on first and
off last to avoid damage to
your model.

The following Traxxas High
Current Connector packages
are available from your
hobby dealer. When using
adapters, be careful not to
exceed the current rating of
the Molex connector.

Part #3060
Single Male/Female

Part #3061
Male Charge Adapter

Part #3062
Female Charge Adapter

Part #3080
2-Pack Female

Part #3070
2-Pack Male

5

14 • E-MAXX BRUSHLESS

TRAXXAS TQi RADIO SYSTEM

RADIO SYSTEM

T

U

R

N

R

I

G

H

T

T

U

R

N

L

E

F

T

Neutral

CONTROLS

Brake/Reverse

Forward

RADIO SYSTEM RULES

•

Always turn your TQi transmitter on first and off last. This procedure
will help to prevent your model from receiving stray signals from
another transmitter, or other source, and running out of control. Your
model has electronic fail-safes to prevent this type of malfunction,
but the first, best defense against a runaway model is to always turn
the transmitter on first, and off last.

• Always use new or freshly charged batteries for the radio system.

Weak batteries will limit the radio signal between the receiver
and the transmitter. Loss of the radio signal can cause you to lose

control of your model.

1

Always turn your

transmitter on first.

2

Plug in the batteries.

3

Turn on the model.

In order for the transmitter and receiver to bind to one another,

•
the receiver in the model must be turned on within 20 seconds
of turning on the transmitter. The transmitter LED will flash fast
red indicating a failure to link. If you 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 adjustment is located
on the transmitter face and controls the
forward/reverse travel of the throttle trigger.
Change the adjustment by pressing the
button and sliding it to the desired position.
There are two settings available:

50/50: Allows equal travel for both acceleration and reverse.
70/30: Allows more throttle travel (70%) and less reverse travel (30%).

Note:

We strongly recommend to leave this control in its factory
location until you become familiar with all the adjustments and
capabilities of your model.

position, turn the transmitter off before adjusting the neutral
position. You will need to reprogram your electronic speed control

to recognize the 70/30 setting. Turn to Setup Programming on page
17 for instructions.

Steering Trim

The electronic steering trim located on the
face of the transmitter adjusts the neutral
(center) point of the steering channel.

Multi-Function Knob

The Multi-Function knob can be
programmed to control a variety of functions.
From the factory, the Multi-Function knob
controls steering sensitivity, also known as exponential or “expo.”
When the knob is turned counterclockwise all the way to the left
(default position), expo is off and steering sensitivity will be linear
(the most commonly used setting). Turning the knob clockwise will
“add expo” and decrease the steering sensitivity in the initial range
of steering wheel travel left or right from center. For more detail on
steering exponential, refer to page 16.

To change the throttle neutral adjust

USING THE RADIO SYSTEM

The TQi Radio System has been pre-adjusted at the factory. The
adjustment should be checked before running the model, in case of
movement during shipping. Here’s how:

1. Turn the transmitter switch on. The status LED on the transmitter
should be solid green (not flashing).

Elevate the model on a block or a stand so that all the tires are

2.
off the ground. Make sure your hands are clear of the moving
parts of the model.

3.

Plug the battery packs in the model into the speed control.

4.

Switch the speed control on. You will hear a short sequence of
tones as ALL the LEDs blink. The sequence will then repeat twice
more, then the YELLOW LED will remain illuminated.

5.

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 batteries.

6.

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.

7.

Gently operate the throttle trigger to ensure that you have
forward and reverse operation, and that the motor stops when
the throttle trigger is at neutral. Warning: Do not 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 System

Before each running session with your model, 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.

TRAXXAS TQi RADIO SYSTEM

2.

Have a friend hold the model. Make sure hands and clothing are

clear of the wheels and other moving parts on the model.

3.

Make sure your transmitter antenna is straight up, 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.

• Higher Speeds Require Greater Distance

The faster you drive your model, the more quickly it will near the
limit of radio range. At 60mph, a model can cover 88 feet every
second! It’s a thrill, but use caution to keep your model in range.
If you want to see your model achieve its maximum speed, it
is best to position yourself in the middle of the truck’s running
area, not the far end, so you drive the truck towards and past
your position. In addition to maximizing the radio’s range, this
technique will keep your model closer to you, making it easier to
see and control.

No matter how fast or far you drive your model, always leave
adequate space between you, the model, and others. Never drive
directly toward yourself or others.

TQi Binding Instructions

For proper operation, the transmitter and receiver must be
electronically ‘bound.’ This has been done for you at the factory.
Should you ever need to re-bind the system or bind to an additional
transmitter or receiver, follow these instructions. Note: the receiver
must be connected to a 4.8-6.0v (nominal) power source for binding
and the transmitter and receiver must be within 5 feet of each other.

1. Press and hold the transmitter’s SET button as you switch
transmitter on. The transmitter’s LED will flash red slowly.
Release the SET button

2. Press and hold the receiver’s LINK button as you switch on
the speed control by pressing the EZ-Set button. Release the
LINK button.

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.

Using Reverse: While driving,
push the throttle trigger
forward to apply brakes.
Once stopped, return the
throttle trigger to neutral.
Push the throttle trigger
forward again to engage
proportional reverse.

Automatic Fail-Safe

The TQi transmitter and
receiver are equipped with
an automatic fail-safe system
that does not require user
programming. In the event
of signal loss or interference,
the throttle will return to
neutral and the steering will
hold its last commanded
position. If failsafe activates
while you are operating
your model, determine the
reason for signal loss and
resolve the problem before
operating your model again.

When rechargeable batteries
begin to lose their charge,
they will fade much faster
than alkaline dry cells. Stop
immediately at the first sign
of weak batteries. Never turn
the transmitter off when the
battery pack is plugged
in. The model could run out
of control.

6, 7

E-MAXX BRUSHLESS • 15

TRAXXAS TQi RADIO SYSTEM

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

NoNo No

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
the left 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.

Turning Range

at Transmitter

Effective Turning

Range on Model

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.

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.
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 over tighten or crush the
antenna wire against the chassis.

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

Antenna

Tip

Antenna

Tube

Antenna

Nut Wrench

Antenna

Nut

Antenna

Mount

16 • E-MAXX BRUSHLESS

ADJUSTING THE ELECTRONIC SPEED CONTROL

The Castle Creations Mamba Monster speed control should
not need reprogramming with normal use. However, if you

install a different radio system in your model, or change the
transmitter’s throttle-neutral setting from 50/50 to 70/30, you will
need to reprogram the speed control. Follow these instructions to
reprogram the speed control:

1. Install the batteries of your choice in the battery compartments
and plug the batteries into the speed control.

2. Switch on your transmitter.

3. Hold full throttle while you switch on the Mamba Monster
controller. After a few seconds, you will hear multiple tones and
the RED LED will light.

4. Hold full brake. After a few seconds, you will hear multiple tones
and the YELLOW LED will light.

5. Release the trigger to the neutral position. After a few seconds,
you will hear multiple tones and ALL THE LEDs will light.

6. Wait a few more seconds for the speed control to ‘arm,’ indicated
by a double-tone. You are now ready to drive.

Disconnect Batteries After Use

Always disconnect the batteries from the speed control when
you are finished using your vehicle. The switch on the speed
control only shuts off power to the receiver and servos. The speed
control continues to draw power as long as it is plugged in and
may over-discharge your batteries if they are left connected to the
speed control.

ATTENTION! LiPo Battery Users

The E-Maxx Brushless Edition is programmed at the factory for use
with LiPo batteries. Your model will run properly with NiMH batteries.
To obtain the maximum performance from the included batteries
download the Mamba Monster manual at castlecreations.com for
instructions on de-activating the LiPo voltage cut off. If LiPo batteries
are used be sure to reset the Mamba Monster to the correct LiPo cutoff
voltage for your batteries. Failure to properly reset the Cutoff Voltage
may lead to damage or failure of your LiPo batteries. Never use LiPo

batteries while Low-Voltage Detection is disabled.

For complete operational details for the Castle Creations
Mamba Monster download the Castle Creation Driver’s Ed Guide
at castlecreations.com.

The Power System is NOT
WATERPROOF. Do not
expose the power system
to any type of water,
condensation, or moisture.

Mamba Monster Specs

Cells:

18 NiCad / NiMH 6s LiPo

Continuous:

More than you can handle!

Resistance:

0.0003 Ohms per phase

Brake :

Proportional with
adjustable curve

Reversible:
Yes - with lockout

Low Voltage Cutoff:
Programmable

Case Size:

2.2” x 1.9” x 1.4”

Weight with Wires:

121g

Connector Type:

6.5mm bullet

E-MAXX BRUSHLESS • 17

DRIVING YOUR MODEL

9

18 • E-MAXX BRUSHLESS

Now it’s time to have some fun! This section contains instructions
on driving and making adjustments to your model. Before you go
on, here are some important precautions to keep in mind.

• Allow the model to cool for a few minutes between runs. This
is particularly important when using high capacity battery
packs that allow extended periods of running. Monitoring
temperatures will extend the lives of the batteries and motor.

• Do not continue to operate the model with low batteries or you
could lose control of it. Indications of low battery power include
slow operation and sluggish servos (slow to return to center).
Stop immediately at the first sign of weak batteries. When the
batteries in the transmitter become weak, the red power light
will begin to flash. Stop immediately and install new batteries.

• Do not drive the model at night, on public streets, or in large
crowds of people.

• If the model becomes stuck against an object, do not continue
to run the motor. Remove the 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 radio
interference can cause momentary losses of control, allow a
safety margin of space in all directions around the model in order
to prevent collisions.

• Use good, common sense whenever you are driving your model.
Intentionally driving in an abusive and rough manner will only
result in poor performance and broken parts. Take care of your
model so that you can enjoy it for a long time to come.

• High performance vehicles produce small vibrations which may
loosen hardware over time. Frequently check wheel nuts and
other screws on your vehicle to ensure that all hardware remains
properly tightened.

Slipper Clutch Break-In

The E-Maxx Brushless Edition’s slipper clutch requires a break-in
procedure to ensure consistent operation with the extremely high
power output of the included Castle Creations Mamba Monster
brushless motor system. The slipper clutch has been adjusted to

the correct initial setting for break-in. Follow these steps to ensure
maximum performance and life from your slipper clutch:

1. Make your first runs with the model using the stock gearing and
6- or 7-cell NiMH packs, or 2S LiPo packs.

2. Drive normally. The slipper clutch should slip momentarily
when accelerating aggressively on high-traction surfaces (you
will hear a whirring sound when the slipper clutch allows the
spur gear to slip).

3. If excessive slippage is noticed (slipping that lasts for more
than 3 seconds under hard acceleration), or the slipper clutch
slips anytime the throttle is applied at any lever, stop driving
immediately. Let the slipper clutch cool for 10-15 minutes.
When the clutch is cool, test-drive the vehicle again. If you
still experience excessive slippage, allow the slipper to cool
once more, then tighten the slipper nut ¼ turn (turn the nut
clockwise) and repeat the break-in process. Do not adjust the
slipper clutch before it has cooled.

4. Continue to run the vehicle and monitor slipper clutch
performance as noted above, and readjust if necessary. When the
run is complete, the slipper should be fully broken in.

After break-in, the slipper clutch is ready for any type of driving,
with any batteries up to 6S Lipo. Set the slipper clutch so it only
slips for a moment (if at all) under hard acceleration in high-
traction conditions. If excessive slippage is noticed, stop driving
immediately. Continuing to drive with a loose slipper will cause
damage to the slipper unit. You must let the slipper cool down
to ambient temperature before tightening the slipper nut and
resuming driving.

Make Sure The Axle Nuts Are Tight Before Each Run

Before operating your E-Maxx Brushless
Edition, take a moment to make sure
the axle nuts are tight, as they may have
loosened during shipping. The correct
size axle-nut wrench is supplied with the
truck. Check the tightness of the axle
nuts before each run. The E-Maxx’s high
speed and torque can loosen the nuts
over time if left unchecked.

DRIVING YOUR MODEL

About Run Time

A large factor affecting run time is the type and condition of
your batteries. The milliamp hour (mAh) rating of the batteries
determines how large their “fuel tank” is. A 3000 mAh battery
pack will theoretically run twice as long as a 1500 mAh sport pack.
Because of the wide variation in the types of batteries that are
available and the methods with which they can be charged, it’s
impossible to give exact run times for the model. Another major
factor which affects run time is how the model is driven. Run times
may decrease when the model is driven repetitively from a stop to
top-speed and with repetitive hard acceleration.

Tips for Increasing Run Time

• Use batteries with the highest mAh rating you can purchase.

• Use a high-quality peak-detecting charger.

• Read and follow all maintenance and care instructions provided
by the manufacturer of your batteries and charger.

•

Keep the EVX-2 cool. Get plenty of airflow across the ESC heat sinks.

• Lower your gear ratio. Installing smaller pinion gears will lower
your gear ratio and cause less power draw from the motor and
batteries, and reduce overall operating temperatures. Always
replace both pinion gears together.

• Vary your speed. Continuous high-speed, high-gear running
shortens the run time on the E-Maxx.

• Maintain your model. Do not allow dirt or damaged parts to
cause binding in the drivetrain. Keep the motor clean.

mAh Ratings and Power Output

The mAh rating of the battery can effect your top speed
performance. The higher capacity battery packs experience less
voltage drop under heavy load than low mAh rated packs. The
higher voltage potential allows increased speed until the battery
begins to become discharged.

RECEIVER BOX:

MAINTAINING A WATERTIGHT SEAL

Note: The Power System is NOT WATERPROOF. Do not expose the
power system to any type of water, condensation, or moisture.

Removing and Installing Radio Gear

The unique design of the receiver box allows the removal and
installation of the receiver without losing the ability to maintain a

watertight seal in the box. The patent-pending wire clamp feature
gives you the ability to also install aftermarket radio systems and
maintain the watertight features of the receiver box.

Removing the Receiver

1. To remove the cover, remove the two 3x10mm button-head

cap screws.

2. To remove the receiver from the box simply lift it out and set
to the side. The antenna wire is still inside the clamp area and
cannot be removed yet.

3. Remove the wire clamp by removing the two 2.8x8mm cap screws.

4. Unplug the servo cables from the receiver and remove the receiver.

Receiver Installation

1. Always install the wires into the RX box before installing the receiver.

2. Install the antenna wire and

the servo cables into the
receiver box.

3. Arrange the wires neatly

using the wire guides in the
receiver box. The excess
wire will be bundled inside
the receiver box. Label
which wire is for which channel.

4. Apply small bead of silicone grease

(Traxxas part #1647) to the wire clamp.

5. Install the wire clamp and tighten the

two 2.8x8mm cap screws securely.

6. Install the receiver into the box and plug the wires into

receiver. Refer to page 11 for the wiring diagram.

7. Make sure the clear plastic

light pipe in the receiver
box is aligned above the
LED on the receiver.

8. Make sure the O-ring is

properly seated into the
groove in the receiver box
so that the cover will not
pinch it or damage it any way.

9. Install the cover and tighten the two 3x10mm button-head cap

screws securely.

10. Inspect the cover to make sure that the O-ring seal is not visible.

E-MAXX BRUSHLESS • 19

TUNING ADJUSTMENTS

For easier access to the
rear-most shock mounting
screw, remove the one end
of the rear turnbuckle. In the
front, remove the suspension
pin from the lower front
suspension arm to gain easier
access to the lower shock
mounting screws.

20 • E-MAXX BRUSHLESS

SUSPENSION TUNING

Adjusting the Pivot Ball Caps

The pivot ball caps should be adjusted
so that the pivot balls operate freely in
the axle carriers with no excess play.
Use the provided four-way suspension
multi-tool to tighten or loosen the
pivot ball cap.

Caster Adjustment

The E-Maxx offers the ability to adjust the caster angle of the front
suspension. Caster adjustment may be used to influence the understeer/
oversteer handling characteristics of the E-Maxx. Increasing the caster
angle will increase the tendency of the truck to oversteer (less traction
on the rear tires, more traction on the front tires), while decreasing the
caster angle will cause the truck to have a tendency to understeer (push
in the turns). This effect becomes more pronounced at higher steering
angles and higher spring rates. Caster is adjusted by repositioning the
shims on the pivot point of the upper suspension arms.

Caster adjustment shims (2 Front)

Vertical

4

Ground plane

Caster adjustment shims (1 Front, 1 Rear)

Vertical

Ground plane

7

The stock caster setting is 7-degrees with one shim at each end of the
arm. Reduce the caster angle to 4-degrees by removing the rear shim
and inserting it next to the front shim. The caster angle can be increased
to 10-degrees by removing the front shim and inserting it next to the
rear shim.

Fine Tuning the Shocks

The eight shocks (oil dampers) on your E-Maxx have tremendous
influence on its handling. Whenever you rebuild your shocks, or make
any changes to the pistons, springs or oil, always do it carefully and in
sets (front or rear). Piston head selection depends on the range of oil
viscosities that you have available. For example, using a two-hole piston
with lightweight oil will give you the same damping as a three-hole
piston with heavier oil.

Caster adjustment shims (2 Rear)

10

Ground plane

Vertical

We recommend using two-hole pistons with
a range of oil viscosities from 30W to 50W
(available from your hobby shop). The thinner
viscosity oils (30W or less) flow with less
resistance and provide less damping, while
thicker oils provide more damping. Use only
100% pure silicone shock oil to prolong seal life.
From the factory, the E-Maxx uses 30W oil.

The ride height for the E-Maxx can be adjusted
by adding or removing the clip-on spring pre-
load spacers. Note that changes in ride height
will occur when changes in shock angle or spring
rates are made. You can compensate for ride
height changes by changing the pre-load spacers
on the shocks

Shock Mounting Positions

Big bumps and rough terrain require a softer suspension with the
maximum possible suspension travel and ride height. Racing on a
prepared track or on-road use requires a lower ride height and firmer,
more progressive suspension settings. The more progressive suspension
settings help reduce body roll (increased roll stiffness), dive during
braking, and squat during acceleration.

Upper shock mounting position
(A) should generally be used
with lower shock mounting
positions 1 and 2. Upper shock
mounting position (B) should
be generally be used with lower
shock mounting positions 3 and

4. The innermost upper shock
mounting position (0) can be
used for tuning with the inner
pair of lower shock mounting
positions on the arm (1,2). It
is not compatible with lower
shock mounting positions 3 and

4. Other combinations may be
used to achieve individualized
suspension settings.

0

TUNING ADJUSTMENTS

Lower Shock Mounting Positions

In the out-of-the-box configuration, the shocks are installed in
position (A) on the shock tower and position (2) on the lower
suspension arm. This setting allows for firm suspension and low
ride height, increasing the spring force (at the wheel). This setting
improves high-speed cornering on smoother terrain by lowering the
center of gravity. Body roll, brake dive, and squat are also reduced.

The inner pair of holes on the lower suspension arm should
be used to increase the ride height of the E-Maxx. The more vertical
position of the shocks will allow for lower shock progression and the
soft, plush feel that’s characteristic of a Traxxas Maxx Truck.

Spring rate (at the wheel) increases as the lower shock mounting
position is moved from position (1) to position (4). This is equivalent
to using stiffer springs. Use higher spring rate settings for flatter
terrain with smaller and fewer bumps, and lower spring rate settings
for bigger bumps.

Ride height decreases as the lower shock mounting position is
moved from position (1) to position (4). Each pair of lower shock

Wheel Force vs. Wheel Travel

2.5

2

1.5

Lower Mount 1, Upper Mount 0
Lower Mount 2, Upper Mount 0
Lower Mount 1, Upper Mount A
Lower Mount 2, Upper Mount A
Lower Mount 3, Upper Mount A
Lower Mount 4, Upper Mount A
Lower Mount 1, Upper Mount B
Lower Mount 2, Upper Mount B
Lower Mount 3, Upper Mount B
Lower Mount 4, Upper Mount B

mounting holes (1,2 and 3,4) has equal ride height. Use lower ride
height for high-speed cornering and flat terrain, and when racing on
relatively smooth tracks. Increase the ride height for rougher terrain
and tracks.

Upper Shock Mounting Positions

The upper shock mounting positions will have suspension effects

opposite from the lower shock mounting positions.

Spring rate (at the wheel), increases as the upper shock mounting

position is moved from position (A) to position (B).

Ride height is not affected by changes in the upper shock mounting

position.

Use the chart below to see the effect of the various shock mounting
positions. The horizontal length of the lines indicates the amount of
suspension travel. The angle or slope of the lines indicates the spring
rate (at the wheel).

Lower Mount 4

Lower Mount 3

More Firm

Lower Mount 2

Lower Mount 1

1

Wheel Force (lb)

Less Firm

0.5

0

0102030406070809010

50

Wheel Travel (mm)

E-MAXX BRUSHLESS • 21

TUNING ADJUSTMENTS

To achieve a good starting
point for the slipper clutch,
tighten the slipper clutch
adjusting nut clockwise until
the slipper clutch adjusting
spring fully collapses (do not
over tighten), and then turn
the slipper clutch nut counter­clockwise ¼ to ½ turn.

All of the toe links are installed
on the truck so that the left
hand thread indicators point
to the same direction. This
makes it easier to remember
which way to turn the wrench
to increase or decrease toe link
length (the direction is same
at all four corners). Note that
the groove in the hex indicates
the side of the toe link with the
left-hand threads.

Front of Truck

Left Hand Thread

Indicator

Left Side

Front of Truck

Left Hand Thread

Indicator

Right Side

22 • E-MAXX BRUSHLESS

ALIGNMENT SETTINGS

Adjusting the Toe-in

Your E-Maxx comes from the factory with
zero degrees of toe-in in the front, and
one degree of toe-in in the rear. You can
adjust the toe-in on the front and rear of
the truck. Set the steering trim on your
transmitter to neutral. Next, adjust your
steering turnbuckles so that both front
wheels are pointing straight ahead and
are parallel to each other (0 degrees toe-
in). This will ensure the same amount of
steering in both directions. Adjust the
rear toe control links so that the rear
wheels have 1˚ of toe-in.

Static Camber Adjustment

The wheels can be set to have either
positive or negative camber (see
illustration below). The camber angle changes
as the wheel moves up and down through its
range of travel. Static camber is the camber
angle at the wheel when the vehicle is set at
its normal, stationary ride height.

The suspension pivot balls located in the axle
carriers adjust the static camber. The pivot
balls are protected by blue dust plugs. To
adjust your static camber, insert the supplied

2.5mm hex wrench through the slit in the dust plug and engage the
end of the pivot ball (compressing the suspension until the arms are
parallel to the ground will allow for easier hex wrench engagement).
The upper pivot ball is normally screwed all the way in. Negative
camber is achieved by screwing the pivot ball of the lower control
arm out. Note: When camber is changed, the toe angle of the wheel
has to be reset.

Positive Camber Negative Camber

Right Hand
(Normal) Threads

Left Hand
Threads

Decrease

Length

Increase

Length

Static Camber Base
Factory Settings

Front: 1-degree negative

camber each side
Rear: 1-degree negative
camber each side

TRANSMISSION TUNING

Adjusting the Slipper Clutch

The E-Maxx is equipped with an
adjustable Torque Control slipper
clutch which is built into the large spur
gear. The purpose of the slipper clutch is
to regulate the amount of power sent to
the rear wheels to prevent tire spin. When
it slips, the slipper clutch makes a high-pitch,
whining noise.

To adjust the slipper clutch, remove the rubber
slipper clutch plug on the transmission cover.
The slipper clutch is integrated into the main spur gear on the
transmission. The slipper clutch is adjusted using the spring-loaded
locknut on the slipper shaft. Use the supplied universal wrench.
To tighten or loosen the slipper nut, insert the 2.0mm hex wrench
into the hole in the end of the slipper shaft. This locks the shaft for
adjustments. Turn the adjustment nut clockwise to tighten (less
slippage) and counter-clockwise to loosen (more slippage).

Tighten

Loosen

WHEELS AND TIRES

Many types of aftermarket tires and wheels can be adapted for
use on your model. Most will affect the overall width and the
suspension geometry of the model. The offsets and dimensions
designed into the model’s wheels are intentional; therefore,
Traxxas cannot recommend the use of other non-Traxxas wheels
with different specifications. The diameter of the wheels is an
innovative design, and there is a variety of different tires available
for you to experiment with in addition to the included tires on the
model (listed in your parts list). Experimentation with different
types of tires is recommended to see which ones work the best on
the terrain where the model is run. When selecting tires, consider
the overall diameter and the rubber compound (hard or soft). If
the overall diameter of the tire is significantly increased, you will
need to use a smaller pinion gear to compensate for the larger tire.
Soft compound tires with many short spikes generally work better
on hard, dry surfaces. In loose dirt, a tire with large spikes should
perform better. See your parts list for accessory wheels and tires.

TUNING ADJUSTMENTS

Your Battery Selection and Pinion Gear
Selection Determines Your Speed.

How Fast Do You Want To Go?

Battery

Nominal Voltage

mAh

Skill Level

Battery

Pinion/Spur

Nominal Voltage

mAh

Skill Level

* With Included Optional Gearing
** 24T pinion not included. Optional gearing for high-speed running on smooth surfaces only.

25+mph25+mph

35+mph

35+mph

**

#5608 E-Revo

Brushless Edition

18/6518/65

18/65

18/65

****

16.8V

twin 6-Cell NiMH

(12 cell total)

twin 7-Cell NiMH

(14 cell total)

14.4V

3000+ mAh 4000+ mAh

14.8V

5000+ mAh

twin 3S LiPo

(6S total)

twin 2S LiPo

(4S total)

22.2V

5000+ mAh

twin 3S LiPo

(6S total)

22.2V

5000+ mAh

Your Battery Selection and Pinion Gear
Selection Determines Your Speed.

How Fast Do You Want To Go?

Battery

Nominal Voltage

mAh

Skill Level

Battery

Pinion/Spur

Nominal Voltage

mAh

Skill Level

25+mph28+mph

35+mph

35+mph

**

#3908 E-Maxx

Brushless Edition

18/6517/68

18/65

17/68

****

16.8V

twin 6-Cell NiMH

(12 cell total)

twin 7-Cell NiMH

(14 cell total)

14.4V

3000+ mAh 3000+ mAh

14.8V

5000+ mAh

twin 3S LiPo

(6S total)

twin 2S LiPo

(4S total)

22.2V

5000+ mAh

twin 3S LiPo

(6S total)

22.2V

5000+ mAh

40+mph

50+mph

65mph

& Beyond

18/54 18/65

24/54

40+mph

50+mph

65mph

& Beyond

20/68 17/68

28/65

MOTOR AND GEARING

The E-Maxx is equipped from the factory with a 68-tooth spur gear
and 17-tooth pinion gears. E-Maxx has a large range of gearing
making it suitable for many different types of applications and
environments. If you want more acceleration and less top speed,
use a smaller pinion gear (fewer teeth, higher numerical ratio). The
overall reduction is the number of turns the motor makes for one
revolution of the tire. Higher numerical ratios provide more torque,
lower numerical ratios provide more top speed. Use the following
formula to calculate the overall ratio for combinations not listed on
the gear chart:

# Spur Gear Teeth

# Pinion Gear Teeth

Caution! Operating your model with 65+mph gearing

• The 28/65 ratio for use with 6S LiPo batteries is designed
for maximum speed on smooth surfaces only, with steady
acceleration to full throttle and optional Talon tires installed.

• Do not use this gear ratio for general driving.

• Avoid repetitive starting and stopping.

• Do not use the 28/65 ratio with NiMH batteries or low-capacity
LiPo batteries. 5000mAh LiPo batteries are recommended.

• Allow the motor to cool between runs, and monitor motor
temperature.

• Do not use the 28/65 gear ratio for off-road running or
overheating and damage may result.

x 5.22 = Final Gear Ratio

• Do not allow the motor temperature to exceed 200° F or damage
and motor failure may result.

To accurately monitor motor temperature, Traxxas suggests the
#4091 On-Board Temperature Gauge. The gauge features a large
LCD screen, on/off button for longer battery life, a min/max temp
button, a Centigrade/Fahrenheit button, and a clear Lexan splash
guard. Visit your local dealer or Traxxas.com for more information.

Adjusting Gear Mesh

Incorrect gear mesh is the most
common cause of stripped spur
gears. Gear mesh should be
checked and adjusted anytime
a gear is replaced. Access the
gears by removing the single
screw on the top gear cover.

To set the gear mesh, cut a
narrow strip of notebook paper
and run it into the gear mesh.
Loosen the motor screws and
slide a motor and pinion gear

Motor
Screw

into the spur gear. Retighten the
motor screws and then remove
the strip of paper. Repeat with
the other motor. You should

Strip of

Paper

be able to run a fresh strip of
paper through the gears without
binding them.

Gearing Compatibility Chart:

The chart below shows a full range
of gear combinations. This does NOT
imply that these gear combinations
should be used. Over-gearing
(bigger pinions, smaller spurs) can
overheat and damage the motor
and/or speed control.

Spur Gear

65 68

DNF

DNF

DNF

DNF

4.53

4.25

4.00

3.78

15

16

17

18

19 3.42 3.58

20 3.25

Pinion Gear

3.40

21 3.10 3.24

NR

22

23

24

3.09

NR DNF

NR DNF

Your Battery Selection and Pinion Gear
Selection Determines Your Speed.

How Fast Do You Want To Go?

#3908 E-Maxx

Brushless Edition

Pinion/Spur

Battery

Battery

Nominal Voltage

Nominal Voltage

mAh

mAh

Skill Level

Skill Level

* With Included Optional Gearing
** 28T pinion and 65T spur not included. Optional gearing for high-speed running on smooth surfaces with optional Talon tires only.

25+mph28+mph

18/6517/68

twin 6-Cell NiMH

(12 cell total)

14.4V

3000+ mAh 3000+ mAh

35+mph

35+mph

18/65

17/68

twin 7-Cell NiMH

(14 cell total)

16.8V

40+mph

20/68 17/68

twin 2S LiPo

(4S total)

14.8V

5000+ mAh

**

50+mph

twin 3S LiPo

(6S total)

22.2V

5000+ mAh

65mph

& Beyond

28/65

twin 3S LiPo

(6S total)

22.2V

5000+ mAh

B

Stock gearing

B

Optional included gearing (4S LiPo)

Recommended gearing
for all battery types

****

Recommended gearing
for 4S LiPo only

Not recommended

Does not fit

E-MAXX BRUSHLESS • 23

TUNING ADJUSTMENTS

DUAL STEERING SYSTEM

Your new E-Maxx uses dual-servo steering and a single heavy-duty
servo saver for powerful, responsive steering. To prevent damage
to the steering servos, it is important to make sure that the servos
are “at rest” when the steering is at neutral. If one servo is out of
adjustment, then both servos will work against each other, fighting
to find center.

Center

Drag Link

Servo Horn

Toe Link

Bellcrank

Adjusting the Steering System

1. Disconnect the short

Toe Link

steering link that connects
the servo saver to the servo horn.

2. Remove the drag link that connects the two servo horns.

3. Remove the servo horns.

4. Connect a pair of charged batteries to the ESC. Turn on the
transmitter, then the ESC. Note: It is recommended to unplug
the motor or remove the pinion gears during steering setup.

5. Adjust the steering trim on the transmitter to the
neutral “0” position.

6. Install both servo horns. Make sure they are parallel to the
center line of the chassis (pointing to the rear of the truck).

7. Connect the short steering link from the servo saver to the
servo horn. Make sure the servo saver is parallel to the center

Servo Horn

Servo Saver

line of the chassis (also parallel to the servo horns). If not,
make small adjustments to the length of the link so the
everything is parallel.

8. The steering should operation correctly with equal travel left
and right. Now connect the second servo.

9. Confirm the length of the center drag link (89.5mm - see
template, below).

10. Connect the center drag link to one of the steering servos.
Check for alignment with the holes in the second steering link.
If these do not line up, make small adjustments to the length of
the link until the holes line up.

11. Connect the center drag link to the second steering
servo horn.

12. If necessary, fine tune the length of the center link to eliminate
any load on the steering system in the neutral position.

If you are using aftermarket servos, it is important to use servo
horns designed for E-Maxx. Optional steering servo horns are sold
separately for use with non-Traxxas servos.

24 • E-MAXX BRUSHLESS

Center Drag Link

89.5mm

MAINTAINING YOUR MODEL

Your model requires timely maintenance in order to stay in top
running condition. The following procedures should be taken

very seriously.

Inspect the vehicle for obvious damage or wear. Look for:

1. Cracked, bent, or damaged parts

2. Check the wheels and steering for binding.

3. Check the operation of the shock absorbers.

4. Check the wiring for any frayed wires or loose connections.

5. Check the mounting of the receiver and servo(s) and
speed control.

6. Check the tightness of the wheel nuts with a wrench.

7. Check the operation of the radio system, especially the
condition of the batteries.

8. Check for any loose screws in the chassis structure
or suspension.

9. Inspect the gears for wear, broken teeth, or debris lodged
between the teeth.

10. Check the tightness of the slipper clutch.

11. Check the tightness of the front pivot balls.

Other periodic maintenance:

• Slipper clutch pads (friction material):

Under normal use, the friction material in the slipper clutch
should wear very slowly. If the thickness of any one of the slipper
clutch pads is 1.8mm
or less, the friction disc
should be replaced.
Measure the pad
thickness using calipers
or measuring against
the diameter of the 1.5 and

2.0mm hex wrenches provided
with the model.

• Chassis: Keep the chassis clean of

accumulated dirt and grime. Periodically inspect
the chassis for damage.

• Motor: Every 10-15 runs, remove, clean, and lubricate the motor.
Use a product such as electric motor cleaning spray to flush dirt
out of the motor. After cleaning, lubricate the bushings at each
end of the motor with a drop of light-weight electric motor oil.

• Shocks: Keep the oil level in the shocks full. Use only 100%
pure silicone shock oil to prolong the life of the seals. If you are
experiencing leakage around the top of the shock, inspect the
bladder in the top cap for signs of damage or distortion 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.

• Suspension: Periodically inspect the model for signs of damage
such as bent or dirty suspension pins, bent turnbuckles, loose
screws, and any signs of stress or bending. Replace components
as needed.

• Driveline: Inspect the driveline for signs of wear such as worn
drive yokes, dirty axle half shafts, and any unusual noise or
binding. Remove the gear cover and Inspect the spur gear for
wear and check the tightness of set screws in the pinion gears.
Tighten, clean, or replace components as needed.

Storage

When you are through running the model for the day, blow it off
with compressed air or use a soft bristled paint brush to dust-off
the vehicle. Always disconnect and remove the batteries from the
model whenever the model is stored. If the model will be stored for
a long time, then also remove the batteries from the transmitter.

If you have questions or need technical assistance, call Traxxas at

1-888-TRAXXAS

(1-888-872-9927) (U.S. residents only)

Always wear eye protection
when using compressed
air or spray cleaners and
lubricants.

10

E-MAXX BRUSHLESS • 25

TQi ADVANCED TUNING GUIDE

The model’s TQi transmitter is equipped with the new TQi Docking Base. This
innovative accessory transforms your iPhone® or iPod touch® into a powerful
tuning tool that equips your TQi with an intuitive, high-definition, full-color
graphical user interface.

Traxxas Link

The powerful Traxxas Link app (available in the Apple App Store) gives you
complete control over the operation and tuning of your Traxxas model with
stunning visuals and absolute precision. With the installed Traxxas Link
telemetry sensors on the model, Traxxas Link displays real-time data such as
speed, RPM, temperature, and battery voltage.

Intuitive iPhone and iPod touch interface

Traxxas Link makes it easy to
learn, understand, and access
powerful tuning options. Control
Drive Effects settings such as
steering and throttle sensitivity;
steering percentage; braking
strength; and throttle trim by
simply touching and dragging the
sliders on the screen.

Real-Time Telemetry

With the installed telemetry

Tap and slide to adjust Steering Sensitivity,

Throttle Trim, Braking Percent, and more!

sensors, the Traxxas Link
dashboard comes to life showing
you speed, battery voltage, RPM,
and temperature. Set 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.

The customizable Traxxas Link dashboard delivers

real-time rpm, speed, temperature, and voltage data.

Manage up to 30 Models with Traxxas Link

The TQi radio system automatically keeps track of what vehicles 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 memory. Simply choose a model and any
previously bound transmitter, power them up, and start having fun.

Installing Your Mobile Device (Model 3908L)

The TQi Docking Base has a unique clamping mechanism that allows the

®

Apple

iPhone® and iPod touch® to be easily installed and removed. The
clamp’s self-adjusting design allows it to accommodate the wide variety of
protective cases available for Apple products. Follow these steps to install
your mobile device:

1. Swing the Docking Base Clamp lever from

position A (locked) to position B (unlocked).

2. Install your mobile device by sliding it onto

the connector.

1

A B

3. Ensure your mobile device is parallel with

the Docking Base. Slide the included foam
pads beneath the mobile device so it
is held parallel with the docking base

2

when supported by the pads. The pads
have thicknesses of 1, 2, 3 and 4mm,
choose the best combination for your
device and case, if used. See the chart
to find the correct pad combination
for iPhone and iPod touch models
without accessory cases.

3

4. Make certain your mobile device slides

directly onto the connector when slid
over the foam pads. When you are
satisfied with the fit, peel the backing
from the foam pads and apply them to
the Docking Base.

5. Close the Docking Base Clamp by moving it to position A. Confirm your

mobile device is snug and securely held in place.

Optional: The Docking Base Clamp’s ‘fingers’ have soft gripper pads on them
to hold un-cased devices. If your device is in a soft rubber case, the gripper
pads may be removed for easier device installation and removal.

Foam pad combination recommendations (without accessory cases):
iPod touch 2nd & 3rd Generation 4mm + 3mm (7mm total)

iPod touch 4th Generation 4mm + 3mm + 2mm (9mm total)

iPhone 3GS 3mm + 2mm (5mm total)

iPhone 4 4mm + 3mm + 1mm (8mm total)

or 4mm + 1mm (5mm total)

26 • E-MAXX

TQi ADVANCED TUNING GUIDE

Available Tuning Adjustments

The following items can be adjusted most easily using your mobile
device and the Traxxas Link application. All the features described
below may also be accessed using the menu and set buttons on the
transmitter and observing signals from the LED. An explanation of
the menu structure follows on page 29.

Your Traxxas transmitter has a programmable Multi-Function knob
that can be set to control various advanced transmitter functions
(set to Steering Sensitivity by default, see page 14). Experiment with
the settings and features to see if they can improve your driving
experience.

Steering Percentage (Dual Rate)

The Multi-Function knob can be set to control the amount
(percentage) of servo travel applied to steering. Turning the Multi­Function knob fully clockwise will deliver maximum steering throw;
turning the knob counter-clockwise reduces steering throw (note:
turning the dial counter-clockwise to its stop will eliminate all servo
travel). Be aware that the steering End Point settings define the
servo’s maximum steering throw. If you set Steering Percentage to

TRANSMITTER LED CODES

LED Color / Pattern Name Notes

Solid green Normal Driving Mode See page 14 for information on how to use your transmitter controls.

Slow red (0.5 sec on / 0.5 sec off) Binding See page 15 for more information on binding.

Flashing fast green (0.1 sec on / 0.15 sec off) Throttle Trim Seek Mode

Flashing medium red (0.25 sec on / 0.25 sec off) Low Battery Alarm Put new batteries in the transmitter. See page 12 for more information.

Flashing fast red (0.125 sec on / 0.125 sec off) Link Failure / Error

Programming Patterns

or

Counts out number (green or red) then pauses Current menu position See Menu Tree for more information.

x

Fast green 8 times Menu setting accepted (on SET)

8

Fast red 8 times Menu SET invalid User error such as trying to delete a locked model.

x

8

RECEIVER LED CODES

LED Color / Pattern Name Notes

Solid green Normal Driving Mode See page 14 for information on how to use your transmitter controls.

Slow red (0.5 sec on / 0.5 sec off) Binding See page 15 for more information on binding.

Flashing fast red (0.125 sec on / 0.125 sec off) Fail-Safe / Low Voltage Detect

100% (by turning the Multi-Function knob fully clockwise), the servo
will travel all the way to its selected end point, but not past it. Many
racers set Dual Rate so they have only as much steering throw as
they need for the track’s tightest turn, thus making the car easier to
drive throughout the rest of the course. Reducing steering throw
can also be useful in making a car easier to control on high-traction
surfaces, and limiting steering output for oval racing where large
amounts of steering travel are not required.

Throttle Sensitivity (Throttle Exponential)

The Multi-Function knob can be set to control Throttle Sensitivity.
Throttle Sensitivity works the same way as Steering Sensitivity as
described on page 14, but applies the effect to the throttle channel.
Only forward throttle is affected; brake/reverse travel remains linear
regardless of the Throttle Sensitivity setting.

Steering and Throttle End Points

The TQi transmitter allows you to choose the limit of the servo’s
travel range (or its “end point”) independently for left and right
travel (on the steering channel) and throttle/brake travel (on the
throttle channel). This allows you to fine-tune the servo settings to

Turn the Multi Function knob right or left until the LED stops flashing.
See sidebar for more information.

Transmitter and receiver are no longer bound. Turn the system off and then
back on to resume normal operation. Find source of the link failure (ie out of
range, low batteries, damaged antenna).

Consistent Low Voltage in the receiver triggers Fail-Safe so there is enough
power to center the throttle servo before it completely loses power.

Throttle Trim Seek Mode

When the Multi-Function knob is set to
throttle trim, the transmitter remembers
the throttle trim setting. If the throttle
trim knob is moved from the original
setting while the transmitter is off,
or while the transmitter was used to
control another model, the transmitter
ignores the actual position of the trim
knob. This prevents the model from
accidentally running away. The LED on
the face of the transmitter will rapidly
blink green and the throttle trim knob
(Multi-Function knob) will not adjust the
trim until it is moved back to its original
position saved in memory. To restore
throttle trim control, simply turn the
Multi-Function knob either direction
until the LED stops blinking.

Failsafe

Your Traxxas radio system is equipped
with a built-in failsafe function that
returns the throttle to its last saved
neutral position in the event of a signal
loss. The LED on the transmitter and the
receiver will rapidly flash red.

Starting Over:

Restoring Factory Defaults

When programming your TQi transmitter,
you may feel the need to start over with a
clean slate. Follow these simple steps to
restore the factory settings:

1. Turn transmitter off.

2. Hold both MENU and SET.

3. Turn transmitter on.

4. Release MENU and SET. The
transmitter LED will blink red.

5. Press MENU 3 times. LED will blink red
4 times repeatedly.

6. Press SET to clear settings. The
LED will turn solid green and the
transmitter is restored to default.

E-MAXX BRUSHLESS • 27

TQi ADVANCED TUNING GUIDE

prevent binding caused by the servo moving steering
or throttle linkages (in the case of a nitro car) farther
than their mechanical limits. The end point adjustment
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 Throttle Sub-Trim

The Sub-Trim function is used to precisely set the
neutral point of the steering or throttle servo in the
event that simply setting the trim knob to “zero” does
not completely center the servo. When selected, Sub­Trim allows finer adjustment to the servo output shaft’s
position for precise setting of the neutral point. Always
set the Steering Trim knob to zero before making final
adjustment (if required) using Sub-Trim. If Throttle Trim
has been previously adjusted, the Throttle Trim will
need to be reprogrammed to “zero” before making final
adjustment using Sub-Trim.

Braking Percentage

The Multi-Function knob may also be set to control the
amount of brake travel applied by the servo in a nitro­powered model. Electric models do not have a servo­operated brake, but the Braking Percentage function still
operates the same way in electric models. Turning the
Multi-Function knob full clockwise will deliver maximum
brake throw; turning the knob counter-clockwise reduces
brake throw (Note: Turning the dial counter-clockwise to
its stop will eliminate all brake action).

Throttle Trim

Setting the Multi-Function knob to serve as throttle trim
will allow you to adjust the throttle’s neutral position
to prevent unwanted brake drag or throttle application
when the transmitter trigger is at neutral.
Note: Your transmitter is equipped with a Throttle Trim
Seek mode to prevent accidental runaways. See the
sidebar for more information.

Setting Lock

Once you’ve adjusted all of these settings the way you like
them, you may want to disable the Multi-Function knob

so none of your settings can be changed. This is especially
handy if you operate multiple vehicles with a single
transmitter via Traxxas Link

™

Model Memory.

Multiple Settings and the Multi-Function Knob

It is important to note that settings 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 Steering Sensitivity, the transmitter
will “remember” the Steering Percentage setting.
Adjustments you make to Steering Sensitivity will be
applied to the 50% steering throw 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 still apply.

TRAXXAS LINK MODEL MEMORY

Traxxas Link Model Memory is an exclusive, patent­pending feature of the TQi transmitter. Each time the
transmitter is bound to a new receiver, it saves that
receiver in its memory along with all the settings
assigned to that receiver. When the transmitter and
any bound receiver are switched on, the transmitter
automatically recalls the settings for that receiver. There
is no need to manually select your vehicle from a list of
model memory entries.

Model Lock

The Traxxas Link Model Memory feature can store up
to twenty models (receivers) in its memory. If you bind
a twenty-first receiver, Traxxas Link Model Memory will
delete the “oldest” receiver from its memory (in other
words, the model you used the longest time ago will be
deleted). Activating Model Lock will lock the receiver in
memory so it cannot be deleted.

You may also bind multiple TQi transmitters to the same
model making it possible to pick up any transmitter and
any previously bound model in your collection and simply
turn them on and drive. With Traxxas Link Model Memory,
there is no need remember which transmitter goes with
which model and there is never a need to have to 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. Press and hold MENU. Release when the status LED
blinks green.

3. Press MENU three times. The status LED will blink green
four times repeatedly.

4. Press SET. The status LED will blink green in single­flash intervals.

5. Press SET once. The status LED will blink red
once repeatedly.

6. Press MENU once, the LED will blink red
twice repeatedly.

7. Press SET, the LED will blink rapidly green.
The memory is now locked. Press MENU and SET to
return to driving mode.

Note: To unlock a memory, press SET twice at step 5.

The LED will blink rapidly green to indicate the model
is unlocked. To unlock all models, press MENU twice at
step 6 and then press SET.

To delete a model:

At some point, you may wish to delete a model you no­longer 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 three times. The status LED will blink green
four times repeatedly.

4. Press SET once. The status LED will blink green
once repeatedly.

5. Press MENU once. The status LED will blink green
twice repeatedly.

6. Press SET. The memory is now selected to be deleted.

Press SET to delete the model. Press and hold MENU to
return to driving mode.

28 • E-MAXX BRUSHLESS

TQi ADVANCED TUNING GUIDE

MENU TREE

The menu tree below shows 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.

MENU: When you enter a menu, you always start at the

top. Press MENU to move down the menu tree.
When you reach the bottom of the tree, pressing
MENU again will return you to the top.

SET: Press SET to move across the menu tree and select

options. When an option is committed to the
transmitter’s memory, the status LED will rapidly
blink green.

BACK: Press both MENU and SET to go back one level in

the menu tree.

EXIT: Press and hold MENU to exit programming.

Your selected options will be saved.

ECHO: Press and hold SET to activate the “echo” function.

Echo will “play back” your current position on the
Menu Tree, should you lose your place. For example:
If your current position is Steering Channel End
Points, holding SET will cause the LED to blink green
twice, green once, and then red three times. Echo
will not alter your adjustments or change your
position in the programming sequence.

Below is an example of how to access a function in the menu
tree. In the example, the user is setting the Multi-Function knob
to be a steering Dual Rate control.

To set the Multi-Function knob to control STEERING DUAL RATE (%):

1. Switch the transmitter on

2. Press and hold MENU until the green LED lights. It will blink in single
intervals.

3. Press SET. The red LED will blink in single intervals to indicate Steering
Dual Rate has been selected.

4. Press MENU twice. The red LED will blink three times repeatedly to
indicate Steering Percentage has been selected.

5. Press SET to select. The green LED will blink 8 times fast to indicate
successful selection.

6. Press and hold MENU to return to driving mode.

Restoring Factory Defaults:

Transmitter

OFF

Hold both

MENU and SET

Transmitter ONRelease MENU and

SET. Red LED blinks

Press MENU once.

Red LED

blinks twice

Enter Programming

Press and hold
MENU for 3 seconds

Multi-Function Knob

1

One Blink Green

Press

MENU

Channel Setup

2

Two Blinks Green

Press

MENU

Mode Selection

3

Three Blinks Green

Press

MENU

Traxxas-Link

4

Four Blinks Green

Press SET to clear settings. LED will turn

solid green. Transmitter is restored to default

Press

SET

Press

SET

Press

SET

Press

SET

Press MENU to move through options.
Press SET to select an option.

Steering Sensitivity (Expo)

1

One Blink Red

Throttle Sensitivity (Expo)

2

Two Blinks Red

Steering % (Dual Rate)

3

Three Blinks Red

Braking %

4

Four Blinks Red

Throttle Trim

5

Five Blinks Red

Knob Disabled

6

Six Blinks Red

Steering (Channel 1)

1

One Blink Green

Press

MENU

Throttle (Channel 2)

2

Two Blinks Green

Press SET to select an option.

Electric

1

One Blink Red

Press

MENU

Nitro

2

Two Blinks Red

Model Locking

1

One Blink Green

Press

MENU

Delete Model

2

Two Blinks Green

Press

SET

Press

SET

Press

SET

Press

SET

Note: The transmitter is “live” during programming
so you can test the settings real time without having
to exit the menu tree.

Press MENU to move through options.
Press SET to select an option.

Servo Reversing

1

One Blink Red

Sub Trim

2

Two Blinks Red

End Points

3

Three Blinks Red

Turn left to desired endpoint and press set to save.
To reset max throw: Let go of controls and press SET.

Reset End Points

4

Four Blinks Red

Servo Reversing

1

One Blink Red

Sub Trim

2

Two Blinks Red

End Points

3

Three Blinks Red

forward to desired endpoint and press set to save.
To reset max throw: Let go of controls and press SET.

Reset End Points

4

Four Blinks Red

Unlock

1

One Blink Red

Lock

2

Two Blinks Red

Unlock All

3

Three Blinks Red

Confirm Deletion

1

E-MAXX BRUSHLESS • 29

One Blink Red

Press SET to reverse
servo direction.

Use knob to adjust
sub-trim. Press SET to save.

Use steering wheel to
adjust. Turn right to desired
end point, press set to save.

Press SET to restore
factory default endpoints.

Press SET to reverse
servo direction.

Use knob to adjust sub­trim. Press SET to save.

Use trigger to adjust. Pull
back to desired end point,
press set to save. Push

Press SET to restore
factory default endpoints.

TQi ADVANCED TUNING GUIDE

Set Multi-Function
knob for STEERING
SENSITIVITY (Expo)

Set Multi-Function
knob for THROTTLE
SENSITIVITY (Expo)

Set Multi-Function
knob for STEERING
DUAL RATE (%)

Set Multi-Function
knob for BRAKING
PERCENTAGE (%)

Set Multi-Function
knob for
THROTTLE TRIM

To LOCK the
Multi-Function knob

To REVERSE
the direction of
STEERING servo

To set the SUB TRIM
of the STEERING
servo

To set the END
POINTS of the
STEERING servo

To reset the END
POINTS of STEERING
servo to defaults

To REVERSE
the direction of
THROTTLE servo

To set the SUB TRIM
of the THROTTLE
servo

To set the END
POINTS of the
THROTTLE servo

To reset the END
POINTS of THROTTLE
servo to defaults

30 • E-MAXX BRUSHLESS

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press/hold MENU

green LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

x

Press MENU

green LED blinks (x2)

Press SET to confirm

green LED blinks (x8)

Press MENU to confirm

red LED blinks (x2)

Press MENU twice

red LED blinks (x3)

Press MENU 3 times

red LED blinks (x4)

Press MENU 4 times

red LED blinks (x5)

Press MENU 5 times

red LED blinks (x6)

2

2

2

2

2

2

2

2

Press SET

green LED blinks

Press SET

green LED blinks

Press SET

green LED blinks

Press SET

green LED blinks

Press SET

green LED blinks

Press SET

green LED blinks

Press SET

green LED blinks

Press SET

green LED blinks

x

8

returns to driving mode

x

2

x

3

x

4

x

5

x

6

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press MENU

Press MENU

Press MENU

Press MENU

x

x

x

x

x

x

x

x

x

Press/hold MENU

Press SET to select

green LED blinks (x8)

Press SET to select

green LED blinks (x8)

Press SET to select

green LED blinks (x8)

Press SET to select

green LED blinks (x8)

Press SET to lock

green LED blinks (x8)

green LED blinks (x2)

green LED blinks (x2)

green LED blinks (x2)

green LED blinks (x2)

8

Press/hold MENU

returns to driving mode

8

Press/hold MENU

returns to driving mode

8

Press/hold MENU

returns to driving mode

8

Press/hold MENU

returns to driving mode

8

Press/hold MENU

returns to driving mode

Press SET to reverse

red LED blinks (x2)

Press MENU twice

red LED blinks (x3)

Press MENU 3 times

red LED blinks (x4)

2

2

2

2

servo direction

Press MENU

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

Press SET

red LED blinks

x

8

x

2

x

3

x

4

Adjust the Multi-

Function knob until the

LED turns solid green.

Press/hold MENU

returns to driving mode

Use Multi-Function

knob to set neutral

Turn steering

wheel to desired max

left and right travel

x

Press SET

to reset end points

x

Press SET to reverse

servo direction

x

Press MENU

red LED blinks (x2)

x

Press MENU twice

red LED blinks (x3)

x

Press MENU 3 times

red LED blinks (x4)

to save each position

8

returns to driving mode

8

returns to driving mode

2

Use Multi-Function

knob to set neutral

3

trigger to set desired
max throttle or brake

4

green LED blinks (x8)

MENU TREE FORMULAS

To select functions and make adjustments to the TQi transmitter without
referencing the menu tree, turn your transmitter on, find the function in the
left column you wish to adjust, and simply follow the corresponding steps

.

1

Always turn your

transmitter on first.

x

8

Press SET

to save position

Press SET

Press/hold MENU

Press/hold MENU

Use throttle

Press SET

x

8

x

8

Press/hold MENU

returns to driving mode

Turn steering wheel

to test settings

x

Press SET

to save position

Press SET to save

Use trigger to test

Press/hold MENU

returns to driving mode

IF END POINTS

Press/hold MENU

returns to driving mode

8

Press/hold MENU

returns to driving mode

IF END POINTS

Press/hold MENU

returns to driving mode

ARE OK:

ARE OK:

IF END POINTS

NEED TO BE

CHANGED:

Press SET

and repeat steps 6-8

IF END POINTS

NEED TO BE

CHANGED:

Press SET

and repeat steps 7-9

1100 Klein Road, Plano Texas 75074

1-888-TRAXXAS

120917 3908OM-LN-EN-R00

owners manual