Xray XB8E (2017), XB8 (2017) Instruction Manual

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CUSTOMER SUPPORT

XRAY Europe

K Výstavisku 6992 91101 Trenčín Slovakia, EUROPE Phone: +421-32-7401100 Fax: +421-32-7401109 Email: 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

RC America, 2030 Century Center Blvd #15 Irving, TX 75062 USA Phone: (214) 744-2400 Fax: (214) 744-2401 Email: xray@rcamerica.com

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

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.

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.

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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.

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.

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.

Page 4

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.

SYMBOLS USED

L=R

OIL

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 instant

glue

Cut off shaded

portion

Cut off

remaining

material

Tighten screw

gently

TOOLS REQUIRED

EQUIPMENT REQUIRED

TOOLS & EQUIPMENT INCLUDED NOT INCLUDED

Assemble front

and rear the same

way

Apply oil

Use special

tool

Silicone Shock Oil (HUDY #106356 550cSt 100ml) (HUDY #106371 700cSt 100ml)

Silicone Diff Oil (HUDY #106431 3000cSt 100ml) (HUDY #106451 5000cSt 100ml) (HUDY #106471 7000cSt 100ml)

Special Tool for all turnbuckles,

nuts (HUDY #181090)

Turnbuckle Wrench (HUDY #181040 4mm) (HUDY #181050 5mm)

Phillips 5.0mm

(HUDY TOOLS)

Socket 5.0 / 5.5mm

(HUDY TOOLS)

Allen 1.5 / 2.0 / 2.5 / 3.0mm

(HUDY TOOLS)

17mm Wheel Nut Tool

(HUDY #107570)

Side Cutters

(HUDY #189010)

Body Reamer

(HUDY #107600)

(HUDY #107601)

Cross Wrench

(HUDY #107581)

Scissors

(HUDY #188990)

Needle Nose Pliers (HUDY #189020)

Snap Ring Pliers

(HUDY #189040)

➊ ➋ ➌

Apply grease Apply

threadlock

Ensure smooth

non-binding

movement

Use pliers Follow tip here

Arm Reamer 3mm/4mm

(HUDY TOOLS)

Graphite Grease

(HUDY #106210)

Follow Set-up

Book

Use cleaner

or WD-40®

Time

Ball Allen 2.5mm

(HUDY TOOLS)

BOOK

SET-UP

BOOK

SET-UP

Pocket Hobby Knife

(HUDY #188981)

Transmitter Battery ChargerElectric Motor Speed Controller LiPo Battery

Tires & Wheels

Receiver

Lexan™ Paint

CA Glue

Transmitter Batteries

Pinion Gear

ThreadlockSteering Servo

Page 5

XB8E TECH TIPS

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.

FRONT & REAR DIFF GEAR MESH ADJUSTMENT

THE LOCATION OF THE SHIM(S) DEPENDS ON WHETHER YOU ARE TRYING TO CLOSE OR OPEN THE GAP:

TO CLOSE A WIDE GAP

TO OPEN A NARROW GAP

TIP

insert shim(s) here

TIP

Tighten screw until pivot ball is tight against block.

Lift ball joint until it snaps into place over pivot ball. Ball joint should move freely.

The finished joint. Loosen and remove screw.

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.

DRIVE SHAFT PIN SERVICING

TIP

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.

For easy drive pin replacements use #106000 HUDY Drive Pin Replacement Tool.

To replace the worn pins use only premium HUDY drive pins #106050.

Do not use drive shafts when the pins are worn.

Press out the worn pins.

Press in new pins and regularly inspect for wear.

To CLOSE a wide gap: add 1 or 2 shims against diff spur gear

To OPEN a narrow gap: add 1 or 2 shims on the other side of the diff, away from spur gear

TO OPEN A NARROW GAP

TO CLOSE A WIDE GAP

#962130 S 13 x 16 x 0.2 mm (10)

#962131 S 13 x 16 x 0.1 mm (10)

WASHER

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.

Page 6

DIFFERENTIAL GEARS

1. FRONT & REAR DIFFERENTIALS

F=R

STEP DETAIL

➊

➋

➌

➍

➎

➎➏

➏

35 5004 XB8 FRONT DIFFERENTIAL 46T - V2 - SET 35 5005 XB8 REAR DIFFERENTIAL 46T - V2 - SET 35 5022 DIFFERENTIAL CASE - V2 35 5031 STEEL DIFF BEVEL & SATELLITE GEARS - V2 (2+4) 35 5046 FRONT/REAR DIFF LARGE BEVEL GEAR 46T - HUDY STEEL

35 5064 FRONT DIFF OUTDRIVE ADAPTER LONG - V2 - HUDY SPRING STEEL™ (2) 35 5065 REAR DIFF OUTDRIVE ADAPTER - V2 - HUDY SPRING STEEL™ (2) 35 5084 F/R DIFF PIN (2)

35 5091 F/R DIFF GASKET (4)

90 3312 HEX SCREW SFH M3x12 (10) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2) 96 4030 WASHER S 3.5x12x0.2 (10) 96 4060 WASHER S 6x18x0.2 (10) 97 1060 SILICONE O-RING 6x1.5 (10) 98 0261 PIN 2.5x11.5 (10)

BAG

940816

903312

355046

964060

355031

971060

355022

940816

355091

964030

980261

971060

355084

355064 FRONT

REAR

FRONT

355064 FRONT

355065 REAR

940816

BB 8x16x5

964060

S 6x18x0.2

971060

O 6x1.5

980261

P 2.5x11.5

Graphite Grease

(HUDY #106210)

Graphite Grease (HUDY #106210)

Graphite Grease

(HUDY #106210)

➏

• High-performance adjustable front Active Differential™ for improved speed & handling

• Fully adjustable on- and off-power performance using different internal segments and gears

• Improved diff action and traction

• Easy and consistent steering

#355105 ACTIVE FRONT DIFF

#355003 XB8 FRONT/REAR DIFFERENTIAL 46T - V1 - SET

DETAIL

BOOK

SET-UP

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

IMPORTANT! Use the same diff outdrives on both ends of a diff.

Page 7

DIFFERENTIAL OIL

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.

32.3~32.5 mm

1. FRONT & REAR DIFFERENTIALS

964030

S 3.5x12x0.2

903312

SFH M3x12

➊

➋

➌

➍

➎

➏

➊

➋

➌

➍

940816

BB 8x16x5

964060

S 6x18x0.2

971060

O 6x1.5

980261

P 2.5x11.5

Rear diff:

Silicone oil 3 000cSt Fill just above the satellite gears.

Rear diff 3 000cSt

Front diff 5 000cSt

Front diff:

Silicone oil 5 000cSt Fill just above the satellite gears.

Graphite Grease

(HUDY #106210)

Graphite Grease (HUDY #106210)

Graphite Grease

(HUDY #106210)

F=R

REAR

FRONT

Tighten the screws equally

Finish tightening in this order

➎

STEP DETAIL

DETAIL

BOOK

SET-UP

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

IMPORTANT! Use the same diff outdrives on both ends of a diff.

OIL OIL

Fill the differentials

with oil just above the

satellite gears.

IMPORTANT!

VERY IMPORTANT!

OIL

INCORRECT

CORRECT

Do not overﬁll the differential. If there is too much oil in the differential, it may leak after it cools down after use.

Use the following silicone oils included in the kit for initial settings:

FRONT diff: 5 000cSt / REAR diff: 3 000cSt

#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g

To ensure you have the same amount of oil from rebuild to rebuild, do the following:

1. Put the diff (without oil) on the scale and check the weight:

- REAR DIFF approx. 39.30g

- FRONT DIFF approx. 40.10g

2. Slowly pour oil into the diff and watch the weight. Add 2.70g of oil into the diff. The approximate weight of the diff+oil is REAR DIFF approx. 42.00g and FRONT DIFF approx. 42.80g

FRONT

REAR

39.30g + 2.70g = 42.00g

40.10g + 2.70g = 42.80g

OIL

FRONT DIFF

REAR DIFF

39.30

40.10

42.00

42.80

Page 8

DIFFERENTIAL GEARS

355072

940816

903312

355050

971060

355031

964030

971060

355022

940816

964060

964030

355031

980261

355084

355072

355091

• High-performance adjustable center Active Differential™ for improved speed & handling

• Fully adjustable on- and off-power performance using different internal segments and gears

• Increased forward traction and stability

• Easy and consistent steering

#355106 ACTIVE CENTER DIFF

1. CENTER DIFFERENTIAL

BAG

➊

➋

➌

➍

➎

➏

35 5022 DIFFERENTIAL CASE - V2 35 5031 STEEL DIFF BEVEL & SATELLITE GEARS - V2 (2+4) 35 5050 CENTER DIFF SPUR GEAR 46T 35 5072 LARGE CENTER DIFF OUTDRIVE ADAPTER - HUDY STEEL (2) 35 5084 DIFF PIN (2) 35 5091 DIFF GASKET (2)

940816

BB 8x16x5

971060

O 6x1.5

964060

S 6x18x0.2

Graphite Grease

(HUDY #106210)

Graphite Grease

(HUDY #106210)

STEP DETAIL

➎

➏

➏➎

DETAIL

BOOK

SET-UP

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

#355012 or #355013 CENTER DIFFERENTIAL - SET

980261

P 2.5x11.5

CENTER DIFF SPUR GEAR

#355048 48T OPTION #355049 47T OPTION #355050 46T INCLUDED #355051 45T OPTION #355052 44T OPTION

* CENTER DIFF SPUR GEAR - LARGE

#355056 46T OPTION #355057 47T OPTION #355058 48T OPTION

* must be used with #355013 CENTRAL DIFFERENTIAL - LARGE - SET

CENTER DIFF SPUR GEAR

#355048 48T OPTION #355049 47T OPTION #355050 46T INCLUDED #355051 45T OPTION #355052 44T OPTION

* CENTER DIFF SPUR GEAR - LARGE

#355056 46T OPTION #355057 47T OPTION #355058 48T OPTION

* must be used with #355013 CENTRAL DIFFERENTIAL - LARGE - SET

Page 9

DIFFERENTIAL OIL

971060

O 6x1.5

964060

S 6x18x0.2

940816

BB 8x16x5

➊

➋

➍

➎

➏

➌

Graphite Grease (HUDY #106210)

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

32.3~32.5 mm

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.

1. CENTER DIFFERENTIAL

964030

S 3.5x12x0.2

903312

SFH M3x12

Tighten the screws equally Finish tightening in this order

➊

➋

➌

➍

Use the following silicone oil included in the kit for initial setting:

Center diff: 7 000cSt

BOOK

SET-UP

Fill the differentials

with oil just above the

satellite gears.

IMPORTANT!

VERY IMPORTANT!

OIL

INCORRECT

CORRECT

Do not overﬁll the differential. If there is too much oil in the differential, it may leak after it cools down after use.

980261

P 2.5x11.5

#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g

1. Put the diff (without oil) on the scale and check the weight (approximately 39g).

2. Slowly pour oil into the diff and watch the weight. Add 2.70g of oil into the diff. The approximate weight of the diff+oil is 41.70g.

To ensure you have the same amount of oil from rebuild to rebuild, do the following:

OIL

39.00g + 2.70g = 41.70g

CENTER DIFF

Center diff 7 000cSt

41.70

39.00

➎

STEP DETAIL

DETAIL

OIL

Center diff:

Silicone oil 7 000cSt

Fill to just above the satellite gears.

Page 10

2. FRONT TRANSMISSION

940816

BB 8x16x5

902312

SH M3x12

980314

P 3x14

901404

SB M4x4

Graphite Grease

(HUDY #106210)

Apply oil from inside to prevent breakage of the rubber boot.

SHORT CVD DRIVE SHAFT

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.

DETAIL

Cut on both front

and rear bulkhead blocks

DETAIL

➊

➋

➌

➍

STEP DETAIL

➍

STEP

DETAIL

➎

355004 FRONT DIFF

902312

35 2006 XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 5004 XB8 FRONT DIFFERENTIAL 46T - V2 - SET 35 5114 BEVEL DRIVE GEAR 14T 35 5236 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 35 5416 CENTRAL CVD SHAFT UNIVERSAL JOINT - HUDY SPRING STEEL™ 35 5427 FRONT CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™ 35 5471 DRIVE SHAFT LOCKING RING (2)

35 5472 DRIVE SHAFT BOOT (2)

90 1404 HEX SCREW SB M4x4 (10) 90 2312 HEX SCREW SH M3x12 (10) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 RUBBER SEALED (2) 98 0314 PIN 3x14 (10)

BAG

➎

SHORT

FRONT DIFF 5 000 cSt

Graphite Grease

(HUDY #106210)

Push joint against gear to remove gap. Tighten setscrew onto gear flat spot.

The ring can be assembled by hand, but for easy disassembly we recommend using snap ring pliers (HUDY #189040)

355472

355471

355427

355236

355416

352006

355114

352006

980314

901404

940816

step 1 step 2

step 3

OIL

DETAIL

#355426 FRONT UNIVERSAL CENTRAL DRIVE SHAFT - HUDY SPRING STEEL™ - SET

Follow the TECH TIP on page 5 for drive shaft pin servicing

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

NOTE

ORIENTATION

Page 11

2. REAR TRANSMISSION

940816

BB 8x16x5

902312

SH M3x12

980314

P 3x14

901404

SB M4x4

Apply oil from inside to prevent breakage of the rubber boot.

Graphite Grease

(HUDY #106210)

NOTE

ORIENTATION

LONG CVD DRIVE SHAFT

Cut on both front and rear bulkhead blocks

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.

Follow the TECH TIP on page 5 for drive shaft pin servicing.

DETAIL

BAG

➊

➋

➌

➍

STEP DETAIL

➎

355005 REAR DIFF

902312

35 2006 XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 5005 XB8 REAR DIFFERENTIAL 46T - V2 - SET 35 3050 XB8 ALU REAR SHOCK TOWER - CNC MACHINED 7075 T6 (4MM) 35 5114 BEVEL DRIVE GEAR 14T 35 5236 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 35 5416 CENTRAL CVD SHAFT UNIVERSAL JOINT - HUDY SPRING STEEL™ 35 5625 REAR CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™

➎

LONG

Graphite Grease

(HUDY #106210)

NOTE ORIENTATION

REAR DIFF 3 000 cSt

The ring can be assembled by hand, but for easy disassembly we recommend using snap ring pliers (HUDY #189040)

Push joint against gear to remove gap. Tighten setscrew onto gear flat spot.

902312

355472

355471

355625

355236

355416

352006

355114

352006

353050

980314

901404

940816

STEP DETAIL

➍

step 1 step 2

step 3

OIL

35 5471 DRIVE SHAFT LOCKING RING (2) 35 5472 DRIVE SHAFT BOOT (2)

90 1404 HEX SCREW SB M4x4 (10) 90 2312 HEX SCREW SH M3x12 (10) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 RUBBER SEALED (2) 98 0314 PIN 3x14 (10)

#353052 XB8 GRAPHITE REAR SHOCK TOWER 3.5MM

#355626 REAR UNIVERSAL CENTRAL DRIVE SHAFT - HUDY SPRING STEEL™ - SET

#353052 XB8 GRAPHITE REAR SHOCK TOWER 3.5MM

step 4

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

Page 12

BAG

3. REAR SUSPENSION

909395

353428

353327

352314

353371

352006

909372

353316

352314

357212

902318

353115

903308

901305

901303

333450

352470

901312

352470

353115

352460

33 3450 ANTI-ROLL BAR BALL JOINT 5.8 MM (2) 35 2006 XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 2314 COMPOSITE ECCENTRIC BUSHINGS - V2 (2) 35 2460 PIVOT BALL 5.8 (10) 35 2470 BALL JOINT 5.8 (8) 35 3115 COMPOSITE REAR LOWER SUSPENSION ARM 35 3316 ALU REAR LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL CENTER 35 3327 ALU REAR LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL CENTER 35 3371 SET OF COMPOSITE LOWER ARM SHIMS 35 3428 REAR ANTI-ROLL BAR 2.8MM 35 7212 LOWER INNER PIVOT PIN F+R (2)

901408

90 1303 HEX SCREW SB M3x3 (10) 90 1305 HEX SCREW SB M3x5 (10) 90 1312 HEX SCREW SB M3x12 (10) 90 1408 HEX SCREW SB M4x8 (10) 90 2318 HEX SCREW SH M3x18 (10) 90 3308 HEX SCREW SFH M3x8 (10)) 90 9372 SCREW PHILLIPS SS 3.5x22 (10) 90 9395 SCREW PHILLIPS SS 3.5x45 (10)

REAR ANTI-ROLL BARS

#353418 ø1.8mm OPTION #353420 ø2.0mm OPTION #353422 ø2.2mm OPTION #353424 ø2.4mm OPTION #353425 ø2.5mm OPTION #353426 ø2.6mm OPTION #353428 ø2.8mm INCLUDED #353430 ø3.0mm OPTION

#353113 XB8’16 COMPOSITE REAR LOWER SUSPENSION ARM - RIGHT #353123 XB8’16 COMPOSITE REAR LOWER SUSPENSION ARM - LEFT #353317 XB8 ALU REAR LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL CENTER #353325 XB8 ALU REAR LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL CENTER

#353116 COMPOSITE REAR LOWER SUSPENSION ARM - HARD

#333451 ALU ANTI-ROLL BAR PIVOT BALL 5.8 MM - SWISS 7075 T6 - HARDCOATED (2)

#902407 HEX SCREW SH M4x7 WITH HEX FROM BOTTOM (4)

Page 13

TOE-IN

ANTI-SQUAT

ROLL CENTER DOWNSTOP

WHEELBASE

TRACK WIDTH

3. REAR SUSPENSION

909395

SS 3.5x45

909372

SS 3.5x22

901408

SB M4x8

353371

SHIM 4x10x2

Check for free movement

REAR ARM ORIENTATION

(HUDY #107634)

ARM REAMER

If the suspension arm does not move freely use a HUDY Arm Reamer to resize the holes of the arms.

➊

➋

➌

➍

➎

2mm

4x8mm

All possible mounting

alternatives of eccentric bushings

Push the arm from both sides to create play

INITIAL SETTING

0.5°

1°

INITIAL SETTING

0.5°

1°

DETAIL DETAIL DETAIL

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 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).

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° offset. The 0.5mm, 0.5° represents the half change.

Anti-Squat Example:

0(RR) - 0 (RF) = 3°

0(RR) - 0.5 (RF) = 3.5°

0(RR) - 1 (RF) = 4°

ANTI-SQUAT ROLL CENTER TRACK-WIDTH TOE-IN

RR RR RR RRRF RF RF RF(°) (mm) (mm) (°)

=3°

=4°

=2°

=4°

=3°

=5°

=2°

=3°

=1°

= 3°

= 3.5°

= 4°

=1mm

=-1mm

=308

=306

=310

=3°

=4°

=2°

=3°

=1°

=4°

=5°

=3°

3.5x45mm

3.5x22mm

BOOK

SET-UP

NOTE ORIENTATION

3.0mm

DOWNSTOP SETTING

DETAIL

2.0mm Allen

#902407

Downstop screw for ﬁne tuning.

Page 14

3. REAR SUSPENSION

ANTI-ROLL BAR

901303

SB M3x3

901305

SB M3x5

901312

SB M3x12

902318

SH M3x18

903308

SFH M3x8

REAR ANTI-ROLL BARS

#353418 ø1.8mm OPTION #353420 ø2.0mm OPTION #353422 ø2.2mm OPTION #353424 ø2.4mm OPTION #353425 ø2.5mm OPTION #353426 ø2.6mm OPTION #353428 ø2.8mm INCLUDED #353430 ø3.0mm OPTION

1.5mm

6mm

DETAIL

-2~0mm

L=R

STEP DETAIL

➍

DETAIL

Loosen the 3x5 setscrew if the anti-roll bar does not turn freely

Step

➊

DETAIL

Step check for free movement

➊

DETAIL

INITIAL SETTING

DETAIL

L=R

Follow the TECH TIP on page 5 to install the pivot balls

➋

➊

➌

3x5mm

3x8mm

3x3mm

3x18mm

BOOK

SET-UP

Page 15

980317

P 3x17

901504

SB M5x4

940814

BB 8x14x4

940816

BB 8x16x5

➊

➋

➌

➏

➍

➎

8x14x4mm

8x16x5mm

Follow the TECH TIP on page 5 for drive shaft pin servicing

To tighten the setscrew you can also use the HUDY 17mm Wheel Nut Tool #107570

2.5mm

DETAIL

4. REAR SUSPENSION

35 1330 COMPOSITE REAR BODY POST - LONG 35 2634 ADJ. TURNBUCKLE M5 L/R 50 MM - HUDY SPRING STEEL™ (2) 35 3020 COMPOSITE REAR BRACE HOLDER 35 3130 REAR UPPER INNER CAMBER LINK BALL JOINT (2) 35 3151 RELIEF REAR UPPER OUTER CAMBER LINK BALL JOINT (2) 35 3160 MOUNTING BALL 6.8 (4) 35 3170 PIVOT BALL 6.8 (4) 35 3353 XB8’16 COMPOSITE REAR UPRIGHT 35 3370 SET OF COMPOSITE REAR HUB CARRIER SHIMS 35 3521 REAR WING POSTS 35 3559 COMPOSITE REAR WING MOUNT BRACE (2) 35 5222 UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™ 35 5250 ALU WHEEL AXLE - BLACK COATED (2)

BAG

L=R

35 7331 XB808 REAR LOWER OUTER PIVOT PIN SCREW 3MM (2)

90 1504 HEX SCREW SB M5x4 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 2314 HEX SCREW SH M3x14 (10) 90 2318 HEX SCREW SH M3x18 (10) 90 2320 HEX SCREW SH M3x20 (10) 90 2330 HEX SCREW SH M3x30 (10) 90 3312 HEX SCREW SH M3x12 (10) 94 0814 HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2) 96 0030 NUT M3 (10) 98 0317 PIN 3x17 (10)

902314

902320

353170

902330

353353

353151

902318

352634

353160

353020

903312

960030

353130

355222

980317

353370

901504

940814

940816

357331

902310

960030

902318

960030

353521

353559

353521

353353

355250

353370

351330

OFFSET WHEEL AXLES

#355250 0mm INCLUDED #355251 +1mm OPTION #355252 +2mm OPTION

OFFSET WHEEL AXLES

#355250 0mm INCLUDED #355251 +1mm OPTION #355252 +2mm OPTION

For stiffer wing mounting use #353550 ALU WING MOUNT BRACE

NOTE ORIENTATION

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

CVD DRIVE SHAFT

355211

355221

355237

980263

CVD DRIVE SHAFT

355211

355221

355237

980263

Page 16

4. REAR SUSPENSION

CAMBER

353370

SHIM 3x9x1

353353

SHIM 3x9x7

353370

SHIM 3x9x2

960030

N M3

902318

SH M3x18

902330

SH M3x30

960030

N M3

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

2mm

Do not overtighten the self-locking nut. Overtightening may result in suspension binding.

If the rear upright does not move freely, use a HUDY Arm Reamer to resize the hole.

ARM REAMER

1+1mm

INITIAL SETTING

(HUDY #107633)

L=R

Check for free movement

DETAIL

L=R

RIGHT

THREAD

LEFT THREAD

OIL

Follow the TECH TIP on page 5 to install the pivot balls

RIGHT THREAD RIGHT THREADLEFT THREAD LEFT THREAD

26mm

7mm

26mm

NOTE ORIENTATION

INITIAL SETTING

DETAIL

INITIAL SETTING

L=R

3x18mm

3x30mm

BOOK

SET-UP

DETAIL

Use tools to tighten as shown

Special Tool for all turnbuckles & nuts (HUDY #181090) or Turnbuckle Wrench 5mm (HUDY #181050)

Page 17

REAR WING

4. REAR SUSPENSION

L=R

902314

SH M3x14

903312

SFH M3x12

960030

N M3

902318

SH M3x18

902320

SH M3x20

902310

SH M3x10

3x18mm

3x20mm

3x10mm

For stiffer wing mounting use #353550 ALU WING MOUNT BRACE

BOOK

SET-UP

DETAIL

INITIAL SETTING

R1R3R2

L=R

Page 18

909372

901408

902318

352120

909395

901303

901312

901305

903308

352324

352314

357212

352314

353371

333450

352470

352494

352470

352460

352006

352323

FRONT ANTI-ROLL BARS

#352487 1.6mm OPTION #352489 1.8mm OPTION #352490 2.0mm OPTION #352492 2.2mm OPTION #352493 2.3mm OPTION #352494 2.4mm INCLUDED #352495 2.5mm OPTION #352496 2.6mm OPTION

5. FRONT SUSPENSION

33 3450 ANTI-ROLL BAR BALL JOINT 5.8 MM (2) 35 2006 XB8’16 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 2120 XB8 COMPOSITE FRONT LOWER SUSPENSION ARM 35 2323 ALU FRONT LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL CENTER - V2 35 2324 ALU FRONT LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL CENTER - V2 35 2314 COMPOSITE SQUARE ADJ. ROLL CENTER BUSHINGS - V2 (2) 35 2460 PIVOT BALL 5.8 (10) 35 2470 BALL JOINT 5.8 (8) 35 2494 FRONT ANTI-ROLL BAR 2.4MM 35 3371 SET OF COMPOSITE LOWER ARM SHIMS

35 7212 LOWER INNER PIVOT PIN F+R (2)

BAG

#333451 ALU ANTI-ROLL BAR PIVOT BALL 5.8 MM - SWISS 7075 T6 - HARDCOATED (2)

#902407 HEX SCREW SH M4x7 WITH HEX FROM BOTTOM (4)

Page 19

5. FRONT SUSPENSION

KICK UP

ROLL CENTER DOWNSTOP

WHEELBASE

TRACK WIDTH

901408

SB M4x8

909395

SS 3.5x45

909372

SS 3.5x22

353371

SHIM 4x10x2

All possible mounting alternatives

of eccentric bushings

3.5x22mm

3.5x45mm

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° offset. The 0.5mm, 0.5° represents the half change.

* Not recommended to use this setting.

NOT RECOMMENDED TO USE THIS SETTING

TRACK-WIDTH ROLL CENTER

FF FFFR FR(mm) (mm)

=308

=306

=310*

=-1

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).

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

➊

➋

➌

➍

➎

4x8mm

2mm

4mm

2mm

4mm

DETAIL

FRONT ARM

L=R

DETAIL

Check for free movement

DETAIL

Push the arm from both sides to create play

INITIAL SETTING

0.5°

1°

INITIAL SETTING

0.5°

1°

(HUDY #107634)

ARM REAMER

If the suspension arms do not move freely, use a HUDY Arm Reamer to resize the holes.

DETAIL

0.0mm

DOWNSTOP SETTING

DETAIL

2.0mm Allen

#902407

Downstop screw for ﬁne tuning.

INITIAL SETTING ALTERNATIVE SETTING

INITIAL SETTING

BOOK

SET-UP

Page 20

5. FRONT SUSPENSION

ANTI-ROLL BAR

901303

SB M3x3

901305

SB M3x5

901312

SB M3x12

902318

SH M3x18

903308

SFH M3x8

3x3mm

3x5mm

3x8mm

-2~0mm

3x18mm

L=R

Step check for free movement

➊

Loosen the 3x5 setscrew if the anti-roll bar does not turn freely

Step

➊

➋

➌

➍

L=R

STEP DETAIL

➍

1.5mm

6mm

Follow the TECH TIP on page 5 to

install the pivot balls

DETAIL

BOOK

SET-UP

FRONT ANTI-ROLL BARS

#352487 1.6mm OPTION #352489 1.8mm OPTION #352490 2.0mm OPTION #352492 2.2mm OPTION #352493 2.3mm OPTION #352494 2.4mm INCLUDED #352495 2.5mm OPTION #352496 2.6mm OPTION

Page 21

940816

BB 8x16x5

901504

SB M5x4

940814

BB 8x14x4

980317

P 3x17

903312

SFH M3x12

352243

6. FRONT SUSPENSION

35 2133 XB8’16 FRONT UPPER ARM 35 2242 XB8’16 STEERING BLOCK - TRAILING AXLE - RIGHT 35 2243 XB8’16 STEERING BLOCK - TRAILING AXLE - LEFT 35 2372 XB8’17 ALU STEERING PLATE - SWISS 7075 T6 (L+R) 35 5222 UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™ 35 5250 ALU WHEEL AXLE - BLACK COATED (2) 35 7250 STEEL PIVOT BALL 13.7 MM (2) 35 7251 ALU PIVOT BALL 13.7 MM WITH STEEL SCREW (2) 35 7252 ALU ADJUSTING NUT M15x1 (2)

BAG

L=R

352372

357256

357251 ALU BLACK

STEEL SILVER

352242

357250

940816

355222

352133

980317

355250

901504

357254

357252

940814

903312

35 7254 COMPOSITE BALL CUP 13.9 MM (2) 35 7256 ALU SHIM 6x13x1 (2)

90 1504 HEX SCREW SB M5x4 (10) 90 3312 HEX SCREW SFH M3x12 (10) 94 0814 HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2) 98 0317 PIN 3x17 (10)

#357253 BRASS ADJUSTING NUT M15x1

➊

➋

➎

➍

➏

➌

8x14x4mm

8x16x5mm

NOTE ORIENTATION

To tighten the setscrew you can also use the (HUDY 17mm Wheel Nut Tool #107570)

2.5mm

DETAIL

OFFSET WHEEL AXLES

#355250 0mm INCLUDED #355251 +1mm OPTION #355252 +2mm OPTION

OFFSET WHEEL AXLES

#355250 0mm INCLUDED #355251 +1mm OPTION #355252 +2mm OPTION

OIL

Follow the TECH TIP on page 5 for drive shaft pin servicing

Use HUDY Ball-Bearing Grease

#106220 - STANDARD #106221 - BLUE #106222 - RED

352241

XB8’16 STEERING BLOCK

CVD DRIVE SHAFT

355211

355221

355237

980263

CVD DRIVE SHAFT

355211

355221

355237

980263

Page 22

CAMBER

TRACK-WIDTH

ROLL CENTER

357256

SHIM 6x13x1

357256

SHIM 6x13x1

L=R

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.

ALU pivot ball BLACK color

STEEL pivot ball SILVER color

DETAIL

Tighten hex nuts using HUDY tool #107581

L=R

6. FRONT SUSPENSION

#357253 Brass Adjusting Nut M15x1

1mm

2.5mm

HUDY Tool Allen 2.5mm

BOOK

SET-UP

BOOK

SET-UP

Page 23

903412

SFH M4x12

6. FRONT & REAR ASSEMBLY

35 1111 XB8E’16 ALU CHASSIS - SWISS 7075 T6 (3MM) 35 1200 FRONT & REAR BUMPER - V2 35 3084 XB8’16 COMPOSITE REAR BRACE - MEDIUM

BAG

960040

960030

902325

353084

903412

351200

351111

351200

90 2325 HEX SCREW SH M3x25 (10) 90 3412 HEX SCREW SFH M4x12 (10) 96 0030 NUT M3 (10) 96 0040 NUT M4 (10)

902312

#353280 GRAPHITE INSERT FOR MEDIUM REAR COMPOSITE BRACE - SET

960030

353280

Page 24

6. FRONT & REAR ASSEMBLY

902325

SH M3x25

903412

SFH M4x12

960030

N M3

960040

N M4

#353280 GRAPHITE INSERT SET for extra stiffness adjustment.

DETAIL

903412

SFH M4x12

NOTE ORIENTATION

Page 25

7. STEERING

30 3123 ALU SHIM 3x6x2.0MM (10) 35 1301 BODY POSTS 35 1344 COMPOSITE UPPER PLATE 35 2084 XB8’16 COMPOSITE FRONT BRACE 35 2050 XB8 ALU FRONT SHOCK TOWER - CNC MACHINED 7075 T6 (4MM) 35 2314 COMPOSITE SQUARE ADJ. ROLL CENTER BUSHINGS - V2 (2) 35 2333 XB8 ALU FRONT UPPER ARM HOLDER - SWISS 7075 T6 (6MM) 35 2381 XB8 CASTER CLIPS (2) 35 2505 XB8’16 SERVO SAVER COMPLETE SET - GRAPHITE 35 2514 XB8 COMPOSITE SERVO SAVER - GRAPHITE 35 2576 STEERING PLATE BUSHING (2) 35 2579 XB8’16 ALU STEERING PLATE - SWISS 7075 T6 35 2611 ADJ. TURNBUCKLE M4 L/R 52.5 MM - HUDY SPRING STEEL™ (2) 35 2653 BALL STUD 6.8MM WITH BACKSTOP - M3 (2) 35 2659 BALL STUD 6.8MM WITH BACKSTOP L=6MM - M3x11 (2) 35 2664 COMPOSITE STEERING BALL JOINT 6.8MM - V3 (2) 35 2666 COMPOSITE RELIEF STEERING BALL JOINT 6.8MM (2)

BAG

352576

352514

902308

303123

357222

960030

352653

352666

352659

960030

902310

960040

352611

351301

903310

903312

903308

940610

352505

352514

352579

902310

303123

960030

352664

352659

352514

352505

970121

940610

352505

903410

903312

351344

352084

352381

352333

352314

902312

352050

903412

35 7222 FRONT UPPER PIVOT PIN 4x45 (2)

90 2308 HEX SCREW SH M3x8 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 2312 HEX SCREW SH M3x12 (10) 90 3308 HEX SCREW SFH M3x8 (10) 90 3310 HEX SCREW SFH M3x10 (10) 90 3312 HEX SCREW SFH M3x12 (10) 90 3410 HEX SCREW SFH M4x10 (10) 90 3412 HEX SCREW SFH M4x12 (10) 94 0610 HIGH-SPEED BALL-BEARING 6x10x3 BLUE COVERED (2) 96 0030 NUT M3 (10) 96 0040 NUT M4 (10) 97 0121 O-RING 12.1 x 1.6 (10)

352653

#352051 XB8 GRAPHITE FRONT SHOCK TOWER 4MM

#352658 BALL STUD 6.8MM WITH BACKSTOP L=6MM - M3x8 (2)

902312

Must be used also 2pcs of #303136 shim 3x7x1mm.

NOTE

#351348 XB8’16 GRAPHITE UPPER PLATE

Page 26

SERVO SAVER

7. STEERING

902308

SH M3x8

940610

BB 6x10x3

903410

SFH M4x10

970121

O 12.1x1.6

For servicing use

Bearing Oil (HUDY #106230)

4~5mm

INITIAL PRELOAD SETTING

DETAIL

3.0mm

HUDY Tool Allen 3.0mm

BOOK

SET-UP

NOTE ORIENTATION

DETAIL

Page 27

ROLL CENTER

903308

SFH M3x8

903312

SFH M3x12

Check for free

movement

After the top deck assembly check for free movement of steering system.

7. STEERING

902312

SH M3x12

902310

SH M3x10

960030

N M3

4x12mm

3x12mm

3x10mm

3x12mm

All possible mounting

alternatives of eccentric bushings

RIGHT THREAD

LEFT THREAD

30.15 mm 30.15 mm

LEFT THREAD LEFT THREAD

RIGHT THREAD RIGHT THREAD

NOTE

ORIENTATION

NOTE

ORIENTATION

NOTE ORIENTATION

NOTE

ORIENTATION

NOTE

ORIENTATION

NOTE ORIENTATION

DETAIL

NOTE ORIENTATION

INITIAL SETTING

0.5°

1°

903412

SFH M4x12

960040

N M4

BOOK

SET-UP

Follow the TECH TIP on page 5 to install the pivot balls

903310

SFH M3x10

DO NOT OVERTIGHTEN SCREWS

Page 28

ROLL CENTER

CASTER

ACKERMANN BUMP STEER

TOE-IN

7. STEERING

F=R

All possible mounting

alternatives of eccentric bushings

2.0mm

1.0mm

UPPER CLIP

LOWER SHIM

Behind arm

960030

N M3

303123

SHIM 3x6x2

L=R

NOTE ORIENTATION Adjustment block towards outside

2.0mm

Check for free

movement

Check for free movement

INITIAL POSITION

902312

SH M3x12

902310

SH M3x10

NOTE ORIENTATION Adjustment block towards outside

0.5°

1°

INITIAL POSITION

CASTER

UPPER CLIP

(Behind arm)

LOWER SHIM (Behind arm)

4mm 2mm 0

4mm 24º 21º 18º 3mm 25.5º 22.5º 19.5º 2mm 27º 24º 21º 1mm 28.5º 25.5º 22.5º

0 30º 27º 24º

#352051 XB8 GRAPHITE FRONT SHOCK TOWER 4MM

NOTE ORIENTATION

BOOK

SET-UP

BOOK

SET-UP

Page 29

8. CENTER DIFF & MOTOR

BAG

351159

902330

352290

903308

354053

902305

961032

354011

903412

908314

961032

Motor (NOT INCLUDED)

358783

903412

351159

358784

355712-17 (NOT INCLUDED)

908312

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 5712~17 XRAY 12~17T PINION GEAR (OPTION) 35 8783 XB9E ALU MOTOR MOUNT PLATE - V2 35 8784 XB8E ALU MOTOR MOUNT - V2

90 2305 HEX SCREW SH M3x5 (10)

90 2330 HEX SCREW SH M3x30 (10)

90 3308 HEX SCREW SFH M3x8 (10)

90 3412 HEX SCREW SFH M4x12 (10)

90 8312 HEX SCREW SOCKET HEAD CAP M3x12 (10)

90 8314 HEX SCREW SOCKET HEAD CAP M3x14 (10)

96 1032 WASHER S 3.2 (10)

XRAY PINION GEAR

#355712

12T OPTION

#355713

13T OPTION

#355714

14T OPTION

#355715

15T OPTION

#355716

16T OPTION

#355717

17T OPTION

902305

SH M3x5

961032

S 3.2

CENTER DIFF

#353250 XB8 GRAPHITE BRACE FOR CHASSIS SIDE GUARDS - SET

Page 30

902330

SH M3x30

903308

SFH M3x8

NOTE ORIENTATION

8. CENTER DIFF & BRAKE

902305

SH M3x5

961032

S 3.2

Page 31

903412

SFH M4x12

908314

SCH M3x14

961032

S 3.2

908312

SCH M3x12

Pinion

355712~17 (NOT INCLUDED)

DETAIL

Gear mesh adjustment

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.

DETAIL

8. CENTER DIFF & BRAKE

NOTE ORIENTATION

All screws

XRAY PINION GEAR

#355712

12T OPTION

#355713

13T OPTION

#355714

14T OPTION

#355715

15T OPTION

#355716

16T OPTION

#355717

17T OPTION

Page 32

BAG

10. RADIO CASE

902312

SH M3x12

30 2610 ADJ. TURNBUCKLE L/R 40 MM - HUDY SPRING STEEL (2) 30 6310 ANTENNA TUBE (2) 33 6000 COMPOSITE RECEIVER CASE - V2 33 6060 RECEIVER SWITCH - SET (OPTION) 35 2460 PIVOT BALL 5.8 (10) 35 2670 SERVO BALL JOINT 5.8MM (4) 35 6118 XB9E GRAPHITE RECEIVER CASE TOP PLATE 35 6120 STEERING SERVO MOUNT - SET 35 6152 XB8E’16 COMPOSITE BATTERY PLATE 35 6160 VELCRO BATTERY STRAP 20x300MM (2) 35 6194 XB9E ALU MOUNT FOR RECEIVER BOX

35 6200 BRAKE/THROTTLE ARMS & STEERING SERVO ARMS - SET 38 9135 CONNECTING CABLE RECEIVER/BATT. PACK (OPTION)

90 2308 HEX SCREW SH M3x8 (10) 90 2312 HEX SCREW SH M3x12 (10) 90 2314 HEX SCREW SH M3x14 (10) 90 3410 HEX SCREW SFH M4x10 (10) 90 3412 HEX SCREW SFH M4x12 (10) 90 7206 SCREW PHILLIPS 2x6 (10) 96 0030 NUT M3 (10) 96 0040 NUT M4 (10)

NOTE ORIENTATION

LEFT THREADRIGHT THREAD

Use appropriate servo arm:

K - (23T) H - (24T) F - (25T)

356200

356120

356194

903412

Receiver (NOT INCLUDED)

336000

902308

306310

Speed Controller (NOT INCLUDED)

Servo Screw (NOT INCLUDED)

LiPo Battery Pack (NOT INCLUDED)

356152

960040

907206

356160

903410

902312

Servo Grommet (NOT INCLUDED)

Steering Servo (NOT INCLUDED)

902308

356118

352460

352670

902312

302610

352670

960030

902314

The length of the linkages varies according to the type of servo.

approx. 24mm

LEFT

THREAD

RIGHT

THREAD

Follow the TECH TIP on page

5 to install the pivot balls

356152

HUDY ALU SERVO HORNS

#293501 23T KO Propo, Airtronics, Sanwa OPTION #293502 24T Hitec OPTION #293503 25T Futaba OPTION

HUDY ALU SERVO HORNS

#293501 23T KO Propo, Airtronics, Sanwa OPTION #293502 24T Hitec OPTION #293503 25T Futaba OPTION

Page 33

10. RADIO CASE

902312

SH M3x12

902308

SH M3x8

902308

SH M3x8

907206

2x6

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.

Receiver (NOT INCLUDED)

Antenna

Servo Screw (NOT INCLUDED)

Page 34

902314

SH M3x14

903412

SFH M4x12

903410

SFH M4x10

960030

N M3

960040

N M4

Double-Sided Tape (NOT INCLUDED)

Cut Battery Plate

View

Tie Strap

(NOT INCLUDED)

ALETRNATIVE 1 ALETRNATIVE 2 (INITIAL SETTING)

Speed Controller

(NOT INCLUDED)

Cut the foam as needed to ﬁll in space between the batteries and holder.

Battery

(NOT INCLUDED)

Velcro Battery Strap

10. RADIO CASE

Page 35

BAGS

11.1

35 2460 PIVOT BALL 5.8 - V3 (10) 35 8019 COMPOSITE SET OF SHIMS FOR SHOCKS - V2 (2) 35 8020 COMPOSITE SHOCK PARTS 35 8032 SHOCK PISTON SET 8-HOLE (1.2; 1.3) 10-H. (1.1MM) - DELRIN - V2 35 8033 COMPOSITE SHOCK 6-HOLE PISTON SET (1.2; 1.3; 1.4MM) - DELRIN - V2 35 8040 HARDENED SHOCK SHIMS (4) 35 8041 STEEL SHOCK BUSHING (2) 35 8042 COMPOSITE SHOCK BUSHING & SHIM - V2 (2+2) 35 8053 XB8 ALU SHOCK CAP NUT - BLACK COATED (2) 35 8054 XB8 ALU SHOCK CAP NUT WITH VENT HOLE - BLACK COATED (2) (OPTION) 35 8074 FOLDING SHOCK BOOT (4) 35 8084 SHOCK RUBBER MEMBRANE BOTTOM RIBBED (4)

11. SHOCK ABSORBERS

35 8124 XB8 ALU FRONT SHOCK BODY - HARD COATED (2) 35 8142 ALU SHOCK BODY NUT FOR SHOCK BOOT (2) 35 8150 ALU SHOCK BODY ADJ. NUT (2) 35 8162 FRONT SHOCK SHAFT (2) 35 8225 XB8’16 ALU REAR SHOCK BODY - HARD COATED (2) 35 8263 XB8 REAR SHOCK SHAFT (2) 35 8315 XRAY FRONT SPRING 69MM - 3 DOTS (2) 35 8335 XRAY REAR SPRING 85MM - 3 DOTS 96 0026 NUT M2.5 - SHORT (10) 97 0100 O-RING 10 x 1.5 (10) 97 0180 O-RING 18 x 1.8 (10) 97 1034 SILICONE O-RING 3.5x2 (10)

#358054 XB8 ALU SHOCK CAP NUT WITH VENT HOLE - BLACK COATED (2)

358041

358263

352460

358162

358042

358084

960026

358040

358225

358124

970100

971034

970180

358074

358019

358142

358150

358335

358315

358053

358032 358033

358020

10 holes/ø1.1mm

6 holes/ø1.2mm

8 holes/ø1.2mm

6 holes/ø1.4mm

8 holes/ø1.3mm

6 holes/ø1.3mm

DETAIL

PISTONS

SHOCK SPRINGS

#358315 C=0.77-0.80 3 DOTS FRONT INCLUDED #358316 C=0.80-0.83 4 DOTS FRONT OPTION #358335 C=0.68-0.70 3 DOTS REAR INCLUDED #358336 C=0.70-0.73 4 DOTS REAR OPTION

FRONT & REAR PROGRESSIVE SPRINGS

#358174 C=0.7-0.8 Grey SHORT OPTION #358274 C=0.5-0.6 Grey MEDIUM 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

REAR PROGRESSIVE SPRINGS

#358279 C=0.55-0.63 2 STRIPES LONG OPTION #358280 C=0.6-0.68 3 STRIPES LONG OPTION #358281 C=0.65-0.7 4 STRIPES LONG OPTION

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 #358187 C=0.92 Violet SHORT OPTION

REAR LINEAR SPRINGS

#358282 C=0.47 White LONG OPTION #358283 C=0.50 Grey LONG OPTION #358284 C=0.53 Silver LONG OPTION #358285 C=0.57 Grey-Blue LONG OPTION #358287 C=0.65 Violet LONG OPTION #358288 C=0.70 Purple LONG OPTION

Page 36

SHOCK DAMPING

SHOCK PISTONS

960026

N M2.5

358040

S 2.5x6x0.5

FRONT SHOCKS (SHORT)

There are two different thickness shims, use them as shown. Use the same procedure when building both front and rear shocks.

REAR SHOCKS (LONG)

CORRECT

TIGHTEN GENTLY

The self-locking nut is gently tightened. The piston remains undistorted and fits inside the shock body perfectly, ensuring smooth movement of the piston.

INCORRECT

DO NOT OVERTIGHTEN

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.

FRONT SHOCKS

REAR SHOCKS

SHORT shock body

SHORT shock rod

LONG shock body

LONG shock rod

EXTREMELY IMPORTANT

Do not push the shock rod straight through the lower shock body assembly; O-ring damage may result.

Twist the shock rod through the lower shock body assembly.

INCORRECT

CORRECT

FRONT SHOCK

11.1

BAG BAG

REAR SHOCK

8 holes ø1.2mm pistons

8 holes

ø1.2mm pistons

LONG rodSHORT rod

NOTE ORIENTATION

CORRECT

INCORRECT

Grip the shock rod at top of exposed threads with side cutting pliers. Be careful not to damage the shock rod.

971034

O 3.4x2

970100

O 10x1.5

DETAIL

O-ring

Thin Shim

O-ring

Thick Shim

DETAIL

DETAIL DETAIL

BOOK

SET-UP

11. SHOCK ABSORBERS

Page 37

SHOCK OIL

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%.

➐

HALF TIGHTEN TIGHTEN FULLY

100%

Follow the steps below to set the shock rebound to the default setting of 0%.

970180

O 18x1.8

11. SHOCK ABSORBERS

FRONT (SHORT) Oil 700cSt

REAR (LONG) Oil 550cSt

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 550cSt 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.

➊ ➋ ➌ ➍ ➎ ➏

3~5x

UP & DOWN

50%

DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND)

DETAIL

Grip the shock rod at top of exposed threads with side cutting pliers. Be careful not to damage the shock rod.

FRONT SHOCKS

REAR SHOCKS

INCORRECT

CORRECT

DETAIL

1 mm

DETAIL

BOOK

SET-UP

Page 38

Fill the shock body with shock oil up to the top. Make sure to use same viscosity shock oil as is in the shock.

➋

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.

➌

➍

50%

HALF TIGHTEN

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%.

➍

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%.

➎ ➏

TIGHTEN FULLY

100%

50%

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.

Fill the shock body with shock oil up to the top. Make sure to use same viscosity shock oil as is in the shock.

➋

Orient the filled shock vertically for several minutes with the shock shaft fully extended. The remaining air bubbles will release.

➌

TIGHTEN FULLY

100%

50%

100%

SHORT front shock

LONG rear shock

IMPORTANT! Both front shocks must be the same overall length.

IMPORTANT!

IMPORTANT! Both rear shocks must be the same overall length.

FRONT SHOCKS

REAR SHOCKS

FRONT & REAR SHOCKS

SHORT spring

LONG spring

SETTING THE SHOCK REBOUND TO 50% (MEDIUM REBOUND)

11. SHOCK ABSORBERS

➊

Extend the shock shaft completely and remove the shock cap.

REMOVE SHOCK CAP

SETTING THE SHOCK REBOUND TO 100% (HIGH REBOUND)

ALTERNATE SHOCK REBOUND SETTING (50% AND 100%)

➊

Extend the shock shaft completely and remove the shock cap.

REMOVE SHOCK CAP

REAR shock PRELOAD

FRONT shock PRELOAD

approx. 10mm

approx. 5mm

DETAIL

SPRING RATE

SHOCK PRELOAD

RIDE HEIGHT

BOOK

SET-UP

Page 39

BAG

35 3511-K XB8 REAR WING - BLACK 35 3565 COMPOSITE REAR WING SHIM - BLACK (2) 35 5261 WHEEL NUT - RIBBED - HARD COATED (2) 35 8047 STEEL SCREW SHOCK PIVOT BALL WITH HEX (2) 35 8105 XB8 FRONT SHOCK ABSORBERS + BOOTS COMPLETE SET (2) 35 8206 XB8’16 REAR SHOCK ABSORBERS + BOOTS COMPLETE SET (2) 35 9400 BODY CLIP (10) 35 9710 XRAY XB8’16 BODY

90 2318 HEX SCREW SH M3x18 (10) 90 2319 HEX SCREW SH M3x18 - LEFT THREAD (10) 90 3312 HEX SCREW SFH M3x12 (10) 96 0030 NUT M3 (10)

353511-K

353565

902318

902319

358047

Tires (NOT INCLUDED)

358206

358047

355261

960030

358105

960030

Front Shock

Rear Shock

903312

359400

355261

Inserts (NOT INCLUDED)

359809 (NOT INCLUDED)

359710

12. FINAL ASSEMBLY

WING SHIMS

#353565 COMPOSITE INCLUDED #293561 ALU OPTION #293561-O ALU OPTION #353561 ALU OPTION

WHEEL NUTS

#355261 OPEN INCLUDED #293560 COVERED OPTION #355265 COVERED OPTION

WINGS

#353511-K BLACK INCLUDED #353511 WHITE OPTION #353511-Y YELLOW OPTION #353512 LEXAN OPTION

XRAY STARBURST WHEELS

#359808 PINK OPTION #359809 YELLOW OPTION

#359711 XRAY XB8 HIGH SPEED BODY

Page 40

SHOCK ABSORBERS

960030

N M3

902319

SH M3x18

LEFT thread

902318

M3x18

FRONT SHOCKS (SHORT)

NOTE ORIENTATION

SHORTER

LONGER

On the front right arm use the SILVER M3x18

screw - this screw has LEFT THREAD

Use STANDARD M3x18 screw

3x18mm

L=R

902319

SH M3x18

LEFT thread

960030

N M3

902318

SH M3x18

REAR SHOCKS (LONG)

On the rear left arm use the SILVER M3x18 screw - this screw has LEFT THREAD

Use STANDARD M3x18 screw

M3x18mm

NOTE ORIENTATION

SHORTER

LONGER

L=R

DETAIL

INITIAL SETTING

L=R

INITIAL SETTING

DETAIL

L=R

INITIAL SETTING

DETAIL

L=R

DETAIL

L=R

INITIAL SETTING

BOOK

SET-UP

BOOK

SET-UP

12. FINAL ASSEMBLY

Page 41

903312

SFH M3x12

960030

N M3

12. FINAL ASSEMBLY

To tighten the setscrew you can also use the HUDY 17mm Wheel Nut Tool #107570

NOTE

ORIENTATION

DETAIL

WING SHIMS

#353565 COMPOSITE INCLUDED #293561 ALU OPTION #293561-O ALU OPTION #353561 ALU OPTION

WHEEL NUTS

#355261 OPEN INCLUDED #293560 COVERED OPTION #355265 COVERED OPTION

XRAY STARBURST WHEELS

#359808 Pink OPTION #359809 Yellow OPTION

➍

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.

Before painting, wash the inside of the body with mild detergent, and then rinse and dry thoroughly.

Mask all windows.

Apply paint masks as appropriate.

Paint the body using paints formulated for polycarbonate bodies.

When the paint is dry, remove the masking.

Carefully cut out the body using appropriate scissors or cutting tools.

When you have finished cutting, peel off the external protective films.

➊

➋

➌

➎

➏

➐

➑

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

DETAIL

WINGS

#353511-K BLACK INCLUDED #353511 WHITE OPTION #353511-Y YELLOW OPTION #353512 LEXAN OPTION

Page 42

• Never modify the engine or muffler.

• Confirm the position of needle and idling before running. Be sure to run a new engine smoothly.

• Make sure the air filter is clean and oiled.

• Never run your engine without an air filter. Your engine can be seriously damaged if dirt and debris get inside the engine.

• For proper engine break-in, please refer to the manual that came with the engine.

• The engine may not start or run properly if the air filter is dirty, or choked with sand and dust.

• If the fuel pipe is choked or deteriorates, the engine may not start, and there is danger that fuel will leak out.

1. Make sure the transmitter and receiver batteries are fully charged.

Make sure that your transmitter and receiver are both on the same frequency. If you have a

transmitter with multiple model memory, make sure you have selected the proper profile for your car.

3. Put the car on the starter box and keep the tires from touching the ground.

4. Turn on the transmitter.

5. Turn on the receiver in the car.

6. Make sure the steering servo and engine servos work normally and adjust them correctly.

7. Put fuel in the fuel tank, and close the cap securely.

8. Apply the glow igniter to the engine glowplug.

9. Push the model car onto the starter box to start the engine. (If the engine is new, follow the instruction manual and be sure to break in the new engine properly).

10. When the engine has started, remove the glow igniter.

11. Follow your engine break-in procedure and tune the engine as appropriate.

STARTING AND RUNNING THE ENGINE Be sure to observe the following starting process. Failure to do so may cause the model car to start suddenly, which may lead to damage or unexpected accidents.

STOPPING THE ENGINE Before you stop the engine, try to make sure the engine is at idle first. There are several ways to stop the engine:

•

Use a rag to cover the exhaust tip. Be careful! The exhaust is extremely hot so use a thick rag and gloves.

• Pinch the fuel tubing to stop the flow of fuel to the carb. Be careful, this can make the motor run lean which can damage the motor.

• Put your hand over the air filter, or squeeze the air filter element to block the airflow.

• Press an object (such as a screwdriver handle or shoe) against the rotating flywheel to stop its rotation. Be very careful, and do not stick your hand or fingers near the rotating flywheel.

FINISHING OPERATIONS

1. Stop the engine.

2. Turn off the receiver in the car

3. Turn off the transmitter.

MAINTENANCE AFTER RUNNING Take proper care of your car after running to keep it performing well, and take notice of any damage and wear.

1. Do not leave fuel in the tank.

2. Go outside to drain any residual fuel from the exhaust pipe.

3. Clean the car and remove all sand, mud, and other debris.

4. Use after-run oil in your engine after you have finished running for the day.

• 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.

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.

ENGINE OPERATION

PREPARING TO OPERATE THE ENGINE

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.

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 ballbearings 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.

MAINTENANCE