Thank you for purchasing the Stampede 1/10-scale 4X4 electric
monster truck. We are confident that you will appreciate the latest
performance and appearance enhancements that have been
engineered into this model. Following the legacy of the Stampede
name, this 4X4 is overbuilt and Traxxas Tough to withstand all the
4-wheel drive monster mayhem you can dish out. Whether you’re
going through muddy water crossings or just having fun crushing
your buddies’ cars, the Stampede 4X4 just doesn’t know when to
quit. It’s tall, drive-over-anything ground clearance, ultra-tough,
long-arm suspension, and Maxx Chevron off-road tires make
Stampede 4X4 feel nearly indestructible. It’s even waterproof for fun
in all kinds of wet conditions! No other truck offers Stampede 4X4’s
unique style, capability, and reputation for durability. The Stampede
4X4 will reward you with off-road excitement and high-speed
performance in a durable, long-lasting product.
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
this Owner’s Manual. It contains the instructions you will need to
operate and maintain your model so that you can enjoy it for years
to come. This manual also contains all the necessary set-up and
operating procedures that will 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 choosing Traxxas. We work hard every day
to ensure you receive 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. 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. Refer to the next page to find out how to contact
us and what your support options are.
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 • STAMPEDE 4X4
FCC Compliance
This device contains a module that complies with the limits for a Class B digital device as described in part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
The limits for a Class B digital device are designed to provide reasonable protection against harmful interference in residential settings. This product generates, uses, and can radiate radio frequency energy, and, if
not operated in accordance with the instructions, may cause harmful interference to radio communications. The user is cautioned that changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Canada, Industry Canada (IC)
This Class B digital apparatus complies with Canadian ICES-003 and RSS-210. This device complies with Industry Canada license exempt RSS standard(s). Operation is subject to the following two conditions: This
device may not cause interference, and this device must accept any interference, including interference that may cause undesired operation of the device.
Radio Frequency (RF) Exposure Statement
This equipment complies with radio frequency exposure limits set forth by FCC and Industry Canada for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of
20 centimeters between the radiator and your body or bystanders and must not be co-located or operating in conjunction with any other antenna or transmitter.
Page 3
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
support@Traxxas.com. 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 XL-5 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.
• 15-Turn Motor Limit: The XL-5 has a 15-turn modified motor limit for
540 size motors and a 12-turn modified motor limit for 550 size motors
with 0 timing when the motor is properly geared. If the motor or speed
control is overheating, try a smaller pinion gear. Do not attempt to use
a more powerful motor (fewer turns) than the above-mentioned motor
limits or you could experience frequent thermal shutdown.
• Insulate the Wires: Always insulate exposed wiring with heat shrink
tubing to prevent short circuits.
• Water and Electronics Do Not Mix: The XL-5 speed control is
waterproof for use in mud, snow, puddles, and other wet conditions.
Make certain the other components of your model are waterproof or
have sufficient water resistance before driving in wet conditions.
• Transmitter on First: Switch on your transmitter first before switching
on the speed control to prevent runaways and erratic performance.
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.
No previous experience
with radio controlled
models is required.
Models require a minimum
of setup, maintenance, or
support equipment.
4 • STAMPEDE 4X4
•
Use Neutrally Timed Motors: For reverse use, the motors must have
0° timing. Modified motors (with adjustable end bells) timed to 0° or
Johnson/ Mabuchi (closed end bell) motors are recommended. Using
motors with other than 0° timing will draw excess current in reverse, and
can result in the speed control overheating and premature motor wear.
• Always Use Heat Sinks: Three heat sinks are factory-installed on
the speed control and must be used for maximum cooling and
performance.
• 4-8 NiMH cells or 2 LiPo cells (2S) Only: The XL-5 can only accept a
maximum input voltage of 9.6 volts (NiMH), 7.4 volts (2S LiPo). Always
adhere to the minimum and maximum limitations of the XL-5 as stated
in the specifications table.
• Don’t Get Burned: The transistor tabs and the heat sinks can get
extremely hot, so be careful not to touch them until they cool.
Supply adequate airflow for cooling.
• Use Stock Connectors: If you decide to change the battery or motor
connectors, only change one battery or motor connector at a time.
This will prevent accidentally mis-wiring the speed control. If the XL-5
is not wired exactly as shown in the diagram, it can be damaged!
Please note that modified speed controls can be subject to a rewiring
fee when returned for service.
• No Reverse Voltage: The speed control is not protected against
reverse polarity voltage. When changing the battery and/or motor, be
sure to install the same type of connectors to avoid reverse polarity
damage to the speed control. Removing the battery connectors on
the speed control or using the same-gender connectors on the speed
control will void the product’s warranty.
• Motor Capacitors Required: Three 0.1µF (50V) ceramic capacitors
should be properly installed on every motor to prevent radio
interference. Capacitors have been provided with the XL-5.
• Do Not Let the Transistor Tabs Touch: Never allow the three
separate transistor banks to touch each other or any exposed metal.
This will create a short circuit and damage the speed control.
• No Schottky Diodes: External schottky diodes are not compatible
with reversing speed controls. Using a schottky diode with the XL-5
will damage the ESC and void the 30-day warranty.
BATTERIES AND BATTERY CHARGING
The XL-5 speed control uses rechargeable batteries that must be
handled with care for safety and long battery life. Make sure to read
and follow all instructions and precautions that were provided with
your battery packs and your charger. It is your responsibility to charge
and care for your battery packs properly. In addition to your battery
and charger instructions, here are some more tips to keep in mind.
• Never leave batteries to charge unattended.
• Remove the batteries from the model while charging.
• Allow the battery packs to cool off between runs (before charging).
• Always unplug the battery from the electronic speed control when
the model is not in use and when it is being stored or transported.
• Do not use battery packs that have been damaged in any way.
• Do not use battery packs that have damaged wiring, exposed wiring,
or a damaged connector.
• Children should have responsible adult supervision when charging
and handling batteries.
Recycling Your Traxxas Power Cell NiMH Battery
Traxxas strongly encourages you to recycle your Power Cell battery
when it has reached the end of its useful life. Do not throw your
battery in the trash. All Power Cell battery packs display the RBRC
(Rechargeable Battery Recycling Corporation) icon, indicating they are
recyclable. To find a recycling center near you, ask your local hobby
dealer or visit www.call2recycle.org.
LiPo Batteries
Warning: Lithium Polymer (LiPo) batteries require special care and
handling procedures for long life and safe operation. 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.
The XL-5 speed control is able to use LiPo batteries with nominal
voltage not to exceed 7.4 volts (2S packs). LiPo batteries have a
minimum safe discharge voltage threshold that should not be
exceeded. The XL-5 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 products.
If you have questions about LiPo battery usage, please consult with
your local hobby dealer or contact the battery manufacturer.
Page 5
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
2.5mm “L” wrench
4-way wrench
Body clips and
body washers
2.0mm “L” wrench1.5mm “L” wrenchU-joint wrench
Various pre-load spacers
and shock pistons
NiMH battery charger*
8mm/4mm wrench
7-cell NiMH battery pack with
Traxxas High-Current Connector*
REQUIRED EQUIPMENT
(sold separately)
For more information on
batteries, see Use the Right Batteries on page 7.
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
• Traxxas Ultra Premium Tire
Glue, part #6468 (CA glue)
• Hobby knife
• Side cutters and/or needle
nose pliers
• Phillips screwdriver
• Soldering iron
4 AA alkaline
batteries
*Battery and charger style are subject to change and may vary from images.
STAMPEDE 4X4 • 5
Page 6
ANATOMY OF THE STAMPEDE 4X4
Shock
Rear Camber Link
Rear Shock Tower
Spur Gear
Rear Bumper
Battery Hold-DownReceiver Box
Traxxas High-Current
Connector
Drive Shaft
Battery
Front Body Mount
Front Camber Link
Shock Guard
Front Bumper
Front Shock
Tower
Pinion Gear
Rear Body Mount
Rear Suspension Arm
6 • STAMPEDE 4X4
Front Suspension Arm
Motor
Steering Servo
Half Shaft
Chassis
Toe Link
Electronic Speed ControlLED Light Pipe
Page 7
GETTING STARTED
INSTALLING TRANSMITTER BATTERIES
Your TQ 2.4GHz 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. Install the batteries in the correct orientation, as indicated in the
battery compartment.
3. Reinstall the battery compartment door
and snap it closed.
4. Turn on the transmitter and check the
status LED for a solid green light.
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 status LED does not indicate the
charge level of the battery pack installed in the model. Refer to the
Troubleshooting section on page 13 for more information on the
transmitter’s status LED codes.
CHARGING THE BATTERY PACK
The included charger can be used to charge the included battery
pack. The battery pack should be removed from the vehicle before
charging. Do not leave the battery unattended while charging. It is
normal for the battery to become slightly warm as it nears fullcharge, but the battery should never become hot. If the battery
becomes hot, disconnect it from the charger immediately.
1. Plug the charger into the wall. The LED on the charger should
glow green.
2. Connect the included battery pack to the charger output cord.
The LED will glow red, indicating the battery is charging.
3. The battery should charge for approximately 8 hours. The LED
will turn green when the battery is fully charged. Disconnect the
battery from the charger after charging.
1
2
Using Other Chargers
Another convenient option for charging the included battery
is an AC peak-detecting charger that plugs directly into an AC
wall outlet, such as the TRX EZ-Peak
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
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.
™
is a 4 amp charger and will charge
™
(part #2930). It contains
3
If the status LED 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
13 to identify the code.
Use the Right Batteries
Your transmitter uses AA
batteries. Use new alkaline
batteries (part # 2914) 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.
STAMPEDE 4X4 • 7
Page 8
GETTING STARTED
The following Traxxas HighCurrent 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
INSTALLING THE BATTERY PACK
Install the battery pack with
the battery wires facing the
rear of the model. Insert the
tabs of the battery hold-down
into the slots in the rear hold-
down retainer and then place
the battery hold-down over
the post. Secure the battery
hold-down with a body clip in
the hole in the post. Do not
connect the batterypack yet.
Using a Different Battery Configuration
The battery hold-down is capable of accommodating side-by-side
racing style packs, “hump packs” with a stacked seventh cell, or the
more common stick packs. The battery compartment is configured for
stick packs from the factory. The number on each side of the holddown indicates the battery height in millimeters that hold-down can
accommodate. Note that one side is labeled “25” and the other side is
labeled “23”. The 25mm side is for use with typical stick type battery
packs. If you are using side-by-side racing packs, simply flip the holddown over to the 23mm side and use it on the opposite side of the
chassis. Note: For taller batteries, an extended battery hold-down, part
#6727X, is available (sold separately). For shorter batteries (6-cell), use
the included foam block in the front of the battery compartment.
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 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.
To run this model, your batteries must be equipped with Traxxas High-
Current Connectors. Batteries can either be purchased new with Traxxas
connectors installed or Traxxas connectors can be purchased to install
on battery packs you already own. See sidebar on this page for packages
available from your hobby dealer.
The typical Molex-style connector is inadequate for
use in your model. It creates resistance that becomes
a bottleneck to current flow. If your battery pack is
equipped with a Molex connector, it must be replaced
with a Traxxas High-Current Connector to mate with the
electronic speed control.
Molex
connector
8 • STAMPEDE 4X4
25mm side: Standard
NiMH stick pack setup
23mm side: Side-by-side
NiMH pack setup
Page 9
TRAXXAS TQ 2.4GHz RADIO SYSTEM
INTRODUCTION
Your model includes the TQ 2.4GHz transmitter. When powered on, the
TQ 2.4GHz will automatically locate and lock onto an available frequency,
allowing multiple models to be raced together without frequency
conflicts. Just switch on and drive! The included TQ 2.4GHz radio system
has been programmed for your model at the factory and does not
require adjustment, but it does have settings you may need to access to
maintain proper operation of your model. The detailed instructions (page
11) included in this manual will help you understand and operate the
functions of the new TQ 2.4GHz 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.
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.
Current - Current is a measure of power flow through the electronics,
usually measured in amps. If you think of a wire as a garden hose,
current is a measure of how much water is flowing through the hose.
ESC (Electronic Speed Control) - An electronic speed control is the
electronic motor control inside the model. The XL-5 uses MOSFET
power transistors to provide precise, digital proportional throttle
control. Electronic speed controls use power more efficiently than
mechanical speed controls so that the batteries run longer. An
electronic speed control also has circuitry that prevents loss of steering
and throttle control as the batteries lose their charge.
Frequency band - The radio frequency used by the transmitter to send
signals to your model. This model operates on the 2.4GHz
sequence spread spectrum
LiPo - Abbreviation for Lithium Polymer. Rechargeable LiPo battery
packs are known for their special chemistry, which allows extremely
high energy density and current handling in a compact size. These are
high-performance batteries that require special care and handling. 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.
.
direct-
NiCad - Abbreviation for nickel-cadmium. The original rechargeable
hobby pack, NiCad batteries have very high
capacity, and can last up to 1000 charging cycles. Good charging
procedures are required to reduce the possibility of developing a
“memory” effect and shortened run times.
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.
Servos - Small motor units in your model that operate the steering and
throttle mechanisms.
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 steering trim knob on the face of the transmitter.
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.
2-channel radio system - The TQ 2.4GHz 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.
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.”
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.
550 and 540 - These numbers refer to the size of the motor. 550 motors
have armatures that are 30% longer than 540 motors.
current handling, high
Applying the Decals
The main decals for your
model have been applied at
the factory. Additional decals
have been printed on selfadhesive 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.
STAMPEDE 4X4 • 9
Page 10
TRAXXAS TQ 2.4GHz RADIO SYSTEM
KA
18
6
7
R
0
0
KA1867-R00
XL-5 Wiring Diagram
Your model is equipped with the Traxxas TQ 2.4GHz transmitter.
The transmitter has two channels: Channel one operates the
steering, and channel two operates the throttle. The receiver
inside the model has three output channels. Your model is
equipped with one servo and an electronic speed control.
• Always turn your 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 Failsafes 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.
1
Always turn your
transmitter on first.
2
Plug in the battery.
• Always use new or freshly charged batteries for the radio system.
Weak batteries will limit the radio signal between the receiver and
3
Turn on the model.
the transmitter. Loss of the radio signal can cause you to lose
control of your 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
Steering Trim
The steering trim knob located on the face of the
transmitter adjusts the neutral (center) point of the
steering channel. If your model pulls to the right or
left when the steering wheel is centered, turn the knob until the
model drives straight when the steering wheel is centered.
Channel Reversing
The TQ 2.4GHz transmitter has been programmed with the
correct servo direction settings for your model and should not
require adjustment. These instructions are for reference and
troubleshooting only.
Reversing a channel reverses the direction of the corresponding
servo. For example, if you turn the steering wheel to the right
and the model turns left, Channel 1 would need to be reversed to
correct the servo direction. Use the following procedures to reverse
the steering and throttle channels, if necessary. Servo reversing
should only be required if you accidentally reset the direction of
a channel. Do not reverse the steering or throttle channels unless
necessary.
Steering reversing procedure:
1. Press and hold the SET button on the transmitter for two
seconds. The status LED will flash green.
2. Turn and hold the steering wheel to the full left or full right
position (it does not matter which position you choose).
3. While holding the steering wheel in position, press the SET
button to reverse the channel.
4. The channel is now reversed. Confirm correct servo operation
before running your model.
Remember, always turn the
transmitter on first and off
last to avoid damage to your
model.
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.
STAMPEDE 4X4 • 11
Page 12
TRAXXAS TQ 2.4GHz RADIO SYSTEM
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.
Throttle reversing procedure:
Note: Throttle reversing is often times unnecessary on electric
models, as issues with the throttle can usually be solved by
reprogramming the speed control and/or verifying that the motor
is wired correctly. Before attempting to reverse the throttle channel
using the procedure below, you should first recalibrate the speed
control. Refer to “XL-5 Setup Programming” on page 14.
1. Press and hold the SET button on the transmitter for two seconds.
The status LED will flash green.
2. Move and hold the throttle trigger to the full forward or full brake
position (it does not matter which position you choose).
3. While holding the throttle trigger in position, press the SET button
to reverse the channel.
4. The channel is now reversed. Recalibrate the speed control and
then confirm correct servo operation before running
your model.
USING THE RADIO SYSTEM
The TQ 2.4GHz Radio System has been adjusted at the factory for
correct operation with your model. 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).
2. Elevate the model so that the rear tires are off the ground.
If you are holding the model, grip it firmly. Make sure your hands
are clear of the moving parts of the model.
3. Plug the battery pack in the model into the speed control.
4. Press and release the EZ-Set button on the speed control to turn
the model on. The speed control’s LED will glow red. To turn the
speed control off, press the EZ-Set button until the LED turns off.
Note: If the LED shines green after the speed control is turned
on, Low-Voltage Detection is activated. This may cause poor
performance from NiMH battery packs. Make sure to turn the
Low-Voltage Detection on when using LiPo batteries. Never use LiPo batteries while Low-Voltage Detection is turned off. See
page 14 for more information.
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 the 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. Once adjustments are made, turn off 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.
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. 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.
The TQ 2.4GHz transmitter has a directional antenna. For
maximum range, hold the transmitter upright and pointed
in the direction of the model. Pointing the transmitter away
from the model will reduce radio range.
12 • STAMPEDE 4X4
Page 13
TRAXXAS TQ 2.4GHz RADIO SYSTEM
Higher Speeds Require Greater Distance
The faster you drive your model, the more quickly it will near the
limit of radio range. At top speeds, models can cover anywhere
between 25 to 100 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.
Your model’s radio system is designed to operate reliably up to the
approximate distance that it is no longer easy or comfortable to see
and control the model. Most drivers will struggle to see and drive
their model at distances farther than a football field (300+ feet). At
greater distances, you could lose sight of your model and you may
also exceed the radio system’s operating range which will cause
the Failsafe system to activate. For best visibility and control of your
model keep your model within 200 feet, regardless of the maximum
range available.
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.
TRANSMITTER LED CODES
LED Color / PatternNameNotes
Solid greenNormal Driving
Slow red
(0.5 sec on / 0.5 sec off)
Flashing medium red
(0.25 sec on / 0.25 sec off)
Flashing fast red
(0.125 sec on / 0.125 sec off)
Mode
Binding
Low Battery
Alarm
Link Failure /
Error
See page 11 for information
on how to use the transmitter
controls.
See this page for more information
on binding.
Put new batteries in the
transmitter. See page 7 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 (i.e., out of range,
low batteries, damaged antenna).
TQ 2.4GHz 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 SET button on the transmitter.
2. Turn on the transmitter and release the SET button. The status
LED will flash red slowly, indicating that the transmitter is in bind
mode.
3. Press and hold the LINK button on the receiver.
4. Turn on the speed control by pressing the EZ-Set button and
release the LINK button.
5. When the LEDs on both the transmitter and the receiver turn solid
green, the system is bound and ready for use. Confirm that the
steering and throttle operate properly before driving your model.
RECEIVER LED CODES
LED Color / PatternNameNotes
Solid greenNormal Driving
Slow red
(0.5 sec on / 0.5 sec off)
Flashing fast red
(0.125 sec on / 0.125 sec off)
Mode
Binding
Failsafe / LowVoltage Detect
See page 11 for information
on how to use your transmitter
controls.
See this page for more information
on binding.
Consistent low voltage in the
receiver triggers Failsafe so
that there is enough power to
center the throttle servo before it
completely loses power.
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
when the Failsafe mode is
activated. If Failsafe activates
while you are operating
your model, determine the
reason for signal loss and
resolve the problem before
operating your model again.
The XL-5 electronic speed control is equipped with built-in LowVoltage Detection. The Low-Voltage Detection circuitry constantly
monitors the battery voltage. When the battery voltage begins to
reach the minimum recommended discharge voltage threshold
for LiPo battery packs, the XL-5 will limit the power output to
50% throttle. When the battery voltage attempts to fall below the
minimum threshold, the XL-5 will shut down all motor output.
The LED on the speed control will slowly blink red, indicating a
low-voltage shutdown. The XL-5 will stay in this mode until a fully
charged battery is connected.
Your model includes a Power Cell NiMH battery. The XL-5 speed
control’s Low-Voltage Detection has been disabled for best
performance with this battery. The speed control’s LED will glow
red when it is turned on, indicating Low-Voltage Detection is
disabled. Be certain to activate Low-Voltage Detection if you install
LiPo batteries in your model. Never use LiPo batteries while Low-
Voltage Detection is disabled.
Verify that Low-Voltage Detection is DISABLED:
1. Turn on the transmitter (with the throttle at neutral).
2. Connect a fully charged battery pack to the XL-5.
3. Press and release the EZ-Set button to turn the XL-5 on. If the LED
is solid red, then the Low-Voltage Detection is DISABLED (not safe
to use LiPo batteries). If the LED is solid green, then Low-Voltage
Detection is ACTIVATED.
To activate Low-Voltage Detection (LiPo setting):
1. Make sure the LED on theXL-5 is on and RED.
2. Press and hold the EZ-Setbutton (the
LED will turn off). After tenseconds, the
motor will beep twice and the LED will
shine GREEN. Release the button.
3. Low-Voltage Detection is nowACTIVATED.
To disable Low-Voltage Detection (NiMH setting):
1. Make sure the LED on theXL-5 is on and GREEN.
2. Press and hold the EZ-Setbutton (the
LED will turn off). After tenseconds, the
motor will beep three times and the LED
will shine RED. Release the button.
3. Low-Voltage Detection is now DISABLED.
XL-5 Setup Programming (Calibrating your ESCand transmitter)
Read through all of the programming steps before you begin. If you
get lost during programming or receive unexpected results, simply
unplug the battery, wait a few seconds, plug the battery pack in, and
start over.
1. Disconnect one of the motor wires between the
A
XL-5 and the motor. This is a precaution to prevent
runaway when the speedcontrol is turned on
before it is programmed.
2. Connect a fully chargedbattery pack
to the XL-5.
B
Green then Red
3. Turn on the transmitter (with the
throttle at neutral).
4. Press and hold the EZ-Set button (A).
The LED will first turn green and then
Once Red
C
red. Release the button.
5. When the LED blinks REDONCE, pull
the throttle trigger to the full throttle
position and hold it there (B).
6. When the LED blinks RED TWICE,push the throttle
Twice Red
D
trigger to the full reverse and hold it there (C).
7. When the LED blinks GREEN ONCE, programming
is complete. The LED will then shine green or red
Solid
(depending on Low-Voltage Detection setting),
indicating the XL-5 is on and at neutral (D).
Page 15
ADJUSTING THE ELECTRONIC SPEED CONTROL
XL-5 Operation
To operate the speed control and test the programming, reconnect
the motor wires and place the vehicle on a stable block or stand so
that all of the driven wheels are off the ground.
Note that in steps 1-8 below, Low-Voltage Detection is DISABLED
(factory default) and the LED shines red. If Low-Voltage Detection is
ACTIVATED, the LED will shine green instead of red in steps 1-8 below.
Never use LiPo batteries while Low-Voltage Detection is disabled.
1. With the transmitter on, press and release the EZ-Set button.
The LED will shine RED. This turns the XL-5 on. If you press and
release too quickly, you may hear the steering servo jump but the
LED may not stay on. Simply press the button again until the LED
shines RED and then release.
2. Apply forward throttle. The LED will turn off until full throttle
power is reached. At full throttle, the LED will shine RED.
3. Move the trigger forward to apply the brakes. Note that braking
control is fully proportional. The LED will turn off until full braking
power is reached. At full brakes, the LED will shine RED.
4. Return the throttle trigger to neutral. The LED will shine RED.
5. Move the throttle trigger forward again to engage reverse (Profile
#1). The LED will turn off. Once full reverse power is reached, the
LED will shine RED.
6. To stop, return the throttle trigger to neutral. Note that there is
no programmed delay when changing from reverse to forward.
Use caution to avoid slamming the speed control from reverse
to forward. On high-traction surfaces, this could result in
transmission or driveline damage.
7. To turn the XL-5 off, press and hold the EZ-Set button for 1½
seconds or until the red LED turns off.
8. The XL-5 is equipped with thermal shutdown protection to
guard against overheating caused by excessive current flow.
If the operating temperature exceeds safe limits, the XL-5 will
automatically shut down. The LED on the face of the XL-5 will
rapidly blink red, even if the throttle trigger is moved back and
forth. Once the temperature returns to a safe level, the XL-5 will
once again function normally.
XL-5 Profile Selection
The speed control is factory set to Sport Mode (100% forward,
brakes, and reverse). To disable reverse (Race Mode) or to allow
50% power (patented Training Mode), follow these steps. The speed
control should be connected to the receiver and the transmitter
adjusted as described previously. The profiles are selected by
entering the programming mode.
2. With the XL-5 off, press and hold
the EZ-Set button until the LED turns
solid green, then solid redand then
begins blinking red (indicating the
Green to Red to Off
C
Two blinks Red
D
Profile numbers).
3. When the LED blinks RED TWICE,
release the EZ-Set button.
Release
Solid
4. The LED will blink and then turn solid green (Low-Voltage
Detection ACTIVE) or red (Low-Voltage Detection DISABLED). The
model is ready to drive.
Patented Training Mode
(Profile #3) reduces forward
and reverse throttle by 50%.
Training Mode is provided
to reduce the power output,
allowing beginning drivers to
better control the model. As
driving skills improve, simply
change to Sport or Race Mode
for full-power operation.
Tip For Fast Mode Changes
The XL-5 is set to Profile 1 (Sport
Mode) as the default. To quickly
change to Profile 3 (Training
Mode), with the transmitter on,
press and hold the EZ-Set button
until the light blinks red three
times and then release. For full
power, quickly change back
to Profile 1 (Sport Mode) by
pressing and holding the EZ-Set
button until the light blinks red
one time and then releasing.
STAMPEDE 4X4 • 15
Page 16
ADJUSTING THE ELECTRONIC SPEED CONTROL
Throttle Neutral Protection
The XL-5 speed control features
Throttle Neutral Protection,
which prevents the model from
suddenly accelerating if the
speed control is switched on
while the transmitter’s trigger is
being held. When the trigger is
returned to neutral, the XL-5 will
operate properly.
2. With the XL-5 off, press and hold the
EZ-Set button until the LED turns solid
green, then solid red andthen begins
blinking red (indicating the Profile
Green to Red to Off
C
Three blinks Red
D
numbers).
3. When the LED blinks RED THREE
TIMES, release the EZ-Set button.
Release
Solid
4. The LED will blink and then turn solid green (Low-Voltage
Detection ACTIVE) or red (Low-Voltage Detection DISABLED). The
model is ready to drive.
Note: If you missed the mode you wanted, keep the EZ-Set button
pressed down and the blink cycle will repeat until the button is
released and a Mode is selected.
• Solid Red: XL-5 power-on light. Low-Voltage Detection is
DISABLED (NiMH setting). Never use LiPo batteries while
Low-Voltage Detection is disabled.
• Fast Blinking Red: The XL-5 is equipped with thermal
shutdown protection to guard against overheating caused
by excessive current flow. If the operating temperature
exceeds safe limits, the XL-5 will automatically shut down.
Let the XL-5 cool. Make sure your model is properly geared
for the conditions.
• Slow Blinking Red (when Low-Voltage Detection is activated): The XL-5 has entered Low-Voltage Protection.
When the battery voltage begins to reach the minimum
recommended discharge voltage threshold for LiPo
battery packs, the XL-5 will limit the power output to 50%
throttle. When the battery voltage attempts to fall below
the minimum threshold, the XL-5 will shut down all motor
output. The LED on the speed control will slowly blink red,
indicating a low-voltage shutdown. The XL-5 will stay in this
mode until a fully charged battery is connected.
• Fast Blinking Green: The XL-5’s LED will blink fast green if
the speed control is not receiving a signal. Make certain the
speed control is properly plugged into the receiver and the
transmitter is switched on.
16 • STAMPEDE 4X4
Page 17
DRIVING YOUR MODEL
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 (2400mAh and above) 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.
• The Titan 12T motor will benefit from a short break-in period to ensure
optimum performance and longer motor life. For the first battery pack, use
the stock installed pinion gear and drive smoothly on a flat, paved surface.
Accelerate smoothly (avoiding full throttle starts), with most of the driving
being done at higher speeds. This will help ensure that the motor provides
the best performance and longest life.
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 that affects run time is how the model is driven. Run
times may decrease when the model is driven repetitively from a stop to topspeed 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.
• Vary your speed. The Titan12T is a fan cooled motor, therefore moderate to
top-speed running helps reduce motor temperatures.
• Maintain your model. Do not allow dirt or damaged parts to cause binding
in the drivetrain. Keep the motor clean and the motor bushings lightly
lubricated.
mAh Ratings and Power Output
The mAh rating of the battery can affect 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.
RUNNING IN WET CONDITIONS
Your new Traxxas model is designed with water-resistant features to protect
the electronics in the model (receiver, servos, electronic speed control). This
gives you the freedom to have fun driving your model through puddles,
wet grass, snow, and through other wet conditions. Though highly water
resistant, the model should not be treated as though it is submersible or
totally, 100% waterproof. Water resistance applies only to the installed
electronic components. Running in wet conditions requires additional care
and maintenance for the mechanical and electrical components to prevent
corrosion of metal parts and maintain their proper function.
Precautions
• Without proper care, some parts of your model can be seriously damaged
due to contact with water. Know that additional maintenance procedures
will be required after running in wet conditions in order to maintain the
performance of your model. Do not run your model in wet conditions
if you are not willing to accept the additional care and maintenance
responsibilities.
• Not all batteries can be used in wet environments. Consult your battery
manufacturer to see if their batteries can be used in wet conditions.
• The Traxxas TQ 2.4GHz transmitter is not water resistant. Do not subject it to
wet conditions such as rain.
TRAXXAS • 17
Page 18
DRIVING YOUR MODEL
• Do not operate your model during a rain storm or other inclement
weather where lightning may be present.
• Do NOT allow your model to come in contact with salt water (ocean
water), brackish water (between fresh water and ocean water),
or other contaminated water. Salt water is highly conductive and
highly corrosive. Use caution if you plan to run your model on or
near a beach.
• Even casual water contact can reduce the life of your motor. Special
care must be taken to modify your gearing and/or your driving style
in wet conditions to extend the life of the motor (details follow).
Before Running Your Vehicle in Wet Conditions
1. Consult the section “After Running Your Vehicle in Wet
Conditions” before proceeding. Make sure you understand the
additional maintenance required with wet running.
2. The wheels have small holes molded in to allow air to enter and
exit the tire during normal running. Water will enter these holes
and get trapped inside the tires if holes are not cut in the tires. Cut
two small holes (3mm or 1/8” diameter) in each tire. Each hole
should be near the tire centerline, 180° apart.
3. Confirm that the receiver box O-ring and cover are installed
correctly and secure. Make sure the screws are tight and the blue
O-ring is not visibly protruding from the edge of the cover.
4. Confirm that your batteries can be used in wet conditions.
Motor Precautions
• Titan motor life can be greatly reduced in mud and water. If the
motor gets excessively wet or submerged, use very light throttle
(run the motor slowly) until the excess water can run out. Applying
full throttle to a motor full of water can cause rapid motor failure.
Your driving habits will determine motor life with a wet motor. Do
not submerge the motor under water.
• Do not gear the motor by temperature when running in wet
conditions. The motor will be cooled by water contact and will not
give an accurate indication of appropriate gearing.
After Running Your Vehicle in Wet Conditions
1. Drain the tires by spinning the tires at high speed to “sling” the
water out. One way to do this is to make several high-speed passes
on a flat, dry surface, if possible.
2. Remove the batteries.
3. Rinse excess dirt and mud off the truck with low-pressure water,
such as from a garden hose. Do NOT use pressure washer or other
high-pressure water. Avoid directing water into the bearings,
transmission, etc.
4. Blow off the truck with compressed air (optional, but
recommended). Wear safety glasses when using compressed air.
5. Remove the wheels from the truck.
6. Spray all the bearings, drivetrain, and fasteners with WD-40
®
or
similar water displacing light oil.
7. Let the truck stand or you may blow off with compressed air.
Placing the truck in a warm, sunny spot will aid drying. Trapped
water and oil will continue to drip from the truck for a few hours.
Place it on a towel or piece of cardboard to protect the surface
underneath.
8. As a precautionary step, remove the sealed receiver box
cover. While unlikely, humidity or tiny amounts of moisture or
condensation may enter the receiver box during wet running.
This can cause long-term problems with the sensitive electronics
in the receiver. Removing the receiver box cover during storage
allows the air inside to dry. This step can improve the long-term
reliability of the receiver. It is not necessary to remove the receiver
or unplug any of the wires.
9. Additional Maintenance: Increase your frequency of disassembly,
inspection, and lubrication of the following items. This is
necessary after extended wet use or if the vehicle will not be
used for an extended period of time (such as a week or longer).
This additional maintenance is needed to prevent any trapped
moisture from corroding internal steel components.
• Stub axle housing bearings: Remove, clean, and re-oil the
bearings.
• Spur and pinion gears: Inspect the gears for wear, broken teeth,
or any debris lodged between the teeth. You do not need to
lubricate the gears.
• Titan motor: Remove the motor, clean with aerosol motor
cleaner, and re-oil the bushings with lightweight motor oil. Be
sure to wear eye protection when using spray aerosol cleaners.
18 • STAMPEDE 4X4
Page 19
DRIVING YOUR MODEL
RECEIVER BOX:
MAINTAINING A WATERTIGHT SEAL
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. Remove the wire clamp by removing the two 2.5x8mm cap screws.
2. Remove the cover by removing the two 3x10mm cap screws.
3. 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.
4. Unplug the servo cables from the receiver and remove
the receiver.
Receiver Installation
1. Install the electronic speed control (ESC), servo, and antenna
wiring through the receiver box top (A).
2. Plug the ESC and servo wires into the receiver (see page 10).
3. Bundle wiring as necessary.
4. Make sure the O-ring is properly seated into
the groove in the receiver box bottom so
that the cover will not pinch it or damage it
in any way.
5. Place the receiver box top onto the receiver
box bottom and install and tighten the two
3x10mm cap screws securely.
6. Inspect the cover to make sure that the
O-ring seal is not visible.
7. Arrange the wires neatly using the wire
guides on the receiver box top (B). Excess
ESC and servo wiring should be bundled
inside the receiver box. Pull out all available
antenna wiring from the receiver box.
8. Apply a small bead of silicone grease to the
foam on the wire clamp (C).
9. Install the wire clamp and tighten the two
2.5x8mm cap screws securely (D).
A
B
C
D
SETTINGUPTHE ANTENNA
The receiver antenna has been set
up and installed from the factory.
The antenna is secured by a 3x4mm
set screw. To remove the antenna
tube, simply remove the set screw
with the included 1.5mm wrench.
When reinstalling the antenna,
first slide theantenna wire into the
bottom of theantenna tube until
the white tip of the antenna is at
the top of the tube under the black
cap. Next insert the antenna tube
into the mount while making sure
that antenna wire is in the slot in
the antenna mount, then install the
set screw next to the antenna tube.
Use the supplied 1.5mm wrench
to tighten the screw just until the
antenna tube is securely in place.
Do not over tighten.
Do not bend or kink the antenna wire! See the
sidebar for more information. Do not shorten the antenna tube.
Antenna
Tip
Antenna
Tube
Antenna
Mount
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
NoNoNoNo
STAMPEDE 4X4 • 19
Page 20
ADJUSTING YOUR MODEL
Rear toe-in can be adjusted
using accessory rear axle
carriers, part #1952X. These
can add or remove 1.5° toe
per side, for a total of 0 to 3
degrees per side.
20 • STAMPEDE 4X4
Once you become familiar with driving your model, you might need
to make adjustments for better driving performance.
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 gear cover.
To set the gear mesh, loosen the
motorscrew. Cut a narrow strip of
notebook paper and run it into the
gear mesh. Slide the motor and pinion
gear intothe spur gear. Retighten the
Motor
Screw
motor screws and then remove the
strip of paper. You should be able to
run a fresh strip of paper through the
gears withoutbinding them.
Strip of
Paper
Adjusting the Toe-in
Geometry and alignment specs play an important role in your
model’s handling. Take the time to set them correctly. Set the
steering trim on your transmitter to neutral. Now, adjust your servo
and tie rods so that both wheels are pointing straight ahead and are
parallel to each other (0° toe-in).This will ensure the same amount
of steering in both directions. For increased stability add 1° to 2°
of toe-in to each front wheel. Use the turnbuckles to adjust the
alignment.
Toe Base Factory Settings
Front: 0-degrees
Rear: 1.5-degrees
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.
* The shock guards must be removed on
the front arms to access position 4.
** The shock guards must be removed on
the front or rear arms to access position 5.
The suspension of your model has been set up for off-road
performance (position 1 on the front suspension arms and position
2 on the rear suspension arms). If you plan on driving on hard
surfaces, the following changes should be made:
1. Move the front shocks to position 2 on the suspension arms.
2. Move the rear shocks to position 3 on the suspension arms.
3. Add additional preload spacers.
4. Position 1 is not recommended for the rear shocks.
Fine Tuning the Shocks
The four shocks on the model greatly
influence its handling. Whenever you
rebuild your shocks, or make any changes
to the pistons, springs, or oil, always make
changes to them in pairs (front or rear).
Piston selection depends on the range of
oil viscosities that you have available. For
example, using a two-hole piston with a
light-weight oil will, at one point, give you
Preload
Spacer
the same damping as a three-hole piston
with heavier oil.
We recommend using the two-hole pistons
with a range of oil viscosities from 10W to
50W (available from your hobby shop). The
Page 21
ADJUSTING YOUR MODEL
thinner viscosity oils (30W or less) flow more smoothly and are more
consistent, while thicker oils provide more damping. Use only 100%
pure silicone shock oil to prolong seal life. From the factory, shock
oil is set to 30W in the front and rear shocks.
The model’s ride height can be adjusted by adding or removing the
clip-on, spring preload spacers. Adjust the ride height so that the
suspension arms are slightly above being parallel to the ground.
Observe how the model handles in turns. Proper setup will add stability
and help prevent spin outs. Experiment with different springs and
shock oils to find what works best for your current track conditions.
Centering Your Servo
If the trim controls on your transmitter seem off, you may need to
re-center your servo. Additionally, whenever your servo has been
removed for service or cleaning, it must be re-centered prior to
installation in the model.
1. Disconnect the servo horn from the steering servo.
2. Connect the steering servo to channel 1 on the receiver. Connect
the electronic speed control (ESC) to channel 2.
3. Place fresh “AA” batteries in the transmitter and turn the
transmitter power switch on.
4. Turn the steering trim adjustment on the transmitter to the center
“0” position.
5. Elevate the rear wheels of the model. Connect a fresh 7.2V battery
pack to the speed control and turn on the ESC (see page 11). The
servo will automatically jump to its center position.
6. Turn off the power to the model followed by the transmitter. The
servo horn is now ready to be installed.
7. Be careful not to move the servo shaft when installing the servo
horn. Readjust the ESC as described in the “Adjusting the Speed
Control” section.
Motors and Gearing
There are two different types of motors that can be purchased
for your model, brushed and brushless. Brushed motors are the
standard and offer good power inexpensively. They use metallic
brushes to send electrical power to the commutator inside the
motor. A brushless motor eliminates the brush-to-commutator
contact points, along with its heat and wear. Because of this,
brushless motors offer more speed, and are more efficient and
do not require the same amount of maintenance, but are more
expensive and require a special electronic speed control (ESC).
When going brushless, differential gears, parts #5379 and #6879,
can be used for maximum durability.
One of the more significant advantages to your model’s
transmission is the extremely wide range of available gear ratios. It
can be geared low enough to run extremely hot, modified motors.
Modified motors should be geared lower (higher numerically) than
stock motors because they reach their maximum power at higher
RPM’s. A modified motor that is geared incorrectly can actually
be slower than a correctly-geared, stock motor. Use the following
formula to calculate the overall ratio for combinations not listed on
the gear chart:
# Spur Gear Teeth
x 3.92 = Final Gear Ratio
# Pinion Gear Teeth
If you are worried that you might be over-geared, check the
temperature of the battery pack and motor. If the battery is extremely
hot, and/or the motor is too hot to touch, your model is probably
over-geared. If you are not able to run your model for at least four
minutes before the battery dies, then change to a lower gear ratio.
This temperature test assumes that the model is close to factory stock
weight and operates freely with no excessive friction, dragging, or
binding, and the battery is fully charged and in good condition.
The model is equipped with a Titan 12T motor. The gear
combination that comes stock on each model provides good overall
acceleration and top speed. If you want more top speed and less
acceleration, install the optional high-speed gearing (more teeth;
sold separately). The optional high-speed gearing is intended for
high-speed running on hard surfaces, and is not recommended for
off-road or repetitive starting and stopping.
The Titan 12T is equipped with an integrated cooling fan that is
effective during medium to high-speed operation. The gearbox is
specially vented to cool the motor. Repetitive starting and stopping
over short distances creates excess heat and will not allow the fan
to cool the motor properly. For this type of driving, smaller pinion
gears are recommended to reduce load on the motor.
Gearing Compatibility Chart:
The chart below shows
recommended gear combination
ranges for your model.
Spur Gear
505254
21.76 22.63 23.50
9
10 19.58 20.37 21.15
11 17.80 18.52 19.23
12 16.32 16.97 17.63
13 15.06 15.67 16.27
14 13.99 14.55 15.11
15 13.06 13.58 14.10
16 12.24 12.73 13.22
17 11.52 11.98 12.44
Pinion Gear
18 10.88 11.31 11.75
19 10.31 10.72 11.13
209.7910.18 10.58
219.339.7010.07
228.909.269.61
238.518.869.20
248.168.498.81
25
7.838.158.46
Out of Box Setup, recommended for most
running, 6 or 7 cell NiMH, 2S LiPo
30+ mph gearing (Sold Separately),
for high-speed running only
Fits, for high-speed runs only
Not recommended
Does not fit
STAMPEDE 4X4 • 21
Page 22
ADJUSTING YOUR MODEL
To achieve a good starting
point for the slipper clutch
in this model, remove the
slipper gear assembly from
your model (see page 24 for instructions) and 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 one full
turn.
Do not run your model with
the slipper clutch adjusting
spring fully compressed. The
minimum recommended
slipper clutch setting is 1/2
turn counterclockwise from
fully compressed.
22 • STAMPEDE 4X4
Adjusting the Slipper Clutch
The model is equipped with an adjustable 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 wheels to prevent tire
spin. When it slips, the slipper clutch makes a high-pitch, whining
noise. To adjust the slipper, remove the slipper gear assembly from
your model (see page 25 for instructions), and turn the adjusting nut
clockwise to tighten or counterclockwise to loosen. Adjust the slipper
so that you can hear it slip for a moment from a standing, full throttle
start. (Learn more about adjusting the slipper clutch in the sidebar.)
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 THE SEALED GEAR DIFFERENTIALS
The action of the model’s front and rear gear differentials can
be tuned for different driving conditions and performance
requirements without major disassembly or removal of the
suspension system.
From the factory, the differentials are sealed to maintain consistent
long-term performance. Changing the oil in the differential with
either lower or higher viscosity oil will vary the performance
characteristics of the differentials. Changing to higher viscosity oil
in the differential will reduce the tendency for motor power to be
transferred to the wheel with the least traction. You may notice this
when making sharp turns on slick surfaces. The unloaded wheels
on the inside of the turn have the least traction and tend to spin
up to extremely high RPMs. Higher viscosity (thicker) oil causes the
differential to act like a limited-slip differential, distributing more
equal power to the left and right wheels.
Stampede 4X4 will generally benefit from higher viscosity oil when
climbing or racing on low traction surfaces. Note: Heavier oil will
allow power to be transferred even with one or more tires off the
ground. This can make the vehicle more likely to overturn on hightraction surfaces.
From the factory, the front and rear differentials are filled with SAE
30,000W viscosity silicone oil.
Only use silicone oil in the differentials. Traxxas offers various
viscosity oil between SAE 10,000W, and 500,000W (see your parts
list). The differentials have to be removed from the vehicle and
disassembled to change/replace oil. Follow the steps below to
access and refill the front and rear differentials:
Front differential:
1. Remove the two 3x15mm button-head screws that secure the
top bumper mount to the differential case.
2. Turn the chassis over and remove the three 4x10mm
countersunk screws that hold the bumper/skid plate to the
bulkhead. The two rear screws do not need to be removed.
3. Slide the bumper assembly off the chassis.
4. Remove the 3x15mm button-head screw from the differential
tie bar.
5. Slide the tie bar off the truck.
Page 23
ADJUSTING YOUR MODEL
6.Remove the two 3x15mm button-head screws from the differential cover. Do not remove the two screws that secure the shock tower.
7.Use a 1.5mm hex wrench to remove the two screw pins that hold the driveshaft yokes to the differential output shafts. Remove the differential cover and slide the differential out of the front of the case.
8.To reinstall the differential, reverse the steps.
Rear differential:
1.Remove the two 3x20mm button-head screws that secure the top bumper mount to the differential case.
2.Turn the chassis over and remove the two 3x12mm countersunk crews that hold the bumper/skid plate to the bulkhead. The two front screws do not need to be removed.
3.Remove the 3x20mm button-head screw from the bumper mount and tie bar.
4.Slide the bumper assembly off the chassis.
5.Remove the tie bar from the chassis.
6.Remove the two 3x15mm button-head screws from the differential cover. Do not remove the two screws that secure the shock tower.
7.Remove the differential cover and slide the differential out of the front of the case.
8.To reinstall the differential, reverse the steps.
Refilling the differential:
1.Remove the four 2.5x10mm screws from the differential case and
carefully pull the differential case halves apart. Work over a towel
to collect any fluid that drips from the differential.
2. Drainthe fluid from the differential. You may wish to remove the
spider gears from the differential to make this easier.
3. Place the spider gears back into the differential case (if you
removed them). Fill the differential case with fluid until the spider
gears are submerged half way.
4. Rejoin the differential case halves, using care to align the screw
holes. Be sure the rubber gasket is in place or the differential
may leak.
5. Install the 2.5x10mm screws and tighten securely.
Front Differential Removal
3.
Rear Differential Removal
3. 3x20 BCS
6.3x15 BCS
5.
2. 4x10 BCS
6.3x15 BCS
1.3x20 BCS
1. 3x15 BCS
4.3x15 BCS
4.
2. 3x12 BCS
5.
Front of
Truck
STAMPEDE 4X4 • 23
Page 24
MAINTAINING YOUR MODEL
Always wear eye protection
when using compressed
air or spray cleaners and
lubricants.
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. Check the operation of the steering servo and ensure that it is
not binding.
10. Inspect the gears for wear, broken teeth, or debris lodged
between the teeth.
11. Check the tightness of the slipper clutch.
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.
• Steering: Over time, you may notice increased looseness in the
steering system. There are several components that will wear
out from use: the bellcrank bushings (part #2545), and the tie
rod ends (part #2742). Replace these components as needed
to restore factory tolerances. The bellcrank bushings may be
replaced with 5x8mm ball bearings (part #2728).
• 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. If a U-joint pops apart, then it is time to replace the part.
Remove the gear cover to inspect the spur gear for wear and
check the tightness of the 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 battery 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.
24 • STAMPEDE 4X4
Page 25
Suspension and slipper clutch assembly removal
Your model was designed with ease of disassembly in mind. The entire front and rear suspension
assemblies can be removed from the chassis fully intact with the removal of only a few screws.
Refer to the exploded views included in the your model’s Service Support Guide for complete
assembly diagrams.
• Removing the front suspension module
1. Remove the two 4x12 button-head cap screws from the front of the chassis.
2. Remove the two 4x10 button-head cap screws from the top of the chassis.
3. Remove the 3x15 button-head cap screw from the steering link under the chassis.
4. Pull the front suspension assembly away from the chassis.
5. The driveshaft will come out with the front module. Remove screwpin to remove driveshaft.