Traxxas RC Toys Manual
MODEL 70054-1
owner’s manual
RC TOYS
INTRODUCTION
3
BEFORE YOU
PROCEED
3SAFETY
PRECAUTIONS
5
TOOLS, SUPPLIES,
AND REQUIRED
EQUIPMENT
6
ANATOMY OF THE
1/16 SLASH 4WD
7
QUICK START:
GETTING UP
TO SPEED
8
THE TRAXXAS
TQ 2.4GHz RADIO
SYSTEM
16 ADJUSTING THE
ELECTRONIC SPEED
CONTROL
18 DRIVING YOUR MODEL
21TUNING
ADJUSTMENTS
25MAINTAINING
YOUR MODEL
2 • 1/16 SLASH 4WD
Thank you for purchasing a Traxxas 1/16 scale model. Your new
model combines proven Traxxas innovations including F1inspired, rocker-actuated suspension, waterproof electronics,
and a monocoque-style chassis for outstanding handling and
incredible speed and power. Your Traxxas model is designed for
high-performance driving, with balanced weight distribution,
lightweight and high-strength materials, and the precise
engineering that is the hallmark of all Traxxas vehicles.
This manual contains the instructions you will need to operate and
maintain your model so that you can enjoy it for years to come.
We want you to feel confident that you own one of the bestperforming models in the market and that it is backed by a team
of professionals who aim to provide the highest level of factory
support possible. Traxxas models are about experiencing total
performance and satisfaction, not just with your model, but also
with the company that stands behind it.
We know you’re excited about getting your new model on the
road or trail, but it’s very important that you take some time to
read through the Owner’s Manual. This manual contains all the
necessary setup and operating procedures that allow you to unlock
the performance and potential that Traxxas engineers designed
into your model. Even if you are an experienced R/C enthusiast,
it’s important to read and follow the procedures in this manual.
Thank you again for going with Traxxas. We work hard every day to
assure you the highest level of customer satisfaction possible. We
truly want you to enjoy your new model!
Traxxas Support
Traxxas support is with you every step of the
way. Refer to the next page to find out how to
contact us and what your support options are.
Quick Start
This manual is designed with a Quick
Start path that outlines the necessary
procedures to get your model up
and running in the shortest time possible. If you are an
experienced R/C enthusiast, you will find it helpful and fast.
Be sure and read through the rest of the manual to learn
about important safety, maintenance, and adjustment
procedures. Turn to page 7 to begin.
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.
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
• Disconnect the Battery: Always disconnect the battery from the speed
control when not in use.
• Transmitter on First: Switch on your transmitter first before switching on the
speed control to prevent runaways and erratic performance.
• Don’t Get Burned: The heat sink can get extremely hot, so be careful not to
touch it until it is 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 damage from accidentally mis-wiring the speed control.
Please note that modified speed controls can be subject to a rewiring fee
when returned for service. Removing the battery connector on the speed
control or using connectors with no reverse-polarity protection on the speed
control will void the product’s warranty.
• Insulate the Wires: Always insulate exposed or damaged wiring with heat
shrink tubing to prevent short circuits.
• 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
*Toll-free support is available to U.S. residents only.
1
1/16 SLASH 4WD • 3
Skill Level = Myriad Semi Bold
SAFETY PRECAUTIONS
All instructions and
precautions outlined in this
manual should be strictly
followed to ensure safe
operation of your model.
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.
• No Schottky Diodes: External Schottky diodes are not compatible with
reversing speed controls. Using a Schottky diode will damage the electronic
speed control (ESC) and void the 30-day warranty.
• Using Two Batteries: When using two batteries, the batteries must be
connected in parallel. Never connect two batteries in series, this will cause the
ESC to fail. See page 12 for more information.
bluehighway font
1 2 3 3+ 4 5
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 • 1/16 SLASH 4WD
Batteries and Battery Charging
Your model 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 the battery packs and your charger. It is
your responsibility to charge and care for the battery packs properly. In addition
to your battery and charger instructions, here are some more tips to keep in
mind.
• Use the supplied charger to charge the included battery.
See “Charging the Battery Pack” on page 11.
• Never leave batteries to charge unattended.
• Remove the battery from the model while 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.
• Allow the battery pack to cool off between runs (before charging).
• 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.
• Do not charge batteries inside of an automobile. Do not charge batteries
while driving in an automobile. The charger is equipped with a long cord
ForExpertDriversintended to allow the battery to be charged outside of an automobile when
using the automobile’s auxiliary power socket. If the cord will not reach
outside of the automobile, find another power source.
• Never charge batteries on wood, cloth, carpet or on any other flammable
material.
• Do not operate the charger in a cluttered space, or place objects on top of the
charger or battery.
• If a battery gets hot to the touch during the charging process (temperature
greater than 140°F / 60°C), disconnect the battery from the charger and
discontinue charging immediately.
• Always store battery packs safely out of the reach of children and pets.
• Do not short-circuit the battery pack. This may cause burns and severe
damage to the battery pack and create the risk of fire.
• Do not burn or puncture the batteries. Toxic materials could be released. If eye
or skin contact occurs, flush with water.
• Do not expose the charger to water or moisture.
• Do not disassemble the charger.
• Store the battery pack in a dry location, away from heat sources and direct
sunlight.
• Nickel-Metal Hydride (NiMH) batteries must be recycled or disposed of
properly.
LiPo Batteries
BELOW TEXT HAS BEEN UPD
Lithium Polymer (LiPo) batteries are becoming popular for use in R/C models
Kent
maintenance
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due to their compact size, high energy density,
andwants
high-current
output;
however, these types of batteries require special care and handling procedures
for long life and safe operation. Warning: LiPo batteries are intended only for
advanced users that are educated on the risks associated with LiPo battery
use. Traxxas does not recommend that anyone under the age of 14 use or
handle LiPo battery packs without the supervision of a knowledgeable and
No previous experience with radio controlled models is re
responsible adult.
Models require a minimum of setup, maintenance, or sup
The XL-2.5 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
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arising out of the installation and/or use of LiPo batteries in Traxxas products.
For Expert Drivers Only. This product is capable of extr
DO NOT ATTEMPT TO CHARGE LIPO BATTERIES OR ANY OTHER TYPE OF
and acceleration! It carries our highest skill level rating an
BATTERY WITH THE INCLUDED TRAXXAS CHARGER.
for expert drivers only. Experience with nitro-powered rad
If you have questions about
LiPo battery
usage, please consult with your local
models
is required!
hobby dealer or contact the battery manufacturer.
Choose the Model That is Rig
Recycling Your Traxxas Power Cell NiMH Battery
Traxxas strongly encourages you to recycle your Power Cell NiMH battery when it
has reached the end of its useful life. Do not throw your battery in the trash. All
Power Cell NiMH battery packs display the RBRC (Rechargeable Battery Recycling
Corporation) icon, indicating they are recyclable
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
REQUIRED EQUIPMENT
(sold separately)
4 AA alkaline
batteries
1.5mm “L” wrench
2.0mm “T” wrench
2.5mm ball driver wrench
4-way wrench
For more information on
batteries, see Use the Right
Batteries on page 11.
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
6-cell 2/3A NiMH battery
NiMH battery charger
Body clips
• Side cutters and/or needle
nose pliers
• Phillips screwdriver
DECORATING YOUR MODEL
• Soldering iron
APPLYING THE DECALS
The main decals for your model
have been applied at the factory.
Additional decals are printed on
self-adhesive clear mylar and are
die-cut for easy removal. Use a
hobby knife to lift the corner of a
decal and lift it from the backing.
To apply the decals, place one end
down, hold the other end up, and
gradually smooth the decal down
with your finger as you go. This will
prevent air bubbles. Placing both
ends of the decal down and then
trying to smooth it out will result in
air pockets.
Look at the photos on the box for
typical decal placement.
9
1/16 SLASH 4WD • 5
ANATOMY OF THE 1/16 SLASH 4WD
Rear Half Shaft
Turnbuckle
Battery Compartment Vent
Hex Hub
Battery Door Release Tab
Pivot Ball
Antenna Mount
Rear Body
Mount
Axle Carrier
Battery Compartment Door
Turnbuckle
Rear
Bumper
LED Light Pipe
Receiver Box
Push Rod
Rocker
Front
Bumper
Front Body
Mount
Rocker
Push Rod
Rear Suspension
Arm
Traxxas High-Current
Connector
6 • 1/16 SLASH 4WD
Electronic Speed
Control (XL-2.5)
Oil Shock
(Damper)
Motor (Titan® 12T)
Transmission
Front
Suspension Arm
Steering Servo
Chassis
Spring Pre-load
Adjuster
QUICK START: GETTING UP TO SPEED
The following guide is an overview of the procedures for getting your model running. Look for the Quick Start logo on the bottom
corners of Quick Start pages.
1. Read the safety precautions on pages 3-4
For your own safety, understand where carelessness and misuse
could lead to personal injury.
2. Charge the battery pack • See page 11
Fully charge the battery pack included with your model.
3. Install the antenna • See page 12
The receiver antenna and antenna tube must be properly installed
before operating your model.
4. Install batteries in the transmitter • See page 11
The transmitter requires 4 AA alkaline or rechargeable batteries
(sold separately).
5. Install the battery pack • See page 12
Install the included battery pack in your model.
7. Check servo operation • See page 14
Make sure the steering servo is working correctly.
8. Range test the radio system • See page 14
The Quick Start Guide is
not intended to replace the
full operating instructions
available in this manual.
Please read this entire
manual for complete
instructions on the proper
use and maintenance of
your model.
Follow this procedure to make sure your radio system works properly
at a distance and that there is no interference from outside sources.
9. Detail your model • See page 5
Apply other decals if desired.
10. Drive your model • See page 18
Driving tips and adjustments for your model.
11. Maintaining your model • See page 25
Follow these critical steps to maintain the performance
of your model and keep it in excellent running condition.
6. Turn on the radio system • See page 13
Make a habit of turning the transmitter on first and off last.
Look for the Quick Start
logo at the bottom of
Quick Start pages.
1/16 SLASH 4WD • 7
THE 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 10)
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.
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, offering
superior resistance to interference and “glitching.”
BEC (Battery Eliminator Circuit) - The BEC can either be in the
receiver or in the ESC. This circuit allows the receiver and servos
to be powered by the main battery pack in an electric model.
This eliminates the need to carry a separate pack of 4 AA
batteries to power the radio equipment.
Current - Current is a measure of power flow through the
electronics, usually measured in amps. If you look at wire like a
garden hose, current is a measure of how much water is flowing
through the hose.
ESC (Electronic Speed Control) - An electronic speed control is
the electronic motor control inside the model. Electronic speed
controls use power more efficiently than mechanical speed
controls so that the battery runs longer. An electronic speed
control also has circuitry that prevents loss of steering and
throttle control as the battery loses its charge.
8 • 1/16 SLASH 4WD
Frequency band - The radio frequency used by the transmitter to
send signals to your model. This model operates on the 2.4GHz
direct-sequence spread spectrum.
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.
NiCad - Abbreviation for nickel-cadmium. The original
rechargeable hobby pack, NiCad batteries have very high
current handling, high capacity, and can last up to 1000
charging cycles. Good charging procedures are required to
reduce the possibility of developing a “memory” effect and
shortened run times.
NiMH - Abbreviation for nickel-metal hydride. Rechargeable
NiMH batteries offer high current handling and much greater
resistance to the “memory” effect. NiMH batteries generally
allow higher capacity than NiCad batteries. They can last up to
500 charge cycles. A peak charger designed for NiMH batteries is
required for optimal performance.
Receiver - The radio unit inside your model that receives signals
from the transmitter and relays them to the servos.
Resistance - In an electrical sense, resistance is a measure of how
an object resists or obstructs the flow of current through it.
When flow is constricted, energy is converted to heat and is
lost. Traxxas power systems are optimized to reduce electrical
resistance and the resulting power-robbing heat.
Servo - Small motor unit in your model that operates the
steering mechanism.
THE TRAXXAS TQ 2.4GHz RADIO SYSTEM
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
used in the electronic speed control detect overloading and
overheating of the transistor circuitry. If excessive temperature is
detected, the unit automatically shuts down to prevent damage
to the electronics.
2-channel radio system - The TQ 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.
Voltage - Voltage is a measure of the electrical potential
difference between two points, such as between the positive
battery terminal and ground. Using the analogy of the garden
hose, while current is the quantity of water flow in the hose,
voltage corresponds to the pressure that is forcing the water
through the hose.
IMPORTANT RADIO SYSTEM PRECAUTIONS
• For maximum range, always point the front of the transmitter
toward the model.
• Do not kink the receiver’s antenna wire. Kinks in the antenna wire
will reduce range.
• DO NOT CUT any part of the receiver’s antenna wire. Cutting the
antenna will reduce range.
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.
• You must extend the antenna wire in the model as far as possible
for maximum range. In doing so, the antenna wire will be extended
outside of the vehicle body. Do not wrap or coil the antenna wire
to keep it from extending out of the body.
• The antenna wire must be installed into the antenna tube to
protect it from getting cut or damaged, which will reduce range.
When installing the antenna wire into the antenna tube, be careful
not to kink the wire by pressing it against the antenna tube cap.
The antenna wire should extend to just below or to within one-half
inch below the cap.
Correct
No
No
No
No
1/16 SLASH 4WD • 9
THE TRAXXAS TQ 2.4GHz RADIO SYSTEM
XL-2.5 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.
RADIO SYSTEM WIRING DIAGRAM
Channel 1
Steering Servo
Motor
(Titan® 12T)
Antenna
TRANSMITTER AND RECEIVER
Steering Wheel
Red/Green Status LED
Set Button
KA
1867
-R00
High-Current
Connector
Receiver
CH3
CH2
CH1
CH1
Steering
Trim
- Channel 3*
- Speed Control
- Steering Servo
- Channel 1*
Channel 2
XL-2.5
Electronic
Speed Control
*Not used.
MOTOR
MOTOR
XL-2.5 ELECTRONIC SPEED CONTROL
Throttle
Trigger
To Motor
Heat Sinks
High-Current
Battery Connector
Power Switch
Battery Compartment
EZ-Set Button
10 • 1/16 SLASH 4WD
LED
THE TRAXXAS TQ 2.4GHz RADIO SYSTEM
INSTALLING TRANSMITTER BATTERIES
CHARGING THE BATTERY PACK
Your TQ 2.4GHz transmitter uses 4 AA batteries. The battery
compartment is located in the base of the transmitter.
The Traxxas Battery Charger is a
fully featured NiMH (Nickle Metal
Hydride) charger. It features 2-amp
charge current for fast charging
and advanced peak detection to
optimize every charge. Take this
compact charger with you wherever
you want to have radio controlled
fun! Do not charge batteries inside
of an automobile. Read the Safety
Precautions section of this manual.
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 15 for
more information on the transmitter status LED codes.
1. Plug the charger into a 12-volt
automotive auxiliary power
socket. The charger is compatible
with 12-volt automotive auxiliary
power sockets only. The LED
on the charger will glow red to
indicate it is ready to charge a
battery.
1
Disconnected
The included charger is
designed for use only with
Traxxas NiMH batteries with iD.
Legacy Traxxas High-Current
Connectors are not compatible
with this charger. DO NOT try to
force legacy connectors into the
charge connector.
2
Connected
3
Charged
2. Connect the battery to begin
charging. Plug the battery into the charger. The charger’s LED will
flash green, indicating that charging has begun. The flashing green
LED on the charger indicates the charge progress.
3. Disconnect the battery when charging is complete. The Traxxas
2-amp DC charger uses sophisticated voltage-detection circuitry to
monitor the battery and automatically stop charging when the pack
has reached maximum
CHARGE PROGRESS
capacity. When the
0 - 25% charged
x1 1 green flash
battery is fully charged,
25% - 50% charged
x2 2 green flashes
the LED will light solid
50% - 75% charged
x3 3 green flashes
green. The battery will
75% or more charged
x4 4 green flashes
be warm in your hand.
Disconnect the battery.
Solid green LED
100% charged
CHARGER LED INDICATION
MEANING
Solid Red LED
Ready for Charging
Slowly Flashing Green LED
Charging (see Charge Progress chart)
Solid Green LED
Battery Fully Charged
Flashing Red LED
Charger error
If the status LED doesn’t light
green on the transmitter, 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
15 to identify the code.
Use the Right Batteries
Your transmitter uses AA
batteries. Use new alkaline
batteries or rechargeable
batteries, such as NiMH (nickelmetal hydride) batteries, in
your transmitter. Make sure
rechargeable batteries are
fully charged according to the
manufacturer’s instructions.
If you use rechargeable
batteries in your transmitter,
be aware that when they begin
to lose their charge, they lose
power more quickly than
regular alkaline batteries.
Caution: Discontinue running
your model at the first sign of
weak batteries (flashing red
light) to avoid losing control.
2-5
1/16 SLASH 4WD • 11
THE TRAXXAS TQ 2.4GHz RADIO SYSTEM
INSTALLING THE RECEIVER ANTENNA
To prevent loss of radio range,
do not kink or cut the black wire,
do not bend or cut the metal tip,
and do not bend or cut the white
wire at the end of the metal tip.
Correct
No
No
No
No
Battery iD
Your model’s included battery
pack is equipped with Traxxas
Battery iD. This exclusive
feature allows Traxxas battery
chargers (sold separately)
to automatically recognize
connected battery packs
and optimize the charge
settings for the battery.
This eliminates the need to
worry over charger settings
and menus for the easiest
and safest charging solution
possible. Visit Traxxas.com to
learn more about this feature
and available Traxxas iD
chargers and batteries.
12 • 1/16 SLASH 4WD
The receiver antenna and antenna tube
Antenna
must be properly installed before operating
Tip
your model. Follow these steps to install the
antenna and antenna tube:
1.5mm
1. Slide the antenna wire into the antenna tube
Wrench
Antenna
to its full extent. When fully inserted, the
Tube
wire should reach to approximately 1/2 inch
below the tube cap. Do not leave any slack in
the antenna wire.
2. Remove the set screw from the opening next
to the antenna mount with the supplied
Set
Screw
1.5mm “L” wrench.
3. Insert the tube into the antenna mount. Take
Antenna
care not to crimp the antenna wire.
Mount
4. Reinstall and tighten the set screw with the
supplied 1.5mm “L” wrench until it is flush
with the top of the opening. 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. Do not
shorten the antenna tube. See the sidebar for more information.
INSTALLING THE BATTERY PACK
Your model includes a 7.2-volt battery pack. To properly balance the
model, it should be installed in the battery compartment on the left
side of the model. Follow these steps to install the battery:
Battery Installation
1. Open the battery
compartment door by pressing
on the release tabs.
2. Install the battery pack with
the battery wires facing the
Battery Wire Slot
rear of the model.
3. Route the battery wire through
the slot near the vent.
4. Close the battery door, making
sure not to pinch the battery
Battery Orientation
wires. Be sure both release tabs
are fully engaged with the door. Do not connect the battery pack to
the ESC at this time. Note: always unplug the battery and remove
from the model after use.
The Traxxas High-Current Connector
Your model is equipped with the Traxxas HighCurrent Connector. Standard connectors restrict
current flow and are not capable of delivering
the power needed to maximize the output of the
XL-2.5. 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.
Using LiPo Packs in Your Model
The XL-2.5 is compatible with 2S and is equipped with Low-Voltage
Detection circuitry to prevent over-discharging. Make certain LowVoltage Detection is activated (see page 16 for details) when using
LiPo packs in your model.
Using an Additional Battery for Increased Run Time
Your model only requires one battery pack, but the chassis can
accept two batteries. Your model can be run with two battery packs
to extend run time. The batteries must be connected in parallel,
which will combine the capacity of the two batteries
(for example, two 7.2-volt 1000mAh packs connected in parallel will
deliver a total capacity of 2000mAh, but total voltage will remain 7.2
volts). This is easily done with a parallel Y-harness (Part #3064, sold
separately). Be sure to only use the Y-harness with identical battery
packs; do not mix batteries of different chemistries or capacities.
When operating your model with two batteries, be careful
to monitor the temperature of the speed control and motor
to prevent overheating. Stop running your model and allow
it to cool if the speed control’s thermal overload protection
activates or if the motor temperature exceeds 200°F.
For best off-road handling with two battery packs, consider
installing stiffer springs on your model. Traxxas offers
accessory springs for this purpose; see the parts list included
with your model for part numbers.
THE TRAXXAS TQ 2.4GHz RADIO SYSTEM
RADIO SYSTEM CONTROLS
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.
TUR
N
GH
RI
T
TU
RN
LE
FT
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.
Neutral
Brake/Reverse
Forward
RADIO SYSTEM RULES
• 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.
3
Turn on the model.
• Always turn on the transmitter before plugging 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
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.
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.
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-2.5 Setup
Programming” on page 16.
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.
Make certain the model’s
receiver antenna is properly
installed before operating
your model. See “Installing
the Receiver Antenna.”
Failure to properly install the
receiver antenna will result in
greatly reduced radio range
and potential loss of control.
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.
6
1/16 SLASH 4WD • 13
THE TRAXXAS TQ 2.4GHz RADIO SYSTEM
7. Gently operate the throttle trigger to ensure that you have
forward and reverse operation, and that the motor stops when
the throttle trigger is at neutral. WARNING: Do not apply full
throttle in forward or reverse while the model is elevated.
USING THE 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.
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 on a block or a stand so that all the tires are
off the ground. 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. The on/off switch is integrated into the speed control. With the
transmitter on, press and release the EZ-Set button (.25 seconds).
The LED will shine RED (see note, below). This turns the model
on. To turn the XL-2.5 off, press and hold the EZ-Set button
until the LED turns off (.5 seconds). Note: If the LED shines
green, Low-Voltage Detection is activated. This may cause poor
performance from the included NiMH battery pack. The default
factory setting is for Low-Voltage Detection to be disabled
(LED shines red). 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 16 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
0°
0°
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
°
-1°
-1.5°
straight ahead. -1
7, 8
14 • 1/16 SLASH 4WD
0°
0°
8. Once adjustments are made, turn off the receiver on your model,
followed by the hand-held transmitter.
Range-Testing the Radio System
Before each running session with your model, you should range-test
your radio system to ensure that it operates properly.
1. Turn on the radio system and check its operation, as described in
the previous section.
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 antenna upright and pointed in
the direction of the model. Pointing the transmitter away
from the model will reduce radio range.
-1.5°
THE 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 50 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.
TRANSMITTER LED CODES
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.
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.
LED Color / Pattern
Name
Notes
Solid green
Normal Driving
Mode
See page 13 for information
on how to use the transmitter
controls.
Slow red
(0.5 sec on / 0.5 sec off)
Binding
See this page for more information
on binding.
Flashing medium red
(0.25 sec on / 0.25 sec off)
Low Battery
Alarm
Put new batteries in the
transmitter. See page 11 for
more information.
Flashing fast red
(0.125 sec on / 0.125 sec off)
Link Failure /
Error
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).
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.
RECEIVER LED CODES
LED Color / Pattern
Name
Notes
Solid green
Normal Driving
Mode
See page 13 for information
on how to use your transmitter
controls.
Slow red
(0.5 sec on / 0.5 sec off)
Binding See this page for more information
on binding.
Flashing fast red
(0.125 sec on / 0.125 sec off)
Failsafe / LowVoltage Detect
Consistent low voltage in the
receiver triggers failsafe so that
there is enough power to center
the throttle servo before it
completely loses power.
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.
1/16 SLASH 4WD • 15
ADJUSTING THE ELECTRONIC SPEED CONTROL
XL-2.5 ESC Specifications
Input Voltage:
4-7 Cells
(4.8V - 8.4V DC)
2S LiPo
Case Size
(W x D x H):
26.5 x 46.5 x 22mm
Weight:
33 Grams
Motor Limit
(380 Size):
10-turns*
On-Resistance
(@Trans):
0.008 Ohms
Reverse Delay:
None
BEC Voltage:
6.0V DC
Power Wire:
16 Gauge / 40mm
Input Harness:
26 Gauge / 130mm
Motor Wires:
16 Gauge / 40mm
Transistor Type:
MOSFET
PWM Frequency:
2300 Hz
*Properly geared
XL-2.5 Battery Settings (Low-Voltage Detection Setting)
The XL-2.5 electronic speed control is equipped with built-in Low-Voltage
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 XL2.5 will limit the power output to 50% throttle. When the battery voltage
attempts to fall below the minimum threshold, the XL-2.5 will shut down all
motor output. The LED on the speed control will slowly blink red, indicating a
low-voltage shutdown. The XL-2.5 will stay in this mode until a fully charged
battery is connected.
Your model includes a Power Cell NiMH battery. The XL-2.5 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-2.5.
3. Press and release the EZ-Set button to turn the XL-2.5 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 the XL-2.5 is on and RED.
2. Press and hold the EZ-Set button (the
A
B
LED will turn off) (A). After ten seconds,
the motor will beep twice and the LED
will shine GREEN. Release the button (B). Red LED: Hold 10 seconds 2 Beeps: LED shines green
3. Low-Voltage Detection is now ACTIVATED.
To disable Low-Voltage Detection (NiMH setting):
1. Make sure the LED on the XL-2.5 is on and GREEN.
2. Press and hold the EZ-Set button (the
A
B
LED will turn off) (A). After ten seconds,
the motor will beep three times and the
LED will shine RED. Release the button (B). Green LED: Hold 10 seconds 3 Beeps: LED shines red
3. Low-Voltage Detection is now DISABLED.
XL-2.5 Setup Programming (Calibrating your ESC and 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.
16 • 1/16 SLASH 4WD
1. Disconnect one of the motor wires between the XL-2.5 and
the motor. This is a precaution to prevent runaway when
the speed control is turned on before it is programmed.
2. Connect a fully charged battery pack to the XL-2.5.
3. Turn on the transmitter (with the throttle
B
at neutral).
4. Press and hold the EZ-Set button (A). The
LED will first turn green and then red.
Once Red
Release the button.
C
5. When the LED blinks RED ONCE, pull the
throttle trigger to the full throttle position
and hold it there (B).
Twice Red
6. When the LED blinks RED TWICE, push the
throttle 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 (depending
on Low-Voltage Detection setting), indicating the XL-2.5 is
on and at neutral (D).
A
Green then Red
D
Solid Green
XL-2.5 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 LowVoltage Detection is disabled.
1. With the transmitter on, press and release the EZ-Set button. The LED will
shine RED. This turns the XL-2.5 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 hightraction surfaces, this could result in transmission or driveline damage.
ADJUSTING THE ELECTRONIC SPEED CONTROL
7. To turn the XL-2.5 off, press and hold the EZ-Set button for 1½ seconds or
until the red LED turns off.
8. The XL-2.5 is equipped with thermal shutdown protection to guard against
overheating caused by excessive current flow. If the operating temperature
exceeds safe limits, the XL-2.5 will automatically shut down. The LED on the
face of the XL-2.5 will rapidly blink red, even if the throttle trigger is moved
back and forth. Once the temperature returns to a safe level, the XL-2.5 will
once again function normally.
XL-2.5 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.
Profile Description
Profile #1 (Sport Mode): 100% Forward, 100% Brakes, 100% Reverse
Profile #2 (Race Mode): 100% Forward, 100% Brakes, No Reverse
Profile #3 (Training Mode): 50% Forward, 100% Brakes, 50% Reverse
Selecting Sport Mode (Profile #1: 100% Forward, 100% Brakes, 100% Reverse)
1.Connect a fully charged battery
pack to the XL-2.5 and turn on your
transmitter.
2. With the XL-2.5 off, press and hold
Green to Red to Off
One blink Red
the EZ-Set button until the LED turns
solid green, then solid red, and then
begins blinking red (indicating the
Profile numbers).
3. When the LED blinks RED ONCE,
Release
Solid Red
release the EZ-Set button.
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.
Selecting Race Mode (Profile #2: 100% Forward, 100% Brakes, No Reverse)
1.Connect a fully charged battery
pack to the XL-2.5 and turn on your
transmitter.
2. With the XL-2.5 off, press and hold
Green to Red to Off
Two blinks Red
the EZ-Set button until the LED turns
solid green, then solid red, and then
begins blinking red (indicating the
Profile numbers).
3. When the LED blinks RED TWICE,
Release
Solid Red
release the EZ-Set button.
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.
Selecting Training Mode* (Profile #3: 50% Forward, 100% Brakes, 50% Reverse)
1.Connect a fully charged battery
pack to the XL-2.5 and turn on your
transmitter.
2. With the XL-2.5 off, press and hold
Three blinks Red
the EZ-Set button until the LED turns Green to Red to Off
solid green, then solid red, and then
begins blinking red (indicating the
Profile numbers).
3. When the LED blinks RED THREE
Release
Solid Red
TIMES, release the EZ-Set button.
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.
LED Codes and Protection Modes
• Solid Green: XL-2.5 power-on light. Low-Voltage Detection is ACTIVATED
(LiPo setting).
• Solid Red: XL-2.5 power-on light. Low-Voltage Detection is DISABLED
(NiCad/NiMH setting). Never use LiPo batteries while Low-Voltage
Detection is disabled.
• Fast Blinking Red: The XL-2.5 is equipped with thermal shutdown protection
to guard against overheating caused by excessive current flow. If the
operating temperature exceeds safe limits, the XL-2.5 will automatically shut
down. Let the XL-2.5 cool. Make sure your model is properly geared for the
conditions.
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 ESC is set to Profile 1
(Sport Mode) as the default.
To quickly change to Profile 3
(Training Mode), with the
transmitter on and the ESC
turned off, press and hold
the SET button until the light
blinks red three times and then
release. For full power, turn off
the ESC then quickly change
back to Profile 1 (Sport
Mode) by pressing and
holding the SET button until
the light blinks red one time
and then releasing.
• Slow Blinking Red (with Low-Voltage Detection on): The XL-2.5 has entered
Low-Voltage Protection. When the battery voltage begins to reach the
minimum recommended discharge voltage threshold for LiPo battery packs,
the XL-2.5 will limit the power output to 50% throttle. When the battery
voltage attempts to fall below the minimum threshold, the XL-2.5 will shut
down all motor output. The LED on the speed control will slowly blink red,
indicating a low-voltage shutdown. The XL-2.5 will stay in this mode until a
fully charged battery is connected.
• Fast Blinking Green: The XL-2.5’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.
• Flashing Red and Green: The XL-2.5 has entered Over Voltage Protection. If a
battery with too high voltage (3S LiPo) is used, the XL-2.5 will go into a failsafe
mode. The XL-2.5 is only compatible with 2S LiPo.
*Patented
1/16 SLASH 4WD • 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.
run time is how the model is driven. Run times may decrease when
the model is driven repetitively from a stop to top-speed and with
repetitive hard acceleration.
• Allow the model to cool for a few minutes between runs. This is
particularly important when using high-capacity battery packs
that allow extended periods of running. Monitoring temperatures
will extend the lives of the battery and motor.
Tips for Increasing Run Time
• Use batteries with the highest mAh rating you can purchase.
• 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.
• Keep the ESC cool. Get plenty of airflow across the ESC heat sinks.
• Lower your gear ratio. Installing smaller pinion gears will lower
your gear ratio and cause less power draw from the motor and
batteries, and reduce overall operating temperatures.
• Maintain your model. Do not allow dirt or damaged parts to cause
binding in the drivetrain. Keep the motor clean.
• 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.
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.
• Use good, common sense whenever you are driving your model.
Intentionally driving in an abusive and rough manner will only
result in poor performance and broken parts. Take care of your
model so that you can enjoy it for a long time to come.
• High-performance vehicles produce small vibrations that may
loosen hardware over time. Frequently check wheel nuts and
other screws on your vehicle to ensure that all hardware remains
properly tightened.
18 • 1/16 SLASH 4WD
• Read and follow all maintenance and care instructions provided
by the manufacturer of your batteries and charger.
• Do not drive the model at night, on public streets, or in large
crowds of people.
• 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.
10
• Use the included charger or a high-quality peak-detecting charger.
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 2000 mAh battery pack
will theoretically run twice as long as a 1000 mAh 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
RUNNING IN WET CONDITIONS
Your 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 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.
DRIVING YOUR MODEL
• 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.
• 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.
Motor Precautions
• 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 full throttle to “sling” the water
out. An easy way to do this is to remove the body and set the model
upside down on a flat surface. Apply full throttle so the tires spin and
throw the excess water out of the holes you cut into the tires.
• 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 below).
2.Remove the batteries.
• Use special care when operating your model in muddy conditions.
Stop operating your model if it appears to be straining due to the
tackiness of the mud or build-up of mud on the chassis. Do not
allow mud to collect on the motor or pack around the motor.
3.Rinse excess dirt and mud off the model with low-pressure water,
such as from a garden hose. DO NOT use a pressure washer
or other high-pressure water. Avoid directing water into the
bearings, transmission, differentials, etc.
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 (4mm or 3/16" diameter) in each tire. Each hole
should be near the tire centerline, 180 degrees apart.
3.Confirm that the receiver box O-ring and cover are installed
correctly and secure. Make sure the screws are tight and the blue
O-ring is not visibly protruding from the edge of the cover.
4.Confirm that your batteries can be used in wet conditions.
5.Use lower gearing (smaller pinion gears) when running in mud,
deep puddles, snow, or other similar situations that will restrict the
tires and put much higher loads on the motor.
4.Blow off the model with compressed air (optional, but
recommended). Wear safety glasses when using compressed air.
5.Remove the wheels from the model.
6.Spray all the bearings, drivetrain, and fasteners with WD-40® or
similar water displacing light oil.
7.Let the model stand or you may blow off with compressed air. Placing
the model in a warm, sunny spot will aid drying. Trapped water and oil
will continue to drip from the model 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.
1/16 SLASH 4WD • 19
DRIVING YOUR MODEL
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.
• Front and rear differential: Remove, disassemble, clean, and regrease the differentials. Refer to your exploded view diagrams for
help with disassembly and reassembly.
• Transmission: Remove, disassemble,
and clean the transmission
components. No grease is required
for the nylon gears. Refer to your
exploded view diagrams for help with
disassembly and reassembly.
• Motor: Remove the motor, clean
with aerosol motor cleaner, and
re-oil the bushings or bearings with
lightweight motor oil. Be sure to wear
eye protection when using spray aerosol cleaners.
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 2.5x8mm screws that secure the wire clamp.
2. Remove the 2.5x8mm screws that secure the receiver box lid to the
chassis. Lift the lid up and toward you to disengage the lid’s tab from
its slot in the chassis.
3. You can now access the receiver. Unplug the servo cables from the
receiver and remove the receiver.
20 • 1/16 SLASH 4WD
Receiver Installation
A
B
1. Route the antenna wire
out of the receiver box
cover (A). Place the cover
on the chassis.
2. Route the servo and speed
C
control leads into the receiver box cover. Use
the molded-in wire guides to align the servo and
speed control leads and antenna wire (B).
3. Apply a small bead of silicone grease (Traxxas
D
part #1647) to the wire clamp (C).
4. Install the wire clamp and tighten the two
2.5x8mm screws securely (D).
5. Lift the receiver box cover and plug
the servo and speed control leads into
E
the receiver (E). Refer to page 10 for the
wiring diagram.
6. Bundle the wires so they fit beneath the
receiver box cover. You may secure the
receiver to the chassis with mounting tape if
you wish, but this is not required. The excess
wire beneath the cover will prevent the
receiver from rattling.
7. Make sure the clear plastic light pipe in the
receiver box is aligned above the LED on the F
receiver.
8. Make sure the blue O-ring is properly seated
into the groove around the receiver cover
base so the cover will not pinch or damage
the O-ring. Snap the receiver box cover into
place (F).
9. Inspect the cover to make sure the O-ring
G
is not visible. If it is, remove the cover and
reposition the O-ring. With the O-ring and
cover properly seated, install the 2.5x8mm
screws and tighten them securely (G).
TUNING ADJUSTMENTS
Your model is factory-tuned for optimum performance in a
wide variety of off-road conditions. To tailor the performance
and handling of your model to suit your driving style and terrain,
the model has a number of adjustable features. Gearing, shock
preload and damping, ride height, and wheel camber can all be
easily adjusted.
SUSPENSION TUNING
Total Travel
Ride Height Adjustment
Your model has threaded
shock bodies that make it
easy to adjust ride height.
Threading the shocks’
preload collars away from
the caps will raise the
Compression 2/3
vehicle’s ride height (the
Ride Height
distance from the chassis
Sag (Droop) 1/3
to the ground), and
reduce the suspension’s
Axle Centerline at Max Compression
Axle Centerline at Ride Height
down travel, also known
Axle Centerline at Max Sag
as ‘sag’ or ‘droop’. This
can be helpful in rugged
terrain where extra
ground clearance is needed. However, the vehicle’s center of
gravity (CG) will be raised, making it less stable.
Threading the shocks’ preload collars toward the caps will lower
the vehicle’s ride height and increase the suspension’s droop. This
will lower the vehicle’s CG and improve handling, but it will also
reduce ground clearance.
From the factory, your model is set up as shown in the illustration
above. At rest, the suspension sags to about 1/3 of its total travel.
This allows the suspension to extend so the wheel can drop
into depressions over rough terrain. This leaves 2/3 of the total
suspension travel for compression when absorbing bumps and
landing jumps. These settings are ideal for most surfaces, and only
small changes in ride height should be required to fine-tune the
vehicle’s handling for your particular surface.
Shock Oil
The 4 oil-filled shocks (dampers) effectively control the suspension
movement by preventing the wheels and tires from continuing
to “bounce” after rebounding from a bump. Changing the oil in
the shocks can vary the suspension damping effect. Changing
the oil to a higher viscosity oil will increase damping. Lowering
the viscosity of the oil will cause the suspension damping to be
reduced. Damping should be increased (with higher viscosity oil)
if the model is bottoming easily over jumps. Damping should
be decreased (with thinner viscosity oil) if the model is hopping
over small bumps and feels unstable. The viscosity of shock oil is
affected by extremes in operating temperature; an oil of certain
viscosity will become less viscous at higher temperatures and more
viscous at lower temperatures. Operating in regions with cold
temperatures may require lower viscosity oil. Your model’s shocks
are filled with SAE 30W oil. Only use 100% silicone oil in the shock.
Replacing Shock Oil
The shocks have to be removed from the vehicle and disassembled
to change the oil.
Important: The shocks are
assembled at the factory with
a center-to-center distance
(between the rod end balls)
of 47.75mm. Any time the
shocks are removed and
disassembled, this distance
should be checked to ensure
proper operation of the
suspension.
47.75mm
1. Remove the lower spring retainer and shock spring.
2. Remove the upper
shock cap. If you cannot
unscrew the cap with
your fingers, pass the
2mm ‘L’ wrench through
the cap’s eyelet so
you can apply more
leverage. Turn the cap
counterclockwise to loosen it.
3. Empty the used shock oil from the shock body.
4.Fill the shock with new silicone shock oil up to the top of the
shock body.
5. Slowly move the piston up and down (always keeping it
submerged in oil) to release the air bubbles. Let the shock sit for
a few minutes to allow any remaining air bubbles to surface.
6.Slowly thread the upper cap with the installed shock bladder
onto the shock body. The excess oil will bleed out of the small
hole in the shock cap.
7. Tighten the shock cap until snug.
1/16 SLASH 4WD • 21
TUNING ADJUSTMENTS
A camber gauge (available
at your local hobby shop)
can be a useful tool for
alignment setting.
To achieve a good starting
point for the slipper clutch,
tighten the slipper clutch
adjusting nut clockwise until
the slipper clutch adjusting
spring fully collapses (do not
over tighten), and then turn
the slipper clutch nut counterclockwise ¾ to 1 turn.
Static Camber Adjustment
The wheels can be set to have either
positive or negative camber (see
illustration below). The camber angle
changes as the wheel moves up and
down through its range of travel. Static
camber is the camber angle at the
wheel when the vehicle is set at its
normal, stationary ride height.
TRANSMISSION TUNING
The suspension pivot balls located in the axle carriers adjust the
static camber. Camber is factory-set at -1°, with the pivot balls
threaded all the way into the suspension arms. To adjust static
camber, insert the supplied 2mm hex wrench into the pivot ball
(compressing the suspension until the arms are parallel to the
ground will allow for easier hex wrench engagement). Negative
camber can be increased by unthreading the lower pivot ball. Zero
camber or positive camber (not recommended) can be achieved
by unthreading the upper pivot ball. Note that camber changes
will also effect the toe angle of the wheel being adjusted.
To adjust the slipper clutch, first
remove the receiver box cover. Next,
remove the single large hex screw
from the motor plate using the supplied 2.5mm wrench. Then
rotate the motor and mount to the side of the model. The slipper
clutch is integrated into the main spur gear on the transmission.
The slipper clutch is adjusted using the spring-loaded locknut on
the slipper shaft. Use the supplied universal wrench. To tighten or
loosen the slipper nut, insert the 1.5mm hex wrench into the hole
in the end of the slipper shaft. This locks the shaft for adjustments.
Turn the adjustment nut clockwise to tighten (less slippage) and
counterclockwise to loosen (more slippage).
Static Camber Base Factory Settings
Front: -1° camber each side
Rear: -1° camber each side
Positive camber
Negative camber
22 • 1/16 SLASH 4WD
Adjusting the Slipper Clutch
Your model is equipped with an
adjustable Torque Control slipper
clutch, which is built into the large
spur gear. The purpose of the slipper
clutch is to prevent over-stressing
of the drivetrain and transmission
gears. It may also be used to regulate
the amount of power sent to the rear
wheels to prevent tire spin. When it
slips, the slipper clutch makes a highpitch, whining noise.
Tuning the Sealed Gear Differentials
The 1/16 Slash 4WD’s front and rear gear differentials allow the left and
right wheels to spin at different speeds while turning so that the tires
do not scuff or skid. This decreases the turning radius and increases
steering performance.
The performance of the differentials can be tuned for different driving
conditions and performance requirements. The differentials are filled
with silicone differential fluid, and 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 a higher viscosity oil in the differential
will reduce the tendency for 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
TUNING ADJUSTMENTS
From the factory, both the differentials are filled with SAE 30,000W
viscosity silicone oil. Only use silicone oil in the differentials. Traxxas
sells SAE 10,000W and SAE 50,000W viscosity oil (see your parts list).
The differentials have to be removed from the vehicle and
disassembled to change/replace oil.
MOTOR AND GEARING
Extensive testing has been done to determine the best gear ratios
for the 1/16 Slash 4WD. The stock gearing balances power, speed,
and efficiency to optimize the performance of the model. However,
you may wish to try different gear ratios in order to customize the
performance of your model. The gearing chart on this page shows
appropriate gearing for the model.
By installing a pinion with fewer teeth, or a spur gear with
more teeth, the transmission’s final drive ratio is increased. This
means greater RPM is required to achieve a given speed. Using
a numerically higher gear ratio will increase torque, but reduce
top speed. Installing a pinion with more teeth, or a spur gear with
fewer teeth, will decrease the final drive ratio, which will generally
increase top speed but reduce torque. However, installing too large
a pinion will “overgear” the model, which will reduce performance
and may overheat the motor and speed control. Use the following
formula to calculate the overall ratio for combinations not listed on
the gear chart:
# Spur Gear Teeth
x 5.04 = Final Gear Ratio
# Pinion Gear Teeth
Motor Installation
To access the motor,
remove the gear cover
by removing the single
screw on the top of the
gear cover. The motor
uses an aluminum
mount for quick, easy
motor access and
gearing adjustment.
To remove the motor, first open the right battery door and slide
out the ESC. Next, remove the single large hex screw using the
supplied 2.5mm wrench. Then rotate the motor and mount to the
side of the model, and slide backward off the post.
Pinion Gear Installation Instructions
1. Remove the motor as described
in Motor Installation.
2. Use a 1.5mm wrench to loosen the
pinion’s set screw. Remove the pinion.
3. Place the replacement pinion gear onto
the motor shaft. Align the set screw hole
with the flat side of the shaft.
4. Thread a 1.5mm set screw into the
pinion gear but do not tighten it yet.
5. Slide the pinion gear down the motor shaft so the wrench shaft
fits into the notch in the motor mount, as shown. Tighten the
set screw.
Adjusting Gear Mesh
Incorrect gear mesh is the most common cause of stripped spur
gears. Gear mesh should be checked and adjusted anytime a gear
is replaced. Access the gears by removing the single screw on the
top gear cover.
Gearing Compatibility Chart
The chart on the left shows a full range
of gear combinations. The stock ratio is
shown in green. The gear combinations
in red are not suitable when using the
included 6-cell battery, speed control,
and motor. These gear combinations
have been included in this chart as
they may be used with certain other
aftermarket equipment combinations.
Spur Gear
Pinion Gear
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.
Your model will generally benefit from higher viscosity oil when
climbing, rock crawling, 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.
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
45
50
55
8.72
8.40
8.10
7.82
7.56
7.32
11.45
10.96
10.50
10.08
9.69
9.33
9.00
8.69
8.40
8.13
15.40
14.59
13.86
13.20
12.60
12.05
11.55
11.09
10.66
10.27
9.90
9.56
9.24
8.94
Stock
Usable range
Not recommended with stock ESC, motor, and batteries
Does not fit
To set the gear mesh,
Motor Mount
cut a narrow strip of
Screw
notebook paper and
run it into the gear
Do Not Loosen
mesh of the motor.
The motor is mounted
to an aluminum motor mount. Loosen the single motor mount
screw with the provided 2.5mm wrench to slide the motor mount.
1/16 SLASH 4WD • 23
TUNING ADJUSTMENTS
Slide the motor and pinion gear into the spur
gear. Retighten the motor mount screw and
then remove the strip of paper. You should
be able to run a fresh strip of paper through
the gears without binding them. Gear mesh
can be checked visually by removing the
gear viewing port cover.
Gear Viewing Port
Cover Removal
WHEELS AND TIRES
Your model uses 12mm axle hexes that allow many types of
aftermarket tires and wheels to 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.
Experimentation with different types of tires is recommended
to see which ones work the best on the terrain where the model
is run. 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. Foam tires can be fitted for use on
pavement or indoor carpet tracks. See your parts list for accessory
wheels and tires.
24 • 1/16 SLASH 4WD
MAINTAINING YOUR MODEL
Your model requires timely maintenance in order to stay in top
running condition. The following procedures should be taken
very seriously.
Inspect the vehicle for obvious damage or wear. Look for:
1. Cracked, bent, or damaged parts
2. Check the wheels and steering for binding.
3. Check the operation of the shock absorbers.
4. Check the wiring for any frayed wires or loose connections.
5. Check the mounting of the receiver and servo(s) and
speed control.
6. Check the tightness of the wheel nuts with a wrench.
7. Check the operation of the radio system, especially the
condition of the batteries.
8. Check for any loose screws in the chassis structure
or suspension.
9. Inspect the gears for wear, broken teeth, or debris lodged
between the teeth.
10. Check the tightness of the slipper clutch.
11. Check the tightness of the front pivot balls.
Other periodic maintenance:
• Slipper clutch pad (friction material):
Under normal use,
Nut
Spur
the friction material
Gear
in the slipper clutch
Spring
should wear very
Clutch
Ball
slowly. If the slipper
Pad
Bearing
clutch fails to provide
consistent performance
or slips even when
the adjustment nut is fully
tightened, disassemble the slipper
clutch and replace the slipper pad. Inspect the
spur gear and pressure plate for wear or damage and
replace if necessary.
• Chassis: Keep the chassis clean of accumulated dirt and grime.
Periodically inspect the chassis for damage.
• 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 #7062.
Always wear eye protection
when using compressed
air or spray cleaners and
lubricants.
• Suspension: Periodically inspect the model for signs of damage,
such as bent or dirty suspension pins, bent turnbuckles, loose
screws, and any signs of stress or bending. Replace components
as needed.
• Driveline: Inspect the driveline for signs of wear such as worn
drive yokes, dirty axle half shafts, and any unusual noise or
binding. Remove the gear cover, inspect the spur gear for
wear, and check the tightness of set screws in the pinion gears.
Tighten, clean, or replace components as needed.
Clutch
Hub
• 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.
11
1/16 SLASH 4WD • 25
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