2
BEFORE YOU START
The T4 is a high-competition, high-quality, 1/10-scale touring car intended for
persons aged 16 years and older with previous experience building and operating
RC model racing cars. This is not a toy; it is a precision racing model. This model
racing car is not intended for use by beginners, inexperienced customers, or
by children without direct supervision of a responsible, knowledgeable adult.
If you do not fulfill these requirements, please return the kit in unused and
unassembled form back to the shop where you have purchased it.
Before building and operating your T4, YOU MUST read through all of the
operating instructions and instruction manual and fully understand them to get
the maximum enjoyment and prevent unnecessary damage. Read carefully and
fully understand the instructions before beginning assembly.
Make sure you review this entire manual, the included set-up book, and examine
all details carefully. If for some reason you decide The T4 is not what you wanted
or expected, do not continue any further. Your hobby dealer cannot accept your T4
kit for return or exchange after it has been partially or fully assembled.
Contents of the box may differ from pictures. In line with our policy of continuous
product development, the exact specifications of the kit may vary without prior
notice.
SAFETY PRECAUTIONS
Contains:
LEAD (CAS 7439-92-1) ANTIMONY (CAS 7440-36-0)
WARNING: This product contains a chemical known to the state of California to
cause cancer and birth defects or other reproductive harm.
CAUTION: CANCER HAZARD
Contains lead, a listed carcinogen. Lead is harmful if ingested. Wash thoroughly
after using. DO NOT use product while eating, drinking or using tobacco
products. May cause chronic effects to gastrointestinal tract, CNS, kidneys, and
blood. MAY CAUSE BIRTH DEFECTS.
When building, using and/or operating this model always wear protective
glasses and gloves.
Take appropriate safety precautions prior to operating this model. You are
responsible for this model‘s assembly and safe operation! Please read the
instruction manual before building and operating this model and follow
all safety precautions. Always keep the instruction manual at hand for quick
reference, even after completing the assembly. Use only genuine and original
authentic XRAY parts for maximum performance. Using any third party parts on
this model will void guaranty immediately.
Improper operation may cause personal and/or property damage. XRAY and
its distributors have no control over damage resulting from shipping, improper
construction, or improper usage. XRAY assumes and accepts no responsibility for
personal and/or property damages resulting from the use of improper building
materials, equipment and operations. By purchasing any item produced by XRAY,
the buyer expressly warrants that he/she is in compliance with all applicable
federal, state and local laws and regulation regarding the purchase, ownership
and use of the item. The buyer expressly agrees to indemnify and hold harmless
XRAY for all claims resulting directly or indirectly from the purchase, ownership
or use of the product. By the act of assembling or operating this product, the
user accepts all resulting liability. If the buyer is not prepared to accept this
liability, then he/she should return this kit in new, unassembled, and unused
condition to the place of purchase.
IMPORTANT NOTES – GENERAL
• This product is not suitable for children under 16 years of age without the
direct supervision of a responsible and knowledgeable adult.
• Carefully read all manufacturers warnings and cautions for any parts used in
the construction and use of your model.
• Assemble this kit only in places away from the reach of very small children.
• First-time builders and users should seek advice from people who have
building experience in order to assemble the model correctly and to allow the
model to reach its performance potential.
• Exercise care when using tools and sharp instruments.
• Take care when building, as some parts may have sharp edges.
• Keep small parts out of reach of small children. Children must not be allowed
to put any parts in their mouth, or pull vinyl bag over their head.
• Read and follow instructions supplied with paints and/or cement, if used (not
included in kit).
• Immediately after using your model, do NOT touch equipment on the
model such as the motor and speed controller, because they generate high
temperatures. You may seriously burn yourself seriously touching them.
• Follow the operating instructions for the radio equipment at all times.
• Do not put fingers or any objects inside rotating and moving parts, as this
may cause damage or serious injury as your finger, hair, clothes, etc. may get
caught.
• Be sure that your operating frequency is clear before turning on or running
your model, and never share the same frequency with somebody else at the
same time. Ensure that others are aware of the operating frequency you are
using and when you are using it.
• Use a transmitter designed for ground use with RC cars. Make sure that no
one else is using the same frequency as yours in your operating area. Using
the same frequency at the same time, whether it is driving, flying or sailing,
can cause loss of control of the RC model, resulting in a serious accident.
• Always turn on your transmitter before you turn on the receiver in the car.
Always turn off the receiver before turning your transmitter off.
• Keep the wheels of the model off the ground when checking the operation of
the radio equipment.
• Disconnect the battery pack before storing your model.
• When learning to operate your model, go to an area that has no obstacles
that can damage your model if your model suffers a collision.
• Remove any sand, mud, dirt, grass or water before putting your model away.
• If the model behaves strangely, immediately stop the model, check and clear
the problem.
• To prevent any serious personal injury and/or damage to property, be
responsible when operating all remote controlled models.
• The model car is not intended for use on public places and roads or areas where
its operation can conflict with or disrupt pedestrian or vehicular traffic.
• Because the model car is controlled by radio, it is subject to radio interference
from many sources that are beyond your control. Since radio interference can
cause momentary loss of control, always allow a safety margin in all directions
around the model in order to prevent collisions.
• Do not use your model:
- Near real cars, animals, or people that are unaware that an RC car is being
driven.
- In places where children and people gather
- In residential districts and parks
- In limited indoor spaces
- In wet conditions
- In the street
- In areas where loud noises can disturb others, such as hospitals and
residential areas.
- At night or anytime your line of sight to the model may be obstructed or
impaired in any way.
To prevent any serious personal injury and/or damage to property, please be
responsible when operating all remote controlled models.
Failure to follow these instructions will be considered as abuse and/or neglect.
CUSTOMER SUPPORT
XRAY Europe
K Vystavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: 421-32-7401100
Fax: 421-32-7401109
E-mail: info@teamxray.com
We have made every effort to make these instructions as easy to understand as possible.
However, if you have any difficulties, problems, or questions, please do not hesitate to
contact the XRAY support team at info@teamxray.com. Also, please visit our Web site
at www.teamxray.com to find the latest updates, set-up information, option parts, and
many other goodies. We pride ourselves on taking excellent care of our customers.
You can join thousands of XRAY fans and enthusiasts in our online community at:
www.teamxray.com
XRAY USA
RCAmerica, 2970 Blystone Lane, Suite 109
Dallas, Texas 75220
USA
Phone: (800) 519-7221 * (214) 744-2400
Fax: (214) 744-2401
E-mail: xray@rcamerica.com
3
IMPORTANT NOTES – ELECTRICAL
• Insulate any exposed electrical wiring (using heat shrink tubing or electrical
tape) to prevent dangerous short circuits. Take maximum care in wiring,
connecting and insulating cables. Make sure cables are always connected
securely. Check connectors for if they become loose. And if so, reconnect
them securely. Never use R/C models with damaged wires. A damaged wire
is extremely dangerous, and can cause short-circuits resulting in fire. Please
have wires repaired at your local hobby shop.
• Low battery power will result in loss of control. Loss of control can occur due to
a weak battery in either the transmitter or the receiver. Weak running battery
may also result in an out of control car if your car‘s receiver power is supplied
by the running battery. Stop operation immediately if the car starts to slow
down.
• When not using RC model, always disconnect and remove battery.
• Do not disassemble battery or cut battery cables. If the running battery short-
circuits, approximately 300W of electricity can be discharged, leading to fire
or burns. Never disassemble battery or cut battery cables.
• Use a recommended charger for the receiver and transmitter batteries
and follow the instructions correctly. Over-charging, incorrect charging, or
using inferior chargers can cause the batteries to become dangerously hot.
Recharge battery when necessary. Continual recharging may damage battery
and, in the worst case, could build up heat leading to fire. If battery becomes
extremely hot during recharging, please ask your local hobby shop for check
and/or repair and/or replacement.
• Regularly check the charger for potential hazards such as damage to the
cable, plug, casing or other defects. Ensure that any damage is rectified
before using the charger again. Modifying the charger may cause short-circuit
or overcharging leading to a serious accident. Therefore do not modify the
charger.
• Always unplug charger when recharging is finished.
• Do not recharge battery while battery is still warm. After use, battery retains
heat. Wait until it cools down before charging.
• Do not allow any metal part to short circuit the receiver batteries or other
electrical/electronic device on the model.
• Immediately stop running if your RC model gets wet as may cause short
circuit.
• Please dispose of batteries responsibly. Never put batteries into fire.
WARRANTY
XRAY guarantees this model kit to be free from defects in both material and
workmanship within 30 days of purchase. The total monetary value under
warranty will in no case exceed the cost of the original kit purchased. This
warranty does not cover any components damaged by use or modification or
as a result of wear. Part or parts missing from this kit must be reported within
30 days of purchase. No part or parts will be sent under warranty without proof
of purchase. Should you find a defective or missing part, contact the local
distributor. Service and customer support will be provided through local hobby
store where you have purchased the kit, therefore make sure to purchase any
XRAY products at your local hobby store. This model racing car is considered
to be a high-performance racing vehicle. As such this vehicle will be used in
an extreme range of conditions and situations, all which may cause premature
wear or failure of any component. XRAY has no control over usage of vehicles
once they leave the dealer, therefore XRAY can only offer warranty against all
manufacturer‘s defects in materials, workmanship, and assembly at point of
sale and before use. No warranties are expressed or implied that cover damage
caused by what is considered normal use, or cover or imply how long any
model cars‘ components or electronic components will last before requiring
replacement.
Due to the high performance level of this model car you will need to periodically
maintain and replace consumable components. Any and all warranty coverage
will not cover replacement of any part or component damaged by neglect,
abuse, or improper or unreasonable use. This includes but is not limited to
damage from crashing, chemical and/or water damage, excessive moisture,
improper or no maintenance, or user modifications which compromise the
integrity of components. Warranty will not cover components that are considered
consumable on RC vehicles. XRAY does not pay nor refund shipping on any
component sent to XRAY or its distributors for warranty. XRAY reserves the right to
make the final determination of the warranty status of any component or part.
Limitations of Liability
XRAY makes no other warranties expressed or implied. XRAY shall not be liable
for any loss, injury or damages, whether direct, indirect, special, incidental, or
consequential, arising from the use, misuse, or abuse of this product and/or any
product or accessory required to operate this product. In no case shall XRAY‘s
liability excess the monetary value of this product.
Take adequate safety precautions prior to operating this model. You
are responsible for this model’s assembly and safe operation.
Disregard of the any of the above cautions may lead to accidents,
personal injury, or property damage. XRAY MODEL RACING CARS
assumes no responsibility for any injury, damage, or misuse of this
product during assembly or operation, nor any addictions that may
arise from the use of this product.
All rights reserved.
QUALITY CERTIFICATE
XRAY MODEL RACING CARS uses only the highest quality materials, the best
compounds for molded parts and the most sophisticated manufacturing processes
of TQM (Total Quality Management). We guarantee that all parts of a newly-
purchased kit are manufactured with the highest regard to quality. However, due
to the many factors inherent in model racecar competition, we cannot guarantee
any parts once you start racing the car. Products which have been worn out,
abused, neglected or improperly operated will not be covered under warranty.
We wish you enjoyment of this high-quality and high-performance RC car and
wish you best success on the track!
In line with our policy of continuous product development, the exact specifications of the kit may
vary. In the unlikely event of any problems with your new kit, you should contact the model shop
where you purchased it, quoting the part number.
We do reserve all rights to change any specification without prior notice. All rights reserved.
R/C & BUILDING TIPS
• Make sure all fasteners are properly tightened. Check them periodically.
• Make sure that chassis screws do not protrude from the chassis.
• For the best performance, it is very important that great care is taken to ensure
the free movement of all parts.
• Clean all ball-bearings so they move very easily and freely.
• Tap or pre-thread the plastic parts when threading screws.
• Self-tapping screws cut threads into the parts when being tightened. Do not use
excessive force when tightening the self-tapping screws because you may strip
out the thread in the plastic. We recommended you stop tightening a screw
when you feel some resistance.
• Ask your local hobby shop for any advice.
Please support your local hobby shop. We at XRAY Model Racing Cars support
all local hobby dealers. Therefore we ask you, if at all possible, to purchase
XRAY products at your hobby dealer and give them your support like we do. If
you have difficulty finding XRAY products, please check out www.teamxray.com
to get advice, or contact us via email at info@teamxray.com, or contact the XRAY
distributor in your country.
4
NOT
INCLUDED
To ensure that you always have access to the most
up-to-date version of the XRAY Set-up Book, XRAY
will now be offering only the digital online version
at our Web site at www.teamxray.com. By offering
this online version instead of including a hardcopy
printed version in kits, you will always be assured of
having the most current updated version.
XRAY offers wide range of optional
tuning parts which are listed in a table
like this. Please reffer to the exploded
view of each main section to verify which
part is included in the kit while all other
parts are available only as an optional
part and must be purchased separately.
SYMBOLS USED
L=R 2x
CA
OIL
CORRECT WRONG
Overtightened
The threads
are stripped.
Part bags used Assemble left and right
sides the same way
Assemble in the specified
order
Pay attention here Assemble as many times
as specified (here twice)
Apply CA glue
TOOLS REQUIRED
EQUIPMENT REQUIRED
EQUIPMENT
INCLUDED
Apply oil Use pliers
XRAY Premium Silicone
Oil 350cSt (#359235)
Oil 700cSt (#359270)
Side Cutters
(HUDY #189010)
Hobby Knife Turnbuckle Wrench
4mm (HUDY #181040)
Reamer
(HUDY #107600)
or
(HUDY #107601)
Combination Pliers
(HUDY #189020)
HUDY TOOLS: Allen: 1.5mm, 2.0mm, 3.0mm
Socket: 5.5mm, 7.0mm
Transmitter Steering ServoReceiver
TL
05
Tighten screw
gently
Apply thread lock
Lexan Paint ™ Battery Charger Wheels & Tires & Inserts
Apply grease Ensure smooth
non-binding movement
2.0 mm
3.0 mm
1.5 mm
7.0 mm
5.5 mm
Graphite Grease
(HUDY #106210)
Bearing Oil
(HUDY #106230)
Follow Set-Up Book
FRONT & REAR AxLES
Scissors
(HUDY #188990)
4.0
mm
SAMPLE OF
OPTIONAL PARTS
#30XXXX OPTION 1
#30XXXX OPTION 2
#30XXXX OPTION 3
CONTENTS
Speed Controller
LiPo Battery
Pinion Gear and Setscrew
190mm Bodyshell
Electric Motor &
Fibre Tape (HUDY #107870)
Double-sided Tape
WARNINGS 2-3
TOOLS AND ACCESSORIES 4
CHASSIS PREPARATION 5
1. GEAR DIFF. & FRONT SOLID AXLE 6-8
2. CENTRAL TRANSMISSION 9-11
3. FRONT & REAR SUSPENSION 12-14
4. STEERING 14-15
5. FRONT & REAR TRANSMISSION 17-21
6. SHOCK ABSORBERS 22-24
7. FRONT & REAR ASSEMBLY 25-27
7. FINAL ASSEMBLY 28-30
BLANK SET-UP SHEET 31
5
CA
At the beginning of each section is an exploded view of the parts to be assembled. There is also a
list of all the parts and part numbers that are related to the assembly of that section.
The part descriptions are color-coded to make it easier for you to identify the source of a part.
Here are what the different colors mean:
STYLE A - indicates parts that are included in the bag marked for the section.
STYLE B - indicates parts that are included in the box.
STYLE C - indicates parts that are already assembled from previous steps.
CHASSIS PREPARATION
COLOR INDICATIONS
To protect and seal edges of graphite parts, sand edges smooth and then apply CA glue.
Do this for: chassis edges, countersunk holes, and shock towers.
CA CA
Apply only a bit of CA glue.
on the countersunk holes.
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1. GEAR DIFFERENTIAL & FRONT SOLID AXLE
Use tweezers to
insert pin.
981210
P 2x10
981210
P 2x10
972050
O 5x2
972050
O 5x2
964050
S 5x15x0.3
964050
S 5x15x0.3
➊
➋
➌
➍➍ ➍
➎
➎
➊
➋
➌
➍
➎
DETAIL ➎STEP
STEP DETAIL
30 4900 XRAY GEAR DIFFERENTIAL - SET
30 4910 COMPOSITE GEAR DIFF. CASE & COVER
30 4930 COMPOSITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
30 4970 ALU GEAR DIFF OUTDRIVE ADAPTER - 7075 T6 (2)
30 4980 COMPOSITE GEAR DIFF CROSS PIN
30 4990 DIFF GASKET (4)
30 5003 ALU BALL DIFFERENTIAL 34T + 38T PULLEY (OPTION)
30 5105 XRAY MULTI-DIFF T3/T4 LiPo (OPTION)
30 5135 COMPOSITE SOLID AXLE DRIVESHAFT ADAPTERS (2)
30 5188 COMPOSITE SOLID AXLE 38T - SET
90 2310 HEX SCREW SH M3x10 (10)
90 3256 HEX SCREW SFH M2.5x6 (10)
94 1015 HIGH-SPEED BALL-BEARING 10x15x4 RUBBER SEALED (2)
96 4031 WASHER S 3.5x10x0.2 (10)
96 4050 WASHER S 5x15x0.3 (10)
97 1240 SILICONE O-RING 24x0.7 (10)
97 2050 SILICONE O-RING 5x2 (10)
98 1210 PIN 2x10 (10)
304970
#304971
HUDY Spring Steel™ outdrives - Optional
#305136
ALU SOLID DRIVESHAFT ADAPTERS - Optional
#305137
STEEL SOLID AXLE DRIVESHAFT ADAPTERS - Optional
30491