Traxxas E-Maxx 3906 User manual

E-Maxx
Owner
’
s
Manual
Model
3906
Traxxas Corporation, 1100 Klein Road, Plano, Texas 75074, Phone: [phone], Toll-free 1-888-TRAXXAS
Traxxas U.K., P.O. Box 1128, Winterbourne, Bristol BS17-2SH, England, Phone: [phone]
Internet: www.Traxxas.com, www.T-Maxx.com

Traxxas
Corporate Headquarters
1100 Klein Road
Plano, Texas 75074
Phone:[phone]
Toll-free 1-888-TRAXXAS
Traxxas U.K.
P. O. Box 1128
Winterbourne, Bristol BS17-2SH
England
Phone: [phone]
Internet
www.Traxxas.com
www.MaxxTrucks.com
E-mail: [e-mail]
Entire contents ©2002Traxxas.Traxxas,E-Maxx,
TQ-3, and ProGraphix are trademarks or registered trademarks
of Traxxas Corporation. 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.
020823
2

Introduction
Thank you for purchasing the Traxxas E-Maxx, and congrat-
ulations on owning what we believe is the most advanced, most
powerful electric monster truck available.This sophisticated
truck incorporates many special features including 4 wheel
drive, shift on the fly two-speed transmission, twin Titan 550
motors, and the powerful EVX electronic speed control. This
manual contains the instructions you will need to operate, and
maintain your E-Maxx so that you can enjoy it for years to come.
Please read all of the Operating Instructions and Precautions
before attempting to drive the E-Maxx. Even if you are an
experienced R/C enthusiast, continue reading to learn about the
best ways to use E-Maxx’s unique features. Also, please pay
special attention to the mechanical and safety precautions
outlined in the manual to avoid any chance of injury to you or
damage to the truck.
4Before You Proceed
5Safety Precautions
6Tools, Supplies
and Required
Equipment
7Anatomy of the
E-Maxx
8Quick Start: Getting
Up to Speed
9Gluing the Tires
10 Decorating
Your E-Maxx
11 The Traxxas TQ-3
Radio System
21 Driving the E-Maxx
22 Adjusting
Your E-Maxx
28 Maintaining
and Storing
Your E-Maxx
29 Trouble Shooting
Your E-Maxx
30 Index
3

Before You Proceed
Carefully read and follow all instructions in this and any
accompanying materials to prevent serious damage to your
E-Maxx. Failure to follow these instructions will be considered
abuse and/or neglect.
Before running your E-Maxx, look over this entire manual, and
examine the truck carefully. If for some reason you decide the
E-Maxx is not what you wanted, then do not continue any
further. Your hobby dealer absolutely cannot accept an
E-Maxx for return or exchange after it has been run.
Warnings, helpful hints, and 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 E-Maxx 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 E-Maxx 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 8:30
am to 9:00pm central time.Technical assistance is also available
at www.Traxxas.com.You may also e-mail customer support
with your question at [e-mail]. Join thousands of
Traxxas R/C enthusiasts in our online community at
www.ReadyToRun.org
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, or you can save
shipping and handling costs by purchasing them from your
local hobby dealer.
4

All of us at Traxxas want you to safely enjoy your new E-Maxx.
Operate your E-Maxx sensibly and with care, and it will be
exciting, safe, and fun for you and those around you. Failure to
operate your E-Maxx 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
The truck 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 truck in crowds
of people.The truck is very fast and could cause injury if
allowed to collide with anyone.
Because the truck 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 motors, batteries, and speed control can become hot
during use. Be careful to avoid getting burned.
Don’t operate your E-Maxx 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.
▼▼▼ ▼ ▼ ▼
All instructions
and precautions
outlined in this
manual should be strictly
followed to ensure safe
operation of your E-Maxx.
The E-Maxx is not
intended for use
by those under 16
years of age without the
supervision of a
responsible and
knowledgeable adult.
5
Safety Precautions

Tools, Supplies, and Required Equipment
Your E-Maxx 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.
For more info on
batteries, see Use
the Right Batteries
on page 13.
A peak-detecting
charger is
recommended for
best performance and
longest battery life. For
more information, see
Use the Right Charger on
page 14.
7-Cell Operation:
Your E-Maxx can use
(2) 8.4-Volt 7-cell
battery packs. Using 7-cell
batteries will allow the
E-Maxx to achieve 30+ MPH
speeds. The packs must be
specially made to fit the
E-Maxx chassis. Go to
www.Traxxas.com/7cell to
learn how to make 7-cell
battery packs for the
E-Maxx.
8 AA alkaline batteries for the radio system
Two 7.2-volt NiCad battery packs
NiCad battery charger
TRAXXAS
1.5mm hex wrench
2.0mm hex wrench
Universal (glow plug) wrench
Turnbuckle wrenches
Batteries
Supplied Tools
Your E-Maxx comes with these specialty metric tools:
Other Required Tools and Supplies
Thin, hobby-quality cyanoacrylate
instant tire glue (often called CA glue)
Safety glasses
#2 Phillips screwdriver
#1 Phillips screwdriver
Small flat-blade screwdriver (1/8 inch blade)
Hobby knife
6
U-Joint wrench
4-way wrench

Anatomy of the E-Maxx
Receiver
Steering
Servo
Suspension
Arm (upper)
Bumper
(Front)
Bumper
Mount
Skid Plate
(rear)
Cross-brace
Shock
(Oil Damper)
Turnbuckle
Transmission
Bulkhead
Shock
Tower
Body
Mount
Spur
Gear
Cover
Chassis
7
Slipper
Clutch
Half Shaft On/Off
Switch
Antenna
Mount
Shifting
Servo
Battery
Compartment
Battery
Hold-Down
Electronic Speed
Control(EVX)
Motor
(Titan)
Differential

The following guide is an overview of the
procedures for getting your E-Maxx running.
Refer to the pages indicated for details on each step. Look for the
Quick Start logo on the bottom corners of Quick Start pages.
1. Charge the battery packs • See sidebar, page 14
The E-Maxx requires two fully charged 7.2-volt
battery packs (not included).
2. Glue the tires • See page 9
Glue the tires to the rims to prevent the rims
from spinning inside the tires.
3. Install the antenna • See page 15
Install the antenna mast in the E-Maxx.
4. Install batteries in the transmitter • See page 13
The TQ-3 transmitter requires 8 AA alkaline batteries.
5. Install battery packs in the model • See page 14
6. Turn on the radio system • See page 18
Make a habit of turning the transmitter on first, and off last.
7. Check servo operation • See page 19
Make sure the throttle, steering, and shifting servos are
working correctly.
8. Range test the radio system • See page 20
Follow this procedure to make sure your radio system
works properly at a distance and that there is no
interference from outside sources.
9. Decal and Install the body • See page 10
10. Drive your E-Maxx • See page 21
Driving tips and adjustments for your E-Maxx
11. Maintaining your E-Maxx • See page 28
Follow these critical steps to maintain the performance
of your E-Maxx and keep it in excellent running
condition.
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 E-Maxx.
Quick Start: Getting up to Speed
8

The tires on your E-Maxx must be glued to the rims using CA
tire glue to prevent the rims from spinning inside the tires.You
can glue the tires without removing the wheels from the truck.
For clarity, these instructions show the process with the wheels
removed.
1. Remove a wheel from the
E-Maxx using the larger
(8mm) end of the glow plug
(universal) wrench.
2. Use your thumb to push the
side of the tire away from the
rim. Place one or two drops of
CA glue into the opening and
release the tire. Capillary
action will draw the glue
around the bead of the tire.
3. Repeat step two at four or five points around the rim, until the
tire is completely secured to the rim.Turn the rim over and
repeat the process for the inside of the rim/tire. Repeat for the
other 3 wheels.
4. Reinstall the wheels, making
sure none of the axle pins
have fallen out from behind
the hex hubs.
Always wear safety
glasses to prevent
glue from splattering
into your eyes.
The acetone in
fingernail polish
remover will
remove excess glue from
your fingers.
Gluing The Tires
9
Hub
Axle Pin

Decorating Your E-Maxx
Applying The Decals
The ProGraphix painted
body is covered with a
protective film for shipping.
You must remove this film
before applying any decals.
To remove the film, lift a
corner of the film and
carefully pull it off the body
in one continuous piece.
Your E-Maxx decals are die-
cut for easy removal. Use a
hobby knife to lift the
corner of a decal and lift it
from the backing.
Carefully position the decal
over the desired location
and press one side on the
body. Pull the decal tight
and use a finger to gradually
smooth out any air bubbles
as you apply the decal.
Look at the photos on the box for typical decal placement.
10

11
The Traxxas TQ-3 Radio System
CH.3 CH.2 CH.1
Antenna
Throttle Neutral Adjust
Steering Wheel
Throttle Trim
Steering Trim
Low/High
Gear Selector
Switch
Power Switch Power Indicator
Battery Compartment
Servo
Reversing
Switches
Throttle Trigger
Your E-Maxx (model 3906) is equipped with the TQ-3 Radio
System.The TQ-3 is a 3-channel system that provides high-power
output up to a quarter mile and control for up to three servos.
The E-Maxx uses two servos and an electronic speed control.
E-Maxx Wiring
Diagram
TQ-3 Transmitter
Antenna
Receiver
Channel 1
Steering
Servo
Channel 3
Shifting
Servo
On/Off
Switch 7.2v
Battery
Connections
Channel2
EVX Electronic
Speed Control
Channel 3
Channel 2
Channel 1

Radio System Terminology
Please take a moment to familiarize yourself with these radio-
system terms.They will be used throughout this manual.
Channel - The 27 MHz frequency band is divided into 6
channels so that up to six models can be operated
simultaneously. Each channel is referred to by its flag color and
channel number, as shown below.
Clearing your frequency - A routine, verbal check to make sure
nobody else in your area is operating on the same channel.
Always clear your frequency by calling out your channel
number before operating your model. Wait or move to
another area if your channel is already being used.
Crystal (X-tal) - The plug-in device that determines which
channel the radio system will operate on. For each channel,
there are two crystals, one for the receiver and one for the
transmitter. Of those two crystals, the one marked with the
lower number (.455 MHz lower) must be inserted into the
receiver.
ESC (Electronic Speed Control) - An electronic speed control is
the electronic motor control inside the model. An ESC uses
MOSFET power transistors to provide precise, digital
proportional throttle and braking control. Electronic speed
controls use power more efficiently than mechanical speed
controls so that the batteries run longer. An electronic speed
control also has circuitry that prevents loss of steering and
throttle control as the batteries lose their charge.
Frequency band - The radio frequency used by the transmitter
to send signals to your E-Maxx. All Traxxas RTR models operate
on a 27 MHz frequency band.
Neutral position - The standing position that the servos seek
when the transmitter controls are at the neutral setting.
NiCad - Refers to rechargeable, nickel-cadmium batteries. The
most economical choice, since they may be recharged up to
500 times.
Receiver - The radio unit inside your E-Maxx that receives
signals from the transmitter and relays them to the servos.
Servos - Small motor units in your E-Maxx that operate the
shifting and steering mechanisms.
Three-channel radio system - The TQ-3 radio system,
consisting of the receiver, the transmitter, and the servos.The
system uses three channels: one to operate the steering, one
to operate the ESC (throttle/brakes) and a third channel to
control shifting.
Transmitter - The hand-held radio unit that sends throttle and
steering instructions to your E-Maxx.
Trim - The fine-tuning adjustment of the neutral position of the
servos, made by turning the throttle and steering trim knobs
on the face of the transmitter.
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.
Smart Braking™- Trademark name for technology developed
by Novak Electronics that allows the same throttle trigger
motion to control both braking and reverse functions.The EVX
speed control senses how fast the model is running and
applies the brakes to slow the model. Once stopped, reverse is
applied.
Channel Frequency Band Flag Color Traxxas Part No.
1 26.995 Brown 2031
2 27.045 Red 2032
3 27.095 Orange 2033
4 27.145 Yellow 2034
5 27.195 Green 2035
6 27.255 Blue 2036
The Traxxas TQ-3 Radio System
12

13
The Traxxas TQ-3 Radio System
2. Install the batteries in the correct orientation as
indicated in the battery compartment.
3. Reinstall the battery door and snap it closed.
4. Turn on the transmitter and check the power indicator
for a solid red light.
If the power indicator light flashes, then the transmitter
batteries are 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 receiver batteries in the model.
Use the Right Batteries
Your transmitter uses AA
batteries. Use new alkaline
batteries, or rechargeable
batteries such as NiCad or
Ni-MH (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 much more quickly than
regular alkaline batteries.
Caution: Discontinue running
your E-Maxx at the first sign of
weak batteries (flashing red
light) to avoid losing control.
If the power indicator
doesn’t light red, check
the polarity of the
batteries. Check rechargeable
batteries for a full charge.
CH.3 CH.2 CH.1
Thermal Shutdown Protection – Temperature sensing
electronics are used in the ESC to detect overloading and
overheating of the transistor circuitry. If excessive temperature
is detected, the unit automatically shuts down to prevent
damage to the electronics.
One-Touch Setup™- Novak Electronics trademark name for
circuitry inside the EVX electronic speed control that allows it
to adjust to the transmitter settings by pressing a button on
the speed control and operating the transmitter controls (see
page 26 for instructions).
Polar Drive Circuitry™-Trademark name for technology
developed by Novak Electronics that allows the EVX speed
control to operate more efficiently at part throttle, and
recharge the batteries during braking (regenerative braking).
This results in cooler running, increased power handling, and
longer run times.
Installing Transmitter Batteries
Your TQ-3 transmitter uses 8 AA batteries.The battery
compartment is located at the base of the transmitter.
1. Remove the battery compartment door by pressing the tab
and lifting the door up.

Installing Battery Packs
The E-Maxx requires two fully charged 7.2 volt NiCd or NiMH
battery packs. Do not run the E-Maxx with just one battery.
These batteries are not included with the model.You can use
either side-by-side racing style packs or the more common stick
packs.The battery compartments on the E-Maxx are designed to
handle both. The E-Maxx’s run time is greatly affected by the
milliamp hour (mAh) rating of the batteries. A 3000 mAh battery
pack will theoretically run twice as long as a 1500 mAh sport
pack. Follow the charger manufacturer’s directions for charging
and caring for your battery packs.
The battery compartments are configured for stick packs from
the factory. If you are using side-by-side racing packs, then you
will need to reconfigure the battery hold downs as shown:
Stick packs
1. Remove the body clip securing the battery hold down. Lift
the end of the hold down and swing it out.
2. Slide the battery pack in place. Swing the hold down back in
and over the post.
3. Secure it with the body clip. Use the upper hole in the post.
Repeat for the other pack.
Side-by-side packs
When using side-by-side packs, the battery retainer must be
completely removed and flipped over.
1. Remove the shoulder screw which acts as the hinge for the
battery retainer. Replace the shoulder screw with the
supplied metal post (found in your instruction manual
packet).
2. Install the batteries in the compartment and then place the
battery hold down over the posts with the flat side facing up.
3. Secure the battery hold down with body clips in the lower
holes in the posts.
Use the
Right Charger
The most convenient
type of charger is an AC
peak-detecting charger that
plugs directly into an AC wall
outlet. It contains special
peak-detection circuitry that
automatically shuts the
charger off when the battery
is fully charged.
If you’re using a 15-minute
timed charger, always fully
discharge the battery pack
before each charge. Some
high mAh battery packs
(1500 mAh or higher) require
more than the standard 15
minutes of charge time. If the
battery pack is cold after 15
minutes of charging, add
another 5 minutes of charge
time. Closely monitor the
battery pack and stop
charging it when it begins to
feel warm to the touch. Never
leave a battery charging
unattended. Always follow
charger manufacturer’s
instructions.
If the radio system
doesn’t appear to
work when the
transmitter and model
switches are turned on,
check for correct battery
installation.
The Traxxas TQ-3 Radio System
14 Using stick packs
Using side-by-side packs
See page 25 for information about installing 7-cell (8.4 volt)
battery packs in the E-Maxx.

The Traxxas TQ-3 Radio System
15
Spray a little window
cleaner on the
antenna wire to
make it easier to push
through the antenna tube.
Don’t shorten the
length of the
antenna wire. Its
length is tuned to the
frequency band; cutting it
could severely shorten the
radio system’s range.
Don’t push the
transmitter antenna
down from the top.
Pull it down from the
bottom, one segment at a
time, to prevent binding and
kinking the antenna mast.
Setting Up the Antenna
You must install the antenna mast (tube) before you operate
your E-Maxx.You’ll find the plastic antenna tube and tip in the
bag with your manuals and documentation.
1. Locate the black antenna wire that exits the receiver. The
E-Maxx receiver is mounted in the front of the chassis.
2. Pull the wire straight with your fingers and then insert the
end of the wire into one end of the antenna tube. Push the
wire all the way through the antenna tube.
3. Pull the remaining wire through the antenna tube, and then
insert the base of the antenna tube into the molded post on
the chassis.
4. Fold the remaining antenna wire over the top of the tube
and secure it with the antenna tip.
5. On the transmitter, always fully extend the telescoping
antenna when running your E-Maxx. Make a habit
of holding the transmitter so that the antenna points
straight up.
Antenna Tip
Antenna Tube

The Traxxas TQ-3 Radio System
CH.3 CH.2 CH.1
ACCELERATE BRAKE/REVERSE
L
E
F
T
NEUTRAL
R
I
G
H
T
TQ-3 Radio System Controls
16
Shifting
When the shift button on the handle is in the up position the
E-Maxx is in low gear. Normal operation is to start off in low gear
and when maximum motor RPM is reached, push the button
down to select high gear and continue accelerating. In order for
the transmission to shift, the throttle must be released
momentarily to take the load off of the transmission.This is
necessary since the transmission does not use a clutch.You may
downshift from high to low gear at any time. Often
downshifting serves as effective braking. The throttle must
momentarily be released to allow the transmission to downshift
as well.
Use common sense to protect the inner workings of your
transmission. Don’t try to shift from high to low while at the
same time switching from forward to reverse. Performing only
one operation at a time will reduce the chance of damaging
your transmission.
When changing from reverse to forward, there is no delay. Avoid
doing reverse to forward "slams." Continuous abuse of this type
could result in damage to your speed control or transmission.
LOW
GEAR
HIGH
GEAR

The Traxxas TQ-3 Radio System
17
TQ-3 Radio System Adjustments
In addition to the electronic throttle and steering trim controls,
your radio system features throttle neutral adjustment and
servo reversing switches.
Throttle Neutral Adjustment
The throttle neutral adjustment is located on the transmitter
face and controls the forward/brake 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 braking.
70/30: Allows more throttle travel (70%) and less
brake travel (30%).
50/50 is the recommended setting for the E-Maxx.
Electronic Throttle Trim
The electronic throttle trim located on the face of the
transmitter adjusts the neutral (center) point of the throttle
trigger signal to the electronic speed control.This control has
been preset for you at the factory. If the motors run when the
truck (EVX) is switched on, then turn the throttle trim control on
the transmitter until the wheels stop. If anything more than a
slight adjustment of the throttle trim control is required, then
you should readjust your speed control. Refer to the
Adjustments section on pages 25 and 26.
Electronic Steering Trim
The electronic steering trim located on the face of the
transmitter adjusts the neutral (center) point of the steering
servo when the servo is at rest. Adjust this control to make the
model drive straight with no steering input at the wheel.
Servo Reversing Switches
On the front of the transmitter there are three switches, one for
throttle, one for steering, and one for shifting. Moving the
switches reverses the direction of the servo. For example, if you
turn your steering wheel right and the model moves left, then
switch the steering servo reversing switch to correct the servo
direction. The electronic trim may need readjustment after
moving the switches.
▼▼
CH.3 CH.2 CH.1
Channel Servo
1Steering
2Throttle
3Shifting

TQ-3 Radio System Rules
Each time you prepare to run your
E-Maxx, you must clear your frequency
to be sure no one else in the area is
using the same channel as you.
There are six possible channels,
numbered 1 through 6. Each is
represented by a color. Look at the
crystal plugged into the back of your
transmitter to determine which channel
your truck is assigned to.
Always turn your TQ-3 transmitter on first and off last. This
procedure will help to prevent your E-Maxx from receiving
stray signals from another transmitter, or other source, and
running out of control.
Always have the transmitter turned on before you plug in
the battery packs in the model.
Always use new or freshly charged batteries for the radio
system. Weak batteries will limit the range of the radio signal
between the receiver and the transmitter. Loss of the radio
signal can cause you to lose control of your E-Maxx.
▼
▼▼ ▼
Channel 1
Brown
Channel 2
Red
Channel 3
Orange
Channel 4
Yellow
Channel 5
Green
Channel 6
Blue
CH.3 CH.2 CH.1
12
Remember, always
turn the TQ-3
transmitter on first
and off last to avoid
damage to your E-Maxx.
Your EVX
electronic speed
control was set up
with the radio from the
factory. It is possible for
the throttle trim control
on the transmitter to have
moved during transit or
while handling the
transmitter. If the motors
run when the truck (EVX)
is switched on, then turn
the throttle trim control
on the transmitter until
the wheels stop. If
anything more than a
slight adjustment of the
throttle trim control is
required, then you should
readjust your speed
control. Refer to the
Adjustments section on
pages 25 and 26.
18
The Traxxas TQ-3 Radio System
3

The Traxxas TQ-3 Radio System
Using the TQ-3 Radio System
The TQ-3 Radio System was pre-adjusted at the factory.The
adjustment should be checked, before running the model, in
case of movement during shipping. Here’s how:
1. Fully extend the chrome antenna mast on the transmitter
and turn the switch on.The red indicator light on the
transmitter should be solid red (not flashing).
2. Plug the NiCd batteries in the model into the electronic
speed control.
3. Elevate the E-Maxx so that all four tires are off the ground. If
you are holding the E-Maxx, grip it firmly. Make sure your
hands are are clear of the moving parts of the E-Maxx.
4. Move the switch in the E-Maxx to the“ON” position. The servo
and speed control should jump and move to their idle
(neutral) position.The motors may run momentarily, causing
the E-Maxx to lurch.
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. Operate the throttle trigger to ensure that you have full
forward and reverse operation, and that the motor stops
when the throttle trigger is at neutral.
8. Operate the shift button on the transmitter and check for
rapid operation of the shifting servo. Push the shift button up
for first gear; the servo will pull the shift rod out of the
transmission. Push the shift button down for second gear; the
servo will push the shift rod into the transmission.
9. Once adjustments are made, turn off the switch on your
E-Maxx, followed by the handheld transmitter.
Shifting
Servo
Steering
Servo
1°
1°
E-Maxx Servo
Operation
When NiCd
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.
Because your
E-Maxx features
zero-scrub-radius
suspension and wide tires,
the steering servo will not
fully turn the front wheels
when the vehicle is not
moving.
19

The Traxxas TQ-3 Radio System
Range-Testing the TQ-3 Radio System
Before each running session with your E-Maxx, you should range-
test your radio system to ensure that it operates properly.
1. Turn on the radio system and check its operation as described
in the previous section (Using Your Radio System, pages 18-19).
2. Have a friend hold the model. Make sure hands and clothing are
clear of the wheels and other moving parts on the E-Maxx.
3. Make sure your transmitter antenna is fully extended, and then
walk away from the model with the transmitter until you reach
the farthest distance you plan to operate the model.
4. Operate the controls on the transmitter once again to be sure
that the model responds correctly.
5. Do not attempt to operate the model if there is any problem
with the radio system or any external interference with your
radio signal at your location.
Don’t attempt to
operate your
E-Maxx if there are
any problems with your
radio system or radio
interference at your
location.
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