Helion Conquest 10ST XB HLNA0762 Manual

Owner’s Manual &
Technical Information
HLNA0762 Conquest 10ST XB (US)
HLNA0772 Conquest 10ST XB (UK-EU)
HLNA0782 Conquest 10ST XB (AU)

2
Legal
Entire contents ©2016 Helion RC
Before using your product, review all documentation and inspect the product
carefully. If for some reason you decide it is not what you wanted, then do
not continue with unpacking, setup or operation of your product. Your local
hobby dealer cannot accept a product for return or exchange after partaking
in actions that produce wear and tear.
Read, understand and follow all instructions and accompanying material
carefully before operating or assembling your product to prevent serious
damage. Failure to complete these tasks properly or intentional aversion to
the content will be considered abuse and/or neglect.
Product specications are subject to change without notice. Due to ongoing
development, the actual product may vary from images shown.
This product contains chemicals known to the State of California to cause
cancer, birth defects and other reproductive harm.
This product is not a toy! (14+) Recommended for ages 14 and up. Adult
supervision required for ages under 18 years old. Contains small parts, keep
out of reach of children 3 years of age and younger.
Important Information
Throughout this manual you will see different notes, cautions and warnings
to help alert you to important information about the section you are reading.
Please see below for the descriptions and what to look for to identify each
type.
WARNING: THIS INFORMATION IS IMPERATIVE FOR YOU TO UNDERSTAND AND
FOLLOW AS LACK OF COMPLIANCE WITH THE CONTENTS OF THE WARNING
COULD CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
CAUTION: THIS INFORMATION IS IMPORTANT FOR YOU TO UNDERSTAND AND
FOLLOW AS LACK OF COMPLIANCE WITH THE CONTENTS OF THE CAUTION COULD
CAUSE DAMAGE TO YOUR PRODUCT THAT IS NOT COVERED UNDER WARRANTY.
Note/Tip: This information is important for you to keep in mind, most commonly
used to recall previously given information or to direct you to or provide you with
additional information on a subject.

3
Contents
Notice.......................................................................................... 4
Precautions................................................................................. 4
Package Contents ...................................................................... 5
Items Needed to Complete........................................................ 5
Introduction ................................................................................ 6
Features...................................................................................... 6
Getting Started........................................................................... 7
IKONNIK ET3 Radio Sysytem ..................................................12
Helion 40A ESC ........................................................................12
Helion Brushed System Troubleshooting................................16
Adjusting and Tuning Your Vehicle .......................................... 17
General Care & Maintenance..................................................18
Storage and Disposal ..............................................................21
Troubleshooting Problems .......................................................22
Troubleshooting Tables ............................................................23
Exploded Views.........................................................................25
Spare Parts List........................................................................34
Warranties ................................................................................ 37
Declaration of Conformity........................................................40

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Notice
Your product is calibrated and tested at the factory prior to nal packaging,
some issues may arise during shipping and handling that can be easily
resolved at home. For other adjustments it should be known that hobby
grade radio controlled products such as this differ from toy grade, in that they
are intended to be user-serviceable products where the user can program,
disassemble and maintain their own product. We try our best to ensure the
information you need to introduce you to this form of product ownership is
available to you though this manual. Please see the troubleshooting guide at
the back of this manual for assistance in resolving issues, either as they are
experienced out of the box or as found after regular use.
Note: Assuming your product functions properly as intended out of the box, the
best thing you can do is pay close attention to how it feels, sounds and functions.
This will help you identify problems later since you will have a reference of how the
product is supposed to perform.
If you require further information or assistance resolving a possible issue,
please consult the warranty card included with your product.
Precautions
Although great for rst time users, Helion RC products are indeed advanced
radio controlled vehicles with sensitive electronics and moving parts capable
of causing injury if used improperly. Always use caution and common sense
as failure to operate your product in a safe and responsible manner can
result in damage to the product or other properties. Therefore this product
is not intended for use or maintenance by children without direct adult
supervision. Helion RC and your hobby dealer shall not be liable for any loss
or damages, whether direct, indirect, special, incidental, or consequential,
arising from the use, misuse, or abuse of this product or any product required
to operate or maintain it.
WARNING: ALWAYS KEEP LOOSE CLOTHING, HAIR, TOOLS OR OTHER MOVABLE
OBJECTS AWAY FROM MOVING PARTS OF YOUR VEHICLE DURING SETUP AND
CONFIGURATION. SPINNING TIRES CAN EXPAND AND MAKE CONTACT WITH SMALL
TOOLS, OR HARDWARE AND SEND THEM FLYING AT HIGH SPEEDS RISKING
INJURY TO YOU OR OTHERS AROUND YOU.
• Your model can cause serious damage or injury so please use caution
and courtesy when operating your model.
• As a safety precaution, perform all transmitter and receiver adjustments
with all parts of the vehicle off the ground. This ensures the complete
control over the vehicle at all times during adjustments.
• Do not operate your model near trafc, bystanders, parking areas, or any
other area that could result in injury to people or damage to property.
• If at any time during the operation of your model you observe any erratic
or abnormal behavior of your model, immediately stop operation and
bring the mode to a safe stop in a safe location to diagnose the problem.
• Always power on your transmitter before turning your vehicle on.

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• If you have little or no experience operating R/C models, we strongly
recommend you seek the assistance of your local hobby dealer.
• Do not expose the transmitter to water or excessive moisture.
• Do not operate radio controlled products in a lightning or thunder storm.
• Ensure your batteries (both Tx and vehicle) are charged before each use.
• Check all servos and electrical connections prior to each use.
• Use caution when handling your vehicle after use as electronics may get
HOT and could cause a burn if handled carelessly.
• Always allow the motor in your vehicle to cool completely before using it
again.
R/C models are an extremely fun hobby, but safety should never be ignored
or taken lightly. Always take caution when operating your model as damage
to property and injury can result from careless operation. Please consult
your local hobby dealer with any questions or troubleshooting issues. And
of course don’t forget to have fun, you deserve it after reading through all of
these safety tips!
Package Contents
• 1 x Conquest 10ST XB
• 1 x IKONNIK ET3 Krypton 2.4GHz 3-channel transmitter
• 1 x Rechargeable Helion 6-cell 7.2V 2000mAh NiMH battery
• 1 x Mains charger
Items Needed to Complete and Enjoy
• 4 x AA alkaline batteries for the transmitter

6
Introduction
Complexity and sophistication is common in the RC world, but sometimes all
you really want is a vehicle that offers core Monster Truck qualities. A sturdy
RC off-roader that provides the speed and excitement you desire, the durability
to take the rough with the smooth and the handling to keep you in control
over all manner of uncompromising terrain. If you’re new to RC bashing, you
might also want something that’s easy to maintain and upgrade as your skills
increase. The Conquest 10ST XB is just such a truck. It is, in short, a 2WD,
all-weather, all-terrain, all-rounder that’s as happy backyard bashing as it is
leaping off ramps, scorching through gravel, or performing rubber-burning
wheelies. Not until you take a closer look will you appreciate the ner points of
the rigid, workmanlike, composite chassis, the robust independent suspension
and oil-lled, coil-over shocks, the fully enclosed spur gear housing that hides
an adjustable slipper clutch, the authentic high-grip, long-wear, V-tread tires
and the durable high-torque servo. But there’s more! Easy to access electronic
components make maintenance simple and keep upgrade options varied,
while a Helion 2000mAh 7.2V rechargeable NiMH battery offers sensible
run times. It’s what you might call a ‘total’ solution, not least because it’s
supported by a high performance 550 brushed motor, Helion 40 amp ESC and
IKONNIK’s ET-3 radio, with rock-solid Krypton 2.4GHz protocol. That’s quite a
package and at a price you can’t afford to ignore.
Features
• 100% factory assembled and ready to run.
• All-weather electronics.
• High performance 550 class brushed motor and Helion
40 amp ESC.
• 2S LiPo compatible.
• Fully enclosed and protected spur gear and slipper clutch.
• Impressive top speed of 20+ mph right out of the box.
• Reaches speeds of 25+ mph with an optional 2S LiPo.
• Four wheel independent suspension.
• Adjustable, oil lled, coil-over shock absorbers.
• Impact resistant composite construction is strong,
durable, and lightweight.
• Metal dog bone style drive shafts.
• Toolless battery strap for easy battery installation and
removal.
• Non integrated electronic components.

7
Getting Started
Below are some steps to help get you going right away and most applicable
to those who have used RC products before. If you are new to the hobby or it
has been a while since you’ve worked with the latest technology, please read
through the manual to acquaint yourself with the latest procedures, Warnings,
Cautions and Tips.
Charging
Although this information should be included with your batteries and charger,
we have included it here again to ensure you have seen it and are aware of the
most common things to be aware of with regard to charging our batteries.
• Never leave the battery unattended while charging and never operate the
charger without adult supervision.
• Never charge a warm battery, always allow the battery to cool to room
temperature before charging.
• Always use a re-proof charge bag when charging/discharging LiPo
batteries
• Never drop the charger or battery and do not attempt to charge a damaged
battery.
• Inspect the battery and charger before use. Never use a battery or
charger if the wire or connector has been damaged or if the battery has
experienced a short.
• Incorrect use of the battery, connections, or charging equipment can cause
personal injury or property damage.
• Never allow batteries or charger to come in contact with moisture at any
time.
• Stop charging immediately if the battery or charger becomes hot or
changes form during use.
WARNING: WHEN USING LIPO BATTERIES, ONLY USE CHARGERS DESIGNED
FOR USE WITH LIPO BATTERIES FOR THE RC INDUSTRY THAT ENABLE BALANCE
CHARGING AND USE THE SUPPLIED CONNECTOR. USE OF OTHER (NON-RC
SPECIFIC) CHARGERS OR CONNECTORS CAN CAUSE CATASTROPHIC FALURES AND
CAN PERMANENTLY DAMAGE YOUR BATTERY AND/OR CONNECTED EQUIPMENT.
THIS PRODUCT IS NOT A TOY AND SHOULD NOT BE CHARGED, OPERATED, OR
MAINTAINED WITHOUT SUPERVISION OF AN ADULT.
Fully balance charge your chosen 2S LiPo battery in accordance with charging
and safety guidelines supplied with the battery. LiPo batteries are sensitive to
the charge current and, as such, it should be chosen with care.
• The battery pack must have a compatible HCT plug, or use an adapter that
includes high current connectors.
• You can use a suitable LiPo battery pack, however you must change the
LVC (Low Voltage Cut-off) on the ESC (see page 17 of this manual for ESC
settings)

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Quick Start Guide
1. Remove the components from the box and ensure the contents are correct:
▪ 1 x Conquest 2WD Stadium Truck
▪1 x 2000mAh 6-cell NiMH battery pack
▪1 x IKONNIK ET3 2.4GHz 3-channel transmitter
▪1 x 6-cell wall charger
▪ 1 x Quick-Start Guide
2. Remove the four body clips from the car and lift the body clear.
3. Locate the battery cradle in the center of the car, release the hook and loop
tape and withdraw the battery pack.
4. Plug the charger into a wall socket, connect the battery to the charger and
place the battery on a non-ammable surface. Switch the wall socket ON
noting that a fully discharged battery will be charged in approximately 3
hours. Periodically monitor the temperature of the battery when charging
and disconnect if it exceeds 120°F (49°C). Unplug the battery when
charged.
5. Re-insert the fully charged battery pack into the cradle and tightly secure it
with the hook and loop straps.

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6. Remove the battery cover from the underside of the ET3 transmitter and
insert four AA alkaline cells. Take care to ensure that the correct polarity is
observed.
7. Ensure the radio switch is in the OFF position, then connect the battery to
the ESC.
8. Replace the body and secure it with the four body clips.
9. Switch ON your IKONNIK ET3 transmitter and ensure the LED is lit solid red
and that no alarms are audible. Ensure that the CH2 EPA dials are turned
fully clockwise and that the D/R (steering rate) dial is centered. Ensure,
also, that the CH1 and CH2 (trim) dials are centered at zero.
LED
CH2 EPA D/R
CH1 &
CH 2
Trim

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10. Slide your nger under te dust cover, locate the switch and turn ON your
Conquest. In the unlikely event that the car does not operate, see the
PAIRING / BINDING instructions on page 11.
11. Check the operation of the throttle and steering. Pulling the throttle trigger
back will drive the car forward, pushing the trigger forward once will apply
the brakes while pushing the trigger forward twice will drive the car in
reverse. Turning the wheel to the right will cause the car to turn right and
vice versa.
12. Use the throttle and steering trim dials to ne-tune the controls of your car.
In doing so, ensure that your Conquest tracks in a straight line. Also that it
doesn’t creep forwards or backwards at zero throttle.
Binding/Pairing the Transmitter
Having followed steps 1 to 12, in the unlikely event that your car does not
operate please follow the 5 stage pairing process detailed here.
1. Remove the body and locate the ET3 Krypton receiver.

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2. Place your Conquest and ET3 transmitter in close proximity but not less than
12” (300mm) apart.
300mm
3. Press and hold the PAIR / BIND button on the receiver then switch the receiver
on. The receiver’s LED will ash to indicate that it is in PAIR / BIND mode.
4. Press and hold the PAIR / BIND button on the transmitter then switch the
transmitter on. Release the PAIR / BIND button only when the transmitter’s LED
begins ashing.
5. When the LED on the receiver lights solid red your ET3 transmitter and
Conquest will be bound. You will now have full control of throttle and steering.
Return to Step 13 of this guide to complete the set-up of your car.

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The IKONNIK ET3 Radio System
Offering a class-leading feature set, the advanced IKONNIK ET3 2.4GHz
3-channel sport transmitter offers style, comfort and an interference-
free performance, courtesy of IKONNIK’s rock-solid Krypton (Kr) protocol.
Functions include servo reversing on both primary channels, steering dual
rate, throttle trim, steering trim and, perfect for beginners, throttle end point
adjustment. Add a low voltage warning, an ultra-bright LED status light,
optional charge socket and a switched third channel and the ET3 will quickly
become your favorite grab ‘n’ go radio.
Features
• A simple to operate single model memory transmitter and receiver
• 2.4GHz operation avoids conicts with other users
• Easily pairs with vehicles pre-equipped with IKONNIK Krypton technology
• Proportional steering and throttle control
• Rotary steering and throttle trims
• End point adjust on channel 2
• Handy, switched third channel for ancilliary controls
• Adjustable steering rate - perfect for reducing the steering sensitivity for
younger or new drivers
Specications
Pairs With IKONNIK Krypton Protocol
Channels 3
Memory Single model memory
Tx Batteries 4 x AA
Tx Length 165mm (5.8in)
Tx Height 215mm (11.07in)
Tx Width 90mm (5.05in)
Tx Weight 282g (0.62lb) without batteries
Helion 40A Brushed System Overview
We’ve included some great features in your Helion Brushed ESC to help keep
your system running in top shape while keeping your battery upgrade path
open since it is compatible with LiPo batteries.

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Technical Specication
Continuous current: ..40A (forward) 20A (reverse)
Burst current: ............180A (forward) 90A (reverse)
Resistance:................0.0020 ohm (forward) 0.0040 ohm (reverse)
Motor type:.................Brushed
Motor limit: ................540 - 550 size 12T
Battery: ......................5 – 6 cells NiMH 2S LiPo
BEC:............................6V/2A (linear mode)
Dimensions (mm):.....46.5 x 34 x 28.5
Weight: .......................65g
WARNING: ALWAYS ALLOW YOUR MOTOR TO COOL BETWEEN RUNS. EXCESSIVE
ACCELERATION AND AGGRESSIVE DRIVING WILL CAUSE YOUR SYSTEM TO GET
HOT. EXERCISE GREAT CARE WHEN HANDLING YOUR VEHICLE AFTER RUNNING TO
AVOID GETTING BURNED.
Features of your ESC
• Waterproof and dustproof. The ESC can work underwater for a short time.
• Specially designed for RC cars and trucks, with excellent start-up,
acceleration and linearity features.
• Automatic throttle range calibration - easy to use!
• Low Voltage Cut-off (LVC) protection for LiPo or NiMH battery.
• Overheat protection.
• Throttle signal loss protection.
• Motor blocked protection.
• Easily programmed with jumpers.
Your ESC has been pre-installed at the factory but before using your
vehicle each time it is good to double check the wiring for damage or loose
connections to ensure everything is in working order before. Refer to the
diagram below to check the connections of your electronics system.
Throttle Range Calibration
Unlike other systems that require manual setup, your Helion Brushed ESC
features automatic calibration. However, for this feature to function properly
you need to ensure the throttle channel of the transmitter (CH.2) is set to N
(normal). Please also set the transmitter’s throttle channel D/R, EPA and ATL
to 100% and set the throttle trim to 0. For non computer transmitters, turn
the D/R, EPA and ATL dials to their maximum travel and the trim to its neutral
position.

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1. Connect a fully charged battery.
2. Turn the transmitter ON rst the ESC, noting that the transmitter should always
be ON if the ESC is ON.
3. Keep the throttle stick at its neutral position, wait for 3 seconds to let the ESC
perform its self test and automatic throttle calibration.
4. When the ESC is ready to run, a long beep will sound.
5. This calibration will be performed every time the ESC is powered on. If you are
touching the trigger during this process the ESC will not calibrate or function,
simply release the trigger and wait for the audible chime.
6. Check the ESC operation to ensure you have full throttle and brake before
driving the vehicle.
Note that you’ll need to calibrate the throttle range again when using a new
transmitter or when changing the settings of the neutral position of the throttle
channel, D/R, ATV, ATL or EPA. If this is not carried out the ESC may not work properly.
Understanding the LED Status Light and Alert Tones
Your Helion 40A ESC is programmed to communicate with you to let you know its
status.
LED in normal use
• If the throttle trigger is in the neutral range the LED will be off.
• The red LED blinks when the car is running forward, backward or braking.
• The red LED lights solid when the throttle trigger is moved to the full throttle or
full reverse position.

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Alert tones
1 Short Beep: The battery type is set to NiMH / NiCd.
2 Short Beeps: The battery type is set to 2S LiPo.
3 Short Beeps: The battery type is set to 3S LiPo.
1 Long Beep: Self test and throttle calibration is complete / the ESC is ready
to run.
Programming your ESC
Your Helion 40A brushed ESC is a programmable unit whose direction and
battery type can be adjusted by altering the position of the jumper plugs. The
plugs are best repositioned using tweezers in conjunction with the following
diagram.
Low Voltage Cut-off (LVC) Protection
Please note the following with regard to the pre-programmed LVC settings.
5 - 9 NiMH cells Output reduces to 50% at 4.5V
Output cuts off at 4.0V (no recovery)
2S LiPo Output reduces to 50% at 6.5V
Output cuts off at 6.0V (no recovery)
3S LiPo Output reduces to 50% at 9.75V
Output cuts off at 12V (no recovery)
Overheat Protection
When the internal temperature of the ESC is higher than 100°C or 212°F
for a period of 5 seconds the ESC will rst reduce and then cut off the output
power. When the car stops the red LED blinks to indicate that the overheat
protection has been activated. When the ESC cools to 80°C or 176°F the
output power will recover and normal control will resume.

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Signal Loss Protection
If the throttle signal is lost for 0.1 seconds the ESC will cut the output power
and the car will stop.
Helion Brushed ESC Troubleshooting
TroublePossible Reason Solution
After power on, motor can’t work, no
sound is emitted, and LED is off.
The ESC doesn’t get its working
voltage; Connections between
battery pack and ESC are
broken.
Check the battery wires connection
or replace the defective connectors.
Switch is damaged. Replace the switch.
After power on, motor can’t work; red
LED blinks.
Throttle signal is abnormal. Check the throttle wire connection;
make sure it is plugged into the
throttle channel of the receiver.
Automatic throttle range
calibration has failed.
Set the “TRIM” of throttle channel to
0 or turn the knob to its neutral
position.
The car runs backward while giving
throttle.
(The motor runs in the opposite
direction)
The wire connections between
ESC and the motor need to be
changed.
Swap two wire connections between
the ESC and the motor.
The car can’t go backward. The jumper position is wrong. Check the jumper and plug it to the
correct position.
The neutral point of throttle
channel is changed or drifted.
Set the “TRIM” of throttle channel to
0 or turn the knob to its neutral
position.
The car can’t go forward, but can go
backward.
The direction of throttle channel
is not correct.
Reset the direction of throttle
channel from original “NOR” to
“REV”, or from original “REV” to
“NOR”.
The motor doesn’t work, but the LED in
the ESC works normally.
The connections between motor
and ESC are broken.
Check the connections and replace
the defective connectors.
Motor is damaged.Replace the motor.
The motor suddenly stops running
while in working state
The throttle signal is lost. Check the transmitter and the
receiver.
Check the throttle wire connection.
Low voltage cut-off protection
or Over-heat cut-off protection
has been activated.
Replace the battery pack, or cool
down the ESC.
The car cannot get top speed and the
red LED doesn’t solid on at full throttle
Some settings in the transmitte
r
are incorrect.
Check the settings.
Set D/R, EPA, ATL to 100% or turn
the knobs to maximum value.
Set TRIM to 0 or turn the knob to its
neutral position.
Motor is cogging when accelerated
quickly.
The battery has limited
discharge ability.
Use battery with better discharge
ability.
Motor RPM is too high, the gear
ratio is too aggressive.
Use motor with lower RPM, or use
smaller pinion to get softer gear
ratio.
Problem with components in the
drive train.
Check the driving system of the car.

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Adjusting and Tuning Your Vehicle
The Conquest 10ST XB has been engineered with some available tuning
options listed here for reference. The default conguration has been chosen
to provide what we feel is the most enjoyable experience for most operating
conditions. However we do encourage experimentation and testing as that’s
where the real fun begins!
Ride Height Adjustment
It is ideal to have the drive shafts above level but still allow the shocks to
extend when you lift the vehicle while the vehicle is sitting on a at surface
with the body installed. Use the threaded adjustment collars to achieve the
desired ride height.
• Lowering the collar will raise the ride height of the vehicle and if done
excessively may decrease stability.
• Raising the collar will lower the ride height and may cause the chassis to
drag on the ground.
Upper Shock Position
There are multiple shock installation locations for the top mounting location
of the shock towers. The default positions have been chosen as a good
starting point. Moving the shock mounting location inward will result in a
slightly less responsive feel on the front or rear of the vehicle but it will be a
little more stable. Moving the shock mounting location outward will make the
truck more responsive but less stable in some conditions.
Lower Shock Position
There are multiple shock installation locations for the lower mounting
location of the shocks in the suspension arm. The default location is ideal for
the included shock length. However you can play a little.
• Moving the shocks to the inside location will result in a slightly more
responsive feel on the front or rear of the vehicle but become a little less
stable. This change will also increase the vehicle’s articulation and you
will notice more body roll. Always check and adjust, if necessary, the ride
height of your vehicle after moving the shock mounting locations.
Battery Mounting
Your vehicle comes equipped with a default mount setting for a 6-Cell NiMH
battery. It is also possible to t a 2S LiPo battery (we highly recommend hard
cased batteries that resist wear). Ensure the pack is rmly secured with the
hook and loop tape to keep it from changing position in the battery tray.

18
General Care
• Always use clean, dry cloth or soft bristle brush to clean your equipment.
• Never use chemical cleansers to avoid damage to the sensitive
electronics and plastics.
Maintenance
We want you to enjoy your product to its fullest potential. For this to happen
it is important to keep your product clean and properly maintained. Lack
of cleaning and maintenance can cause component failure. For best and
continued performance from your product it is recommended to briey
inspect your product for damage every few uses. Typically, a good time to
do this is when changing the battery in your vehicle or while it is charging.
If a problem is discovered, stop use immediately and perform repairs or
seek assistance. Continued use of failed components can cause more
unnecessary damage to your product.
ESC and Servo
The ESC and servo included in your vehicle are rated for all weather use. It
is recommended that you avoid submersion of the vehicle however running
in puddles, rain and snow should not cause damage. Always remove excess
water/snow from your vehicle after running to help prevent corrosion. Using
an air compressor is effective but please use eye protection.
Transmitter
Although the receiver included with your radio system is rated for all weather
use, the transmitter is not. The transmitter should not be used in the rain or
other wet environment to avoid damage to the sensitive electronics.
• Clean dirt and debris off of your transmitter regularly to avoid the
consequences of these getting into the sensitive electronics where they
can cause short circuits and/or restrict motion of the internal steering
and throttle mechanisms.
• Ensure the antenna is kept in proper working order. The transmitter is not
safe to use with a broken or missing antenna.
Receiver
Although the receiver included with your radio system is rated for all weather
use, it is recommended that you avoid submersion of the receiver, however
running in puddles, rain, and snow is okay.
To achieve full operating range with your radio system, it is critical that the
receiver antenna be installed properly and undamaged.
• Inspect any exposed antenna for cuts or abrasions.
• Ensure there are no kinks in the antenna or antenna tube.

19
• Never fold the end of the antenna over the tube, this will reduce the
range and damage the antenna.
• Ensure the antenna is not being pinched by the set screw that holds the
antenna tube in place.
Gears
Periodically remove the gear cover to clearly inspect the gears and ensure
there is no debris in the gear compartment.
Proper gear mesh setting is crucial for proper operation and life of gears in
your product. It is important to have the pinion gear (attached to motor) as
close to the spur gear (attached to drive shaft) as possible yet while providing
a minimal amount of backlash. Backlash is the rotation one gear has to make
before contacting the other. Having the gear mesh set too tight will cause
excess load on the electrical components and may cause premature failure.
Having gear mesh set too loose will cause excess wear and possible skipping
of teeth during operation thus causing excess wear and premature failure.
Checking the gear mesh and setting proper backlash.
1. Remove the spur gear cover.
2. Check how much movement is allowed (backlash) of the spur gear
before the pinion gear moves (this is mostly feel, not visual). Check this
movement in multiple places by rotating the spur gear approximately 1/6
rotation and rechecking.
3. If the spur gear is allowed to move more than a very small amount, or if it
there is no backlash, the gear mesh must be adjusted. If there is a lot of
movement, it is recommended to attempt to tighten the mesh. Attempted
adjustment should only improve the situation; if the mesh was correct to
begin with, you will know what that feels like, and if it wasn’t correct, it
will be when you are done after following these procedures.
Setting the Gear Mesh
1. Loosen the clamping screw securing the motor plate’s rotation in the
motor mount, only enough to allow the motor to rotate in the mount.
Check and ensure there is no debris in the gears affecting the mesh.
2. Rotate the top of the motor away from the center of the chassis, insert a
strip of notebook paper between the pinion and spur gear, then rotate the
motor plate back until there is no backlash. You will have to push/twist
relatively hard to ensure the paper is pressed all the way into the teeth.
3. Hold the motor snugly in position while retightening the screw. Only
tighten the screw until the motor won’t move. There should be a slight
gap between the coils of the spring.
4. Rotate the spur gear (turn the tires) to feed the paper out of the mesh,
re-check the gear mesh and adjust again if necessary.
5. Re-install the spur gear cover when the mesh is properly set.

20
WARNING: NEVER OPERATE YOUR VEHICLE WITH THE SPUR GEAR COVER
REMOVED. SEVERE INJURY, DAMAGE TO ELECTRICAL COMPONENTS, AND
EXCESSIVE WEAR AND TEAR ON DRIVETRAIN MAY RESULT.
Shocks
Periodically inspect the shocks for smooth motion, leaking oil and dirt residue
build up around the shaft or caps. Do not allow dirt to build up around the shock
shaft and bottom of the shock. Doing so will reduce the life of the shock and
cause a shock to leak oil. Be sure to clean the shocks regularly with a clean and
dry soft bristle brush and/or rag.
CAUTION: NEVER USE SPRAY CLEANERS TO CLEAN YOUR SHOCKS, DOING SO CAN
CAUSE DAMAGE TO THE SEALS, CAUSING THEM TO LEAK MORE AND REDUCE THE
LIEF AND PERFORMANCE OF YOUR SHOCKS.
Signs to look out for determining if your shock needs to be maintained or
rebuilt.
• Oil around the shaft means the oil leaked from inside and needs to be
replaced.
• Persistent oil around the shock shaft or lower portion of the shock typically
points to damaged O-rings which will need replacing. See your local hobby
dealer for replacement parts.
Relling your shocks:
1. Remove shock from vehicle, remove spring and top cap. Remove the bleed
screw from the cap.
2. With shock shaft extended, add oil to top of body (use only 100% silicone
oil) and reinstall the shock cap. Be sure the o-ring stays “seated” and does
not squeeze out.
3. Slowly compress the shock shaft 100% of travel using a towel or paper
napkin to clean up overowed oil, then reinstall the bleed screw. Do not
over-tighten.
4. Check for free motion of shock. If the shock feels like it gets stiffer at the
end of compression, there is too much oil or air. Compress the shaft and
remove the bleed screw slowly to allow excess air/oil to come out, then
reinstall the screw.
5. It is normal for the shock to rebound (with the spring removed) after full
compression and release.
Replacing the O-rings:
• Disassemble shock and remove shock end and shaft from the body.
• Carefully remove lower cap by unscrewing from the shock body.
• Remove the O-ring and spacer and replace with genuine replacement parts.
• Re-assemble the shock following the relling instructions above.