This manual contains the instructions you will need to operate and
maintain your model so that you can enjoy it for years to come. We want
you to feel confident that you own one of the best-performing models
in the market and that it is backed by a team of professionals who aim to
provide the highest level of factory support possible. Traxxas models are
about experiencing total performance and satisfaction, not just with your
model, but also with the company that stands behind it.
We know you’re excited about getting your new model on the road, but
it’s very important that you take some time to read through the Owner’s
Manual. This manual contains all the necessary set-up and operating
procedures that will allow you to unlock the performance potential that
Traxxas engineers designed into your model. Also be sure to read and
follow the precautions and warnings in this manual and on any labels or
tags attached to your model. They are there to educate you on how to
operate your model safely and also get maximum life and performance
from 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
ensure you receive the highest level of customer satisfaction possible.
We truly want you to enjoy your new model!
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.
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.
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/support. You may also e-mail customer
support with your question at support@Traxxas.com. Join thousands of
registered members in our online community at Traxxas.com.
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!
Traxxas.com/register
Quick Start
This manual is designed with a Quick Start path
that outlines the necessary procedures to get
your model up and running in the shortest time possible. If you are an
experienced R/C enthusiast you will find it helpful and fast. Be sure and
read through the rest of the manual to learn about important safety,
maintenance, and adjustment procedures. Turn to page 8 to begin.
*Toll-free support is available to U.S. residents only.
2 • SLASH 4X4 ULTIMATE
Page 3
WHY IT’S THE ULTIMATE
The next-generation Slash 4X4 Ultimate represents Ready-To-Race® performance at the
highest level. The Slash 4X4 Ultimate pushes the performance envelope; its new Low-CG
chassis delivers superior handling and maximum corner speed and new 13mm bore GTR
hard-anodized aluminum shocks provide consistent damping and smooth suspension
action lap-after-lap. The result is lightning-fast steering response and smooth, consistent
damping that raises the bar even higher on Slash 4X4 handling and precise control.
The TQi Radio System with Docking Base and Slash 4X4 Ultimate’s factory-installed
telemetry enable real-time data capture and set the standard for tuning ease and versatility.
To truly make this the Ultimate Slash 4X4, the specs are completed with nearly every
factory option available, from aluminum suspension components to a sealed, silicone filled
differential. Simply put, it’s the best of the best.
AluminumC-hubs and Steering Blocks
6807R: Series 4 4200mAh NiMH Battery
6807L: 2-cell 5000mAh LiPo battery
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 Information
The radiated output power of the Traxxas LP Device is below the Industry Canada (IC) radio frequency exposure limits. The antenna for this transmitter must not be co-located with any other transmitters except in accordance with FCC and Industry Canada multi-transmitter
procedures. Co-location means having a separation distance of less than 20 cm between transmitting antennas.
Traxxas
1100 Klein Road
Plano, Texas 75074
Phone: 972-265-8000
Toll-free 1-888-TRAXXAS
Front and Rear Sway Bars
Optional Included
Center Differential
Internet:
Traxxas.com
E-mail:
support@Traxxas.com
Page 4
SAFETY PRECAUTIONS
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.
Gearing and battery choice
(see LiPo Batteries, right)
affect the skill level of the
model. See chart below.
Gearing: Stock Pinion
Battery: 7-Cell NiMH
*
Voltage
: 8.4V
mAh: 3000+mAh
Gearing: Opt. Pinion
Battery: 7-Cell NiMH
*
Voltage
: 8.4V
mAh: 3000+mAh
Gearing: Stock Pinion
Battery: 3S 20C LiPo
*
Voltage
: 11.1V
mAh: 5000+ mAh
Gearing: Opt. Gearing
Battery: 3S 20C LiPo
*
Voltage
: 11.1V
*Nominal
mAh: 5000+ mAh
See the gearing chart on
page 26 for more information.
1
4 • SLASH 4X4 ULTIMATE
All of us at Traxxas want you to safely enjoy your new model. Operate your
model sensibly and with care, and it will be exciting, safe, and fun for you and
those around you. Failure to operate your model in a safe and responsible
manner may result in property damage and serious injury. The precautions
outlined in this manual should be strictly followed to help ensure safe
operation. You alone must see that the instructions are followed and the
precautions are adhered to.
Important Points to Remember
• Your model is not intended for use on public roads or congested areas where
its operation can conflict with or disrupt pedestrian or vehicular traffic.
• Never, under any circumstances, operate the model in crowds of people. Your
model is very fast and could cause injury if allowed to collide with anyone.
• Because your model is controlled by radio, it is subject to radio interference
from many sources that are beyond your control. Since radio interference can
cause momentary losses of radio control, always allow a safety margin in all
directions around the model in order to prevent collisions.
• The motor, battery, and speed control can become hot during use. Be careful
to avoid getting burned.
• Don’t operate your model at night, or anytime your line of sight to the model
may be obstructed or impaired in any way.
• Most importantly, use good common sense at all times.
Speed Control
Your model’s electronic speed control (ESC) is an extremely powerful
electronic device capable of delivering high current. Please closely follow these
precautions to prevent damage to the speed control or other components.
• Disconnect the Battery: Always disconnect the battery or batteries from the
speed control when not in use.
• Insulate the Wires: Always insulate exposed wiring with heat shrink tubing to
prevent short circuits.
• Water and Electronics Do Not Mix: The 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.
• Do not attempt to remove the heat sink from the ESC. The heat sink is
factory-installed and its removal will cause permanent damage to the ESC.
• Don’t Get Burned: The ESC and motor can become extremely hot during use,
so be careful not to touch them until they cool. Supply adequate airflow for
cooling.
• Use the Factory-Installed Stock Connectors: Do not change the battery and
motor connectors. Improper wiring can cause fire or damage to the ESC.
Please note that modified speed controls can be subject to a rewiring fee
when returned for service.
• No Reverse Voltage: The ESC is not protected against reverse polarity voltage.
• Always adhere to the minimum and maximum limitations of the speed
control as stated in the specifications table on page 17. If your ESC operates on
two batteries, do not mix battery types and capacities. Use the same voltage
and capacity for both batteries. Using mismatched battery packs could
damage the batteries and electronic speed control.
WARNING! CAUTION! DANGER!
FIRE HAZARD! Charging and discharging batteries has the potential for
fire, explosion, serious injury, and property damage if not performed per the
instructions. In addition, Lithium Polymer (LiPo) batteries pose a SEVERE risk of
fire if not properly handled per the instructions. Before use, read and follow all
manufacturer’s instructions, warnings, and precautions. Never allow children under 14 years old
to charge or use LiPo batteries without the supervision of a responsible, knowledgeable adult.
• While charging or discharging, ALWAYS place the battery (all types of batteries) in a fire
retardant/fire proof container and on a non-flammable surface such as concrete.
• ALWAYS charge batteries in a well-ventilated area.
• REMOVE flammable items and combustible materials from the charging area.
• ONLY use a LiPo balance charger with a balance adapter to charge LiPo batteries.
• If any battery or cell is damaged in any way, DO NOT charge, discharge, or use the battery.
• BEFORE you charge, ALWAYS confirm that the charger settings exactly match the battery
type (chemistry), specification, and configuration to be charged.
• DO NOT exceed the maximum manufacturer recommended charge rate.
• DO NOT disassemble, crush, short circuit, or expose the batteries to flame or other sources
of ignition.
• NEVER leave batteries unattended while charging.
LiPo Batteries
Lithium Polymer (LiPo) batteries are becoming popular for use in R/C models
due to their compact size, high energy density, and high-current output.
However, these types of batteries require special care and handling procedures
for long life and safe operation. Warning: LiPo batteries are intended only for
advanced users that are educated on the risks associated with LiPo battery
use. Traxxas does not recommend that anyone under the age of 14 use or
handle LiPo battery packs without the supervision of a knowledgeable and
responsible adult.
Your model is able to use LiPo batteries. LiPo batteries have a minimum safe
discharge voltage threshold that should not be exceeded. The electronic speed
control is equipped with built-in Low-Voltage Detection, which 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.
Page 5
SAFETY PRECAUTIONS
Low-Voltage Detection on the speed control is just one part of a
comprehensive plan for safe LiPo battery use. It is critical for you,
the user, to follow all other instructions supplied by the battery
manufacturer and the charger manufacturer for proper charging,
use, and storage of LiPo batteries. Make sure you understand
how to use your LiPo batteries. Be aware that Traxxas shall not
be liable for any special, indirect, incidental, or consequential
damages arising out of the installation and/or use of LiPo batteries
in Traxxas models. If you have questions about LiPo battery usage,
please consult with your local hobby dealer or contact the battery
manufacturer. As a reminder, all batteries should be recycled at the
end of their useful life.
TERMS OF USE - The buyer assumes all risk associated with using this
product. Traxxas, its affiliates, manufacturers, distributors, and retail
partners cannot control the use, application, charging, or installation
of this product and shall not be held responsible for any accident,
injury to persons, or damage to property resulting from the use of
this product.
After reading all, if you do not agree with these terms and conditions
and are not prepared to accept complete liability for the use of this
product, return this product immediately in new/unused condition
to your place of purchase. Your retailer absolutely cannot accept
product for return or exchange if it has been used in any way.
If you have any questions, call Traxxas Customer Support at
1-888-TRAXXAS (1-888-872-9927). Outside the US, call +1-972-2658000 or e-mail support@traxxas.com.
Important Warnings for users of Lithium Polymer (LiPo)
batteries: Lithium Polymer (LiPo) batteries are significantly
more volatile than other rechargeable batteries.
ONLY use a Lithium Polymer (LiPo) balance charger with a balance
adapter (such as the Traxxas EZ-Peak Plus Charger #2933 or the
2-Cell /3-Cell LiPo Balance Charger #2935) to charge LiPo batteries.
Never use NiMH or NiCad type chargers or charge modes to charge
LiPo batteries. The use of a NiMH or NiCad charger or charge mode
will damage the batteries and may cause fire and personal injury.
Never charge LiPo battery packs in series or parallel with this
charger. Charging packs in series or parallel may result in improper
charger cell recognition and an improper charging rate that may
lead to overcharging, cell imbalance, cell damage, and fire.
• ALWAYS inspect your LiPo batteries carefully before charging.
Look for any loose leads or connectors, damaged wire insulation,
damaged cell packaging, impact damage, fluid leaks, swelling (a
sign of internal damage), cell deformity, missing labels, or any other
damage or irregularity. If any of the above conditions are observed,
do not charge or use the battery pack.
• Do not store or charge LiPo batteries with or around other batteries
or battery packs of any type, including other LiPos.
• Store and transport your LiPo batteries in a cool, dry place. Do not
store in direct sunlight. Do not allow the storage temperature to
exceed 140°F or 60°C or the cells may be damaged and risk of fire
created.
• DO NOT disassemble LiPo batteries or cells.
• DO NOT attempt to build your own LiPo battery pack from loose
cells.
• ALWAYS proceed with caution and use good common sense at all
times.
Charging and Handling Precautions/Warnings
• ALWAYS proceed with caution and use good common sense at all
times.
• Children require adult supervision while using this charger.
• DO NOT let any exposed battery contacts or wires touch each other.
This will cause the battery to short circuit and create the risk of fire.
• While charging, ALWAYS place the battery (all types of batteries) in
a fire retardant/fire proof container and on a non-flammable surface
such as concrete.
• NEVER charge batteries on wood, cloth, carpet, or on any other
flammable material.
• ALWAYS charge batteries in a well-ventilated area.
• REMOVE flammable items and combustible materials from the
charging area.
• DO NOT operate the charger in a cluttered space or place objects on
top of the charger or battery.
• If any battery or battery cell is damaged in any way, DO NOT charge,
discharge, or use the battery.
• Keep a Class D fire extinguisher nearby in case of fire.
• BEFORE you charge, ALWAYS confirm that the charger settings
exactly match the type (chemistry), specification, and configuration
of the battery to be charged.
• DO NOT use the 2-3 cell LiPo charger #2935 to charge NiMH
batteries.
• DO NOT exceed the battery manufacturer’s maximum
recommended charge rate.
• DO NOT disassemble, crush, short circuit, or expose the batteries or
cells to flame or any other source of ignition.
• If a battery gets hot to the touch (temperature greater than
110°F/43°C) during the charging process, immediately disconnect
the battery from the charger and discontinue charging.
• DO NOT leave the charger and battery unattended while charging,
discharging, or anytime the charger is ON with a battery connected.
If there are any signs of a malfunction, unplug the power source
and/or stop the charging process immediately.
• ALWAYS unplug the charger from the wall outlet and disconnect
the battery when not in use.
• DO NOT operate the charger inside of an automobile.
• AVOID short-circuits by always connecting the charge cable to
the charger first and then to the battery to charge or discharge.
Remember to always reverse this procedure when disconnecting
the battery.
• NEVER connect more than one battery at a time to the charger.
• DO NOT disassemble the charger.
• REMOVE the battery from your model or device before charging.
• DO NOT expose the charger to water or moisture.
• ALWAYS store battery packs safely out of the reach of children and
pets.
• DO NOT charge batteries if you observe ANY of the following
conditions:
- Batteries that are fully charged or have been only slightly
discharged.
- Batteries that are hot (temperature greater than 110°F/43°C)
- Batteries that are not expressly stated by the manufacturer to be
suitable to accept the power output (voltage and amperage) the
charger delivers during the charging process.
- Batteries that are damaged or defective in any way. Examples of
damage or defects include, but are not limited to: batteries with
dented cells, damaged or frayed wires, loose connections, fluid
leaks, corrosion, plugged vents, swelling, cell deformity, impact
damage, missing labels, melted components, or any other signs of
damage.
- Battery packs that have been altered from original manufacturer
configuration.
- Non-rechargeable batteries (explosion hazard)
- Batteries that have an internal charge circuit or a protection circuit.
SLASH 4X4 ULTIMATE • 5
Page 6
ANATOMY OF THE SLASH 4X4 ULTIMATE
Half Shaft
Turnbuckle
(Rear Camber Link)
Rear Body Mount
Rear Sway Bar
Rear Bumper
Rear Hub
Carrier
Battery Compartment
Battery Hold-Down
Battery
(LiPo battery standard on
Model 6807L only. 6807R
includes Series 4 NiMH battery)
Traxxas High-Current
Connector
Front Body Mount
Front Suspension
Arm
Front
Sway Bar
Chassis
Drive
Shaft
Steering Block
(Axle Carrier)
Caster Block
(C-Hub)
Front
Shock Tower
Front Bumper
Rear Shock Tower
Rear Suspension Arm
Slipper Clutch
RPM Sensor Wire
Motor Temperature Sensor
6 • SLASH 4x4 ULTIMATE
Motor
(Velineon 3500)
Electronic Speed
Control (VXL-3s)
Nerf Bar
Battery Voltage Sensor Wire
Receiver Box
LED Light
Pipe
Antenna
Mount
Steering
Servo
Turnbuckle (Toe Link)
Shock
(Damper)
Turnbuckle
(Front Camber Link)
Half Shaft
Page 7
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.
For more information on
batteries, see Use the Right Batteries on page 12.
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
• Philips screwdriver
• Soldering iron
7-cell NiMH battery pack*NiMH battery charger*
Required Equipment
#6807R; #6807L
LiPo battery*
Batteries packaged separately.
Ask your dealer for details.
Battery charger*
*Battery and charger style are subject to change and may vary from images.
SLASH 4X4 ULTIMATE • 7
Page 8
The Quick Start Guide is
not intended to replace the
full operating instructions
available in this manual.
Please read this entire
manual for complete
instructions on the proper
use and maintenance of
your model.
QUICK START: GETTING UP TO SPEED
The following guide is an overview of the procedures for getting your model running. Look for the Quick Start logo on the bottom
corners of Quick Start pages.
1. Read the safety precautions on page 4 6. Check servo operation • See page 15
For your own safety, understand where carelessness and misuse
could lead to personal injury and product damage.
2. Charge the battery pack • See pages 12 & 13 7. Range test the radio system • See page 15
Fully charge the included battery pack. Begin charging
your battery right away.
3. Install batteries in the transmitter • See page 12 8. Detail your model • See sidebar, page 9
The transmitter requires 4 AA alkaline or rechargeable batteries.Apply other decals if desired.
4. Install the battery pack in the model • See page 13 9. Drive your model • See page 19
Your model requires a fully charged battery pack.Driving tips and adjustments for your model.
5. Turn on the radio system • See page 14 10. Maintaining your model • See page 24
Make a habit of turning the transmitter on first and off last.Follow these critical steps to maintain the performance
Make sure the steering servo is working correctly.
Follow this procedure to make sure your radio system works properly at
a distance and that there is no interference from outside sources.
of your model and keep it in excellent running condition.
Look for the Quick Start
logo at the bottom of
Quick Start pages.
8 • SLASH 4X4 ULTIMATE
Page 9
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
INTRODUCTION
Your model includes the latest Traxxas TQi 2.4GHz transmitter with
Traxxas Link™ Model Memory. The transmitter’s easy-to-use design
provides instant driving fun for new R/C enthusiasts, and also offers
a full compliment of pro-level tuning features for advanced users
– or anyone interested in experimenting with the performance of
their model. The steering and throttle channels feature adjustable
Exponential, End Points, and Sub-Trims. Steering and braking Dual
Rate are also available. Many of the next-level features are controlled
by the Multi-Function knob, which can be programmed to control
a variety functions. The detailed instructions (page 32) and Menu
Tree (page 35) included in this manual will help you understand and
operate the advanced functions of the new TQi radio system. For
additional information and how-to videos, visit Traxxas.com.
RADIO AND POWER SYSTEM TERMINOLOGY
Please take a moment to familiarize yourself with these radio and
power system terms. They will be used throughout this manual.
A detailed explanation of the advanced terminology and features of
your new radio system begins on page 32.
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 TQi system
automatically selects and locks onto an open frequency and offers
superior resistance to interference and “glitching.”
BEC (Battery Eliminator Circuit) - The BEC can either be in the
receiver or in the ESC. This circuit allows the receiver and servos
to be powered by the main battery pack in an electric model. This
eliminates the need to carry a separate pack of 4 AA batteries to
power the radio equipment.
Brushless Motor - A D/C brushless motor replaces the brushed motor’s
traditional commutator and brush arrangement with intelligent
electronics that energize the electromagnetic windings in sequence
to provide rotation. Opposite of a brushed motor, the brushless
motor has its windings (coils) on the perimeter of the motor can and
the magnets are mounted to the spinning rotor shaft.
Cogging - Cogging is a condition sometimes associated with
brushless motors. Typically it is a slight stutter noticed when
accelerating from a stop. It happens for a very short period as the
signals from the electronic speed control and the motor synch
Current - Current is a measure of power flow through the
ESC (Electronic Speed Control) - An electronic speed control is the
Frequency band - The radio frequency used by the transmitter to
kV Rating - Brushless motors are often rated by their kV number. The
LiPo - Abbreviation for Lithium Polymer. Rechargeable LiPo battery
mAh – Abbreviation for milliamp hour. A measure of the capacity of
Neutral position - The standing position that the servos seek when
NiCad - Abbreviation for nickel-cadmium. The original rechargeable
with each other. The VXL-3s electronic speed control is optimized
to virtually eliminate cogging.
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.
electronic motor control inside the model. The VXL-3s electronic
speed control uses advanced circuitry to provide precise, digital
proportional throttle control. Electronic speed controls use power
more efficiently than mechanical speed controls so that the
batteries run longer. An electronic speed control also has circuitry
that prevents loss of steering and throttle control as the batteries
lose their charge.
send signals to your model. This model operates on the 2.4GHz
direct-sequence spread spectrum.
kV rating equals no-load motor rpm with 1 volt applied. The kV
increases as the number of wire turns in the motor decreases. As the
kV increases, the current draw through the electronics also increases.
The Velineon 3500 motor is a 10-turn, 3500 kV motor optimized for
the best speed and efficiency in lightweight 1/10 scale models.
packs are known for their special chemistry that allows extremely
high energy density and current handling in a compact size. These
are high-performance batteries that require special care and
handling. For advanced users only.
the battery pack. The higher the number, the longer the battery
will last between recharges.
the transmitter controls are at the neutral setting.
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.
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.
8
SLASH 4X4 ULTIMATE • 9
Page 10
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
To prevent loss of radio range
do not kink or cut the black wire,
do not bend or cut the metal tip,
and do not bend or cut the white
wire at the end of the metal tip.
Correct
NoNoNo
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. The Velineon
power system is optimized to reduce electrical resistance and the
resulting power-robbing heat.
Rotor - The rotor is the main shaft of the brushless motor. In a
brushless motor, the magnets are mounted to the rotor, and the
electromagnetic windings are built into the motor housing.
Sensored - Sensored refers to a type of brushless motor that
uses an internal sensor in the motor to communicate rotor position
information back to the electronic speed control. The VXL-3s electronic
speed control is able to use sensored motors when applications benefit
from them (such as some sanctioned racing classes).
Sensorless - Sensorless refers to a brushless motor that uses
advanced instructions from an electronic speed control to provide
smooth operation. Additional motor sensors and wiring are not
required. The VXL-3s electronic speed control is optimized for
smooth sensorless control.
Servo - Small motor unit in your model that operates the steering
mechanism.
Solder Tabs - Accessible, external contacts on the motor that allows
for easy wire replacement. The Velineon 3500 is equipped with
solder tabs.
Transmitter - The hand-held radio unit that sends throttle and
steering instructions to your model.
Trim - The fine-tuning adjustment of the neutral position of the
servos made by adjusting the throttle and steering trim knobs on
the face of the transmitter. Note: The Multi-Function knob must be
programmed to serve as a throttle trim adjustment.
Thermal Shutdown Protection - Temperature sensing electronics
used in the VXL-3s 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 TQi 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.
• Extend the antenna wire in the model as far as possible for
maximum range. It is not necessary to extend the antenna wire out
of the body, but wrapping or coiling the antenna wire should be
avoided.
• Do not allow the antenna wire to extend outside the body without
the protection of an antenna tube, or the antenna wire may get
cut or damaged, reducing range. It is recommended to keep the
wire inside the body (in the antenna tube) to prevent the chance
of damage.
10 • SLASH 4X4 ULTIMATE
Page 11
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
Your model is equipped with the newest TQi 2.4 GHz transmitter
with Traxxas Link™ Model Memory. The transmitter has two
channels for controlling your throttle and steering. The
receiver inside the model has 5 output channels. Your model is
equipped with one servo and an electronic speed control.
TRANSMITTER AND RECEIVER
Set Button
Red/Green Status LED
see page 33 for more info
Throttle Neutral
Adjust
Steering Wheel
Menu Button
Steering
Trim
Multi-Function
Knob
Throttle
Trigger
Link
Button
Sensor Expansion
Port
LED
MODEL WIRING DIAGRAM
Traxxas High-Current
Connector (Male)
to Battery
Channel 2
Electronic
Speed Control
Brushless Motor
(see side bar for proper
motor wiring)
Antenna
Receiver
RPM
Sensor
Channel 1* - CH1
Steering Servo - CH1
Speed Control - CH2
From Voltage/Temp Senor Port - CH4
Voltage/Temp Senor Port - V/T
Channel 3* - CH3
Battery* - BATT/CH5
RPM Sensor Port - RPM
* Not used
VXL-3S ELECTRONIC SPEED CONTROL
Traxxas High-Current
Connector (Male)
to Battery
to Motor
ESC/Motor Wiring Diagram
Telemetry
Voltage Wire
Velineon
Motor
Cap
Channel 1
Steering Servo
Power SwitchBattery Compartment
Cooling Fan
Connector
(for optional use)
LED
Auxiliary Port
(for optional use)
Heat Sink
EZ-Set Button
(On/Off Button)
Receiver cable
(RX wire)
SLASH 4X4 ULTIMATE • 11
Page 12
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
If the radio system doesn’t
appear to work when the
transmitter and receiver
switches are turned on, check
for correct battery installation.
Use the Right Batteries
Your transmitter uses AA
batteries. Use new alkaline
batteries. Do not use
rechargeable AA cells to
power the TQi transmitter,
as they will not provide
sufficient voltage for optimum
transmitter performance.
The #3037 Traxxas 5-cell
rechargeable battery pack
can be used in place of 4
AA alkaline cells. The #3037
battery has the same voltage
(6 volts) as four alkaline cells.
Caution: Discontinue running
your model at the first sign of
weak batteries (flashing red
light on the transmitter) to
avoid losing control.
2, 3
12 • SLASH 4X4 ULTIMATE
INSTALLING TRANSMITTER BATTERIES
Your TQi transmitter uses 4 AA batteries. The battery compartment is
located in the base of the transmitter.
1.Remove the battery compartment door by
pressing the tab and sliding the door open.
2. Remove the battery holder. Install the batteries in the battery holder.
Correct orientation is indicated in the battery holder. Make sure the
battery holder is plugged into the transmitter.
3. Reinstall the battery door and snap it closed.
4. Turn on the transmitter and check the status LED for a solid green light.
Note: Switching the transmitter on with your mobile device installed
will automatically launch the Traxxas Link application.
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. Note: The Docking Base will charge your mobile
device as long as the transmitter is turned on.
TQi Docking Base Battery Charging Jack
The Docking Base incorporates a standard
charging jack for use with optional Traxxas
rechargeable NiMH battery pack #3037 and
wall charger #6545 (each sold separately).
Note: The charger and charging jack will not
charge rechargeable AA batteries installed in
the standard 4-cell AA battery holder supplied with the TQi. Only use
the charger and charging jack with the #3037 Traxxas NiMH battery.
CHARGING THE NiMH BATTERY PACK
(Model #6807R)
The included charger can be used to charge the provided battery pack.
The battery pack should be removed from the vehicle before charging.
Do not leave the battery unattended while charging. For faster charging,
the optional Traxxas EZ-Peak Plus (#2933) can charge at 4 amps to reduce
charging time to only 45 minutes! It is normal for the battery to become
slightly warm as it nears full-charge, but the battery should never
become hot. If the battery becomes hot, disconnect it from the charger
immediately. NEVER charge a LiPo battery using a NiMH charger
1
2
3
1. Plug the charger into the wall. The LED on the charger will glow green.
2. Connect the provided 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 ½ hours. The LED
will turn green when the battery is fully charged. Disconnect the
battery from the charger after charging.
Using Other Batteries
Your model is equipped with a state of the art, high-performance power system.
It is designed to be able to flow large amounts of power with the least amount
of restriction. The benefits are drastically increased speed and acceleration. However,
this places extra demands on the battery and electrical system connections. For best
performance, your model requires the use of battery packs that have cells rated for
high discharge and use high-quality, low-resistance assembly techniques, such as the
included Traxxas Power Cell Battery Pack. Cheaply made battery packs do not retain their
performance characteristics after repeated uses in high-powered electric applications.
They will lose their punch and run time and may require frequent replacement. In
addition, poor-quality, high-resistance cell connectors could fail, requiring disassembly
and repair. The main goal is to reduce all sources of high resistance in the pack. This
includes the connector, the wire, and the bars attaching the cells together. High pack
resistance will create additional heat and rob you of the full power the cells are capable of
producing. We recommend using Traxxas Power Cell batteries for best performance. For
a complete list of the Power Cell packs for your model visit: Traxxas.com/powercell
.
Page 13
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
CHARGING THE LiPo BATTERY PACK
(Model #6807L)
Before charging the provided 2-Cell LiPo battery, please read and
understand all safety precautions at the beginningof this manual.
The included charger can be used to charge the provided battery
pack. The supplied charger has an output rate of 800mAh (0.8 amps),
and may require up to seven hours to fully charge a battery. For faster
charging, the optional Traxxas EZ-Peak Plus can chargeat up to 6
amps to reduce charging time to an hour or less. WARNING: ONLY
use a charger designed for LiPo batteries. NEVER charge a LiPo
battery using a NiMH charger or a NiMH charging mode.
1. Insert the AC power cord into the charger.
2. Insert the AC cord into a wall socket (110-240V). All three LEDs
will light steady green and flash red to indicate the charger is ready
to charge.
3. Plug your Traxxas Power Cell 2-cell LiPo into the charger using
its balance plug. LEDs 1 and 2 will glow steady red, indicating
charging is underway. Do not leave battery and charger
unattended while charging.
4. This charger is not designed to charge two packs simultaneously.
If two batteries are plugged into the charger at the same time,
the charger will shut down. Unplug the charger and remove any
installed batteries to reset it.
5. When a cell is completely charged, its corresponding LED will glow
steady green. The 2-cell pack is fully charged when LEDs 1 and 2
are steady green.
Note: If the charger detects any of the battery’s cells are already fully
charged when you plug it into the charger, the LEDs corresponding to the
charged cells will not glow steady red and will default to steady green to
indicate those cells are fully charged.
INSTALLING THE BATTERY PACK
Install the battery pack with the battery
wires facing the rear of the model.
Insert the tabs of the battery holddown into the slots in the rear holddown retainer (A). Swing the battery
hold down towards the chassis and
snap (lock) the end into the front holddown retainer (B).
Using a Different Battery Configurati
The battery hold-down is capable of
accommodating either side-by-side
racing style packs or the more common
stick packs. The battery compartment
is configured for stick packs from the
factory. The number on each side of the
hold-down indicates the battery height
in millimeters that the 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 hold-down 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 #7426X, is available (sold
separately). For shorter batteries (6-cell), use the included foam block
in the front of the battery compartment.
25mm side: Standard NiMH stick pack setup
23mm side: Side-by-side NiMH pack setup
on
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
Battery Compartment Specs:
• 166mm (6.54") long
x 49.5mm (1.95") wide
• Height with stock strap:
23mm (.91") or 25mm (.94")
• Height with Part #7426X
options battery standoffs:
Up to 44mm (1.73")
Note: There is some flex with
the battery strap. It is possible
to fit slightly taller batteries in
the compartment.
4
Part #3080
2-Pack Female
Part #3070
2-Pack Male
SLASH 4X4 ULTIMATE • 13
Page 14
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
Remember, always turn the
TQi transmitter on first and
off last to avoid damage to
your model.
Automatic Fail-Safe
The TQi transmitter and
receiver are equipped with
an automatic fail-safe system
that does not require user
programming. In the event
of signal loss or interference,
the throttle will return to
neutral and the steering will
hold its last commanded
position. If Fail-Safe activates
while you are operating
your model, determine the
reason for signal loss and
resolve the problem before
operating your model again.
When rechargeable batteries
begin to lose their charge,
they will fade much faster
than alkaline dry cells. Stop
immediately at the first sign
of weak batteries. Never turn
the transmitter off when the
battery pack is plugged
in. The model could run out
of control.
5
14 • SLASH 4X4 ULTIMATE
RADIO SYSTEM CONTROLS
RADIO SYSTEM RULES
•
Always turn your TQi transmitter on first and off last. This procedure
will help to prevent your model from receiving stray signals from
another transmitter, or other source, and running out of control. Your
model has electronic fail-safes to prevent this type of malfunction,
but the first, best defense against a runaway model is to always turn
the transmitter on first and off last.
• Always use new or freshly charged batteries for the radio system.
Weak batteries will limit the radio signal between the receiver
and the transmitter. Loss of the radio signal can cause you to lose
control of your model.
1
Always turn your
transmitter on first.
2
Plug in the battery.
3
Turn on the model.
In order for the transmitter and receiver to bind to one another,
•
the receiver in the model must be turned on within 20 seconds
of turning on the transmitter. The transmitter LED will flash fast
red, indicating a failure to link. If you miss it, simply turn off the
transmitter and start over.
• Always turn on the transmitter before plugging in the battery.
RADIO SYSTEM BASIC ADJUSTMENTS
Throttle Neutral Adjustment
The throttle neutral adjustment is located
on the transmitter face and controls the
forward/reverse travel of the throttle trigger.
Change the adjustment by pressing the
button and sliding it to the desired position.
There are two settings available:
50/50: Allows equal travel for both acceleration and reverse.
70/30: Allows more throttle travel (70%) and less reverse travel (30%).
Note:
We strongly recommend to leave this control in its factory
location until you become familiar with all the adjustments and
capabilities of your model.
position, turn the transmitter off before adjusting the neutral
position. You will need to reprogram your electronic speed control
to recognize the 70/30 setting.Turn to VXL-3s Setup Programming
on page 17 for instructions.
Steering Trim
The electronic steering trim located on the
face of the transmitter adjusts the neutral
(center) point of the steering channel.
Multi-Function Knob
The Multi-Function knob can be
programmed to control a varietyof functions.
From the factory, the Multi-Function knob
controls steering sensitivity, also known as exponential or “expo.”
When the knob is turned counterclockwiseall the way to the left
(default position), expo is off and steering sensitivity will be linear
(the most commonly used setting). Turning the knob clockwise will
“add expo” and decrease the steering sensitivity in the initial range
of steering wheel travel left or right from center. For more detail on
steering exponential, refer to page 16.
To change the throttle neutral adjust
Page 15
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
USING THE RADIO SYSTEM
The TQi Radio System has been pre-adjusted at the factory. The
adjustment should be checked before running the model, in case of
movement during shipping. Here’s how:
1. Turn the transmitter switch on. The status LED on the transmitter
should be solid green (not flashing).
Elevate the model on a block or a stand so that all the tires are
2.
off the ground. Make sure your hands are clear of the moving
parts of the model.
3.
Plug the battery 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 VXL-3s 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 will cause erratic
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 17 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.
Gently operate the throttle trigger to ensure that you have
forward and reverse operation, and that the motor stops when
the throttle trigger is at neutral. WARNING: Do not apply full
throttle in forward or reverse while the model is elevated.
8. Once adjustments are made, turn off the receiver on your model,
followed by the hand-held transmitter.
Range-Testing the Radio System
Before each running session with your model, you should range-test
your radio system to ensure that it operates properly.
1.
Turn on the radio system and check its operation as described in
the previous section.
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.
• Higher Speeds Require Greater Distance
The faster you drive your Slash 4X4 Ultimate, the more quickly
it will near the limit of radio range. At 60mph, a model can
cover 88 feet every second! It’s a thrill, but use caution to keep
your model in range. If you want to see your Slash 4X4 Ultimate
achieve its maximum speed, it is best to position yourself in
the middle of the truck’s running area, not the far end, so you
drive the truck towards and past your position. In addition to
maximizing the radio’s range, this technique will keep your
model closer to you, making it easier to see and control.
No matter how fast or far you drive your Slash 4X4 Ultimate,
always leave adequate space between you, the model, and others.
Never drive directly toward yourself or others.
TQi Binding Instructions
For proper operation, the transmitter and receiver must be
electronically ‘bound.’ This has been done for you at the factory.
Should you ever need to re-bind the system or bind to an additional
transmitter or receiver, follow these instructions. Note: the receiver
must be connected to a 4.8-6.0v (nominal) power source for binding
and the transmitter and receiver must be within 5 feet of each other.
1. Press and hold the transmitter’s SET button as you switch the
transmitter on. The transmitter’s LED will flash red slowly.
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.
6, 7
SLASH 4X4 ULTIMATE • 15
Page 16
TRAXXAS TQi RADIO & VELINEON POWER SYSTEM
To prevent loss of radio
range do not kink or cut the
black wire, do not bend or
cut the metal tip, and do not
bend or cut the white wire at
the end of the metal tip.
Correct
NoNoNo
2. Press and hold the receiver’s LINK button as you switch on the
speed control by pressing the EZ-Set button.
3. When the transmitter and receiver’s LEDs turn solid green, the
system is bound and ready for use. Confirm that the steering and
throttle operate properly before driving your model.
Steering Sensitivity (Exponential)
The Multi-Function knob on the TQi transmitter has been
programmed to control Steering Sensitivity (also known as
exponential). The standard setting for Steering Sensitivity is
“normal (zero exponential),” with the dial full left in its range of
travel. This setting provides linear servo response: the steering
servo’s movement will correspond exactly with the input from
the transmitter’s steering wheel. Turning the knob clockwise from
center will result in “negative exponential” and decrease steering
sensitivity by making the servo less responsive near neutral, with
increasing sensitivity as the servo nears the limits of its travel range.
The farther you turn the knob, the more pronounced the change
in steering servo movement will be. The term “exponential” comes
from this effect; the servo’s travel changes exponentially relative
to the input from the steering wheel. The exponential effect is
indicated as a percentage—the greater the percentage, the greater
the effect. The illustrations below show how this works.
Normal Steering Sensitivity (0% exponential)
In this illustration, the steering servo’s travel (and with it, the steering
motion of the model’s front wheels) corresponds precisely with the
steering wheel. The ranges are exaggerated for illustrative purposes.
By turning the Multi-Function knob clockwise, the steering sensitivity
of the model will be decreased. Note that a relatively large amount
of steering wheel travel results in a smaller amount of servo travel.
The farther you turn the knob, the more pronounced the effect
becomes. Decreased steering sensitivity may be helpful when driving
on low-traction surfaces, when driving at high speed, or on tracks
that favor sweeping turns where gentle steering inputs are required.
The ranges are exaggerated for illustrative purposes.
Turning Range
at Transmitter
Effective Turning
Range on Model
Experiment! Try varying degrees of exponential. It’s easy to go back
to “zero” if you don’t like the effect. There’s no wrong way to adjust
exponential. Any setting that makes you more comfortable with
your car’s handling is the “right setting.”
SETTING UPTHE 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
the antenna wire intothe bottom of the
antenna tube until thewhite 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 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 side bar for
more information. Do not shorten the antenna tube.
The Velineon VXL-3s 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 VXL-3s will limit the power output to 50% throttle. When the
battery voltage attempts to fall below the minimum threshold, the VXL-3s
will shut down all motor output. The LED on the speed control will slowly
blink red, indicating a low voltage shutdown. The VXL-3s will stay in this
mode until a fully charged battery is connected.
Your model includes a Power Cell NiMH battery. The VXL-3s 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 LowVoltage 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 throttleat neutral).
2. Connect a fully charged battery pack to the VXL-3s.
3. Press and release the EZ-Set button to turn the VXL-3s 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 VXL-3s is on and red.
2. Press and hold the EZ-Set button for ten seconds.
The LED will turn off and then light green. Also, a
“rising” musical tone will be emitted from the motor.
3.
Low-Voltage Detection
is nowACTIVATED.
To disable Low-Voltage Detection (NiMH setting):
1. Make sure the LED on the VXL-3s is on and green.
2. Press and hold the EZ-Set button for ten seconds.
The LED will turn off and then light red. Also, a
“falling” musical tone will be emitted from the motor.
3. Low-Voltage Detection is now DISABLED.
Transmitter Adjustments for the VXL-3s ESC
Before attempting to program your VXL-3s ESC, it is important to make sure
that your transmitter is properly adjusted (set back to the factory defaults).
Otherwise, you may not get the best performance from your speed control.
The transmitter should be adjusted as follows:
If the transmitter settings have been adjusted, reset them to the factory defaults.
1. Turn the transmitter off.
2. Hold both MENU and SET.
3. Turn the transmitter on.
4. Release MENU and SET. The transmitter LED will blink red.
5. Press SET to clear settings. The LED will turn solid green and the transmitter is
restored to default.
VXL-3s 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 back in, and start over.
A
1. Connect a fully charged battery pack to the VXL-3s.
2. Turn on the transmitter (with thethrottle at neutral).
3. Press and hold the EZ-Set button(A). The LED will first turn
green and then red. Release the EZ-Set button.
4. When the LED blinks RED ONCE, pull the throttle
B
Green then Red
trigger to the full throttle position and hold it
there (B).
5. When the LED blinks RED TWICE, push the throttle
trigger to the full reverse and hold it there (C).
Once Red
C
6. 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 VXL-3s is on and at neutral (D).
Twice Red
D
VXL-3s Operation
To operate the speed control and test programming, place
the vehicle on a stable block or stand so that all of the drive
Once Green
wheels are off the ground. Disconnect motor wires “A”and “C” (see page 11),this will ensure the motor does not drive the wheels during testing. Do not test
programming without disconnecting the motor wires.
Note that in steps 1-7 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 1-7 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 VXL-3s on.
2. Apply forward throttle. The LED will turn off until full throttle power is
reached. At full throttle, the LED will illuminate 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 illuminate 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 illuminate red.
6. To stop, return the throttle trigger to neutral. Note that there is programmed
delay when changing from reverse to forward. This prevents damage to the
transmission on high-traction surfaces.
7. To turn the VXL-3s off, press the EZ-Set button until the LED turns
off (.5 seconds).
VXL-3s Specifications
Input voltage:
4.8-11.1V (4 to 9 cells NiMH
or 2S to 3S LiPo)
Supported Motors:
Brushed
Brushless
Sensorless brushless
Motor limit:
None
Continuous current:
200A
Peak current :
320A
BEC voltage:
6.0V DC
Transistor type:
MOSFET
Battery connector:
Traxxas High-Current
Connector
Motor connectors:
TRX 3.5mm bullet
connectors
Motor/Battery Wiring:
12-gauge Maxx
Thermal Protection:
2-stage thermal shutdown
See page 27 for advanced
VXL-3s features and setup.
®
Cable
SLASH 4X4 ULTIMATE • 17
Page 18
ADJUSTING THE ELECTRONIC SPEED CONTROL
Patent-Pending 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 VXL-3s 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 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
SET button until the light
blinks red one time and
then releasing.
The VXL-3s has built in
programming that prevents
accidental activation of
reverse while in forward
motion and vice-versa. You
must come to a complete
stop, release the throttle
trigger, then apply opposite
throttle to engage the motor
in the desired direction.
18 • SLASH 4X4 ULTIMATE
VXL-3s Profile Selection
The speed control is factory set to Profile #1 (100% forward, brakes, and
reverse). To disable reverse (Profile #2) or to allow 50% forward and 50%
reverse (Profile #3), follow the steps below. The speed control should be
connected to the receiver and battery, and the transmitter should be
adjusted as described previously. The profiles are selected by entering the
programming mode.
2. With the VXL-3s off, press and hold
the EZ-Set button until the LED turns solid
green, then solid red, and then begins
blinking red (indicating the Profile numbers).
Green to Red to Off
C
One blink Red
D
3. When the LED blinks red once, release
the EZ-Set button.
4. The LED will blink and then turn solid green
(Low-Voltage Detection ACTIVE) or red (Low-
Release
Solid
Voltage Detection DISABLED).The model is ready to drive.
2. With the VXL-3s off, press and hold
the EZ-Set button until the LED turns solid
green, then solid red, and then begins
blinking red (indicating the Profile numbers).
Green to Red to Off
C
Two blinks Red
D
3. When the LED blinks red twice, release
the EZ-Set button.
4. The LED will blink and then turn solid green
(Low-Voltage Detection ACTIVE)or red (Low-
Release
Solid
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
BA
VXL-3s and turn on your transmitter.
2. With the VXL-3s off, press and hold the EZ-
Set button until the LED turns solid green,
then solid red, and then begins blinking
Three blinks RedGreen to Red to Off
red (indicating the Profile numbers).
3. When the LED blinks red three
C
D
times, release the EZ-Set button.
4. The LED will blink and then turnsolid green
(Low-Voltage Detection ACTIVE) or red (Low-
Voltage Detection DISABLED). The model is
Release
Solid
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: VXL-3s power-on light. Low-Voltage Detection is
ACTIVATED (LiPo setting).
• Solid Red: VXL-3s power-on light. Low-Voltage Detection is
DISABLED (NiCad/NiMH setting). Never use LiPo batteries while
Low-Voltage Detection is disabled.
• Fast Blinking Red: Thermal Shutdown Protection Stage 1. If the
motor has lower than normal power and the VXL-3s is hot, the VXL3s has entered Stage 1 Thermal Shutdown Protection to guard
against overheating caused by excessive current flow. If the motor
has no power and the VXL-3s is very hot, the VXL-3s has entered
Stage 2 Thermal Shutdown Protection and has automatically
shut down. Let the VXL-3s cool. Make sure your model is properly
geared for the conditions (see page 26).
• Slow Blinking Red (with Low-Voltage Detection on): The VXL-3s
has entered Low-Voltage Protection. When the battery voltage
begins to reach the minimum recommended discharge voltage
threshold for LiPo battery packs, the VXL-3s will limit the power
output to 50% throttle. When the battery voltage attempts to
fall below the minimum threshold, the VXL-3s will shut down all
motor output. The LED on the speed control will slowly blink red,
indicating a low voltage shutdown. The VXL-3s will stay in this
mode until a fully charged battery is connected.
• Alternating; Blinks Red then Green: If the motor has no power,
the VXL-3s has entered OverVoltage Protection. If a battery with
too high voltage is used, the VXL-3s will go into a fail-safe mode.
Warning: If input voltage exceeds approximately 20-volts,
the ESC may be damaged. Do not exceed 12.6 maximum peak
input voltage.
• Blinking Green: The VXL-3s is indicating the transmitter
Throttle Trim is incorrectly set. If the Multi-Function knob is
set to throttle trim, then adjust the Throttle Trim to the middle
“0” setting.
See page 27 for Advanced VXL-3s features.
Page 19
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 battery packs that
allow extended periods of running. Monitoring temperatures will
extend the lives of the batteries and motors. See page 28 for advanced
user information on monitoring temperatures.
• 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, sluggish servos (slow to return to center), or ESC shutdown
due to the Low-Voltage Detection circuitry. Stop immediately at the
first sign of weak batteries. When the batteries in the transmitter
become weak, the power light will begin to flash red. 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.
• When using the supplied optional pinion for top-speed running, limit
your driving to paved surfaces only. Running in grass and off-road
could cause excessive loads on the electrical system in the model.
• 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.
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 3000mAh battery pack will theoretically
run twice as long as a 1500mAh 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 top speed and with repetitive hard acceleration.
Tips for Increasing Run Time
• Use batteries with the highest mAh rating you can purchase.
• Use a high-quality peak-detecting charger.
• Read and follow all maintenance and care instructions provided by the
manufacturer of your batteries and charger.
• Keep the VXL-3s cool. Get plenty of airflow across the ESC heat sink.
• Use the correct Low-Voltage Detection setting for your battery (see page 17). Low-Voltage Detection can be off for maximum NiMH battery
runtime. Never use LiPo batteries while Low-Voltage Detection is
turned off.
• Maintain your model. Do not allow dirt or damaged parts to cause
binding in the drivetrain. Keep the motor clean.
• Lower your gear ratio. Installing a smaller pinion or larger spur gear
will lower your gear ratio, causing less power draw from the motor and
battery and reducing overall operating temperatures.
mAh Ratings and Power Output
The mAh rating of the battery can effect your top-speed performance.
The higher capacity battery packs experience less voltage drop under
heavy load than low mAh rated packs. The higher voltage potential
allows increased speed until the battery begins to become discharged.
9
SLASH 4X4 ULTIMATE • 19
Page 20
DRIVING YOUR MODEL
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. Do
not use LiPo batteries in wet conditions.
• The Traxxas TQi 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.
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 center-line, 180° apart.
3. Confirm that the RX 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, as low as 9T or spur gear as
large as 54T) when running in mud, deep puddles, snow, or other
similar situations that will restrict the tires and put much higher loads
on the motor.
Motor Precautions
• Velineon 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.
• 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.
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 a pressure washer or other highpressure water. Avoid directing water into the bearings, differentials, 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.
20 • SLASH 4X4 ULTIMATE
Page 21
DRIVING YOUR MODEL
7. Let the truck stand or you may blow it 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.
• Differentials: Remove, disassemble, clean, and re-grease the
differential components. Use a light coating of wheel bearing grease
(from an auto parts store) on the metal gear teeth. Refer to your
exploded view diagrams for help with disassembly and reassembly.
• Velineon motor: After operating your model in wet or muddy
conditions, remove the motor and clean any mud or dirt from
the bearings. To access the rear bearing, remove the plastic cap
with thumb pressure, or gently pry the cap off with a flat-blade
screwdriver. To prevent corrosion and ensure maximum bearing life,
lubricate the bearings with a light oil (available at your local hobby
store). Following these steps will extend motor life and maintain
peak performance. 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. To remove the wireclamp, remove the
two 2.5x12mm socket-head cap screws.
2. To remove the cover, remove the
two 3x12mm button-head cap screws.
3. To remove the receiver from the box, unplug
the servo cables from the receiver and remove the receiver.
Receiver Installation
1. Install the receiver into the box. Make
sure the LED light pipe is aligned with
the receiver LED.
2. Install the servowires and antenna
through the cover and plug the wires
into the receiver.
3. Make sure the O-ring isproperly seated into the
groove in the receiver box so that the cover will
not pinch it or damage it any way.
4. Install the cover and tighten the two 3x12mm
button-head cap screws securely.
5. Inspect the cover to make sure thatthe
O-ring seal is not visible.
6. Arrange the wires neatly using thewire
guides in the receiver box.
7. Apply small bead of silicone grease
(Traxxas part #1647) to the wire clamp.
8. Install the wire clamp and tighten the two
2.5x12mm cap screws securely.
SLASH 4X4 ULTIMATE • 21
Page 22
BASIC TUNING ADJUSTMENTS
All of the toe links are
installed on the truck so the
left-hand thread indicators
point to the same direction.
This makes it easier to
remember which way to
turn the wrench to increase
or decrease toe link length
(the direction is same at all
four corners). Note that the
groove in the hex indicates
the side of the toe link with
the left-hand threads.
Once you become familiar with driving your model, you might needto make adjustments for better driving performance.
ADJUSTING GEAR MESH
Incorrect gear mesh is the mostcommon cause of stripped spurgears. Gear mesh should be checkedand adjusted anytime a gear isreplaced. Access the gears by
removing the single screw on the
gear cover.
Toset the gear mesh, loosen the
motor screw. Cut a narrow strip
of notebook paper and run it into
the gear mesh. Slide the motor
and pinion gear into the spur gear.
Strip of
Paper
Motor
Screw
Retighten the motor screws and then
remove the strip of paper. You should
be able to run a fresh strip of paper
through the gears without binding them.
ADJUSTING THE CAMBER
The camber angle of both the front and rear wheels can be adjusted
with the camber links (upper turnbuckles). Use a square or rightangle triangle to set the camber accurately. Adjust the front wheels
to 1° to 2° of negative camber. In the rear, adjust the wheels to 1° to
2° of negative camber. These adjustments should be set with the
truck positioned at its normal ride height.
1°-2°1°-2°
ADJUSTING THE TOE-IN
Toe-in refers to the angle of the wheels as viewed from above.
Geometry and alignment specs play an important roll 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.
Front Toe-In: For increased stability add 1° to 2° of toe in to eachfront wheel. Use the turnbuckles to adjust the alignment.
1°-2°1°-2°
Toe-in
Front Toe Base FactorySettings
Front: 0°
Rear: 2.5° toe-in each side
Rear Toe-In: You will notice that the Slash 4X4
Ultimate’s rear wheels point inward slightly,
which aids in stability. This is called toe-in, and is
measured in degrees. If the wheels point straight
ahead, parallel with the chassis’ centerline, then the
wheels have “zero toe-in.” The Slash 4x4 Ultimate is
equipped with aluminum rear stub axle carriers that
provide 4° of rear toe-in. You will note that the axle
carriers are labeled “L” and “R,” to indicate left and
right. The axle carriers may be installed on the opposite sides (L on
0°
4°
22 • SLASH 4X4 ULTIMATE
Camber
Static Camber Base Factory Settings
Front: 1° negative camber each side
Rear: 1° negative camber each side
Aluminum axle carriers
installed as labeled:
4° toe-in
Aluminum axle
carriers reversed:
1° toe-in
Plastic axle carriers
(not L/R dependent):
2.5° toe-in
Page 23
BASIC TUNING ADJUSTMENTS
the right side, R on the left side) to provide 1° of toe-in.Slash 4x4 Ultimate also includes the plastic rear stub axle carriers asused on the standard Slash 4X4 Ultimate, which offer 2.5° of toe-in.They can be installed on either side of the truck, as they are not left/right specific.
In general, increasing toe-in improves stability, while reducing toe-inmay help “loosen up” the truck’s handling to improve corner speed,especially on high-grip tracks. Experiment to see what works bestfor your track and driving style.
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 suspension of your model has been set up for off-road
performance (position 2 on the front suspension arms and position
3 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 3 on the suspension arms.
2. Move the rear shocks to position 4 or 5 on the suspension arms.
3. Reduce the ride height by loosening the upper spring
pre-load spacer.
4. Position 1 is not recommended for front or rear.
CENTERING YOUR SERVO
If you have removed the servo horn from your model’s steering servo,
or the servo has been removed for service or cleaning, the servo must
be re-centered prior to installation of the servo horn or installation of
the servo in the model.
1. Remove the front module from the vehicle to access the
steering servo.
2. Connect the steering servo to channel 1 on the receiver. Connect
the electronic speed control (ESC) to channel 2. The white wire on
the servo lead is positioned towards the receiver’s LED.
3. Turn the transmitter power switch on. Make certain the
transmitter’s batteries are not depleted.
4. Turn the transmitter’s steering trim knob to the center “0” position.
5. Disconnect motor wires “A” and “C” (see page 11) to prevent the
motor from turning during the next steps. Connect a fresh battery
pack to the speed control and turn on the ESC (see page 17). The
servo’s output shaft will automatically jump to its center position.
6. Install the servo horn ontothe servooutput shaft. The servo horn shouldbe aligned onespline clockwise fromperpendicular alignment with theservo case (not the chassis).
7. Check servo operation by turningthe steering wheel back and forth toensure that the mechanism has been centered properly and youhave equal throw in both directions. Use the transmitter’s steeringtrim knob to fine-tune the position of the servo horn so the modeltracks straight when the steering wheel is at neutral.
ADJUSTING THE SLIPPER CLUTCH
The model is equipped with an
adjustable slipper clutch that 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
whiningnoise. To adjust the slipper,
use the included wrench to hold
the adjusting nut and roll the model
forward to tighten and reverse to
loosen.
Place the model on a high-traction surface, such as carpet . Adjust the
slipper so that you can hear it slip for approximately two feet from a
standing, full throttle start. (Learn more about adjusting the slipper
clutch in the sidebar.)
To achieve a good starting
point for the slipper clutch
in this model, remove the
slipper gear assembly from
your model (see page 25 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.
SLASH 4X4 ULTIMATE • 23
Page 24
MAINTAINING YOUR MODEL
Always wear eye protection
when using compressed
air or spray cleaners and
lubricants.
High-performance vehicles
generate small vibrations
while driving. These
vibrations may loosen
hardware over time and
require attention. Always
check your wheel nuts and
other hardware and tighten
or replace when necessary.
Your model requires timely maintenance in order to stay in top
running condition. The following procedures should be taken
very seriously.
Frequently 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.
•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.
•Steering: Over time, you may notice increased looseness in
the steering system. The tie rod ends may wear out from use
(Traxxas Parts #2742 and #5525). Replace these components as
needed to restore factory tolerances.
•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 #7463.
•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. 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.
10
24 • SLASH 4X4 ULTIMATE
Page 25
Suspension and slipper clutch assembly removal
The Slash 4X4 Ultimate 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 Slash 4X4 Ultimate Service and Support Guide for complete assembly
diagrams.
•Removing the front suspension module
1. Remove the 3x15 button-head cap screw from the steering link under the chassis.
2. Remove the two 3x6 flat-head cap screws from the front chassis.
3. Remove the two 4x12 button-head cap screws from the front of the chassis.
4. Remove the two 4x10 button-head cap screws from the top of the chassis.
5. Pull the front suspension assembly away from the chassis.
• Removing the rear suspension module
(Slipper clutch assembly removal)
1. Remove the two 4x12 button-head cap screws from the top of the chassis.
2. Remove the two 4x14 button-head cap screws from the bottom of the chassis.
3. Pull the rear suspension assembly away from the chassis.
4. The slipper clutch assembly can now be removed.
maintaining your model
Rear Suspension
Assembly
Front Suspension
Assembly
4x12BCS
3x6 FCS
4x10BCS
3x15BCS
4x12BCS
Slipper Clutch
Assembly
4x14BCS
SLASH 4X4 ULTIMATE • 25
Page 26
ADVANCED TUNING ADJUSTMENTS
Gearing Compatibility Chart:
The chart below shows recommended
gear combination ranges for your model.
Spur Gear
505254
9
--17.08
10
--15.37
11
-13.45 13.97
12
-12.33 12.81
13
10.95 11.38 11.82
14
10.16 10.57 10.98
15
9.499.8710.25
16
8.899.259.61
17
8.378.719.04
18
7.918.228.54
Pinion Gear
19
7.497.798.09
20
7.127.407.68
21
6.787.057.32
22
6.476.73-
23
6.196.43-
24
5.93--
25
5.69--
26
---
Thick black border indicates stock settings.
Preferred gearing for off-road and
extreme terrain, 3S LiPo
Out of Box Setup, recommended for most
running, 6 or 7-cell NiMH, 2S LiPo
Recommended for high-speed running on
smooth hard surfaces only
Included optional gearing, for high-speed
running only
Fits, for high-speed runs only, not
recommended for use with NiMH batteries
High-current LiPo batteries required.
Doesn’t fit
26 • SLASH 4X4 ULTIMATE
CAMBER GAIN
Slash 4X4 Ultimatehas provisions for adjusting the camber gain geometry
of the front andrear suspension. “Camber gain” refers to an increase
in camber angle as the suspension is compressed. The camber gain of
the vehiclecan be changed by moving the camber link attachment to a
different horizontal mounting position. Adjusting the camber gain will
alter thetire contact patch as the suspension is compressed. Making
the camber link shorter will increase the camber gain. This makes the
vehicle more stable over bumps, but reduces traction on smooth surfaces.
Lengthening the camber links has the opposite effect.
Front Camber Gain
Front
To increase the camber gain on the front
suspension, move the inner camber link
ends out to Position 3. Position 4 is the
stocksetting.
RearCamber Gain
To increase the camber gain on the rear
Rear
suspension, move the inner camber link
endsout to a different attachment hole
(Position 4 in the image. Position 5 is the
stock setting).
Once you make adjustments to the camber
gain, you may need to re-adjust the static camber to suit
your tuning needs.
ROLL CENTER
Slash 4X4 Ultimate has provisions for adjusting the roll center geometry
of the front and rear suspension. Roll center refers to the virtual axis
around which the chassis will roll when subjected to cornering forces.
The roll center of the vehicle can be raisedby mounting the inner
ends of the camber links in a lower position. Raising the roll center will
effectively increase the roll stiffness of the vehicle (similar to installing
sway bars). Adding roll resistance to one end of the vehicle will tend
to add traction to the opposite end. For example, increasing roll
resistance in the rear will provide more traction for the front wheels
and potentially more steering. Raising the roll center on the front and
rear equally will increase overall roll resistance without changing the
handling balance. The default factory locations are designed to make
the truck easier and more forgiving to drive and less likely to traction
roll in turns.
Front Roll Center
Front
C-hub
To lower the roll center on thefront suspension, move theinner camber link ends up toa different attachment hole(Position 1 or 2 – Position 4 isthe stock setting). To lower the roll center further, move the outer camberlink ends to the lower position on the C-hub.
Bump steer correction- “Bump steer” refers to unwanted steeringinputs caused by suspension movement. Slash 4X4’s suspensiongeometry is designed to minimize bump-steer. Ifyou are using the upper hole on the C-hub (image
A
A) and either of the two lower holes on the shocktower (positions 3 or 4 in “Front” image), the tie rodball should be oriented with the large flat end on top(stock position - image B). When usingany other combination of camber linkattachment points, the tie rod ballshould be oriented with the large flatend on the bottom (C).
Rear Roll CenterTo lower the roll center on the rear
BC
Rear
suspension, relocate the inner camber linksto one of the upper holes (position 1, 2, or3 in image) in the upper row of the rear
camber link attachment.
Once youmake adjustments to the roll
center, youmay need to re-adjust the static
camber to suit your tuning needs.
GEARING
One of the more significant advantages to your model’s transmission
is the extremely wide range of available gear ratios. Changing the
gearing allows you to fine tune the speed of the model and control
the temperatures of the battery pack and motor. Use a lower gear
ratio (numerically larger) to reduce current draw and temperatures.
Use a higher gear (numerically lower) to increase top speed. Use the
following formula to calculate the overall ratio for combinations not
listed on the gear chart:
# Spur Gear Teeth
# Pinion Gear Teeth
x 2.85 = Final Gear Ratio
Page 27
ADVANCED TUNING ADJUSTMENTS
When using higher gear ratios, it is important to monitor the
temperatures of the battery and motor. If the battery is extremely
hot (150°F), and/or the motor is too hot to touch (200°F), your
model is probably over-geared and drawing too much current. 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. Note:
Check and adjust gear mesh if a spur and/or pinion gear is changed.
This model is equipped with a Velineon 3500 motor. The gear
combination that comes stock on each model provides good overall
acceleration and top speed. If you want more top speed, install the
included optional large pinion gear (more teeth). The included
optional large pinion gear is intended for high-speed running on
hard surfaces, and this gearing is not recommended for off-road or
repetitive starting and stopping.
LIPO BATTERIES
LiPo batteries are intended only for the most advanced users that are
educated on the risks associated with LiPo battery use. It is critical to
follow all 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.
See Safety Precautions and warnings on page 4 for more information.
ADVANCED VXL-3s ESC SETUP
The VXL-3s electronic speed control is capable of controlling brushed,
brushless, and sensored brushless motors. The VXL-3s auto-detects
the motor type and has numerous built-in safeguards to prevent
damage from mis-wiring or damaged wiring.
Sensorless Brushless Motors
Sensorless motors are the easiest and most-reliable brushless motor
type. The VXL-3s is optimized to deliver the smoothest possible
sensorless motor performance. The Velineon 3500 is a sensorless
brushless motor (see sidebar for specs). The wiring (phase alignment)
of the motor determines its direction of rotation. Refer to the wiring
diagram on page 11.
Sensored Brushless Motors
The VXL-3s is fully compatible with sensored brushless motors.
Sensor motors use an additional sensor installed in the motor to
#6808
Slash 4x4
Pinion/Spur
Battery
Nominal Voltage
mAh
Skill Level
* Stock Gearing
** Included Optional Pinion
35+mph
13/54*
7-Cell NiMH
8.4V
4000+ mAh
40+mph
18/54**
7-Cell NiMH
8.4V
4000+ mAh
40+mph
19/54
2S LiPo
7.4V
4000+ mAh
45+mph
13/54*
3S LiPo
11.1V
5000+ mAh
60+mph60+mph
19/5419/54
3S LiPo
11.1V
5000+ mAh
communicate rotor position to the speed control. The VXL-3s features
a covered auxiliary port that accepts aftermarket motor sensors on
the front face of the unit.
The VXL-3s has built-in Sensor Motor Backup
Protection to preventdamage if the sensor
leads or phase leads become disconnected.
If a sensor lead becomes damaged or is
disconnected, the VXL-3s automatically
switches to sensorless brushless operation.
The VXL-3s also features Sensor Phase Detection. When a sensored
brushless motor is connected, the VXL-3s will check for proper wiring.
If the motor phase wiring is incorrect, theVXL-3s will not apply power
to the motor until it is wired correctly.
Optional sensored brushless motor wiring diagram:
Brushed Motors
For the ultimate in versatility, the VXL-3s has no motor limit when
used with a brushed motor. This allows you to use any readily
available 540 or 550 size brushed motor in your VXL-3s equipped
vehicle. Always be sure to follow all break-in and maintenance
instructions set forth by the motor manufacturer. The VXL-3s
Velineon 3500 Specs
Type:
Sensorless brushless
RPM/volt:
3500 (10-turn)
Magnet type:
Ultra High-Temperature
Sintered Neodymium
Connection type :
3.5mm bullet
Wire size:
12 Gauge
Max RPM:
50,000
Diameter:
36mm (1.42) (540 size)
Length:
55mm (2.165)
Weight:
262g (9.24oz)
Always use the proper length
motor bolts. The standard
motor mounting bolts
are 3x8mm. Using motor
bolts that are too long can
interfere with the motor’s
rotation and damage the
motor’s internals!
The VXL-3s features Locked
Rotor Protection. The VXL-3s
checks to make sure the
motor is turning. If the motor
is locked or damaged, the
ESC will enter fail-safe until
the motor is free to rotate.
SLASH 4X4 ULTIMATE • 27
Page 28
ADVANCED TUNING ADJUSTMENTS
28 • SLASH 4X4 ULTIMATE
automatically detects what kind of motor it is connected to so no
programming actions are required to use brushed motors. Simply be
sure to properly connect the motor to the speed control as shown.
Optional brushed motor wiring diagram:
• Motor positive (+) should be connected to phase A (blue).
• Phase B is not used.
• Motor negative (-) should be connected to phase C (white).
If the wiring is reversed, the motor will operate in reverse. If the
motor is wired incorrectly (using phases A+B or B+C), the VXL-3s will
send short pulses to the motor and turn off the LED, indicating a failsafe mode. It will not return to normal operation until wired properly.
TEMPERATURES AND COOLING
Monitoring temperatures will extend the lives of the batteries and
motors.
There are manyoptions available that will help you monitor
temperatures and cool your components.
Temperature gauge
An on-board temperature gauge, such as the
Traxxas part #4091, can aid you in monitoring
your motor temperature. Generally, try to
keep your motor below 200° F. If necessary,
increase airflow to the motor by cutting out
the rear of the bodyor windshield.
Heat sink cooling fan
The VXL-3s is equipped with an additional
connector to supplypower to an optional heat
sink cooling fan (Part #3340). The optional
heat sink cooling fan can assist in cooling the
VXL-3s in high current motor applications.
TUNING THE SEALED GEAR DIFFERENTIALS
The action of the Slash 4X4 Ultimate’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 a 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.
Slash 4X4 Ultimate 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
high-traction surfaces.
From the factory, the front differential is filled with SAE 30,000W
(30K) viscosity silicone oil. The rear differential is filled with grease,
but can also be tuned with silicone differential oil. Only use silicone
oil in the differentials. Traxxas offers silicone differential fluid in a
variety of viscosities:
Part #5135: 10K Part #5136: 30K Part #5137: 50K
Part #5130: 100K Part #5039: 500K
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 (diff) case.
2. Turn the chassis over and remove the three 4x10mm countersunk
screws that hold bumper/skid plate to the bulkhead. The two rear
screws do not need to be removed.
3. Slide bumper assembly off of the chassis.
4. Remove 3x15mm button-head screw from diff tie bar.
5. Slide tie bar off truck.
Page 29
ADVANCED TUNING ADJUSTMENTS
Front Differential Removal
1. 3x15 BCS
6.3x15 BCS
3.
5.
4.3x15 BCS
2. 4x10 BCS
6. Remove two 3x15mm button-head screws from the differentialcover. 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 3x6mm flat-head sway bar screws.
2. Remove the two 3x20mm button-head screws that secure thetop bumper mount to the differential case.
3. Turn the chassis over and remove the two 3x12mm countersunkcrews that hold the bumper/skid plate to the bulkhead. The twofront screws do not need to be removed.
4. Remove the 3x20mm button-head screw from the bumpermount and tie bar.
Rear Differential Removal
2. 3x20 BCS
7.3x15 BCS
1. 3x6 FCS
5.
4. 3x20 BCS
6.
3. 3x12 BCS
Front of Truck
5. Slide the bumper assembly off of the chassis.
6. Remove the tie bar from the chassis.
Remove the two 3x15mm button-head screws from the differential
7. cover. Do not remove the two screws that secure the shock tower.
8. Remove the differential cover and slide the differential out of the
front of the case.
9. To reinstall the differential, reverse the steps.
Refilling the differentials:
1. Remove the four 2.5x8mm 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. Drain the 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 diff case with fluid until it 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 2.5x8mm screws and tighten securely.
Center differential
The optional included center differential allows the power from
the motor to be transferred to the front and rear differentials
independently from one another. When the rear wheels are under
more load than the front wheels, more power will be transmitted to
the front wheels. This is very beneficial on rough terrain and makes
hard acceleration from low speeds easier to control by keeping
the nose down. The center differential is assembled with 100K
differential lube from the factory. This viscosity will be a good base
point for most conditions.
1.Locate and remove the two 4x12mm button head machine
screws from the top rear of the chassis and the two 4x14mm
button head machine screws from the bottom of the rear
suspension bulkhead (See page 25 for reference).
2.Remove the modular rear end from the chassis by sliding it
backward away from the chassis. This is to access the spur gear/
slipper unit. Remove the spur gear/slipper unit from the rear of
the chassis.
SLASH 4X4 ULTIMATE • 29
Page 30
ADVANCED TUNING ADJUSTMENTS
Optional shock springs
available from Traxxas.
Refer to your parts list for
a complete part number
listing. Higher rate springs
are stiffer. Springs can be
identified by dots of color on
one end.
Shock Piston Sizes
1.5
1.5
1.5
1.5mm Front
1.6
1.6
1.6
1.6mm Rear
30 • SLASH 4X4 ULTIMATE
3. Insert the included center differential unit into the rear of the
chassis (where the spur gear/slipper unit was removed). Stand
the chassis up on the front bumper to hold the spur gear steady
and line it up with the pinion gear. The splined shaft adapter
must key into the aluminum center drive shaft.
4. Attach the rear end unit to the chassis keying in the rear output
shaft of the center differential with the opening in the rear
differential. Secure the assembly with the same four buttonhead screws.
Tip: Rotate the rear wheels slowly while attaching the rear end
to the chassis to properly set the rear output shaft of the center
differential into the rear differential. You should feel the rear end
set into place. The rear skid plate should lock into the bottom of
the chassis.
TUNING AND MAINTAINING THE SHOCKS
Slash 4X4 Ultimate features high-performance GTR shocks that
utilize friction-reducing titanium nitride shafts and hard-anodized
bodies with PTFE-coated bores to provide the ultimate in precise
damping control. The shocks are filled with 30W silicone fluid. You
may wish to install lower-viscosity (“thinner”) or higher-viscosity
(“thicker”) fluid to alter damping performance to suit your track,
terrain, or driving style. Damping can also be altered by changing
the pistons inside the shocks. The front piston is a 2-hole with
1.5mm diameter holes. The rear piston is a 2-hole with 1.6
diameter holes.
Shock Oil
The 4 oil-filled aluminum 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. From the factory, the shocks are filled
with SAE-30W silicone oil. Only use 100% silicone oil in the shock.
Replacing Shock Oil
For easier service, the shocks should be removed from the vehicle
and disassembled to change the oil.
1. Remove the lower spring retainer and shock spring.
2. Remove the upper shock cap using the shock wrench and suspension
multi-tool (A).
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
Multi-tool Shock Functions
body with the suspension multi-tool. The
excess oil will bleed out of the small hole
in the shock cap.
7. Tighten the shock cap until snug. Use the
included steel shock wrench to hold onto
the shock body while tightening (A).
Shock disassembly
A. Tighten/Loosen Upper Cap
The shocks must be removed from the
vehicle and disassembled to change the
pistons. Use the shock exploded views
included with the model to aid in the
assembly process.
1. Remove the spring and lower spring
retainer from the shock.
2. Remove the shock cap and empty the
B. Tighten/Loosen Lower Cap
shock body of shock oil (A).
3. Remove the lower cap and the X-ring
from the shock body (B).
4. Use side cutters to grip the shock shaft
just above the rod end. Remove the
rod end from the shock shaft using the
suspension multi-tool (C).
5. Remove the shock shaft with piston from
C. Remove/Install Rod End
the shock body out through the top of
the shock body.
Page 31
ADVANCED TUNING ADJUSTMENTS
Shock assembly
1. Replace the stock piston with desired
optional piston. Be careful not to lose
the small washer located below the
piston.
2. Position the new piston onto the shock
shaft above the small washer. Grip the
threads of the shaft with side cutters or
needlenose pliers and tighten the nut
with the 4-way wrench to secure the
assembly (D).
3. Insert the shock shaft assembly through
the shock body until the piston
D. Piston Installation/Removal
7468
7463
7468
7463
bottoms out.
4. Lubricate the shaft and X-ring with
silicone oil.
7464
Front (long)
7465
rear (xx-long)
5. Install the X-ring over the shaft and into
the bore of the shock body.
6. Install the lower cap using the
suspension multi-tool (B).
7. Grip the shaft close to the threads with
needlenose pliers or side cutters and
thread the rod end onto the shock
shaft until the rod end bottoms out (C).
8. Fill the shock with new silicone shock
oil up to the top of the shock body.
Slowly move the piston up and down
7466
Front (long)
7467
rear (xx-long)
7468
7463
7463
(Rear Only)
F-7444
7440 opt.
7441 opt.
7445 opt.
7448 opt.
R-7446
7442 opt.
7443 opt.
7447 opt.
7449 opt.
7468
(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.
7468
7463
7463
9. Slowly thread the upper cap with the installed shock bladder onto
the shock body with the suspension multi-tool. The excess oil will
bleed out of the small hole in the shock cap. Tighten the shock cap
until snug. Use the included steel shock wrench to hold onto the
shock body while tightening (A).
10. Reinstall the spring and lower retainer.
SWAY BAR SETTINGS AND ADJUSTMENTS
• Adjust the sway bar links so the sway bars are level (parallel to the
ground) when the truck is on the ground and the suspension is at
rest (normal ride height). This allows equal sway bar travel in both
unloaded and loaded suspension conditions. Always adjust the
left and right sway bar links equally to prevent suspension tweak.
• The adjustable hollow balls can be
moved closer to or farther from
the sway bar mount (pivot point)
toincrease torsion response and
Stiffer
finetune the sway bar’s response
for different track conditions.
Softer
Closerto the pivot point results
in a stiffer setup, farther from the
pivot point will result in softer sway bar response.
For smooth surfaces with high traction:
• Adjust linkage placement for stiffer response
(closer to the sway bar mount).
For rough surfaces with low traction:
• Adjust linkage placement for softer response
(farther from the sway bar mount).
To reduce understeer (pushing in corners):
• Adjust front linkage placement for softer response
(farther from the sway bar mount).
• Adjust rear linkage placement for stiffer response
(closer to the sway bar mount).
To reduce oversteer (loose in corners):
• Adjust front linkage placement for stiffer response
(closer to the sway bar mount).
• Adjust rear linkage placement for softer response
(farther from the sway bar mount).
If you have questions or need technical assistance, call Traxxas at
1-888-TRAXXAS
(1-888-872-9927) (U.S. residents only)
SLASH 4X4 ULTIMATE • 31
Page 32
TQi ADVANCED TUNING GUIDE
The model’s TQi transmitter is equipped with the new TQi Docking Base. This
innovative accessory transforms your iPhone® or iPod touch® into a powerful
tuning tool that equips your TQi with an intuitive, high-definition, full-color
graphical user interface.
Traxxas Link
The powerful Traxxas Link app (available in the Apple App Store) gives you
complete control over the operation and tuning of your Traxxas model with
stunning visuals and absolute precision. With the installed Traxxas Link
telemetry sensors on the model, Traxxas Link displays real-time data, such as
speed, rpm, temperature, and battery voltage.
Intuitive iPhone and iPod touch interface
Traxxas Link makes it easy to
learn, understand, and access
powerful tuning options. Control
Drive Effects settings such as
steering and throttle sensitivity;
steering percentage; braking
strength; and throttle trim by
simply touching and dragging the
sliders on the screen.
Real-Time Telemetry
With the installed telemetry
Tap and slide to adjust Steering Sensitivity,
Throttle Trim, Braking Percent, and more!
sensors, the Traxxas Link
dashboard comes to life, showing
you speed, battery voltage, rpm,
and temperature. Set threshold
warnings and log maximums,
minimums, or averages. Use the
recording function to document
your dashboard view with sound,
so that you can keep your eyes
on your driving and not miss a
single apex.
The customizable Traxxas Link dashboard delivers
real-time rpm, speed, temperature, and voltage data.
Manage up to 30 Models with Traxxas Link
The TQi radio system automatically keeps track of what vehicles it has bound
to and what settings were used for each--up to 30 models total! Traxxas Link
provides a visual interface to name the models, customize their settings,
attach profiles, and lock them into memory. Simply choose a model and any
previously bound transmitter, power them up, and start having fun.
Installing Your Mobile Device
™
The TQi
DockingBase has a unique clamping mechanism that allows the
Apple® iPhone® and iPod touch®to be easily installed and removed. The
clamp’s self-adjusting design allows it to accommodate the wide variety of
protective cases available for Apple products. Follow these steps to install
your mobile device:
1. Swing the Docking Base Clamp lever from
position A (locked) to position B (unlocked).
2. Install your mobile device by sliding it onto
the connector.
1
AB
3.Ensure your mobile device is parallel with
the Docking Base. Slide the included foampads beneath the mobile device so itis held parallel with the docking base
2
when supported by the pads. The padshave thicknesses of 1, 2, 3 and 4mm,choose the best combination for yourdevice and case, if used. See the chartto find the correct pad combinationfor iPhone and iPod touch modelswithout accessory cases.
3
4.Make certain your mobile device slides
directly onto the connector when slidover the foam pads. When you are
satisfied with the fit, peel the backing
from the foam pads and apply them to
theDocking Base.
5. Closethe Docking Base Clamp by moving it to position A. Confirm your
mobile device is snug and securely held in place.
Optional: TheDocking Base Clamp’s ‘fingers’ have soft gripper pads on them
to hold un-cased devices. If your device is in a soft rubber case, the gripper
pads may be removedfor easier device installation and removal.
The following items can be adjusted most easily using your mobile
device and the Traxxas Link application. All the features described
below may also be accessed using the MENU and SET buttons on
the transmitter and observing signals from the LED. An explanation
of the menu structure follows on page 35.
Your Traxxas transmitter has a programmable Multi-Function knob
that can be set to control various advanced transmitter functions
(set to Steering Sensitivity by default, see page 16). Experiment with
the settings and features to see if they can improve your driving
experience.
Steering Percentage (Dual Rate)
The Multi-Function knob can be set to control the amount
(percentage) of servo travel applied to steering. Turning the MultiFunction knob fully clockwise will deliver maximum steering throw;
turning the knob counterclockwise reduces steering throw (note:
turning the dial counterclockwise to its stop will eliminate all servo
travel). Be aware that the steering End Point settings define the
servo’s maximum steering throw. If you set Steering Percentage to
TRANSMITTER LED CODES
LED Color / PatternNameNotes
Solid greenNormal Driving ModeSee page 14 for information on how to use your transmitter controls.
Slow red (0.5 sec on / 0.5 sec off)BindingSee page 15 for more information on binding.
Flashing fast green (0.1 sec on / 0.15 sec off)Throttle Trim Seek Mode
Flashing medium red (0.25 sec on / 0.25 sec off)Low Battery AlarmPut new batteries in the transmitter. See page 12 for more information.
Flashing fast red (0.125 sec on / 0.125 sec off)Link Failure / Error
Programming Patterns
or
Counts out number (green or red) then pausesCurrent menu positionSee Menu Tree for more information.
x
Fast green 8 timesMenu setting accepted (on SET)
8
Fast red 8 timesMenu SET invalidUser error such as trying to delete a locked model.
x
8
RECEIVER LED CODES
LED Color / PatternNameNotes
Solid greenNormal Driving ModeSee page 14 for information on how to use your transmitter controls.
Slow red (0.5 sec on / 0.5 sec off)BindingSee page 15 for more information on binding.
Flashing fast red (0.125 sec on / 0.125 sec off)Fail-Safe / Low-Voltage Detect
100% (by turning the Multi-Function knob fully clockwise), the servo
will travel all the way to its selected end point, but not past it. Many
racers set Dual Rate so they have only as much steering throw as
they need for the track’s tightest turn, thus making the car easier to
drive throughout the rest of the course. Reducing steering throw
can also be useful in making a car easier to control on high-traction
surfaces, and limiting steering output for oval racing where large
amounts of steering travel are not required.
Throttle Sensitivity (Throttle Exponential)
The Multi-Function knob can be set to control Throttle Sensitivity.
Throttle Sensitivity works the same way as Steering Sensitivity, as
described on page 16, but applies the effect to the throttle channel.
Only forward throttle is affected; brake/reverse travel remains linear
regardless of the Throttle Sensitivity setting.
Steering and Throttle End Points
The TQi transmitter allows you to choose the limit of the servo’s
travel range (or its “end point”) independently for left and right
travel (on the steering channel) and throttle/brake travel (on the
throttle channel). This allows you to fine-tune the servo settings to
Turn the Multi-Function knob right or left until the LED stops flashing.
See sidebar for more information.
Transmitter and receiver are no longer bound. Turn the system off and then
back on to resume normal operation. Find source of the link failure (i.e., out of
range, low batteries, damaged antenna).
Consistent low voltage in the receiver triggers Fail-Safe so there is enough
power to center the throttle servo before it completely loses power.
Throttle Trim Seek Mode
When the Multi-Function knob is
set to throttle trim, the transmitter
remembers the throttle trim setting. If
the throttle trim knob (Multi-Function
knob) is moved from the original
setting while the transmitter is off,
or while the transmitter was used to
control another model, the transmitter
ignores the actual position of the trim
knob. This prevents the model from
accidentally running away. The LED on
the face of the transmitter will rapidly
blink green and the throttle trim knob
(Multi-Function knob) will not adjust the
trim until it is moved back to its original
position saved in memory. To restore
throttle trim control, simply turn the
Multi-Function knob either direction
until the LED stops blinking.
Fail-safe
Your Traxxas radio system is equipped
with a built-in fail-safe function that
returns the throttle to its last saved
neutral position in the event of a signal
loss. The LED on the transmitter and the
receiver will rapidly flash red.
Starting Over:
Restoring Factory Defaults
When programming your TQi transmitter,
you may feel the need to start over with a
clean slate. Follow these simple steps to
restore the factory settings:
1. Turn the transmitter off.
2. Hold both MENU and SET.
3. Turn the transmitter on.
4. Release MENU and SET. The
transmitter LED will blink red.
5. Press SET to clear settings. The
LED will turn solid green and the
transmitter is restored to default.
SLASH 4X4 ULTIMATE • 33
Page 34
TQi ADVANCED TUNING GUIDE
prevent binding caused by the servo moving steering
or throttle linkages (in the case of a nitro car) farther
than their mechanical limits. The end point adjustment
settings you select will represent what you wish to be
the servo’s maximum travel; the Steering Percentage or
Braking Percentage functions will not override the End
Point settings.
Steering and Throttle Sub-Trim
The Sub-Trim function is used to precisely set the
neutral point of the steering or throttle servo in the
event that simply setting the trim knob to “zero” does
not completely center the servo. When selected, SubTrim allows finer adjustment to the servo output shaft’s
position for precise setting of the neutral point. Always
set the Steering Trim knob to zero before making final
adjustment (if required) using Sub-Trim. If Throttle Trim
has been previously adjusted, the Throttle Trim will
need to be reprogrammed to “zero” before making final
adjustment using Sub-Trim.
Braking Percentage
The Multi-Function knob may also be set to control the
amount of brake travel applied by the servo in a nitropowered model. Electric models do not have a servooperated brake, but the Braking Percentage function still
operates the same way in electric models. Turning the
Multi-Function knob full clockwise will deliver maximum
brake throw; turning the knob counterclockwise reduces
brake throw (Note: Turning the dial counterclockwise to
its stop will eliminate all brake action).
Throttle Trim
Setting the Multi-Function knob to serve as throttle trim
will allow you to adjust the throttle’s neutral position
to prevent unwanted brake drag or throttle application
when the transmitter trigger is at neutral.
Note: Your transmitter is equipped with a Throttle Trim
Seek mode to prevent accidental runaways. See the
sidebar on page 33 for more information.
Setting Lock
Once you’ve adjusted all of these settings the way you like
them, you may want to disable the Multi-Function knob
so none of your settings can be changed. This is especially
handy if you operate multiple vehicles with a single
transmitter via Traxxas Link
™
Model Memory.
Multiple Settings and the Multi-Function Knob
It is important to note that settings made with the MultiFunction knob are “overlaid” on top of each other. For
example, if you assign the Multi-Function knob to adjust
Steering Percentage and set it for 50%, then reassign
the knob to control Steering Sensitivity, the transmitter
will “remember” the Steering Percentage setting.
Adjustments you make to Steering Sensitivity will be
applied to the 50% steering throw setting you selected
previously. Likewise, setting the Multi-Function knob to
“disabled” will prevent the knob from making further
adjustments, but the last setting of the Multi-Function
knob will still apply.
TRAXXAS LINK MODEL MEMORY
Traxxas Link Model Memory is an exclusive, patentpending feature of the TQi transmitter. Each time the
transmitter is bound to a new receiver, it saves that
receiver in its memory along with all the settings
assigned to that receiver. When the transmitter and
any bound receiver are switched on, the transmitter
automatically recalls the settings for that receiver. There
is no need to manually select your vehicle from a list of
model memory entries.
Model Lock
The Traxxas Link Model Memory feature can store up
to thirty models (receivers) in its memory. If you bind
a thirty-first receiver, Traxxas Link Model Memory will
delete the “oldest” receiver from its memory (in other
words, the model you used the longest time ago will be
deleted). Activating Model Lock will lock the receiver in
memory so it cannot be deleted.
You may also bind multiple TQi transmitters to the same
model, making it possible to pick up any transmitter and
any previously bound model in your collection and simply
turn them on and drive. With Traxxas Link Model Memory,
there is no need remember which transmitter goes with
which model and there is never a need to have to select
any model from a list of model memory entries. The
transmitter and receiver do it all for you automatically.
To activate Model Lock:
1. Switch on the transmitter and receiver you wish to lock.
2. Press and hold MENU. Release when the status LED
blinks green.
3. Press MENU three times. The status LED will blink green
four times repeatedly.
4. Press SET. The status LED will blink green in singleflash intervals.
5. Press SET once. The status LED will blink red
once repeatedly.
6. Press MENU once. The LED will blink red
twice repeatedly.
7. Press SET. The LED will blink rapidly green.
The memory is now locked. Press MENU and SET to
return to driving mode.
Note: To unlock a memory, press SET twice at step 5.
The LED will blink rapidly green to indicate the model
is unlocked. To unlock all models, press MENU twice at
step 6 and then press SET.
To delete a model:
At some point, you may wish to delete a model you nolonger drive from the memory.
1. Switch on the transmitter and receiver you wish
to delete.
2. Press and hold MENU. Release when the status LED
blinks green.
3. Press MENU three times. The status LED will blink green
four times repeatedly.
4. Press SET once. The status LED will blink green
once repeatedly.
5. Press MENU once. The status LED will blink green
twice repeatedly.
6. Press SET. The memory is now selected to be deleted.
Press SET to delete the model. Press and hold MENU to
return to driving mode.
34 • SLASH 4x4 ULTIMATE
Page 35
TQi ADVANCED TUNING GUIDE
MENU TREE
The menu tree below shows how to navigate through
the TQi transmitter’s various settings and functions.
Press and hold MENU to enter the menu tree, and use
the following commands to navigate through the menu
and select options.
MENU: When you enter a menu, you always start at the
top. Press MENU to move down the menu tree.
When you reach the bottom of the tree, pressing
MENU again will return you to the top.
SET: Press SET to move across the menu tree and select
options. When an option is committed to the
transmitter’s memory, the status LED will rapidly
blink green.
BACK: Press both MENU and SET to go back one level in
the menu tree.
EXIT: Press and hold MENU to exit programming.
Your selected options will be saved.
ECHO: Press and hold SET to activate the “echo” function.
Echo will “play back” your current position on the
Menu Tree, should you lose your place. For example:
If your current position is Steering Channel End
Points, holding SET will cause the LED to blink green
twice, green once, and then red three times. Echo
will not alter your adjustments or change your
position in the programming sequence.
Below is an example of how to access a function in the menu
tree. In the example, the user is setting the Multi-Function knob
to be a steering Dual Rate control.
To set the Multi-Function knob to control STEERING DUAL RATE (%):
1. Switch the transmitter on
2. Press and hold MENU until the green LED lights. It will blink in single
intervals.
3. Press SET. The red LED will blink in single intervals to indicate Steering
Dual Rate has been selected.
4. Press MENU twice. The red LED will blink three times repeatedly to
indicate Steering Percentage has been selected.
5. Press SET to select. The green LED will blink 8 times fast to indicate
successful selection.
6. Press and hold MENU to return to driving mode.
Restoring Factory Defaults:
Transmitter
OFF
Hold both
MENU and SET
Transmitter ONRelease MENU and SET
red LED blinks
Press SET to clear settings. LED will turn
solid green. Transmitter is restored to default
Enter Programming
Press and hold
MENU for 3 seconds
Multi-Function Knob
1
One Blink Green
Press
MENU
Channel Setup
2
Two Blinks Green
Press
MENU
Mode Selection
3
Three Blinks Green
Press
MENU
Traxxas-Link
4
Four Blinks Green
Press
SET
Press
SET
Press
SET
Press
SET
Press MENU to move through options.
Press SET to select an option.
Steering Sensitivity (Expo)
1
One Blink Red
Throttle Sensitivity (Expo)
2
Two Blinks Red
Steering % (Dual Rate)
3
Three Blinks Red
Braking %
4
Four Blinks Red
Throttle Trim
5
Five Blinks Red
Knob Disabled
6
Six Blinks Red
Steering (Channel 1)
1
One Blink Green
Press
MENU
Throttle (Channel 2)
2
Two Blinks Green
Press SET to select an option.
Electric
1
One Blink Red
Press
MENU
Nitro
2
Two Blinks Red
Model Locking
1
One Blink Green
Press
MENU
Delete Model
2
Two Blinks Green
Press
SET
Press
SET
Press
SET
Press
SET
Note: The transmitter is “live” during programming
so you can test the settings real time without having
to exit the menu tree.
Press MENU to move through options.
Press SET to select an option.
Servo Reversing
1
One Blink Red
Sub-Trim
2
Two Blinks Red
End Points
3
Three Blinks Red
Turn left to desired end point and press set to save.
To reset max throw: Let go of controls and press SET.
Reset End Points
4
Four Blinks Red
Servo Reversing
1
One Blink Red
Sub-Trim
2
Two Blinks Red
End Points
3
Three Blinks Red
forward to desired end point and press set to save.
To reset max throw: Let go of controls and press SET.
Reset End Points
4
Four Blinks Red
Unlock
1
One Blink Red
Lock
2
Two Blinks Red
Unlock All
3
Three Blinks Red
Confirm Deletion
1
One Blink Red
Press SET to reverse
servo direction.
Use knob to adjust
sub-trim. Press SET to save.
Use steering wheel to
adjust. Turn right to desired
end point, press set to save.
Press SET to restore factory
default end points.
Press SET to reverse
servo direction.
Use knob to adjust subtrim. Press SET to save.
Use trigger to adjust. Pull
back to desired end point,
press set to save. Push
Press SET to restore factory
default end points.
Page 36
TQi ADVANCED TUNING GUIDE
Set Multi-Function
knob for STEERING
SENSITIVITY (Expo)
Set Multi-Function
knob for THROTTLE
SENSITIVITY (Expo)
Set Multi-Function
knob for STEERING
DUAL RATE (%)
Set Multi-Function
knob for BRAKING
PERCENTAGE (%)
Set Multi-Function
knob for
THROTTLE TRIM
To LOCK the
Multi-Function knob
To REVERSE
the direction of
STEERING servo
To set the SUB TRIM
of the STEERING
servo
To set the END
POINTS of the
STEERING servo
To reset the END
POINTS of STEERING
servo to defaults
To REVERSE
the direction of
THROTTLE servo
To set the SUB TRIM
of the THROTTLE
servo
To set the END
POINTS of the
THROTTLE servo
To reset the END
POINTS of THROTTLE
servo to defaults
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press/hold MENU
green LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
x
Press MENU
green LED blinks (x2)
Press SET to confirm
green LED blinks (x8)
Press MENU to confirm
red LED blinks (x2)
Press MENU twice
red LED blinks (x3)
Press MENU 3 times
red LED blinks (x4)
Press MENU 4 times
red LED blinks (x5)
Press MENU 5 times
red LED blinks (x6)
2
2
2
2
2
2
2
2
Press SET
green LED blinks
Press SET
green LED blinks
Press SET
green LED blinks
Press SET
green LED blinks
Press SET
green LED blinks
Press SET
green LED blinks
Press SET
green LED blinks
Press SET
green LED blinks
x
8
returns to driving mode
x
2
x
3
x
4
x
5
x
6
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press MENU
Press MENU
Press MENU
Press MENU
x
x
x
x
x
x
x
x
x
Press/hold MENU
Press SET to select
green LED blinks (x8)
Press SET to select
green LED blinks (x8)
Press SET to select
green LED blinks (x8)
Press SET to select
green LED blinks (x8)
Press SET to lock
green LED blinks (x8)
green LED blinks (x2)
green LED blinks (x2)
green LED blinks (x2)
green LED blinks (x2)
8
Press/hold MENU
returns to driving mode
8
Press/hold MENU
returns to driving mode
8
Press/hold MENU
returns to driving mode
8
Press/hold MENU
returns to driving mode
8
Press/hold MENU
returns to driving mode
Press SET to reverse
red LED blinks (x2)
Press MENU twice
red LED blinks (x3)
Press MENU 3 times
red LED blinks (x4)
2
2
2
2
servo direction
Press MENU
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
Press SET
red LED blinks
x
8
x
2
x
3
x
4
Adjust the Multi-
Function knob until the
LED turns solid green.
Press/hold MENU
returns to driving mode
Use Multi-Function
knob to set neutral
Turn steering
wheel to desired max
left and right travel
x
Press SET
to reset end points
x
Press SET to reverse
servo direction
x
Press MENU
red LED blinks (x2)
x
Press MENU twice
red LED blinks (x3)
x
Press MENU 3 times
red LED blinks (x4)
tosave each position
8
returns to driving mode
8
returns to driving mode
2
3
trigger to set desired
max throttle or brake
4
green LED blinks (x8)
MENU TREE FORMULAS
To select functions and make adjustments to the TQi transmitter without
referencing the menu tree, turn your transmitter on, find the function in the
left column you wish to adjust, and simply follow the corresponding steps