BEFORE YOU START
The XB8E is a high-competition, high-quality, 1/8 electric buggy 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 XB8E, YOU MUST read through all of the
operating instructions and instruction manual and fully understand them to get
CUSTOMER SUPPORT
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
the maximum enjoyment and prevent unnecessary damage. Read carefully and
fully understand the instructions before beginning assembly.
Make sure you review this entire manual, download and use set-up book from the
web, and examine all details carefully. If for some reason you decide the XB8E is
not what you wanted or expected, do not continue any further. Your hobby dealer
cannot accept your XB8E 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.
XRAY Europe
K Výstavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: +421-32-7401100
Fax: +421-32-7401109
Email: info@teamxray.com
XRAY USA
RC America, 2030 Century Center Blvd #15
Irving, TX 75062
USA
Phone: (214) 744-2400
Fax: (214) 744-2401
Email: xray@rcamerica.com
Failure to follow these instructions will be considered as abuse and/or neglect.
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.
2
• 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.
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 shortcircuits, 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.
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.
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 newlypurchased 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.
3
SYMBOLS USED
Part bags used
Assemble in the
specified order
➊ ➋ ➌
Cut off shaded
portion
Use special
tool
Assemble left and
right sides the
same way
Assemble front
and rear the same
way
Pay attention
here
Apply instant
glue
2x
L=R
Cut off
remaining
material
Assemble as
many times
as specified
(here twice)
Time
Use cleaner
or WD40
Tighten screw
gently
CA
Apply oil
Apply grease
Apply
threadlock
Follow tip here
Follow Set-Up
Book
OIL
Ensure smooth
non-binding
movement
Use pliers
SET-UP
BOOK
TOOLS REQUIRED
Phillips 5.0mm
(HUDY TOOLS)
17mm Wheel Nut Tool
(HUDY #107570)
Turnbuckle Wrench
(HUDY #181040 4mm)
(HUDY #181050 5mm)
Special Tool for all turnbuckles,
nuts (HUDY #181090)
Cross Wrench
(HUDY #107581)
Needle Nose Pliers
(HUDY #189020)
Snap Ring Pliers
(HUDY #189040)
Scissors
(HUDY #188990)
Body Reamer
(HUDY #107600)
or
(HUDY #107601)
Allen 1.5 / 2.0 / 2.5 / 3.0mm
(HUDY TOOLS)
Ball Allen 2.5mm
(HUDY TOOLS)
ARM REAMER 3mm/4mm
(HUDY TOOLS)
Socket 5.0 / 5.5mm
(HUDY TOOLS)
Side Cutters
(HUDY #189010)
Hobby Knife
TOOLS & EQUIPMENT INCLUDED
Silicone Shock Oil
(HUDY #106351 500cSt 100ml)
(HUDY #106371 700cSt 100ml)
Silicone Diff Oil
(HUDY #106431 3000cSt 100ml)
(HUDY #106451 5000cSt 100ml)
NOT INCLUDED
Graphite Grease
(HUDY #106210)
SET-UP
BOOK
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 website 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.
EQUIPMENT REQUIRED
Transmitter
Electric Motor
Pinion Gear
Speed Controller
LiPo Battery
Battery Charger
Threadlock
CA Glue
Transmitter Batteries
Tires & Wheels
Lexan™ Paint
Receiver
Steering Servo
4
XB8E TECH TIPS
TIP FRONT & REAR DIFF GEAR MESH ADJUSTMENT
If there is too much or too little diff side play, this may create non-optimal gear mesh between the diff gear and the pinion drive gear. This is easily resolved by inserting 1 or 2 of the included thin shims behind a diff
outdrive ball-bearing, depending on how much play there is.
THE LOCATION OF THE SHIM(S) DEPENDS ON WHETHER YOU ARE TRYING TO CLOSE OR OPEN THE GAP:
TO CLOSE A WIDE GAP
CLOSE A WIDE GAP
To CLOSE a wide gap:
add 1 or 2 shims against diff spur gear
insert shim(s) here
WASHER
#962131 S 13 x 16 x 0.1 mm (10)
#962130 S 13 x 16 x 0.2 mm (10)
TO OPEN A NARROW GAP
OPEN A NARROW GAP
To OPEN a narrow gap:
add 1 or 2 shims on the other side of the diff, away from spur gear
insert shim(s) here
SUSPENSION & DRIVETRAIN MAINTENANCE
• Check suspension for free movement during building and operation, and especially after running
and if you have crashed the car. If the suspension does not move freely, use the appropriate HUDY
Arm Reamer to clean and resize the holes of the suspension arms.
• Regularly check the drive shaft pins (both side and center) and if they show any wear must be
immediately replaced by new pins. If the car is run with worn pins, excessive wear on the diff
outdrives will result. The 106000 HUDY Drive Pin Replacement Tool (for 3mm Pins) is a compact,
rugged multi-use tool set for replacing 3mm drive pins in drive shafts. Use the HUDY replacement
drive shaft pins 3x14 (#106050).
• Regularly inspect and replace the connecting pins which connect the center drive shafts with the
pinion gear, and also the pins that connect the wheel drive shafts with wheel axles. Use HUDY
Graphite Grease to lubricate the drive shaft connecting joints and the diff gears.
• Pivot balls and ball-joints will naturally wear for some time and will generate play. If there is too
much play the pivot balls and ball joints need to be replaced.
• If the car is run in wet conditions, apply WD-40® on all drivetrain parts before the run. After the
run, clean and dry the parts again.
HUDY SPRING STEEL™
The HUDY Spring Steel™ used in the car is the strongest and most durable steel material on the RC market. While items made from HUDY Spring Steel™ are still subject to wear, the lifespan is considerably
longer than any other material. As parts made from HUDY Spring Steel™ wear, the brown color will after some time “go down” but it will not affect the strength of the material. The brown color is only a
surface treatment and if the brown color will wear the durability of the part will be still strong.
TIP DRIVE SHAFT PINS SERVICING
To enjoy the longest possible lifespan of the drive shafts and diff outdrives, it is extremely important to properly service the drive shaft pins.
Inspect the pins after every 3 hours of runtime. If the pins show any wear, replace them with new pins.
Do not use drive shafts
when the pins are worn.
Press out the worn pins.
Press in new pins and
regularly inspect for wear.
For easy drive pin replacements use #106000
HUDY Drive Pin Replacement Tool.
To replace the worn pins use only
premium HUDY drive pins #106050.
TIP INSTALLING PIVOT BALLS INTO COMPOSITE BALL-JOINTS
Place the pivot ball on the ball joint
and use a screw to tighten it to an
engine mount or some other part.
Tighten screw until pivot ball is tight
against block.
Lift ball joint until it snaps into place over The finished joint.
pivot ball. Ball joint should move freely.
Loosen and remove screw.
5
1. FRONT & REAR DIFFERENTIALS
355061
Front
DIFF LARGE BEVEL GEAR
#355038
38T
OPTION*
#355040
40T
OPTION*
#355046
46T
INCLUDED
940816
* These OPTION bevel gears must be used with OPTION #355110
bevel gear 12T
964030
355063
Rear
971060
355090
355020
355030
980212
355080
971060
903312
355030
964060
940816
355061
Front
355046
#355105
ACTIVE FRONT DIFF
355063
Rear
BAGS
35 5003
35 5020
35 5030
35 5046
35 5061
35 5063
35 5080
2x
• High-performance adjustable front Active Differential™ for improved speed & handling
• Fully adjustable on- and off-power performance using different internal segments and gears
• Improves diff action and increases traction
• Easy and consistent steering
35 5090
90 3312
94 0816
96 4030
96 4060
97 1060
98 0212
XB8 FRONT/REAR DIFFERENTIAL 46T - SET
DIFFERENTIAL CASE
STEEL DIFF BEVEL & SATELLITE GEARS (2+4)
FRONT/REAR DIFF LARGE BEVEL GEAR 46T - HUDY STEEL
FRONT DIFF OUTDRIVE ADAPTER - LONG (2)
F/R DIFF OUTDRIVE ADAPTER - LIGHTW. - HUDY SPRING STEEL™ (2)
DIFF PIN (2)
F=R
DIFF GASKET (4)
HEX SCREW SFH M3x12 (10)
HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2)
WASHER S 3.5x12x0.2 (10)
WASHER S 6x18x0.2 (10)
SILICONE O-RING 6x1.5 (10)
PIN 2x11.6 (10)
➏
Graphite Grease
(HUDY #106210)
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
940816
BB 8x16x5
➎
➊
➍
Graphite Grease
(HUDY #106210)
964060
S 6x18x0.2
IMPORTANT!
Use the same diff outdrives on both ends of a diff.
➋
REAR
➌
Step ➎ ➏ Detail
971060
O 6x1.5
FRONT
DETAIL
Graphite Grease
(HUDY #106210)
DIFF LARGE BEVEL GEAR
980212
P 2x11.6
SET-UP
BOOK
DIFFERENTIAL GEARS
6
#355038
38T
OPTION*
#355040
40T
OPTION*
#355046
46T
INCLUDED
* These OPTION bevel gears must be used with OPTION #355110
➎
bevel gear 12T
➏
1. FRONT & REAR DIFFERENTIALS
2x
Graphite Grease
(HUDY #106210)
F=R
Front
IMPORTANT!
Use the same diff outdrives on both ends of a diff.
➌
Rear
940816
➋
BB 8x16x5
Graphite Grease
(HUDY #106210)
Graphite Grease
(HUDY #106210)
964060
➍
S 6x18x0.2
➊
➎
Step ➎ Detail
DETAIL
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
971060
O 6x1.5
980212
➏
P 2x11.6
VERY IMPORTANT!
Use these silicone oils included in the kit for initial settings:
Front diff: 5 000cSt / Rear diff: 3 000cSt
INCORRECT
CORRECT
903312
OIL
Fill the differentials
with oil just above the
satellite gears.
SFH M3x12
IMPORTANT!
Do not overfill the differential.
If there is too much oil in the
differential, it may leak after
it cools down after use.
964030
S 3.5x12x0.2
To ensure you have the same amount of oil from rebuild to rebuild, do the following:
#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g
OIL
SET-UP
BOOK
DIFFERENTIAL OIL
Front diff:
Silicone oil 5 000cSt
Fill just above the
satellite gears.
Rear diff:
Silicone oil 3 000cSt
Fill just above the
satellite gears.
42.1g
40g
OIL
40g + 2.1g = 42.1g
1. Put the diff (without oil) on the scale and
check the weight (approximately 40g).
OIL
2. Slowly pour oil into the diff and watch
the weight. Add 2.1g of oil into the diff. The
approximate weight of the diff+oil is 42.1g.
Finish tightening in this order
Tighten the screws equally
➊
➌
32.3~32.5 mm
➍
➋
After assembly the differentials should have a length of 32.3~32.5
mm measured from the ends of the installed ball-bearings. If
differentials are longer, retighten the 4 screws holding the crown gears.
7
1. CENTER DIFFERENTIAL
CENTER DIFF SPUR GEAR
#355048
48T OPTION
#355049
47T OPTION
#355050
46T INCLUDED
#355051
45T OPTION
#355052
44T OPTION
355071
964060
964030
940816
355030
355020
971060
355090
980212
355030
355080
971060
940816
355050
903312
355071
BAG
35 5012
35 5020
35 5030
35 5050
35 5071
35 5080
35 5090
CENTRAL DIFFERENTIAL - SET
DIFFERENTIAL CASE
STEEL DIFF BEVEL & SATELLITE GEARS (2+4)
CENTER DIFF SPUR GEAR 46T
CENTER DIFF OUTDRIVE ADAPTER - LIGHTWEIGHT - HUDY STEEL (2)
DIFF PIN (2)
DIFF GASKET (4)
90 3312
94 0816
96 4030
96 4060
97 1060
98 0212
HEX SCREW SFH M3x12 (10)
HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2)
WASHER S 3.5x12x0.2 (10)
WASHER S 6x18x0.2 (10)
SILICONE O-RING 6x1.5 (10)
PIN 2x11.6 (10)
➏
Graphite Grease
(HUDY #106210)
940816
➍
➎
BB 8x16x5
CENTER DIFF SPUR GEAR
➊
Graphite Grease
(HUDY #106210) ➋
964060
S 6x18x0.2
➌
971060
O 6x1.5
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
#355048
48T
OPTION
#355049
47T
OPTION
#355050
46T
INCLUDED
#355051
45T
OPTION
#355052
44T
OPTION
Step ➎ ➏ Detail
DETAIL
980212
P 2x11.6
SET-UP
BOOK
DIFFERENTIAL GEARS
8
➎
➏
1. CENTER DIFFERENTIAL
➌
➋
Graphite Grease
(HUDY #106210)
940816
BB 8x16x5
➊
➍
964060
Graphite Grease
(HUDY #106210)
➏
S 6x18x0.2
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
Step ➎ ➏ Detail
DETAIL
➎
971060
O 6x1.5
980212
P 2x11.6
VERY IMPORTANT!
Use the following silicone oil included in the kit for initial setting:
Center diff: 5 000cSt
INCORRECT
CORRECT
903312
Do not overfill the differential.
If there is too much oil in the
differential, it may leak after
it cools down after use.
OIL
SFH M3x12
IMPORTANT!
Fill the differentials
with oil just above
the satellite gears.
964030
S 3.5x12x0.2
To ensure you have the same amount of oil from rebuild to rebuild, do the following:
#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g
42.1g
40g
OIL
SET-UP
BOOK
DIFFERENTIAL OIL
Center diff:
Silicone oil 5 000cSt
Fill to just above the satellite gears.
40g + 2.1g = 42.1g
1. Put the diff (without oil) on the scale and
check the weight (approximately 40g).
OIL
Tighten the screws equally
2. Slowly pour oil into the diff and watch
the weight. Add 2.1g of oil into the diff. The
approximate weight of the diff+oil is 42.1g.
Finish tightening in this order
➊
➌
32.3~32.5 mm
➍
➋
After assembly the differential should have a length of 32.3~32.5 mm
measured from the ends of the installed ball-bearings. If differential is
longer, retighten the 4 screws holding the spur gear.
9
2. FRONT TRANSMISSION
980314
355427
Short
355472
901404
355471
355416
352006
355236
355114
940816
352006
940816
355003
Front Diff
BAG
35 2006
35 5003
35 5114
35 5236
35 5416
35 5427
35 5471
XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR
XB8 FRONT/REAR DIFFERENTIAL 46T - SET
BEVEL DRIVE GEAR 14T
CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
CENTRAL CVD SHAFT UNIVERSAL JOINT - HUDY SPRING STEEL™
FRONT CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™
DRIVE SHAFT LOCKING RING (2)
step 1
SHORT CVD DRIVE SHAFT
901404
➎
SB M4x4
Apply oil from inside
to prevent breakage
of the rubber boot.
902312
SH M3x12
35 5472
DRIVE SHAFT BOOT (2)
90 1404
90 2312
94 0816
98 0314
HEX SCREW SB M4x4 (10)
HEX SCREW SH M3x12 (10)
HIGH-SPEED BALL-BEARING 8x16x5 RUBBER SEALED (2)
PIN 3x14 (10)
step 2
Push joint against gear to remove gap.
Tighten set screw onto gear flat spot.
Follow the TECH TIP on page 5
for drive shaft pin servicing
➌
OIL
902312
➋
DETAIL
➎
➊
➍
Step ➎ Detail
➊
NOTE
ORIENTATION
The ring can be assembled by hand, but
for easy disassemby we recommend using
snap ring pliers (HUDY #189040)
Step ➍ Detail
➌
➎
Graphite Grease
(HUDY #106210)
➋
DETAIL
➍
940816
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
PIN
BB 8x16x5
BEFORE inserting the clip on the central CVD shaft joint, apply a small
amount of threadlock on the area where the clip goes.
980314
P 3x14
AFTER inserting the clip on the central CVD shaft joint, turn the clip so that
the slot is 90°from the pin. This will prevent the pin from opening the clip.
step 3
FRONT DIFF 5 000 cSt
DETAIL
Cut on both front
and rear bulkhead blocks
Graphite Grease
(HUDY #106210)
10
2. REAR TRANSMISSION
355625
Long
355472
#353052
XB8 GRAPHITE REAR SHOCK TOWER 3.5MM
980314
901404
355471
355416
352006
355236
355114
940816
940816
355003
Rear diff
BAG
35 2006
35 5003
35 3050
35 5114
35 5236
35 5416
35 5625
XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR
XB8 FRONT/REAR DIFFERENTIAL 46T - SET
XB8 ALU REAR SHOCK TOWER - CNC MACHINED 7075 T6 (4MM)
BEVEL DRIVE GEAR 14T
CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
CENTRAL CVD SHAFT UNIVERSAL JOINT - HUDY SPRING STEEL™
REAR CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™
SB M4x4
➎
Apply oil from inside to prevent
breakage of the rubber boot.
SH M3x12
90 1404
90 2312
94 0816
98 0314
HEX SCREW SB M4x4 (10)
HEX SCREW SH M3x12 (10)
HIGH-SPEED BALL-BEARING 8x16x5 RUBBER SEALED (2)
PIN 3x14 (10)
step 2
Push joint against gear to remove gap.
Tighten set screw onto gear flat spot.
Follow the TECH TIP on page 5
for drive shaft pin servicing.
DETAIL
➋
➎
➊
Graphite Grease
(HUDY #106210)
902312
DRIVE SHAFT LOCKING RING (2)
DRIVE SHAFT BOOT (2)
➌
OIL
902312
902312
35 5471
35 5472
step 1
LONG CVD DRIVE SHAFT
901404
353050
352006
➍
The ring can be assembled by hand,
but for easy disassembly we recommend
using snap ring pliers (HUDY #189040)
Step ➍ Detail
➌
NOTE
ORIENTATION
Step ➎ Detail
➎
➊
DETAIL
➋
➍
PIN
940816
BB 8x16x5
980314
P 3x14
BEFORE inserting the clip on the central CVD shaft joint, apply a small amount of
threadlock on the area where the clip goes.
AFTER inserting the clip on the central CVD shaft joint, turn the clip so that the slot is
90°from the pin. This will prevent the pin from opening the clip.
step 3
DETAIL
Cut on both front and
rear bulkhead blocks
REAR DIFF 3 000 cSt
Graphite Grease
(HUDY #106210)
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
step 4
NOTE
ORIENTATION
#353052
XB8 GRAPHITE REAR SHOCK TOWER 3.5MM
11
3. REAR SUSPENSION
REAR ANTI-ROLL BARS
901305
903308
#353422 ø2.2mm
OPTION
#353424 ø2.4mm
OPTION
#353426 ø2.6mm
OPTION
#353428 ø2.8mm
INCLUDED
#353430 ø3.0mm
OPTION
352006
353428
901303
909395
333450
901312
352470
352460
RR
352470
353123
353325
352314
901408
353371
357212
RF
352314
353317
353113
902318
909372
353192
902308
BAG
12
33 3450
35 2006
35 2314
35 2460
35 2470
35 3113
35 3123
35 3192
35 3317
35 3325
35 3371
35 3428
ANTI-ROLL BAR BALL JOINT 5.8 MM (2)
XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR
COMPOSITE ECCENTRIC BUSHINGS - V2 (2)
PIVOT BALL 5.8 (10)
BALL JOINT 5.8 (8)
XB8’16 COMPOSITE REAR LOWER SUSPENSION ARM - RIGHT
XB8’16 COMPOSITE REAR LOWER SUSPENSION ARM - LEFT
XB8 COMPOSITE REAR MUD PROTECTOR (L+R)
XB8 ALU REAR LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL-CENTER
XB8 ALU REAR LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL-CENTER
SET OF COMPOSITE LOWER ARM SHIMS
REAR ANTI-ROLL BAR 2.8MM
35 7212
LOWER INNER PIVOT PIN F+R (2)
90 1303
90 1305
90 1312
90 1408
90 2308
90 2318
90 3308
90 9372
90 9395
HEX SCREW SB M3x3 (10)
HEX SCREW SB M3x5 (10)
HEX SCREW SB M3x12 (10)
HEX SCREW SB M4x8 (10)
HEX SCREW SH M3x8 (10)
HEX SCREW SH M3x18 (10)
HEX SCREW SFH M3x8 (10))
SCREW PHILLIPS SS 3.5x22 (10)
SCREW PHILLIPS SS 3.5x45 (10)
3. REAR SUSPENSION
REAR ARM
Push the arm from both sides to create play
DETAIL
DETAIL
DETAIL
353371
SHIM 4x10x2
Check for free movement
901408
SB M4x8
3.5x45mm
➍
RR
➌
➊
909372
SS 3.5x22
RR
1°
ARM
NOTE ORIENTATION
0.5°
INITIAL SETTING
➎
4x8mm
2mm
➋
➌
➊
RF
ARM
NOTE ORIENTATION
➍
3.5x22mm
RF
DETAIL
909395
SS 3.5x45
If the suspension arm does not move
freely use a HUDY Arm Reamer to
size the holes of the arms.
(HUDY #107634)
DOWNSTOP SETTING
3.3mm
ARM REAMER
0.5°
1°
INITIAL SETTING
DETAIL
All possible mounting
alternatives of eccentric bushings
SET-UP
BOOK
ECCENTRIC BUSHINGS HAVE TWO DIFFERENT OFFSETS FROM THE CENTER.
TOE-IN
ANTI-SQUAT
ROLL CENTER DOWNSTOP
WHEELBASE
TRACK WIDTH
Middle position = 0.5 mm or 0.5° from center
Outer position = 1mm or 1° from center
The XRAY rear alu lower suspension holders provide even greater range of adjustment for the rear suspension. Using different combinations of eccentric bushings, fine adjustment of rear anti-squat, rear
toe-in, rear roll center, and rear track-width can be obtained. For more information about the influence of rear anti-squat, rear toe-in, rear roll center and rear track width on car handling, please refer to
HUDY Off-Road Set-up Book (#209099).
RR
ANTI-SQUAT
RF
(°)
RR
ROLL CENTER
RF
(mm)
RR
TRACK-WIDTH
RF
(mm)
RR
TOE-IN
RF
(°)
=3°
=0mm
=308
=3°
=4°
=1mm
=306
=4°
=2°
=-1mm
=310
=2°
The tables describe the amounts of rear anti-squat, rear toe-in, rear track-width change depending
on the combinations of eccentric bushings used with 0 and 1mm, 1° off set. The 0.5mm, 0.5° represent
the half change.
Anti-Squat Example:
=2°
=4°
=3°
=5°
=3°
=1°
=2°
0(RR) - 0 (RF) = 3°
= 3°
=4°
=3°
0(RR) - 0.5 (RF) = 3.5°
= 3.5°
=5°
0(RR) - 1 (RF) = 4°
= 4°
=1°
=3°
13
3. REAR SUSPENSION
2x
L=R
DETAIL
1.5mm
6mm
901312
SB M3x12
Follow the TECH TIP on page 5 to install the pivot balls
L=R
901303
Step ➍ Detail
-2~0mm
SB M3x3
901305
SB M3x5
DETAIL
3x3mm ➍
➋
3x18mm
902318
➌
SH M3x18
➊
3x5mm
3x8mm
903308
SFH M3x8
REAR ANTI-ROLL BARS
SET-UP
BOOK
ANTI-ROLL BAR
#353422 ø2.2mm
OPTION
#353424 ø2.4mm
OPTION
#353426 ø2.6mm
OPTION
#353428 ø2.8mm
INCLUDED
#353430 ø3.0mm
OPTION
DETAIL
DETAIL
Step ➊
Loosen the 3x5 setscrew if
the anti-roll bar does not
turn freely
Step ➊ check for free movement
2x
902308
SH M3x8
mudguard
NOTE ORIENTATION
mudguard
NOTE ORIENTATION
14
4. REAR SUSPENSION
903312
353020
353521
353559
353521
902314
902310
960030
902320
351330
353160
902318
357331
960030
902318
902330
353170
353130
353353
353151
For stiffer wing mounting use
#353550 ALU WING MOUNT BRACE
960030
352634
353353
960030
355222
980317
353370
355250
OFFSET WHEEL AXLES
940816
#355250
901504
940814
BAG
35 1330
35 2634
35 3020
35 3130
35 3151
35 3160
35 3170
35 3353
35 3370
35 3521
35 3559
35 5222
35 5250
2x
353370
COMPOSITE REAR BODY POST - LONG
ADJ. TURNBUCKLE M5 L/R 50 MM - HUDY SPRING STEEL™ (2)
COMPOSITE REAR BRACE HOLDER
REAR UPPER INNER CAMBER LINK BALL JOINT (2)
RELIEF REAR UPPER OUTER CAMBER LINK BALL JOINT (2)
MOUNTING BALL 6.8 (4)
PIVOT BALL 6.8 (4)
XB8’16 COMPOSITE REAR UPRIGHT
SET OF COMPOSITE REAR HUB CARRIER SHIMS
REAR WING POSTS
COMPOSITE REAR WING MOUNT BRACE (2)
UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™
ALU WHEEL AXLE - BLACK COATED (2)
35 7331
90 1504
90 2310
90 2314
90 2318
90 2320
90 2330
90 3312
94 0814
94 0816
96 0030
98 0317
L=R
0mm
INCLUDED
#355251
+1mm OPTION
#355252
+2mm OPTION
XB808 REAR LOWER OUTER PIVOT PIN SCREW 3MM (2)
HEX SCREW SB M5x4 (10)
HEX SCREW SH M3x10 (10)
HEX SCREW SH M3x14 (10)
HEX SCREW SH M3x18 (10)
HEX SCREW SH M3x20 (10)
HEX SCREW SH M3x30 (10)
HEX SCREW SH M3x12 (10)
HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2)
HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2)
NUT M3 (10)
PIN 3x17 (10)
Follow the TECH TIP on page
5 for drive shaft pin servicing
940814
NOTE ORIENTATION
BB 8x14x4
8x16x5mm
➎
➋
➊
OFFSET WHEEL AXLES
#355250
0mm
#355251
+1mm
INCLUDED
OPTION
#355252
+2mm
OPTION
8x14x4mm
To tighten the setscrew you can also use the
HUDY 17mm Wheel Nut Tool #107570
940816
BB 8x16x5
➌
➏
901504 980317
SB M5x4
P 3x17
➍
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
m
2.5m
DETAIL
15
4. REAR SUSPENSION
2x
L=R
353370
SHIM 3x9x1
Ensure that the rear upright moves freely.
If it does not move freely, use sandpaper
to thin both wheelbase adjustment shims.
Shims for wheelbase
adjustment
DETAIL
1+1mm
353370
SHIM 3x9x2
2mm
INITIAL SETTING
960030
N M3
DETAIL
Do not overtighten the self-locking nut.
Overtightening may result in suspension binding.
ARM REAMER
(HUDY #107633)
Check for free
movement
If the rear upright does not move freely, use a HUDY Arm Reamer to resize the hole.
2x
NOTE ORIENTATION
L=R
Follow the TECH TIP on page 5
to install the pivot balls
NOTE ORIENTATION
Use tools to tighten as shown
DETAIL
Follow the TECH TIP on page 5
to install the pivot balls
OIL
OIL
RIGHT
THREAD
Special Tool for all turnbuckles & nuts (HUDY #181090)
or Turnbuckle Wrench 5mm (HUDY #181050)
LEFT
THREAD
27.7mm
SET-UP
BOOK
LEFT THREAD
27.7mm
RIGHT THREAD
RIGHT THREAD
LEFT THREAD
CAMBER
2x
L=R
353353
NOTE
ORIENTATION
SHIM 3x9x7
INITIAL SETTING
L=R
7mm
3x18mm
DETAIL
3x30mm
902318
SH M3x18
902330
SH M3x30
INITIAL SETTING
L=R
960030
N M3
16
DETAIL
4. REAR SUSPENSION
903312
SFH M3x12
2x
L=R
For stiffer wing mounting use
#353550 ALU WING MOUNT BRACE
902314
SH M3x14
960030
N M3
SET-UP
BOOK
F4 F3
R2 R1
F2 F1
INITIAL SETTING
L=R
REAR WING
R4 R3
DETAIL
3x18mm
902310
SH M3x10
3x18mm
902318
3x10mm
SH M3x18
3x20mm
902320
SH M3x20
17
5. FRONT SUSPENSION
FRONT ANTI-ROLL BARS
FR
909372
#352492 2.2mm
OPTION
#352493 2.3mm
OPTION
#352494 2.4mm
INCLUDED
#352495 2.5mm
OPTION
#352496 2.6mm
OPTION
352324
352314
901408
357212
353371
352314
FF
902318
352323
909395
352117
352494
901303
333450
901305
352470
903308
901312
352470
352460
BAG
18
33 3450
35 2006
35 2117
35 2323
35 2324
35 2314
35 2460
35 2470
35 2494
35 3371
ANTI-ROLL BAR BALL JOINT 5.8 MM (2)
XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR
XB8 COMPOSITE FRONT LOWER SUSPENSION ARM
ALU FRONT LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL-CENTER - V2
ALU FRONT LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL-CENTER - V2
COMPOSITE SQUARE ADJ. ROLL-CENTER BUSHINGS - V2 (2)
PIVOT BALL 5.8 (10)
BALL JOINT 5.8 (8)
FRONT ANTI-ROLL BAR 2.4MM
SET OF COMPOSITE LOWER ARM SHIMS
352006
35 7212
LOWER INNER PIVOT PIN F+R (2)
90 1303
90 1305
90 1312
90 1408
90 2318
90 3308
90 9372
90 9395
HEX SCREW SB M3x3 (10)
HEX SCREW SB M3x5 (10)
HEX SCREW SB M3x12 (10)
HEX SCREW SB M4x8 (10)
HEX SCREW SH M3x18 (10)
HEX SCREW SFH M3x8 (10))
SCREW PHILLIPS SS 3.5x22 (10)
SCREW PHILLIPS SS 3.5x45 (10)
5. FRONT SUSPENSION
FRONT ARM
DETAIL
353371
SHIM 4x10x2
DETAIL
DETAIL
L=R
Push the arm from both sides to create play
901408
Check for free movement
SB M4x8
➍
3.5x22mm
FR
➌
➊
909372
➋
SS 3.5x22
FR
1°
2mm
0.5°
➎
4x8mm
INITIAL SETTING
Use the shim from Bag 03
FF
➌
3.5x45mm
➊
➍
FF
DOWNSTOP SETTING
1°
L=R
0.5°
INITIAL SETTING
DETAIL
1.7mm
All possible mounting alternatives
of eccentric bushings
909395
SS 3.5x45
If the suspension arms do not move freely, use
a HUDY Arm Reamer resize the holes.
ARM REAMER
(HUDY #107634)
DETAIL
Eccentric bushings have two different offsets from the center.
Middle position = 0.5 mm or 0.5° from center
Outer position = 1mm or 1° from center
The XRAY alu front lower suspension holders provide even greater range of adjustment for the front suspension.
Using different combinations of eccentric bushings, fine adjustment of front kick-up, roll center, and front
track-width can be obtained. For more information about the influence of kick-up, front track-width, and roll
centers on car handling, please refer to HUDY Off-Road Set-up Book (#209099).
FF
TRACK-WIDTH
FR
(mm)
=308
SET-UP
BOOK
KICK UP
ROLL CENTER DOWNSTOP
WHEELBASE
TRACK WIDTH
FF
ROLL CENTER
FR
(mm)
=1
=306
=0
=310*
=-1
The tables below describe the amounts of kick-up, front track-width change depending on the combinations of
eccentric bushings used with 0 and 1mm, 1° off set. The 0.5mm, 0.5° represent the half change.
* Not recommended to use this setting.
19
5. FRONT SUSPENSION
2x
L=R
1.5mm
6mm
901312
SB M3x12
Follow the TECH TIP on page 5 to
install the pivot balls
L=R
901303
Step ➍ Detail
-2~0mm
SB M3x3
901305
SB M3x5
DETAIL
3x3mm
➍
902318
➋
SH M3x18
3x18mm
➌
903308
SFH M3x8
➊
3x5mm
3x8mm
DETAIL
Step ➊
Loosen the 3x5 setscrew if
the anti-roll bar does not
turn freely
DETAIL
FRONT ANTI-ROLL BARS
SET-UP
BOOK
ANTI-ROLL BAR
20
#352492 2.2mm
OPTION
#352493 2.3mm
OPTION
#352494 2.4mm
INCLUDED
#352495 2.5mm
OPTION
#352496 2.6mm
OPTION
Step ➊ check for free movement
6. FRONT SUSPENSION
352133
903312
357256
352370
357254
357251
Alu Black
355222
357252
940816
980317
357256
352241
357250
Steel Silver
901504
940814
355250
#357253
BRASS ADJUSTING NUT M15x1
35 2133
35 2241
35 2370
35 5222
35 5250
35 7250
35 7251
35 7252
35 7253
BAG
2x
XB8’16 FRONT UPPER ARM
XB8’16 STEERING BLOCK
XB8’16 ALU STEERING PLATE - SWISS 7075 T6 (L+R)
UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™
ALU WHEEL AXLE - BLACK COATED (2)
STEEL PIVOT BALL 13.7 MM (2)
ALU PIVOT BALL 13.7 MM WITH STEEL SCREW (2)
ALU ADJUSTING NUT M15x1 (2)
BRASS ADJUSTING NUT M15x1 (2) (OPTION)
OFFSET WHEEL AXLES
#355250
0mm
#355251
+1mm
OPTION
#355252
+2mm
OPTION
35 7254
35 7256
COMPOSITE BALL CUP 13.9 MM (2)
ALU SHIM 6x13x1 (2)
90 1504
90 3312
94 0814
94 0816
98 0317
HEX SCREW SB M5x4 (10)
HEX SCREW SFH M3x12 (10)
HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2)
HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2)
PIN 3x17 (10)
INCLUDED
Follow the TECH TIP on page
5 for drive shaft pin servicing
L=R
NOTE ORIENTATION
901504
SB M5x4
OIL
➊
8x16x5mm
940814
BB 8x14x4
OFFSET WHEEL AXLES
➋
➎
8x14x4mm
BB 8x16x5
➏
0mm
#355251
+1mm
INCLUDED
OPTION
#355252
+2mm
OPTION
To tighten the setscrew you can also use the
(HUDY 17mm Wheel Nut Tool #107570)
➌
940816
#355250
➍
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
903312
SFH M3x12
980317
P 3x17
m
2.5m
DETAIL
21
6. FRONT SUSPENSION
2x
L=R
ALU pivot ball
BLACK color
DETAIL
STEEL pivot ball
SILVER color
#357253 Brass Adjusting Nut M15x1
Tighten hex nuts using HUDY
tool #107581
2x
PIVOT BALLS MUST MOVE FREELY
During initial assembly, tighten each hex nut until the
pivot ball starts to bind, then loosen slightly. Verify that
the pivot balls move freely.
L=R
357256
For maximum performance in most track conditions we
always suggest to use this basic setting.
SHIM 6x13x1
1mm
Use only one from the middle positions
in the upper roll center bushing.
1mm
m
2.5m
1mm
Use only one from the inner positions
in the lower roll center bushing.
HUDY Tool Allen 2.5mm
SET-UP
BOOK
CAMBER
TRACK-WIDTH
2x
L=R
357256
SHIM 6x13x1
1mm
SET-UP
BOOK
ROLL-CENTER
22
m
2.5m
HUDY Tool Allen 2.5mm
L=R
6. FRONT & REAR ASSEMBLY
960030
902325
960040
353084
351200
351110
351200
#353280
XB8’16 GRAPHITE BRACES FOR REAR COMPOSITE BRACE - SET
960030
353280
903412
353280
903412
902312
BAG
35 1110
35 1200
35 3084
35 3280
XB8’16 ALU CHASSIS - SWISS 7075 T6 (3MM)
FRONT & REAR BUMPER - V2
XB8’16 COMPOSITE REAR BRACE - MEDIUM
XB8’16 GRAPHITE BRACES FOR REAR BRACE - SET (OPTION)
90 2325
90 3412
96 0030
96 0040
HEX SCREW SH M3x25 (10)
HEX SCREW SFH M4x12 (10)
NUT M3 (10)
NUT M4 (10)
903412
SFH M4x12
23
6. FRONT & REAR ASSEMBLY
#353280
GRAPHITE BRACE SET for extra stiffness adjustment.
M3
902325
SH M3x25
M4
NOTE
ORIENTATION
903412
SFH M4x12
960030
N M3
ALTERNATIVE 1
(INITIAL SETTING)
ALTERNATIVE 2
960040
N M4
REAR BRACE
POSITION ALTERNATIVESE
Your choice of alternative brace
position depends on the layout
of the electronics on the chassis.
903412
SFH M4x12
DETAIL
24
7. STEERING
353370
902310
351301
903310
903310
903306
303136
351348
940610
352084
352504
902310
960030
902312
352513
960040
352314
352576
903412
352381
902312
352513
357222
352050
902310
960030
352579
303122
352652
352314
352666
352381
357222
903320
902308
352381
352333
352664
352653
960030
303122
352652
352611
352513
352653
352666
352504
352504
903320
940610
970121
#352051
XB8 GRAPHITE FRONT SHOCK TOWER 4MM
352504
903410
BAG
30 3122
30 3136
35 1301
35 1348
35 2084
35 2050
35 2314
35 2333
35 2381
35 2504
35 2513
35 2576
35 2579
35 2611
35 2652
35 2653
35 2664
ALU SHIM 3x6x1.0MM (10)
ALU SHIM 3x7x1.0MM (10)
BODY POSTS
XB8’16 GRAPHITE UPPER PLATE
XB8’16 COMPOSITE FRONT BRACE
XB8 ALU FRONT SHOCK TOWER - CNC MACHINED 7075 T6 (4MM)
COMPOSITE SQUARE ADJ. ROLL-CENTER BUSHINGS - V2 (2)
XB8 ALU FRONT UPPER ARM HOLDER - SWISS 7075 T6 (6MM)
XB8 CASTER CLIPS (2)
XB8’16 SERVO SAVER COMPLETE SET
XB8 COMPOSITE SERVO SAVER
STEERING PLATE BUSHING (2)
XB8’16 ALU STEERING PLATE - SWISS 7075 T6
ADJ. TURNBUCKLE M4 L/R 52.5 MM - HUDY SPRING STEEL (2)
BALL STUD 6.8MM (4)
BALL STUD 6.8MM WITH BACKSTOP - M3 (2)
COMPOSITE STEERING BALL JOINT 6.8MM - V3 (2)
35 2666
35 3370
35 7222
COMPOSITE RELIEF STEERING BALL JOINT 6.8MM (2)
SET OF COMPOSITE REAR HUB CARRIER SHIMS
FRONT UPPER PIVOT PIN 4x45 (2)
90 2308
90 2310
90 2312
90 3306
90 3310
90 3320
90 3410
90 3412
94 0610
96 0030
96 0040
97 0121
HEX SCREW SH M3x8 (10)
HEX SCREW SH M3x10 (10)
HEX SCREW SH M3x12 (10)
HEX SCREW SFH M3x6 (10)
HEX SCREW SFH M3x10 (10)
HEX SCREW SFH M3x20 (10)
HEX SCREW SFH M4x10 (10)
HEX SCREW SFH M4x12 (10)
HIGH-SPEED BALL-BEARING 6x10x3 BLUE COVERED (2)
NUT M3 (10)
NUT M4 (10)
O-RING 12.1 x 1.6 (10)
25
7. STEERING
970121
DETAIL
O 12.1x1.6
INITIAL PRELOAD SETTING
4~5mm
DETAIL
SET-UP
BOOK
SERVO SAVER
STEERING
3.0mm
HUDY Tool Allen 3.0mm
902308
SH M3x8
DETAIL
For servicing use
Bearing Oil (HUDY #106230)
903410
SFH M4x10
940610
BB 6x10x3
26
NOTE ORIENTATION
7. STEERING
Apply CA glue to all countersunk holes & edges
of the upper plate.
Use the shim
from Bag
353370
All possible mounting
alternatives of eccentric bushings
SHIM 3x9x2
2mm
3x6mm
3x6mm
902310
SH M3x10
DETAIL
903306
SFH M3x6
3x10mm
1°
SET-UP
BOOK
0.5°
NOTE ORIENTATION
INITIAL SETTING
ROLL-CENTER
3x10mm
3x10mm
3x10mm
303136
SHIM 3x7x1
902310
3x7x1mm
M3
SH M3x10
3x7x1mm
M4
903310
SFH M3x10
NOTE
ORIENTATION
903412
SFH M4x12
960030
N M3
4x12mm
960040
N M4
NOTE
ORIENTATION
NOTE
ORIENTATION
Follow the TECH TIP on page 5
to install the pivot balls
LEFT THREAD
NOTE
ORIENTATION
NOTE
ORIENTATION
Use tools to tighten
as shown
RIGHT THREAD
RIGHT THREAD
DETAIL
NOTE
ORIENTATION
LEFT THREAD
NOTE
ORIENTATION
RIGHT THREAD
26.8 mm
LEFT THREAD
Special Tool for all turnbuckles & nuts:
(HUDY #181090)
or Turnbuckle Wrench 4mm:
(HUDY #181040)
LEFT THREAD
26.8 mm
RIGHT THREAD
27
7. STEERING
2.0mm
902312
SH M3x12
NOTE
ORIENTATION
1.0mm
1.0mm
INITIAL POSITION
1°
0.5°
#352051
XB8 GRAPHITE FRONT SHOCK TOWER 4MM
All possible mounting
alternatives of eccentric bushings
UPPER CLIP
Behind arm
CASTE
R
F=R
CASTER
UPPER CLIP LOWER SHIM (Behind arm)
(Behind arm)
2mm
0
SET-UP
BOOK
ROLL-CENTER
CASTER
2x
4mm
21º
18º
3mm
22.5º
19.5º
2mm
24º
21º
1mm
25.5º
22.5º
0
27º
24º
LOWER SHIM
Behind arm
INITIAL POSITION
L=R
303122
SHIM 3x6x1
NOTE ORIENTATION
Adjustment block towards outside
902310
SH M3x10
903320
SFH M3x20
1.0mm
960030
N M3
SET-UP
BOOK
ACKERMANN
BUMP STEER
TOE-IN
28
NOTE ORIENTATION
Adjustment block towards outside
Check for free
movement
Check for free
movement
8. CENTER DIFF & MOTOR
902305
Motor
(not included)
961032
358783
351159
908314
355712-17
(not included)
961032
908312
352290
902305
358784
902330
903308
903412
961032
354053
355012
(Center Diff)
354011
354011
351159
903412
XRAY PINION GEAR
#355712
12T
OPTION
#355713
13T
OPTION
#355714
14T
OPTION
#355715
15T
OPTION
#355716
16T
OPTION
#355717
17T
OPTION
BAG
35 1159
XB8’16 CHASSIS SIDE GUARDS L+R
35 2290
COMPOSITE BUSHING FOR ALU STEERING BLOCK (4)
35 4011
CENTER DIFF MOUNTING PLATE SET - HIGHER
35 4053
XB9E GRAPHITE CENTER DIFF MOUNTING PLATE
35 5012
CENTRAL DIFFERENTIAL - SET
35 5712~17 XB808E 12~17T PINION GEAR (OPTION)
35 8783
XB9E ALU MOTOR MOUNT PLATE - V2
35 8784
XB8E ALU MOTOR MOUNT - V2
90 2305
90 2330
90 3308
90 3412
90 8312
90 8314
96 1032
HEX SCREW SH M3x5 (10)
HEX SCREW SH M3x30 (10)
HEX SCREW SFH M3x8 (10)
HEX SCREW SFH M4x12 (10)
HEX SCREW SOCKET HEAD CAP M3x12 (10)
HEX SCREW SOCKET HEAD CAP M3x14 (10)
WASHER S 3.2 (10)
902305
SH M3x5
961032
S 3.2
29
8. CENTER DIFF & MOTOR
902305
SH M3x5
961032
S 3.2
NOTE ORIENTATION
NOTE ORIENTATION
902330
SH M3x30
903308
SFH M3x8
30
NOTE ORIENTATION
8. CENTER DIFF & MOTOR
903412
SFH M4x12
DETAIL
908312
M3
M4
M4
M3
SCH M3x12
XRAY PINION GEAR
Pinion
355712~17 (not included)
#355712
12T
OPTION
#355713
13T
OPTION
#355714
14T
OPTION
#355715
15T
OPTION
#355716
16T
OPTION
#355717
17T
OPTION
Gear mesh adjustment
908314
SCH M3x14
961032
S 3.2
Adjust gear mesh so there is minimal play between the gears.
TOO TIGHT gear mesh will put excessive strain on all parts and damage the parts.
TOO LOOSE gear mesh may result in stripped gears.
31
10. RADIO CASE
306310
Speed Controller
(not included)
Servo Screw
(not included)
902312
902308
Servo Grommet
(not included)
356200
907206
352460
Steering Servo
(not included)
LiPo Battery Pack
(not included)
902314
352670
902308
902312
336000
302610
352670
Receiver
(not included)
356118
960030
356120
960040
356194
356152
336000
960040
903412
356160
903410
HUDY ALU SERVO HORNS
#293501 23T KO Propo, Airtronics, Sanwa OPTION
#293502 24T Hitec
OPTION
#293503 25T Futaba
OPTION
BAG
10
30 2610
30 6310
33 6000
33 6060
35 2460
35 2670
35 6118
35 6120
35 6152
35 6160
35 6194
35 6200
903410
356152
ADJ. TURNBUCKLE L/R 40 MM - HUDY SPRING STEEL (2)
ANTENNA TUBE (2)
COMPOSITE RECEIVER CASE - V2
RECEIVER SWITCH - SET (OPTION)
PIVOT BALL 5.8 (10)
SERVO BALL JOINT 5.8MM (4)
XB9E GRAPHITE RECEIVER CASE TOP PLATE
STEERING SERVO MOUNT - SET
XB8E’16 COMPOSITE BATTERY PLATE
VELCRO BATTERY STRAP 20x300MM (2)
XB9E ALU MOUNT FOR RECEIVER BOX
BRAKE/THROTTLE ARMS & STEERING SERVO ARMS - SET
38 9135
CONNECTING CABLE RECEIVER/BATT. PACK (OPTION)
90 2308
90 2312
90 2314
90 3410
90 3412
90 7206
96 0030
96 0040
HEX SCREW SH M3x8 (10)
HEX SCREW SH M3x12 (10)
HEX SCREW SH M3x14 (10)
HEX SCREW SFH M4x10 (10)
HEX SCREW SFH M4x12 (10)
SCREW PHILLIPS 2x6 (10)
NUT M3 (10)
NUT M4 (10)
Follow the TECH TIP on page
5 to install the pivot balls
NOTE
ORIENTATION
LEFT
THREAD
902312
SH M3x12
RIGHT
THREAD
Use appropriate servo arm:
K - (23T)
RIGHT THREAD
approx. 24mm
HUDY ALU SERVO HORNS
LEFT THREAD
The length of the linkages varies according to the type of servo.
32
H - (24T)
#293501 23T KO Propo, Airtronics, Sanwa OPTION
#293502 24T Hitec
OPTION
#293503 25T Futaba
OPTION
F - (25T)
10. RADIO CASE
Servo Screw
(not included)
902312
SH M3x12
902308
SH M3x8
907206
2x6
Receiver
(not included)
Antenna
If the receiver box has 2 different-size openings
for cable entry (narrow and wider), cut away
the tab for the appropriate opening to allow the
cables to fit properly.
902308
SH M3x8
33
10. RADIO CASE
902314
SH M3x14
903412
SFH M4x12
960030
N M3
ALETRNATIVE 1
(INITIAL SETTING)
903410
ALETRNATIVE 2
Tie Strap
(not included)
Speed Controller
(not included)
Double-Sided Tape
(not included)
SFH M4x10
960040
N M4
Cut Battery Plate
View
Battery
(not included)
Velcro Battery Strap
Cut the foam as needed to fill in space between
the batteries and holder.
34
11. SHOCK ABSORBERS
PISTONS
10 holes/ø1.1mm
8 holes/ø1.2mm
8 holes/ø1.3mm
6 holes/ø1.2mm
6 holes/ø1.4mm
358041
358053
358042
6 holes/ø1.3mm
358042
DETAIL
960026
358040
358263
358084
358225
358032
358033
358162
970100
358019
358124
970180
971034
358074
358142
358335
358150
358020
358315
352460
FRONT LINEAR SPRINGS
#358182 C=0.65 White
SHORT OPTION
#358183 C=0.70 Grey
SHORT OPTION
#358184 C=0.75 Silver
SHORT OPTION
#358185 C=0.80 Grey-Blue SHORT OPTION
#358186 C=0.86 Blue
SHORT OPTION
#358187 C=0.92 Violet
SHORT OPTION
#358188 C=0.98 Purple
SHORT OPTION
REAR LINEAR SPRINGS
#358282 C=0.47 White
LONG
OPTION
#358283 C=0.50 Grey
LONG
OPTION
#358284 C=0.53 Silver
Grey
SHORT
#358274 C=0.5-0.6
Grey
MEDIUM OPTION
OPTION
#358275 C=0.65-0.7
1 STRIPE
MEDIUM OPTION
#358276 C=0.7-0.75
2 STRIPES MEDIUM OPTION
#358277 C=0.72-0.8
3 STRIPES MEDIUM OPTION
#358278 C=0.75-0.83 4 STRIPES MEDIUM OPTION
LONG
OPTION
#358285 C=0.57 Grey-Blue LONG
OPTION
#358286 C=0.61 Blue
LONG
OPTION
#358279 C=0.55-0.63 2 STRIPES LONG
OPTION
#358287 C=0.65 Violet
LONG
OPTION
#358280 C=0.6-0.68
3 STRIPES LONG
OPTION
#358288 C=0.70 Purple
LONG
OPTION
#358281 C=0.65-0.7
4 STRIPES LONG
OPTION
BAGS
11.1
FRONT & REAR PROGRESSIVE SPRINGS
#358174 C=0.7-0.8
35 2460
35 8019
35 8020
35 8032
35 8033
35 8040
35 8041
35 8042
35 8053
35 8054
35 8074
35 8084
REAR PROGRESSIVE SPRINGS
PIVOT BALL 5.8 - V3 (10)
COMPOSITE SET OF SHIMS FOR SHOCKS - V2 (2)
COMPOSITE SHOCK PARTS
SHOCK PISTON SET 8-HOLE (1.2; 1.3) 10-H. (1.1MM) - DELRIN - V2
COMPOSITE SHOCK 6-HOLE PISTON SET (1.2; 1.3; 1.4MM) - DELRIN - V2
HARDENED SHOCK SHIMS (4)
STEEL SHOCK BUSHING (2)
COMPOSITE SHOCK BUSHING & SHIM - V2 (2+2)
XB8 ALU SHOCK CAP NUT - BLACK COATED (2)
XB8 ALU SHOCK CAP NUT WITH VENT HOLE - BLACK COATED (2) (OPTION)
FOLDING SHOCK BOOT (4)
SHOCK RUBBER MEMBRANE BOTTOM RIBBED (4)
35 8124
35 8142
35 8150
35 8162
35 8225
35 8263
35 8315
35 8335
96 0026
97 0100
97 0180
97 1034
#358054
XB8 ALU SHOCK CAP NUT WITH
VENT HOLE - BLACK COATED (2)
XB8 ALU FRONT SHOCK BODY - HARD COATED (2)
ALU SHOCK BODY NUT FOR SHOCK BOOT (2)
ALU SHOCK BODY ADJ. NUT (2)
FRONT SHOCK SHAFT (2)
XB8’16 ALU REAR SHOCK BODY - HARD COATED (2)
XB8 REAR SHOCK SHAFT (2)
XRAY FRONT SPRING 69MM - 3 DOTS (2)
XRAY REAR SPRING 85MM - 3 DOTS
NUT M2.5 - SHORT (10)
O-RING 10 x 1.5 (10)
O-RING 18 x 1.8 (10)
SILICONE O-RING 3.5x2 (10)
35
11. SHOCK ABSORBERS
358040
S 2.5x6x0.5
960026
8 holes
ø1.2mm pistons
8 holes
ø1.2mm pistons
SHORT rod
DETAIL
DETAIL
INCORRECT
CORRECT
DO NOT OVERTIGHTEN
TIGHTEN GENTLY
The self-locking nut is overtightened,
causing distortion of the piston. This will
negatively affect the free movement of
the piston in the shock body.
The self-locking nut is gently tightened.
The piston remains undistorted and fits
inside the shock body perfectly, ensuring
smooth movement of the piston.
LONG rod
N M2.5
NOTE ORIENTATION
BAG
BAG
11.1
FRONT
SHOCK
REAR
SHOCK
DETAIL
Grip the shock rod at top of exposed
threads with side cutting pliers. Be
careful not to damage the shock rod.
SET-UP
BOOK
SHOCK DAMPING
SHOCK PISTONS
CORRECT
INCORRECT
INCORRECT
2x FRONT SHOCKS (SHORT)
2x REAR SHOCKS (LONG)
970100
O 10x1.5
Thick Shim
There are two different thickness shims, use
them as shown. Use the same procedure
when building both front and rear shocks.
O-ring
Thin Shim
DETAIL
O-ring
971034
O 3.4x2
2x
2x
FRONT SHOCKS
REAR SHOCKS
SHORT shock rod
SHORT shock body
EXTREMELY IMPORTANT
LONG shock rod
LONG shock body
INCORRECT
Do not push the shock rod straight
through the lower shock body
assembly; O-ring damage may result.
36
CORRECT
Twist the shock rod through the
lower shock body assembly.
11. SHOCK ABSORBERS
2x FRONT SHOCKS
2x REAR SHOCKS
DETAIL
970180
O 18x1.8
2x FRONT SHOCKS
DETAIL
2x REAR SHOCKS
1 mm
DETAIL
DETAIL
Grip the shock rod at top of exposed
threads with side cutting pliers. Be
careful not to damage the shock rod.
DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND)
FRONT (SHORT)
2x Oil 700cSt
Follow the steps below to set the shock rebound to the default setting of 0%.
SET-UP
BOOK
2x REAR (LONG)
Oil 500cSt
CORRECT
INCORRECT
INCORRECT
HALF TIGHTEN
50%
SHOCK OIL
TIGHTEN FULLY
100%
DETAIL
3~5x
UP & DOWN
➊
➋
➌
➍
➎
➏
➐
Extend the shock shaft
completely. Fill the shock
body with the shock oil.
For the FRONT shocks
(short) use 700cSt oil. For
the REAR shocks (long) use
500cSt oil.
Move the shock shaft up and
down a few times to release
the air bubbles trapped
beneath the piston.
Orient the filled shock
vertically for several
minutes with the shock
shaft fully extended. The
remaining air bubbles will
release.
Install the shock membrane
into the groove in the
upper shock cap.
Gently place the shock cap
assembly onto the filled
shock body. Excess oil will
spill from the shock. Screw
the shock cap onto the
body by only a few turns.
Gently push the shock shaft
completely into the shock
body. Excess oil will flow
through the hole in the
shock cap.
Keep the shock shaft
pushed in the shock body
and tighten the shock cap
completely.
The rebound will be at
approximately 0%.
37
11. SHOCK ABSORBERS
FRONT shock PRELOAD
DETAIL
2x REAR SHOCKS
2x FRONT SHOCKS
approx. 2mm
SHORT front shock
LONG rear shock
REAR shock PRELOAD
SHORT spring
LONG spring
IMPORTANT!
approx. 2mm
SET-UP
BOOK
SPRING RATE
SHOCK PRELOAD
RIDE HEIGHT
IMPORTANT!
Both front shocks
must be the same
overall length.
IMPORTANT!
Both rear shocks
must be the same
overall length.
FRONT & REAR SHOCKS
ALTERNATE SHOCK REBOUND SETTING (50% AND 100%)
The default shock rebound setting is 0% (as described on page 40).
Alternatively, you may set the shock rebound setting to 50% or 100% as described below. Remove the shock springs before performing shock rebound adjustment.
SETTING THE SHOCK REBOUND TO 50% (MEDIUM REBOUND)
HALF TIGHTEN
50%
REMOVE SHOCK CAP
TIGHTEN FULLY
100%
50%
50%
➊
➋
➌
➍
➎
➏
Extend the shock shaft completely
and remove the shock cap.
Fill the shock body with shock
oil up to the top. Make sure to
use same viscosity shock oil as
is in the shock.
Orient the filled shock
vertically for several minutes
with the shock shaft fully
extended. The remaining air
bubbles will release.
Gently place the shock cap
assembly onto the filled shock
body. Excess oil will spill from
the shock.
Push the shock shaft 50% into
the shock body. Excess oil will
bleed thgrough the hole in the
shock cap.
Keep the shock shaft pushed
50% into the shock body
and tighten the shock cap
completely.
The rebound will be at
approximately 50%.
SETTING THE SHOCK REBOUND TO 100% (HIGH REBOUND)
TIGHTEN FULLY
100%
REMOVE SHOCK CAP
100%
38
➊
➋
➌
➍
Extend the shock shaft completely and remove
the shock cap.
Fill the shock body with shock oil up to the top.
Make sure to use same viscosity shock oil as is
in the shock.
Orient the filled shock vertically for several
minutes with the shock shaft fully extended.
The remaining air bubbles will release.
Gently place the shock cap assembly onto the filled
shock body. Keep the shock shaft extended 100% from
the shock body and tighten the shock cap completely.
The rebound will be at approximately 100%.
12. FINAL ASSEMBLY
359710
903312
353511-K
353565
960030
359400
358047
960030
960030
Rear Shock
2x
4x
358206
4x
902318
4x
359809
(not included)
355261
Tires
(not included)
358047
960030
Inserts
(not included)
960030
355261
2x Front Shock
902319
358105
WHEEL NUTS
#355261
OPEN
INCLUDED
#293560
COVERED
OPTION
#355265
COVERED
XRAY STARBURST WHEELS
#359808 PINK
OPTION
OPTION
#359809 YELLOW OPTION
WING SHIMS
#353565
COMPOSITE INCLUDED
#293561
ALU
OPTION
#353511-K BLACK
INCLUDED
#293561-O ALU
OPTION
#353511
WHITE
OPTION
#353561
OPTION
#353511-Y
YELLOW
OPTION
BAG
12
WINGS
ALU
35 3511-K
35 3565
35 5261
35 8047
35 8105
35 8206
35 9400
35 9710
XB8 REAR WING - BLACK
COMPOSITE REAR WING SHIM - BLACK (2)
WHEEL NUT - RIBBED - HARD COATED (2)
STEEL SCREW SHOCK PIVOT BALL WITH HEX (2)
XB8 FRONT SHOCK ABSORBERS + BOOTS COMPLETE SET (2)
XB8’16 REAR SHOCK ABSORBERS + BOOTS COMPLETE SET (2)
BODY CLIP (10)
XRAY XB8’16 BODY
90 2318
90 2319
90 3312
96 0030
HEX SCREW SH M3x18 (10)
HEX SCREW SH M3x18 - LEFT THREAD (10)
HEX SCREW SFH M3x12 (10)
NUT M3 (10)
39
12. FINAL ASSEMBLY
FRONT SHOCKS (SHORT)
SHORTER
LONGER
2x
NOTE ORIENTATION
L=R
902318
SH M3x18
902319
SH M3x18
LEFT thread
Use STANDARD
M3x18 screw
960030
N M3
3x18mm
On the front right arm use the SILVER M3x18
screw - this screw has LEFT THREAD
DETAIL
L=R
INITIAL SETTING
DETAIL
SET-UP
BOOK
INITIAL SETTING
SHOCK ABSORBERS
L=R
REAR SHOCKS (LONG)
2x
NOTE ORIENTATION
SHORTER
LONGER
L=R
902318
M3x18
902319
SH M3x18
LEFT thread
Use STANDARD
M3x18 screw
960030
N M3
M3x18mm
On the rear left arm use the SILVER M3x18
screw - this screw has LEFT THREAD
DETAIL
INITIAL SETTING
L=R
DETAIL
SET-UP
BOOK
SHOCK ABSORBERS
40
INITIAL SETTING
L=R
12. FINAL ASSEMBLY
XRAY STARBURST WHEELS
NOTE
ORIENTATION
DETAIL
#359808 Pink
OPTION
#359809 Yellow OPTION
903312
SFH M3x12
960030
N M3
CA
To tighten the setscrew you can also use the
HUDY 17mm Wheel Nut Tool #107570
WING SHIMS
#353565
COMPOSITE INCLUDED
#293561
ALU
OPTION
#355261
OPEN
INCLUDED
#353511-K BLACK
INCLUDED
#293561-O ALU
OPTION
#293560
COVERED
OPTION
#353511
WHITE
OPTION
#353561
OPTION
#355265
COVERED
OPTION
#353511-Y
YELLOW
OPTION
ALU
➊ Before cutting and making holes on the body, put the unpainted body on the chassis to confirm the
mounting position and location for holes and cutouts.
➋ Before painting, wash the inside of the body with mild detergent, and then rinse and dry thoroughly.
➌ Mask all windows.
WINGS
WHEEL NUTS
➎ Paint the body using paints formulated for polycarbonate bodies.
➏ When the paint is dry, remove the masking.
➐ Carefully cut out the body using appropriate scissors or cutting tools.
➑ When you have finished cutting, peel off the external protective films.
➍ Apply paint masks as appropriate.
DETAIL
Body Reamer (HUDY #107600)
Ensure to make this rear body
mount hole oval so in the case of
chassis flex after a big jump the
body mount will not tear up the
hole.
To reinforce the body or to fix broken
body use #106280 HUDY BODY FIX
41
MAINTENANCE
SHOCK MAINTENANCE
The most important maintenance task for keeping consistent shock performance is refilling and bleeding them correctly. If built correctly, it will not be necessary
to re-build them often. Replacing warped/hard rubber bladders and o-rings, scarred piston rods, or shaved/split/loose composite upper and lower ball joints are also important.
• For club racing, it is recommended to check the shocks for air inside before each race
and only re-fill and bleed them if necessary. Before each race day, make sure you take
the spring off of each shock, hold it up to your ear, and quickly compress the shock rod
fully into the body while listening for any air making a “whistling” or “squishy” sound as
it passes through the piston holes. If you hear any air, refill and bleed your shocks. For
high-competition racing, it is recommended that the shocks be re-filled and bled before a
large event.
• If building or pairing new shocks, always make sure they are the same length using a
shock length measuring tool and adjust the lower ball joints as needed.
• If installing new rubber bladders, carefully trim the thin excess rubber from the edges of
their lips. Curved body scissors work the best.
• Regularly inspect the amount of dirt on the felt protector in the shocks (if present) and
regularly replace with a new one.
• During regular shock operation, oil naturally gets on the shock shaft and drop-by-drop
slightly gets out of the shock body. Shocks should be inspected regularly after each race,
and oil replaced as required.
BEARING MAINTENANCE
Ball-bearings in an off-road car or truggy must be properly maintained for smooth operation and long lifespan.
Typically, the ball-bearings included in new cars are greased for highest lifespan and as such the drivetrain may not seem to be as free as with lightly-oiled ball-bearings. However, when the
car is run the ball-bearings will become more free and the drivetrain will become very efficient.
There are several types of bearings discussed here: bearings which already come greased from the factory, bearings which must be lubricated using the HUDY Bearing Grease, and then
there are also bearings in the steering system which need to be lubricated with HUDY Bearing Oil.
The following procedures are recommended to clean all of the bearings in your off-road car or truggy. For high-competition racing, we recommended doing this every 3-4 weeks, or before a
major race.
1. Remove the seals on both sides of the bearing (if present). If the seals bend a little and
you can see a kink, carefully flatten the kink out by hand.
2. Spray the seals with motor cleaner and blow dry with compressed air.
3. Spray the bearing on both sides with motor cleaner.
4. Spin the bearing while it is still wet to dislodge any particles with the cleaner.
5. Spray the bearing on both sides again.
6. Blow both sides of the bearing dry with compressed air to make sure particles come out.
7. Hold the inner part of the bearing with my left thumb/forefinger and spin it to make sure
it spins free without any abnormal vibrations or sounds.
8. Place one drop of bearing oil into each side of the bearing.
9. Replace both seals at the same time by lining them up on each side of the bearing and
lightly pressing them in all the way around the bearings circumference with your thumb
and forefinger. Do not press too hard or use any type of tool, such as a wrench tip, to push
the blue seals in as they will push in too far, bend and cause drag.
If you spin test the bearing after you have re-oiled and sealed it, it will not spin freely for an extended period of time. The lightest of oils may allow it to spin for 1-2 seconds. This is normal
and once you have mounted the bearings in the car again, the drive train will spin freely.
Make sure you use a motor cleaner that does not leave a residue after it dries as this may cause drag and wear in the bearings.
HUDY #106230
RECOMMENDED PRODUCTS
• Use HUDY Bearing Grease to regularly lubricate grease-bearing ball-bearings.
• Use HUDY Bearing Oil to lubricate the bearings of the steering system.
HUDY
#106220
HUDY
#106222
HUDY
#106221
SUSPENSION & DRIVETRAIN MAINTENANCE
• Check suspension for free movement during building and operation, and especially after
running and if you have crashed the car. If the suspension does not move freely, use the
appropriate HUDY Arm Reamer to clean and resize the holes of the suspension arms.
• Regularly check the drive shaft pins (both side and center) and if they show any wear
must be immediately replaced by new pins. If the car is run with worn pins, excessive
wear on the diff outdrives will result. The 106000 HUDY Drive Pin Replacement Tool (for
3mm Pins) is a compact, rugged multi-use tool set for replacing 3mm drive pins in drive
shafts. Use the HUDY replacement drive shaft pins 3x14 (#106050).
• Regularly inspect and replace the connecting pins which connect the center drive shafts
with the pinion gear, and also the pins that connect the wheel drive shafts with wheel
axles. Use HUDY Graphite Grease to lubricate the drive shaft connecting joints and the
diff gears.
• Pivot balls and ball-joints will naturally wear for some time and will generate play. If
there is too much play the pivot balls and ball joints need to be replaced.
• If the car is run in wet conditions, apply WD-40® on all drivetrain parts before the run.
After the run, clean and dry the parts again.
HUDY #106210
HUDY SPRING STEEL™
The HUDY Spring Steel™ used in the car is the strongest and most durable steel material on the RC market. While items made from HUDY Spring Steel™ are still subject to wear, the
lifespan is considerably longer than any other material. As parts made from HUDY Spring Steel™ wear, the brown color will after some time “go down” but it will not affect the strength of
the material. The brown color is only a surface treatment and if the brown color will wear the durability of the part will be still strong.
42
TROUBLESHOOTING GUIDE
PROBLEM
CAR IS HARD TO
CONTROL
CAUSE
• Weak transmitter and/or receiver batteries
• Recharge or replace batteries
• Low reception from radio antennas
• Fully extend transmitter and receiver antennas
• Servo linkages not adjusted properly
• Move servo to neutral then re-adjust linkage(s)
• Weak transmitter and/or receiver batteries
STEERING DOES NOT
WORK PROPERLY
• Bent linkages or driveshafts
• Loose steering components
• Drivetrain damage
HANDLING PROBLEMS
STEERING FEELS
SLUGGISH OR VAGUE
THE CAR DOES NOT
DRIVE STRAIGHT
SOLUTION
• Recharge or replace batteries
• Check tightness of steering components and tighten if necessary
• Replace damaged parts
• Shocks are not working properly
• Rebuild the shocks and replace worn or broken parts
• Suspension is binding
• Make sure suspension moves freely. Replace worn or broken parts
• Improper tires
• Use different tires
• Suspension is binding
• Make sure suspension moves freely, and replace worn or broken parts
• Damaged steering servo
• Check the steering servo for damage and wear, and replace/repair if necessary
• Suspension is binding
• Make sure suspension moves freely, and replace worn or broken parts
• Steering trim is off-center
• Adjust steering trim until car drives straight
• Wheels are loose
• Check the make sure the wheel nuts are properly tightened
• Damaged steering servo
• Check the steering servo for damage and wear, and replace/repair if necessary
43
RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA
PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.com
/TeamXray
/TeamXray
/TeamXray
/XrayRacing
/+TeamXrayRC
/XrayRacing
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