Xray XB4 Instruction Manual

Page 1

Page 2

BEFORE YOU START

This is a high-competition, high-quality RC car intended for persons aged 16 years and older with previous experience building and operating RC model racing cars. This is not a toy; it is a precision racing model. This model racing car is not intended for use by beginners, inexperienced customers, or by children without direct supervision of a responsible, knowledgeable adult. If you do not fulﬁll these requirements, please return the kit in unused and unassembled form back to the shop where you have purchased it.

Before building and operating your XRAY, 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.

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

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

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 this is not what you wanted or expected, do not continue any further. Your hobby dealer can not accept your 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 Vystavisku 6992 91101 Trenčín Slovakia, EUROPE Phone: 421-32-7401100 Fax: 421-32-7401109 E-mail: info@teamxray.com

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.

XRAY USA

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

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.

Page 3

IMPORTANT NOTES – ELECTRICAL

• Insulate any exposed electrical wiring (using heat shrink tubing or electrical tape) to prevent dangerous short circuits. Take maximum care in wiring, connecting and insulating cables. Make sure cables are always connected securely. Check connectors for if they become loose. And if so, reconnect them securely. Never use RC models with damaged wires. A damaged wire is extremely dangerous, and can cause short-circuits resulting in ﬁre. Please have wires repaired at your local hobby shop.

• Low battery power will result in loss of control. Loss of control can occur due to a weak battery in either the transmitter or the receiver. Weak running battery may also result in an out of control car if your car‘s receiver power is supplied by the running battery. Stop operation immediately if the car starts to slow down.

• When not using RC model, always disconnect and remove battery.

• Do not disassemble battery or cut battery cables. If the running battery short-circuits, approximately 300W of electricity can be discharged, leading to ﬁre or burns. Never disassemble battery or cut battery cables.

• Use a recommended charger for the receiver and transmitter batteries and follow the instructions correctly. Over-charging, incorrect charging,

R/C & BUILDING TIPS

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 shortcircuit 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.

• 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.

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

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.

but is not limited to damage from crashing, chemical and/or water damage, excessive moisture, improper or no maintenance, or user modiﬁcations which compromise the integrity of components. Warranty will not cover components that are considered consumable on RC vehicles. XRAY does not pay nor refund shipping on any component sent to XRAY or its distributors for warranty. XRAY reserves the right to make the ﬁnal determination of the warranty status of any component or part.

Limitations of Liability

XRAY makes no other warranties expressed or implied. XRAY shall not be liable for any loss, injury or damages, whether direct, indirect, special, incidental, or consequential, arising from the use, misuse, or abuse of this product and/ or any product or accessory required to operate this product. In no case shall XRAY‘s liability excess the monetary value of this product.

Take adequate safety precautions prior to operating this model. You are responsible for this model’s assembly and safe operation.

Disregard of the any of the above cautions may lead to accidents, personal injury, or property damage. XRAY MODEL RACING CARS assumes no responsibility for any injury, damage, or misuse of this product during assembly or operation, nor any addictions that may arise from the use of this product. All rights reserved.

QUALITY CERTIFICATE

XRAY MODEL RACING CARS uses only the highest quality materials, the best compounds for molded parts and the most sophisticated manufacturing processes of TQM (Total Quality Management). We guarantee that all parts of a newly-purchased kit are manufactured with the highest regard to quality. However, due to the many factors inherent in model racecar competition, we

cannot guarantee any parts once you start racing the car. Products which have been worn out, abused, neglected or improperly operated will not be covered under warranty. We wish you enjoyment of this high-quality and high-performance RC car and wish you best success on the track!

In line with our policy of continuous product development, the exact specifications of the kit may vary. In the unlikely event of any problems with your new kit, you should contact the model shop where you purchased it, quoting the part number. We do reserve all rights to change any specification without prior notice. All rights reserved.

Page 4

SYMBOLS USED

Part bags used Assemble left and

Assemble in the

specified order

right sides the

same way

Apply greaseScale Ensure smooth

Optional

1:1

TOOLS REQUIRED

Scissors

(HUDY #188990)

Special Tool for

turnbuckles, nuts

(HUDY #181090)

L=R

parts

Turnbuckle Wrench

3mm (HUDY #181030)

3.0 mm

Pay attention

here

non-binding

movement

Pocket Hobby Knife

Assemble as many

(HUDY #188981)

times as specified

(here twice)

Tighten screw

gently

threadlock

Completed

assembly

Side Cutters

(HUDY #189010)

Apply

Apply CA glue

Detail

DETAIL

Combination Pliers

(HUDY #189020)

Apply oil

RC Shock-Plier Uni Tool

OIL

Apply cleaner

(HUDY #183011)

Tweezer

HUDY TOOLS:

Allen 1.5mm

Allen 2.0mm

Socket 5.5mm

Socket 7.0mm

ITEMS INCLUDED

HUDY Premium Silicone Oils HUDY Premium Silicone Oils HUDY Premium Silicone Oils Graphite Grease

Oil 500cSt (#106350) Oil 700cSt (#106370) Oil 10.000cSt (#106510)

(HUDY #106210)

EQUIPMENT REQUIRED

Transmitter Steering ServoReceiver

Electric Motor &

Pinion Gear with Set-screw

Arm Reamer 3.0mm

Reamer (HUDY #107600) or (HUDY #107601)

Bearing Oil

(HUDY #106230)

CA glue

Speed Controller LiPo Battery

Lexan™ Paint Battery Charger Tires & Inserts

Double-sided Tape (HUDY #107875)

Page 5

NOT INCLUDED

Set-up Book

To ensure that you always have access to the most up-to-date version of the HUDY Set-up Book, you can download it from the HUDY website at [www.hudy.net]. By offering this online version instead of including a hardcopy printed version in kits, you will always be assured of having the most current updated version.

XRAY offers wide range of optional tuning parts which are listed in tables like these. Please refer to the exploded view of each main section to verify which part is included in the kit while all other parts are available only as an optional part and must be purchased separately.

COLOR INDICATIONS

At the beginning of each section is an exploded view of the parts to be assembled. There is also a list of all the parts and part numbers that are related to the assembly of that section.

The part descriptions are color-coded to make it easier for you to identify the source of a part. Here are what the different colors mean:

XB4 TECH TIPS

SAMPLE OF OPTIONAL PARTS

#36XXXX TYPE OPTION 1 #36XXXX TYPE OPTION 2 #36XXXX TYPE INCLUDED #36XXXX TYPE OPTION 3

365884

361100

364900

STYLE A - indicates parts that are included in the bag marked for the section.

STYLE B - indicates parts that are included in the box.

STYLE C - indicates parts that are already assembled from previous steps.

TIP

DRIVE SHAFT PIN 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.

TIP

GRAPHITE PARTS PREPARATION

Follow this Tech Tip to prepare the graphite parts. Sand the edges with sandpaper, and then seal the edges with CA glue to reinforce them and help prevent delamination.

Prepare all XB4 Graphite Parts:

• Front shock tower

• Rear shock tower

Press out the worn pins.

Press in new pins and regularly inspect for wear.

Fine sandpaper

Use ﬁne sandpaper to sand smooth the edges of all graphite parts.

For quick & easy drive pin replacements use #106000 HUDY Drive Pin Replacement Tool together with #106036 Ejector Pivot Pin & Alternating Pivot 2.5mm.

Apply CA glue to all edges of the graphite parts.

To replace the worn pins use only premium HUDY drive pins (#106051 3.0mm dia x 10mm lenght) (#106053 2.5mm dia x 10mm lenght)

Page 6

1. FRONT & REAR DIFFERENTIAL

#364941 STEEL DIFFERENTIAL BEVEL GEAR FOR LARGE VOLUME DIFF 41T

981210

941014

903258

BAG

304932 GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4) 304980 COMPOSITE GEAR DIFF CROSS PIN 304990 DIFF GASKET (4) 364903 GEAR DIFFERENTIAL - LARGE VOLUME - SET 364912 COMPOSITE GEAR DIFFERENTIAL CASE - LARGE VOLUME 364920 COMPOSITE GEAR DIFFERENTIAL COVER - LARGE VOLUME 364940 STEEL DIFFERENTIAL BEVEL GEAR FOR LARGE VOLUME DIFF 40T

364940

364962

304990

964031

964050

364920

964031

304932

304980

971050

964031

BEVEL & SATELITTE GEARS + PINS

#304932 + #304980 GRAPHITE INCLUDED #335030 + #335080 STEEL OPTION

981210

941014

971050

364962

364912

964050

304932

#364912-G GEAR DIFFERENTIAL CASE - LARGE VOLUME - GRAPHITE

#364920-G GEAR DIFFERENTIAL COVER - LARGE VOLUME - GRAPHITE

364962 GEAR DIFF OUTDRIVE ADAPTER FOR LARGE VOLUME DIFF (2) 903258 HEX SCREW SFH M2.5x8 (10) 941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2) 964031 WASHER S 3.5x10x0.2 (10) 964050 WASHER S 5x15x0.3 (10) 971050 SILICONE O-RING 5x1.5 (10) 981210 PIN 2x10 (10)

964050

S 5x15x0.3

971050

O 5x1.5

981210

P 2x10

964050

S 5x15x0.3

NOTE ORIENTATION

➊

OIL

➋

#106210 HUDY GRAPHITE GREASE

➍

STEP DETAIL Use tweezers to

insert pin

➍

➌

➍

➌

➎

#106210 HUDY GRAPHITE GREASE

➋

➍➎

STEP DETAIL

NOTE ORIENTATION

➎

➊

➍

DETAIL

971050

O 5x1.5

981210

P 2x10

➎

OIL

Page 7

1. FRONT & REAR DIFFERENTIAL

964031

S 3.5x10x0.2

Front diff

Silicone oil 10.000cSt

Fill just above the

cross-pins.

PROPER AMOUNT OF OIL IN THE DIFFS

Use a digital scale to measure the exact amount of oil in the diff. Remember that during operation the diff gets hotter and the heat may allow the oil to expand. If there is too much oil inside it may interfere with the diff operation and damage the internal gears.

Rear diff

OIL

Silicone oil 10.000cSt Fill just above the cross-pins.

Fill differential up to the top of the diff cross-pins. DO NOT fill the diff

to the top of the housing.

TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:

10.000 cSt

#107865

HUDY Ultimate Digital Pocket

1 1.47

Scale 300g±0.01g

13 30

DIFFERENTIAL OIL

903258

SFH M2.5x8

941014

BB 10x15x4

➊ Put the diff (without oil) on the scale and check the

weight (approximately 11.47g)

11.47g + 1.83g = 13.30g

➋ Slowly pour oil into the diff and watch the weight. Add

1.83g of oil into the diff. The approximate weight of the diff including oil is 13.30g.

TIPS FOR DIFFERENTIALS

REAR DIFERENTIALFRONT DIFERENTIAL

LOW TRACTION 7.000cSt (HUDY #106470) MEDIUM-HIGH TRACTION 10.000cSt (HUDY #106510) SUPER-HIGH TRACTION 15.000cSt (HUDY #106515)

NOTE:

Softer oil increases steering, harder oil increases stability.

2x 2x 2x

➍

Tighten the screws equally but do NOT

tighten them completely.

➌

➋

LOW TRACTION 7.000cSt (HUDY #106470) MEDIUM-HIGH TRACTION 10.000cSt (HUDY #106510) SUPER-HIGH TRACTION 15.000cSt (HUDY #106515)

NOTE:

Softer oil increases rear traction, harder oil increases on-power steering.

Use HUDY Ball-Bearing Grease

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

➊

➍

Finish tightening in this order.

➌

➋

Page 8

2. REAR CENTRAL TRANSMISSION

902310

363081

365430

365230

XRAY BALL-BEARING

#359050 5x10x4 GREASE OPTION #940510 5x10x4 OIL INCLUDED #940814 8x14x4 GREASE OPTION #940815 8x14x4 OIL INCLUDED

981208

980210

365442

365470

940510

#363084 XB4 ALU REAR SHOCK TOWER 3.0MM - V2

940815

362005

902306

MARKED “R“

365126

362005

364903+364940

902310

DETAIL

IMPORTANT

REAR BLOCK

DRIVE SHAFT COLLAR

#365470 COMPOSITE INCLUDED #365471-K ALU - BLACK OPTION #365471-O ALU - ORANGE OPTION

BAG

362005 DIFF BULKHEAD BLOCK SET REAR - NARROW 363081 GRAPHITE SHOCK TOWER REAR 3.0MM - V2 365126 STEEL BEVEL DRIVE GEAR - CNC-MACHINED - 16T 365230 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 365430 CENTRAL DRIVE SHAFT 108MM WITH 2.5MM PIN - HUDY SPRING STEEL™ 365442 CENTRAL SHAFT UNIVERSAL JOINT 365470 COMPOSITE DRIVE SHAFT SAFETY COLLAR - V2 (3)

980210

P 2x10

902306 HEX SCREW SH M3x6 (10) 902310 HEX SCREW SH M3x10 (10) 940510 BALL-BEARING 5x10x4 RUBBER SEALED - OIL (2) 940815 BALL-BEARING 8x14x4 RUBBER SEALED - OIL (2) 980210 PIN 2x10 (10) 981208 PIN 2x8 (10)

364903 GEAR DIFFERENTIAL - LARGE VOLUME - SET 364940 STEEL DIFFERENTIAL BEVEL GEAR FOR LARGE VOLUME DIFF 40T

DRIVE SHAFT COVER CAPS

Lubricate the drive shaft connecting joint properly so the drive shaft turns freely. In the event that not enough grease is used, the connecting pin may lock and may even, in extreme situations, push through the drive shaft cover cap.

CENTRAL DRIVE SHAFT (108 mm)

➋

➌

➊

DRIVE SHAFT COLLAR

#365470 COMPOSITE INCLUDED #365471-K ALU - BLACK OPTION

#106210 HUDY GRAPHITE GREASE #106213 HUDY JOINT GREASE - OPTION

➍

#365471-O ALU - ORANGE OPTION

Page 9

2. REAR CENTRAL TRANSMISSION

902306

SH M3x6

940510

BB 5x10x4

940815

BB 8x14x4

981208

P 2x8

902310

SH M3x10

DETAIL

IMPORTANT

REAR BLOCK

Bearing with BLUE

DETAIL

rubber covers

➌

OIL

5x10x4mm

Bearing Oil (HUDY #106230)

NOTE ORIENTATION

Bearing Oil

➍

➊

(HUDY #106230)

OIL

8x14x4mm

THREAD LOCK

➋

➎

XRAY BALL-BEARING

#359050 5x10x4 GREASE OPTION

GRAPHITE GREASE

(HUDY #106210)

➏

#940510 5x10x4 OIL INCLUDED #940814 8x14x4 GREASE OPTION #940815 8x14x4 OIL INCLUDED

IMPORTANT

NOTE ORIENTATION

902310

SH M3x10

ALTERNATIVE 1

Rear shock tower mounted from the FRONT

INITIAL SETTING

#363084 XB4 ALU REAR SHOCK TOWER 3.0MM - V2

Follow the TECH TIP on page 5

Cut the edge on both sides

REAR DIFF 10.000 cSt

ALTERNATIVE 2

Rear shock tower mounted from the REAR

to prepare graphite parts

Page 10

2. FRONT CENTRAL TRANSMISSION

325324

980210

365442

365230

981208

365470

XRAY BALL-BEARING

#359050 5x10x4 GREASE OPTION #940510 5x10x4 OIL INCLUDED #940814 8x14x4 GREASE OPTION #940815 8x14x4 OIL INCLUDED

DRIVE SHAFT COLLAR

#365470 COMPOSITE INCLUDED #365471-K ALU - BLACK OPTION #365471-O ALU - ORANGE OPTION

940510

362004

940815

#362085 XB4 ALU FRONT SHOCK TOWER 3.0MM

902306

365126

MARKED “F“

364903+364940

362004

362083

902310

DETAIL

IMPORTANT

FRONT BLOCK

BAG

980210

P 2x10

325324 DRIVE SHAFT 75MM WITH 2.5MM PIN - HUDY SPRING STEEL™ 362004 DIFF BULKHEAD BLOCK SET FRONT - NARROW 362083 GRAPHITE SHOCK TOWER FRONT 3.5MM 365126 STEEL BEVEL DRIVE GEAR - CNC-MACHINED - 16T 365230 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 365442 CENTRAL SHAFT UNIVERSAL JOINT 365470 COMPOSITE DRIVE SHAFT SAFETY COLLAR - V2 (3)

902306 HEX SCREW SH M3x6 (10)

DRIVE SHAFT COVER CAPS

CENTRAL DRIVE SHAFT (75mm)

➋

902310 HEX SCREW SH M3x10 (10) 940510 BALL-BEARING 5x10x4 RUBBER SEALED - OIL (2) 940815 BALL-BEARING 8x14x4 RUBBER SEALED - OIL (2) 980210 PIN 2x10 (10) 981208 PIN 2x8 (10)

364903 GEAR DIFFERENTIAL - LARGE VOLUME - SET 364940 STEEL DIFFERENTIAL BEVEL GEAR FOR LARGE VOLUME DIFF 40T

➌

➊

➍

#106210 HUDY GRAPHITE GREASE #106213 HUDY JOINT GREASE - OPTION

DRIVE SHAFT COLLAR

#365470 COMPOSITE INCLUDED #365471-K ALU - BLACK OPTION #365471-O ALU - ORANGE OPTION

Page 11

2. FRONT CENTRAL TRANSMISSION

902306

SH M3x6

940510

BB 5x10x4

940815

BB 8x14x4

981208

P 2x8

DETAIL

➍

IMPORTANT

FRONT BLOCK

Bearing with BLUE rubber covers

Bearing Oil

OIL

(HUDY #106230)

5x10x4mm

➊

XRAY BALL-BEARING

#359050 5x10x4 GREASE OPTION #940510 5x10x4 OIL INCLUDED #940814 8x14x4 GREASE OPTION #940815 8x14x4 OIL INCLUDED

Bearing Oil

(HUDY #106230)

OIL

8x14x4mm

➋

➌

DETAIL

NOTE ORIENTATION

THREAD LOCK

➎

GRAPHITE GREASE (HUDY #106210)

902310

SH M3x10

902310

SH M3x10

NOTE ORIENTATION

FRONT DIFF 10.000 cSt

NOTE ORIENTATION

Follow the TECH TIP on page 5

to prepare graphite parts

#362085 XB4 ALU FRONT SHOCK TOWER 3.0MM

Page 12

3. REAR SUSPENSION

903312

362315

363324

367210

363122-H

362315

901304

362005

901303

303431-K

303454

901308

303454

#363314 ALU LOWER SUSP. HOLDER 3° REAR-FRONT NARROW - 7075 T6

902308

363112-H

363112-H 363122-H

362478

363315

903312

Remove the 3x6.5x2mm shim from each rear arm.

SHORT REAR SUSPENSION ARM

ANTI-ROLL BARS

#362470 1.0mm #362471 1.1mm #362472 1.2mm #362473 1.3mm #362474 1.4mm

3°

1-DOT

#362476 1.6mm #362478 1.8mm #362480 2.0mm

OPTION OPTION OPTION OPTION OPTION OPTION INCLUDED OPTION

#363112-H RIGHT HARD INCLUDED #363122-H LEFT HARD INCLUDED #363112-G RIGHT GRAPHITE OPTION #363122-G LEFT GRAPHITE OPTION

LONG REAR SUSPENSION ARM

#363113-H RIGHT HARD OPTION #363123-H LEFT HARD OPTION #363113-G RIGHT GRAPHITE OPTION #363123-G LEFT GRAPHITE OPTION

BAG

303431-K ALU 4.9MM BALL END - BLACK (2) 303454 BALL JOINT 4.9MM - OPEN (4) 362005 DIFF BULKHEAD BLOCK SET REAR - NARROW 362315 ECCENTRIC BUSHING SET (2) 362478 ANTI-ROLL BAR 1.8 MM 363112-H COMPOSITE SUSPENSION ARM REAR LOWER RIGHT - HARD 363122-H COMPOSITE SUSPENSION ARM REAR LOWER LEFT - HARD 363315 ALU LOWER SUSP. HOLDER 1° REAR-FRONT - NARROW - 7075 T6 363324 ALU LOWER SUSP. HOLDER REAR-REAR - NARROW - 7075 T6 367210 SUSPENSION PIVOT PIN (2)

901303 HEX SCREW SB M3x3 (10) 901304 HEX SCREW SB M3x4 (10) 901308 HEX SCREW SB M3x8 (10) 902308 HEX SCREW SH M3x8 (10) 903312 HEX SCREW SFH M3x12 (10))

Page 13

3. REAR SUSPENSION

From Rear Arm

SHIM 3x6.5x2

903312

SFH M3x12

DETAIL

IMPORTANT

REAR BLOCK

Composite eccentric bushings

1°

INITIAL SETTING

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

Arm Reamer 3.0mm

For SHORT arms use only OUTER

positions.

1°

For SHORT arms do not use INNER

positions.

0.5°

#363314 ALU LOWER SUSP. HOLDER 3° REAR-FRONT NARROW - 7075 T6

➍

➊

(HUDY #107633)

SHORT REAR SUSPENSION ARM

#363112-H RIGHT HARD INCLUDED #363122-H LEFT HARD INCLUDED #363112-G RIGHT GRAPHITE OPTION #363122-G LEFT GRAPHITE OPTION

3°

1-DOT

Marked “L”

➌

RR 1°

➋

2mm from rear arm

Marked “R”

2mm from rear arm

➌

➊

➍

Composite eccentric bushings

0.5°

1°

INITIAL SETTING

For LONG arms use only INNER

positions.

0.5°

1°

For LONG arms do not use OUTER

positions.

LONG REAR SUSPENSION ARM

#363113-H RIGHT HARD OPTION #363123-H LEFT HARD OPTION #363113-G RIGHT GRAPHITE OPTION #363123-G LEFT GRAPHITE OPTION

DETAIL

Check for free movement

TOE-IN

ANTI-SQUAT

ROLL CENTER

TRACK-WIDTH

ECCENTRIC BUSHINGS HAVE TWO DIFFERENT OFFSETS FROM THE CENTER.

Middle position = 0.5° or 0.375mm from center.

Outer position = 1° or 0.75mm from center.

The XRAY rear alu lower suspension holders provide great 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 Set-up Book (#209100).

ANTI-SQUAT ROLL CENTER TRACK-WIDTH TOE-IN

RR RR RR RRRF RF

=2°

=3°

=1°

=3°

=2°

The tables describe the amounts of adjustment using the center and outside positions of the eccentric bushings.

=4°

The middle position eccentric bushings allow for finer adjustment increments.

=1°

=+0.75mm

0mm

=-0.75mm

The track-width is directly influenced by the size of the wheels and tires used.

=2°

=0°

=+1.5mm

0mm

=-1.5mm

RF(°) (mm) (mm)

(°)

=1°

=2°

=0°

=2°

=1°

=-1°

=2°

=3°

=1°

Page 14

3. REAR SUSPENSION

L=R

901308

SB M3x8

901303

SB M3x3

901304

SB M3x4

902308

SH M3x8

ANTI-ROLL BARS

#362470 1.0mm #362471 1.1mm #362472 1.2mm #362473 1.3mm #362474 1.4mm #362476 1.6mm #362478 1.8mm #362480 2.0mm

OPTION OPTION OPTION OPTION OPTION OPTION INCLUDED OPTION

4mm

STEP DETAIL

L=R

DETAIL

1.5mm

➌

DETAIL

0mm

3x3mm

➌

➋

Step check for free movement

➊

3x4mm

Step

➊

Loosen the 3x4 setscrew if the anti-roll bar does not turn freely

3x8mm

DETAILDETAIL

ANTI-ROLL BAR

Page 15

903312

3. FRONT SUSPENSION

362315

362322

303454

901308

303454

362112-H

901303

303431-K

367210

362004

901304

902308

362112-H

362478

362315

903312

361201

362312

902308

ANTI-ROLL BARS

#362470 1.0mm #362471 1.1mm #362472 1.2mm #362473 1.3mm #362474 1.4mm #362476 1.6mm #362478 1.8mm #362480 2.0mm

BAG

OPTION OPTION OPTION OPTION OPTION OPTION INCLUDED OPTION

303431-K ALU 4.9MM BALL END - BLACK (2) 303454 BALL JOINT 4.9MM - OPEN (4) 361201 COMPOSITE FRONT BUMPER - ONE HOLE 362004 DIFF BULKHEAD BLOCK SET FRONT - NARROW 362112-H COMPOSITE SUSPENSION ARM FRONT LOWER - HARD 362312 ALU LOWER SUSP. HOLDER FRONT-FRONT - NARROW - 7075 T6 362315 ECCENTRIC BUSHING SET (2) 362322 ALU LOWER SUSP. HOLDER FRONT-REAR - NARROW - 7075 T6 362478 ANTI-ROLL BAR 1.8 MM 367210 SUSPENSION PIVOT PIN (2)

SHORT FRONT SUSPENSION ARM

#362112 MEDIUM OPTION #362112-H HARD INCLUDED #362112-G GRAPHITE OPTION

LONG FRONT SUSPENSION ARM

#362113-H HARD OPTION #362113-G GRAPHITE OPTION

Remove the 3x6.5x2mm shim from each front arm.

901303 HEX SCREW SB M3x3 (10) 901304 HEX SCREW SB M3x4 (10) 901308 HEX SCREW SB M3x8 (10) 902308 HEX SCREW SH M3x8 (10) 903312 HEX SCREW SFH M3x12 (10))

Page 16

3. FRONT SUSPENSION

From Front Arm

SHIM 3x6.5x2

903312

SFH M3x12

➍

➌

➊

Composite eccentric bushings

0.5°

1°

INITIAL SETTING

DETAIL

IMPORTANT

FRONT BLOCK

Check for free movement

➋

2mm from front arm

➊

➌

➍

Composite eccentric bushings

0.5°

1°

INITIAL SETTING

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

Arm Reamer 3.0mm

(HUDY #107633)

For SHORT arms use only OUTER

positions.

0.5°

1°

For SHORT arms do not use INNER

SHORT FRONT SUSPENSION ARM

#362112 MEDIUM OPTION #362112-H HARD INCLUDED #362112-G GRAPHITE OPTION

positions.

L=R

FRONT ARM

For LONG arms use only INNER

positions.

0.5°

1°

LONG FRONT SUSPENSION ARM

#362113-H HARD OPTION #362113-G GRAPHITE OPTION

For LONG arms do not use OUTER

positions.

KICK UP

ROLL CENTER

TRACK-WIDTH

ECCENTRIC BUSHINGS HAVE TWO DIFFERENT OFFSETS FROM THE CENTER.

Middle position = 0.5° or 0.375mm from center.

Outer position = 1° or 0.75mm from center.

The XRAY alu front lower suspension holders provide great 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 Set-up Book (#209100).

KICK-UP

(°)

=7°

=6°

=8°

=6°

=5°

The tables describe the amounts of adjustment using the center and outside positions of the eccentric bushings.

=7°

The middle position eccentric bushings allow for finer adjustment increments.

(mm) (mm)

=+0.75mm

0mm

=-0.75mm

The track-width is directly influenced by the size of the wheels and tires used.

TRACK-WIDTHROLL CENTER

FFFF

FRFR

=+1.5mm

0mm

=-1.5mm

=8°

TOTAL CASTER=C-HUB CASTER+KICK UP

KICK-UP

C-HUB CASTER

6° 7° 8° 9° 10°

6° 12° 13° 14° 15° 16°

9° 15° 16° 17° 18° 19°

Caster is the angle between the steering pivot axis and the vertical plane. Caster is affected not only by the C-Hub caster, but also by the front kick-up angle relative to the flat chassis bottom. The table indicates how kick up angle effects total caster.

=7°

=9°

The XB4’s stock caster blocks are 9°, but 6° blocks are available as an option.

Page 17

901308

SB M3x8

902308

SH M3x8

3. FRONT SUSPENSION

L=R

DETAIL

1.5mm

4mm

901303

SB M3x3

901304

SB M3x4

902308

SH M3x8

3x3mm

➋

STEP DETAIL

➌

L=R

➌

0mm

DETAIL

➊

ANTI-ROLL BARS

#362470 1.0mm #362471 1.1mm #362472 1.2mm #362473 1.3mm #362474 1.4mm #362476 1.6mm #362478 1.8mm #362480 2.0mm

OPTION OPTION OPTION OPTION OPTION OPTION INCLUDED OPTION

3x4mm

3x8mm

ANTI-ROLL BAR

DETAIL

Step check for free movement

➊

Step

➊

Loosen the 3x4 setscrew if the anti-roll bar does not turn freely

DETAIL

Page 18

4. REAR TRANSMISSION

302665

362651

363520

362651

362280

306219

902205

902312

DRIVE SHAFT

#325323 71mm OPTION #325326 73mm OPTION #325324 75mm INCLUDED

303123

323354-H

365353

302665

323382

940513

322610

902254

980210

362316

908210

941014

960030

306219

902310

325324

365230

325340

#323381 ALU REAR HUB PLATE FOR MULTI ADJUSTABLE UPRIGHT

- SWISS 7075 T6

XRAY BALL-BEARING

#940512 5x12x4 OIL OPTION #941015 10x15x4 OIL OPTION #940513 5x12x4 GREASE INCLUDED #941014 10x15x4 GREASE INCLUDED

REAR UPRIGHTS

#323354-H COMPOSITE - H INCLUDED #323354-G COMPOSITE - G OPTION #323355 ALU OPTION

BAG

302665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4) 303123 ALU SHIM 3x6x2.0MM (10) 306219 CCOMPOSITE SET OF SERVO SHIMS (4) 322610 ADJ. TURNBUCKLE M3 L/R 55 MM - SPRING STEEL (2) 323354-H COMPOSITE UPRIGHT REAR - HARD 323382

ALU REAR HUB PLATE FOR MULTI ADJ. UPRIGHT - 1-HOLE 325324 REAR DRIVE SHAFT 75MM WITH 2.5MM PIN - SPRING STEEL™ 325340 REAR DRIVE AXLE LB - HUDY SPRING STEEL™ 327210 FRONT SUSPENSION PIVOT PIN (2) 362280 ALU CONICAL SHIM 3x6x2.0MM (10) 362316 OPEN ECCENTRIC BUSHING SET (2) 362651 BALL END 4.9MM WITH THREAD 8MM (2) 363520 REAR WING POST - V2 (2)

327210

ALU CONICAL SHIM

#362280 SILVER INCLUDED #362280-K BLACK OPTION #362280-O ORANGE OPTION

ALU NUTS M3

#296530-B BLUE OPTION #296530-K BLACK OPTION #296530-O ORANGE OPTION #960031 SILVER INCLUDED

#325341 REAR ADJUSTABLE DRIVE AXLE LB - HUDY SPRING STEEL™ #

325390 ALU SHIM 10x12x2MM (2)

WHEEL HUBS 12MM

#365360 +4.5mm - (6 slots) OPTION #365359 +3.75mm (5 slots) OPTION #365358 +3.0mm (4 slots) OPTION #365357 +2.25mm (3 slots) OPTION #365356 +1.5mm (2 slots) OPTION #365355 +0.75mm (1 slot) OPTION #365353 0mm (0 slots) INCLUDED #365354 -0.75mm (Lightw.) OPTION #365361 -1.25mm (Lightw.) OPTION

WHEEL HUBS 14MM

#365352 +0.75mm OPTION #365350 0mm OPTION #365351 -0.75mm OPTION

365230 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 365353 ALU WHEEL HUB 12MM (2)

902205 HEX SCREW SH M2x5 (10) 902254 HEX SCREW SH M2.5x4 (10) 902310 HEX SCREW SH M3x10 (10) 902312 HEX SCREW SH M3x12 (10) 940513 BALL-BEARING 5x12x4 RUBBER SEALED - GREASE (2) 941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2) 960030 NUT M3 (10) 980210 PIN 2x10 (10)

Page 19

940513

BB 5x12x4

4. REAR TRANSMISSION

L=R

DRIVE SHAFT (75mm)

➌

➋

941014

BB 10x15x4

980210

P 2x10

902205

SH M2x5

➑

➎

5x12x4mm

➐

DRIVE SHAFT

#325323 71mm OPTION #325326 73mm OPTION #325324 75mm INCLUDED

Use HUDY Ball-Bearing Grease

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

Bearing with BLACK rubber covers

➍

10x15x4mm

LONG AXLE

➊

➏

#106210 HUDY GRAPHITE GREASE #106213 HUDY JOINT GREASE - OPTION

WHEEL HUBS 12MM

WHEEL HUBS 14MM

#365352 +0.75mm OPTION #365350 0mm OPTION #365351 -0.75mm OPTION

OPTIONAL HEX HUB EFFECTS

Different offset hex hubs are used to increase or decrease the track-width.

LESS OFFSET Rear - more traction Front - more steering

MORE OFFSET

Rear - less traction Front - less steering

303123

SHIM 3x6x2

902312

SH M3x12

XRAY BALL-BEARING

#940512 5x12x4 OIL OPTION #941015 10x15x4 OIL OPTION #940513 5x12x4 GREASE INCLUDED #941014 10x15x4 GREASE INCLUDED

L=R

INITIAL SETTING

NOTE ORIENTATION

INITIAL SETTING

3x6x2mm

L=R

INITIAL SETTING

REAR UPRIGHTS

#323354-H HARD INCLUDED #323354-G GRAPHITE OPTION #323355 ALU OPTION

ALTERNATIVE ORIENTATION

#323381 ALU REAR HUB PLATE FOR MULTI ADJUSTABLE UPRIGHT - SWISS 7075 T6

Page 20

4. REAR TRANSMISSION

306219

SHIM 3x6x1

306219

SHIM 3x6x2

902254

SH M2.5x4

WHEELBASE

Ensure that the rear upright moves freely. If it does not move freely, use sandpaper to thin both wheelbase adjustment shims.

2mm

TIGHTEN

GENTLY

L=R

NOTE ORIENTATION

THREAD

1mm

TIGHTEN GENTLY

THREAD

DETAIL

8mm THREAD

Install the pivot balls with Professional Multi Tool (HUDY #183011)

Check for free

movement

LONGER WHEELBASE

Adjustment Shim IN FRONT OF HUB moves hub rearward.

ARM

SHORTER WHEELBASE

Adjustment Shim BEHIND HUB moves hub forward.

ARM

37mm

L=R

CAMBER

303123

SHIM 3x6x2

362280

CON. SHIM 3x6x2

960030

N M3

ROLL CENTER

902310

SH M3x10

8mm THREAD

L=R

CONICAL SHIM 2mm

2mm

L=R

NOTE ORIENTATION

ALU CONICAL SHIM

#362280 SILVER INCLUDED #362280-K BLACK OPTION #362280-O ORANGE OPTION

DETAIL

L=R

INITIAL SETTING

Page 21

4. FRONT TRANSMISSION

WHEEL HUBS 12MM

#365360 +4.5mm - (6 slots) OPTION #365359 +3.75mm (5 slots) OPTION #365358 +3.0mm (4 slots) OPTION #365357 +2.25mm (3 slots ) OPTION #365356 +1.5mm (2 slots) OPTION #365355 +0.75mm (1 slot) OPTION #365353 0mm (0 slots) INCLUDED #365354 -0.75mm (Lightw.) OPTION #365361 -1.25mm (Lightw.) OPTION

WHEEL HUBS 14MM

#365352 +0.75mm OPTION #365350 0mm OPTION #365351 -0.75mm OPTION

362651

362280

940513

365353

359050

XRAY BALL-BEARING

#940510 5x10x4 OIL OPTION #940512 5x12x4 OIL OPTION #359050 5x10x4 GREASE INCLUDED #940513 5x12x4 GREASE INCLUDED

DRIVE SHAFT COLLAR

#365470 COMPOSITE INCLUDED #365471-K ALU - BLACK OPTION #365471-O ALU - ORANGE OPTION

980210

365240

365470

362291

362652

902314

362210-H

365230

302665

362280

901306

902312

362610

365225

302665

362651

960030

ALU NUTS M3

#296530-B BLUE OPTION #296530-K BLACK OPTION #296530-O ORANGE OPTION #960031 SILVER INCLUDED

ALU CONICAL SHIM

#362280 SILVER INCLUDED #362280-K BLACK OPTION #362280-O ORANGE OPTION

STEERING BLOCK

#362250 MEDIUM OPTION #362250-H HARD INCLUDED #362250-G GRAPHITE OPTION

902205

C-HUBS

#362210 RIGHT 9° - M OPTION #362210-H RIGHT 9° - H INCLUDED #362210-G RIGHT 9° - G OPTION #362211 RIGHT 6° OPTION #362234 ALU RIGHT 12° OPTION #362220 LEFT 9° - M OPTION #362220-H LEFT 9° - H INCLUDED #362210-G LEFT 9° - G OPTION #362221 LEFT 6° OPTION #362244 ALU LEFT 12° OPTION

BAG

302665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4) 362210-H COMPOSITE C-HUB 9° DEG. RIGHT - HARD 362220-H COMPOSITE C-HUB 9° DEG. LEFT - HARD 362250-H COMPOSITE STEERING BLOCK - HARD 362280 ALU CONICAL SHIM 3x6x2.0MM (10) 362290 STEEL STEERING BUSHING - SHORT (2) 362291 STEEL STEERING BUSHING - LONG (2) 362610 ADJ. TURNBUCKLE M3 L/R 50 MM - SPRING STEEL (2) 362651 BALL END 4.9MM WITH THREAD 8MM (2) 362652 BALL END 4.9MM WITH THREAD 10MM (2) 365225 FRONT DRIVE SHAFT 83MM WITH 2.5MM PIN - HUDY SPRING STEEL™ 365230 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 365240 FRONT DRIVE AXLE - HUDY SPRING STEEL™

362290

362250-H

367220

362220-H

#365201 ECS FRONT DRIVE SHAFT 81mm (2.5mm PIN)

- HUDY SPRING STEEL™

#365202 ECS FRONT DRIVE SHAFT 83mm (2.5mm PIN)

- HUDY SPRING STEEL™

#365222 CVD FRONT DRIVE SHAFT 81mm (2.5mm PIN)

- HUDY SPRING STEEL™

365353 ALU WHEEL HUB 12MM (2) 365470 COMPOSITE DRIVE SHAFT SAFETY COLLAR (3) 367220 FRONT ARM PIVOT PIN (2)

359050 BALL-BEARING 5x10x4 STEEL SEALED - GREASE (2) 901306 HEX SCREW SB M3x6 (10) 902205 HEX SCREW SH M2x5 (10) 902312 HEX SCREW SH M3x12 (10) 902314 HEX SCREW SH M3x14 (10) 940513 BALL-BEARING 5x12x4 RUBBER SEALED - GREASE (2) 960030 NUT M3 (10) 980210 PIN 2x10 (10)

Page 22

4. FRONT TRANSMISSION

L=R

980210

P 2x10

DRIVE SHAFT (83mm)

#365201 ECS FRONT DRIVE SHAFT 81mm (2.5mm PIN)

- HUDY SPRING STEEL™

359050

BB 5x10x4

940513

BB 5x12x4

902205

SH M2x5

980210

P 2x10

➍

Use HUDY Ball-Bearing Grease

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

L=R

➊

➌

➋

SHORT AXLE

5x12x4mm

➌

➋

➊

#365202

ECS FRONT DRIVE SHAFT 83mm (2.5mm PIN) #106210 HUDY GRAPHITE GREASE #106213 HUDY JOINT GREASE - OPTION

- HUDY SPRING STEEL™

#365222

CVD FRONT DRIVE SHAFT 81mm (2.5mm PIN)

- HUDY SPRING STEEL™

XRAY BALL-BEARING

#940510 5x10x4 OIL OPTION #940512 5x12x4 OIL OPTION #359050 5x10x4 GREASE INCLUDED

5x10x4mm

#940513 5x12x4 GREASE INCLUDED

Bearing with STEEL covers

WHEEL HUBS 12MM

#365360 +4.5mm - (6 slots) OPTION #365359 +3.75mm (5 slots) OPTION #365358 +3.0mm (4 slots) OPTION #365357 +2.25mm (3 slots ) OPTION #365356 +1.5mm (2 slots) OPTION #365355 +0.75mm (1 slot) OPTION #365353 0mm (0 slots) INCLUDED #365354 -0.75mm (Lightw.) OPTION

OPTIONAL HEX HUB EFFECTS

Different off-set hex hubs are used to increase or decrease the track-width.

LESS OFF-SET Rear - more traction Front - more steering

MORE OFF-SET

Rear - less traction Front - less steering

#365361 -1.25mm (Lightw.) OPTION

362280

CON. SHIM 3x6x2

902312

SH M3x12

902314

SH M3x14

CASTER

ROLL CENTER

IMPORTANT

Be sure to use the shorter screw with shorter bushing and longer screw with longer bushing.

Longer

➌

screw

Shorter screw

➌

Longer

➊

➋

Shorter

➊

Steel steering bushings allow roll-center adjustment.

IMPORTANT

When inserting the bushings, make sure that bushings are inserted equally on both right and left hub to give the same roll center position.

DETAIL

INITIAL POSITION

LOWER ROLL CENTER

TOP = LONGER bushing & 3x14 screw BOTTOM = SHORTER bushing & 3x12 screw

Recommended for rough tracks to improve stability.

HIGHER ROLL CENTER

TOP = SHORTER bushing & 3x12 screw BOTTOM = LONGER bushing & 3x14 screw

Recommended for smooth tracks to gain more steering.

8mm THREAD

NOTE ORIENTATION

CONICAL SHIM 3x6x2mm

Page 23

4. FRONT TRANSMISSION

901306

SB M3x6

L=R

DO NOT OVERTIGHTEN

9mm 20mm

1:1

NOTE ORIENTATION

Check for free

movement

➋

SHORT

ARM REAMER

(HUDY #107633)

L=R

If the C-hub does not move freely, use a HUDY Arm

LONG

➊

Reamer to resize the hole.

CAMBER

362280

CON. SHIM 3x6x2

960030

N M3

L=R

CONICAL SHIM 2mm

10mm

THREAD

NOTE

ORIENTATION

10mm THREAD

THREAD

8mm THREAD

8mm

THREAD

Install the pivot balls with Professional Multi Tool (HUDY #183011)

NOTE

ORIENTATION

32.5mm

L=R

ALU CONICAL SHIM

#362280 SILVER INCLUDED #362280-K BLACK OPTION #362280-O ORANGE OPTION

ROLL CENTER

DETAIL

INITIAL SETTING

ALU NUTS M3

#296530-B BLUE OPTION #296530-K BLACK OPTION #296530-O ORANGE OPTION #960031 SILVER INCLUDED

Page 24

4. FRONT & REAR ASSEMBLY

902316

902310

361280

361178

902308

361298

902312

361296

361320

361182

960030

#361295 COMPOSITE CHASSIS BRACE REAR - MEDIUM

#361179 BRASS CHASSIS BRACE REAR (40g)

#361294 COMPOSITE CHASSIS BRACE FRONT - MEDIUM

361269-H

903316

903312

903314

903310

361297

903308

903310

960030

903310

361269-H

903310

903316

#361269-M COMPOSITE CHASSIS SIDE GUARDS L+R - MEDIUM

361107

#361108 ALU CHASSIS - SWISS 7075 T6 (2.5MM)

903310

ALU NUTS M3

#296530-B BLUE OPTION #296530-K BLACK OPTION #296530-O ORANGE OPTION #960031 SILVER INCLUDED

BAG

361178 GRAPHITE CHASSIS BRACE UPPER DECK 2.0MM 361182 COMPOSITE REAR LOWER BRACE 361280 XB4’20 GRAPHITE REAR CHASSIS PLATE 2MM - NARROW 361296 COMPOSITE CHASSIS BRACE FRONT - HARD 361297 COMPOSITE CHASSIS BRACE REAR - HARD 361298 GRAPHITE CHASSIS WIRE COVER 2.0MM - V2 361320 BODY MOUNT, BATTERY MOUNT - V2 & WING SHIM (2)

902308 HEX SCREW SH M3x8 (10) 902310 HEX SCREW SH M3x10 (10) 902312 HEX SCREW SH M3x12 (10)

902316 HEX SCREW SH M3x16 (10) 903308 HEX SCREW SFH M3x8 (10) 903310 HEX SCREW SFH M3x10 (10) 903312 HEX SCREW SFH M3x12 (10) 903314 HEX SCREW SFH M3x14 (10) 903316 HEX SCREW SFH M3x16 (10) 960030 NUT M3 (10)

361107 ALU CHASSIS - SWISS 7075 T6 (2MM) 361269-H COMPOSITE CHASSIS SIDE GUARDS L+R - HARD

Page 25

903308

SFH M3x8

903310

SFH M3x10

903314

SFH M3x14

4. FRONT & REAR ASSEMBLY

#361269-M COMPOSITE CHASSIS SIDE GUARDS L+R (MEDIUM)

The medium side guards increase chassis flex and are recommended for low-traction tracks.

#361108 ALU CHASSIS - SWISS 7075 T6 (2.5MM)

960030

N M3

CHASSIS FLEX

902308

SH M3x8

902310

SH M3x10

903310

SFH M3x10

3x14mm

3x10mm

3x8mm

3x10mm

NOTE

ORIENTATION

ALU NUTS M3

#296530-B BLUE OPTION #296530-K BLACK OPTION #296530-O ORANGE OPTION #960031 SILVER INCLUDED

3x8mm

Do not fully tighten the screws during assembly. Fully tighten the screws only after both front and rear suspension assemblies are mounted to the chassis.

#361179 BRASS CHASSIS BRACE REAR (40g)

3x10mm

#361295 COMPOSITE CHASSIS BRACE REAR - MEDIUM

#361294 COMPOSITE CHASSIS BRACE FRONT - MEDIUM

Page 26

4. FRONT & REAR ASSEMBLY

3x16mm

902316

SH M3x16

903310

SFH M3x10

903316

SFH M3x16

After you mount the rear suspension assembly to the chassis, fully tighten all 4 screws that were previously left untightened (page 25, step 2).

902312

SH M3x12

903310

SFH M3x10

3x16mm

SFH

3x10mm

SFH

3x12mm

DETAIL

903316

SFH M3x16

After you mount the front suspension assembly to the chassis, fully tighten all 3 screws that were previously left untightened (page 25, step 2).

3x10mm

3x16mm

Page 27

5. STEERING

302665

352610

362280

302665

362652

362571

902310

903308

302665

352610

302665

361322

362581

303127-K

940508

362540

362290

ALU CONICAL SHIM

#362280 SILVER INCLUDED #362280-K BLACK OPTION #362280-O ORANGE OPTION

303127-K

940508

362510

940508

362551

903308

902310

362510

332561

362290

970100

940508

362551

903308

332540

362510

902310

#362510-G COMPOSITE SERVO SAVER - GRAPHITE

#362574 ALU STEERING PLATE 2-HOLE

#362571-G COMPOSITE STEERING PLATE - GRAHITE

BAG

302665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4) 303127-K ALU SHIM 3x6x4.0MM - BLACK (10) 332540 ALU SERVO SAVER ADJUSTABLE NUT 332561 SERVO SAVER SPRING C=14 352610 ADJ. TURNBUCKLE M3 L/R 45MM - SPRING STEEL (2) 361322 BODY MOUNT - EXTRA-SHORT 362280 ALU CONICAL SHIM 3x6x2.0MM (10) 362290 STEEL STEERING BUSHING - SHORT (2) 362510 COMPOSITE SERVO SAVER 362540 ALU SERVO SAVER MAIN SHAFT 362551 SERVO SAVER PIVOT SHAFT +2MM (2)

362571 COMPOSITE STEERING PLATE 362581 STEERING BRACE 2.0MM GRAPHITE 362652 BALL END 4.9MM WITH THREAD 10MM (2)

902310 HEX SCREW SH M3x10 (10) 903308 HEX SCREW SFH M3x8 (10) 940508 BALL-BEARING 5x8x2.5 RUBBER SEALED - OIL (2) 970100 O-RING 10 x 1.5 (10)

Page 28

5. STEERING

970100

O 10x1.5

SERVO SAVER

902310

SH M3x10

NOTE ORIENTATION

THREAD LOCK

CLEANER

OIL

INITIAL PRELOAD SETTING

DETAIL

STEERING PLATE

#362571 #362571-G #362574

3~4mm

HARD INCLUDED GRAPHITE OPTION ALU OPTION

902310

SH M3x10

303127-K

SHIM 3x6x4

903308

SFH M3x8

Increases steering precision and predictability and is recommended for use in high-traction conditions. Includes extra Ackermann positions for very precise steering adjustment.

NOTE ORIENTATION

4mm

Bearing Oil (HUDY #106230)

4mm

Bearing Oil

(HUDY #106230)

940508

BB 5x8x2.5

Page 29

903308

SFH M3x8

5. STEERING

362280

CON. SHIM 3x6x2

L=R

THREAD

10mm Thread

CONICAL SHIM 2mm

Install the pivot balls with Professional Multi Tool (HUDY #183011)

NOTE ORIENTATION

DETAIL

31mm

NOTE ORIENTATION Adjustment block towards outside

view

INITIAL POSITION

ACKERMANN BUMP STEER

TOE-IN

Adjustment block towards outside

NOTE ORIENTATION

ALU CONICAL SHIM

#362280 SILVER INCLUDED #362280-K BLACK OPTION #362280-O ORANGE OPTION

DETAIL

Check for free movement

Check for free

movement

Page 30

6. SLIPPER CLUTCH ASSEMBLY

941015

980212

981208

903308

364023

903308

364121

364113

365881

902318

364013

364131

364140

364131

364120

364131

364182

901304

902306

361320

902308

361188

364172

361176

364190

941015

902308

902304

#364904 GEAR CENTER DIFFERENTIAL - SET

#364024 ALU

CENTRAL BULKHEAD

SLIPPER CLUTCH SPUR GEARS

#365875 75T / 48 OPTION #365878 78T / 48 OPTION #365881 81T / 48 INCLUDED #365884 84T / 48 OPTION #365887 87T / 48 OPTION

BAG

901304

SB M3x4

980212

P 2x11.6

902304

SH M3x4

361176 XB4’20 GRAPHITE CENTER UPPER DECK 2MM 361188 XB4’20 GRAPHITE REAR UPPER BRACE 2MM 361320 BODY MOUNT, BATTERY MOUNT - V2 & WING SHIM (2) 364013 ALU MOTOR BULKHEAD - LOWER 364023 COMPOSITE CENTRAL BULKHEAD - LOWER 364113 3-PAD SLIPPER CLUTCH SHAFT - NARROW - HUDY SPRING STEEL™ 364120 ALU SLIPPER CLUTCH PLATE - 7075 T6 BLACK HARD COATED 364121 ALU 3-PAD SLIPPER CLUTCH PLATE WITH ADAPTER - 7075 T6 HARD COATED 364131 SLIPPER CLUTCH PAD “SLS” (2) 364140 ALU 3-PAD SLIPPER CLUTCH PLATE DISC - 7075 T6 HARD COATED 364172 SLIPPER CLUTCH OUTDRIVE ADAPTER - NARROW - HUDY SPRING STEEL™ 364182 SLIPPER CLUTCH SPRING C=46 - BLACK 364190 ALU SLIPPER CLUTCH NUT - V2

➊

➋

➌

➍

NOTE ORIENTATION

365881 COMPOSITE SLIPPER CLUTCH SPUR GEAR 81T / 48 - GRAPHITE

901304 HEX SCREW SB M3x4 (10) 902304 HEX SCREW SH M3x4 (10) 902306 HEX SCREW SH M3x6 (10) 902308 HEX SCREW SH M3x8 (10) 902318 HEX SCREW SH M3x18 (10) 903308 HEX SCREW SFH M3x8 (10) 941015 BALL-BEARING 10x15x4 RUBBER SEALED - OIL (2) 980212 PIN 2x11.6 (10) 981208 PIN 2x8 (10)

➌

➊

➋

➍

➊

➋

➌

➎

VERY IMPORTANT!

It is very important that you NEVER FULLY TIGHTEN the Slipper Clutch. Overtightening the Slipper Clutch may result in breakage of the diff crown gear and pinion gear.

➍

981208

P 2x8

➊

➋

➌

SLIPPER ADJUSTMENT:

0~0.5mm

The Slipper Clutch is easily adjusted by the set-screw in the bushing. The more the spring is tightened (bushing moved more inwards), the more the Slipper Clutch is tightened.

INITIAL INSTALLATION POSITION SHOWN

Detailed information on slipper adjustment can be found on page 32.

Page 31

6. SLIPPER CLUTCH ASSEMBLY

902318

SH M3x18

903308

SFH M3x8

#364024 ALU

CENTRAL BULKHEAD

TIGHTEN GENTLY

NOTE ORIENTATION

941015

BB 10x15x4

OIL

BEARING OIL

OIL

(HUDY #106230)

#364904 GEAR CENTER DIFFERENTIAL - SET

Increases on-power steering for nearly all types of tracks and is ideal for both carpet and clay tracks. We recommend #106692 HUDY Premium Silicone Oil 1 000 000 cSt - 50ml.

Page 32

6. SLIPPER CLUTCH ASSEMBLY

SLIPPER CLUTCH ADJUSTMENT

The Slipper Clutch can be adjusted by loosening the set-screw and then, while keeping the tool inside of the set-screw, rotating the spur gear by hand as indicated in the drawing.

To LOOSEN: Rotate the spur gear in the counterclockwise (CCW) direction. To TIGHTEN: Rotate the spur gear in the clockwise (CW) direction.

➋ ADJUST

TIGHTEN SLIPPER CLUTCH

902308

SH M3x8

LOOSEN SLIPPER CLUTCH

➊

Untighten set-screw

Adjust

➋

Tighten set-screw

➌

Allen 1.5mm

902306

SH M3x6

902308

SH M3x8

3x6mm

3x8mm

Page 33

7. SHOCK ABSORBERS

PISTONS DETAIL

holes

(1.6mm)

2 holes

(1.7mm)

0 holes (Create custom holes)

(0mm - use required drill pin)

363240

368010

368031

902205

970120

306219 (OPTION)

368260

FRONT SPRINGS

#368191 LINEAR 42mm 1 DOTS OPTION #368192 LINEAR 42mm 2 DOTS OPTION #368193 LINEAR 42mm 3 DOTS OPTION #368194 LINEAR 42mm 4 DOTS OPTION #368195 LINEAR 42mm 5 DOTS OPTION

REAR SPRINGS

#368292 LINEAR 57mm 2 DOTS OPTION #368293 LINEAR 57mm 3 DOTS OPTION #368294 LINEAR 57mm 4 DOTS OPTION

965023

368160

368220

368120

368031

970080

972031

368140

368293

2 holes

(1.6mm)

970140

2 holes

(1.7mm)

368040

Thin Shim

368194

0 holes (Create custom holes)

(0mm - use required drill pin)

These pistons can NOT be used in shocks without making the custom holes

by yourselves.

368042

368010

Thick ShimThick Shim

352460

FRONT SPRINGS

#368174 PROGRESS. 45mm 2 STRIPES OPTION #368175 PROGRESS. 40mm 3 DOTS OPTION #368182 LINEAR 45mm 1 STRIPE & 3 DOTS OPTION #368183 LINEAR 45mm 1 DOT OPTION #368184 LINEAR 45mm 2 DOTS OPTION #368185 LINEAR 45mm 3 DOTS INCLUDED #368186 LINEAR 45mm 4 DOTS OPTION

REAR SPRINGS

#368273 PROGRESS. 60mm 2 STRIPES OPTION #368275 PROGRESS. 55mm 2 DOTS OPTION #368283 LINEAR 63mm 1 STRIPE & 3 DOTS OPTION #368284 LINEAR 60mm 1 DOT OPTION #368285 LINEAR 60mm 2 DOTS INCLUDED #368286 LINEAR 60mm 3 DOTS OPTION #368287 LINEAR 60mm 4 DOTS OPTION

BAG

306219 COMPOSITE SET OF SERVO SHIMS (4) 352460 PIVOT BALL 5.8 - V3 (10) 363240 BALL UNIVERSAL 5.8MM WITH BACKSTOP (2) 368010 COMPOSITE SHOCK PARTS 368031 SHOCK PISTONS - COMPLETE SET - DERLIN - V2 368040 ALU SHOCK ADJUSTABLE NUT (2) 368042 COMPOSITE SHOCK BUSHING & SHIM FOR ALU CAP (2+2) 368100 FRONT SHOCK ABSORBERS COMPLETE SET (2) 368120 ALU FRONT SHOCK BODY - HARD COATED (2) 368140 ALU LOWER SHOCK BODY CAP (2) 368160 FRONT HARDENED SHOCK SHAFT (2) 368194 FRONT SPRING SET L=42MM (4 DOTS) (2) 368200 REAR SHOCK ABSORBERS COMPLETE SET (2) 368220 ALU REAR SHOCK BODY - HARD COATED (2) 368260 REAR HARDENED SHOCK SHAFT (2)

#368051 ALU SHOCK CAP-NUT WITH VENT HOLE (2)

#368021 ALU SHOCK SPRING RETAINING COLLAR (4)

368293 REAR SPRING SET L=57MM (3 DOTS) (2)

902205 HEX SCREW SH M2x5 (10) 965023 E-CLIP 2.3 (10) 970080 O-RING 8x1 (10) 970120 O-RING 12 x 1.0 (10) 970140 O-RING 14 x 1.5 (10) 972031 SILICONE O-RING 3x2.1 (10)

#104004 HUDY AIR VAC - VACUUM PUMP

- 1/10 OFF-ROAD

Page 34

7. SHOCK ABSORBERS

965023

C 2.3

970080

O 8x1

972031

O 3x2.1

SHOCK DAMPING

SHOCK PISTONS

INITIAL PISTON

SETTING

➌

2 holes (1.6mm)

2 holes (1.7mm)

➋

REAR - LONG SHOCK ROD

➊

FRONT - SHORT SHOCK ROD

➊

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

THICK Shim

O-ring

THIN Shim

O-ring

970140

O 14x1.5

#306219 DOWNSTOP SHIMS

THICKER shim used, GREATER downstop is achieved.

INITIAL SETTING

(0mm)

SHORT

SHOCK ROD

SHORT

SHOCK BODY

UP-STOP "C" SHIMS

INITIAL SETTING

1mm 2mm 3mm

FRONT SHOCKS

LONG

SHOCK ROD

IMPORTANT

Always use same shim thickness on right and left side to achieve same downstop.

INITIAL SETTING

(0mm)

LONG

SHOCK BODY

UP-STOP SHIM

REAR SHOCKS

DETAIL

970120

O 12x1

EXTREMELY

IMPORTANT

INCORRECT

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

CORRECT

Twist the shock rod through the lower shock body assembly.

0mm

2mm

INITIAL SETTING

24mm

29mm

Install the pivot balls with Professional Multi Tool (HUDY #183011)

Page 35

IMPORTANT

UP-STOP TRAVEL SETTINGS

It is very important to have properly set the up-stop travel to avoid damage to the drive shaft and diff outdrives.

To avoid collision of the drive shaft with diff outdrives use the up-stop travel shims to set-up the up-stop travel.

All these settings have influence on the up-stop travel:

- Length of arms (long/short)

- Length of drive shafts

- Shock positions

- Eccentric bushings in suspension holders

- Eccentric bushings in rear uprights

- Camber

7. SHOCK ABSORBERS

UP-STOP SHIM

UP-STOP TRAVEL

ENSURE NO COLLISION

DEFAULT SHOCK REBOUND SETTING 0% REBOUND

TIGHTEN FULLY

FRONT (SHORT) Oil 700cSt

REAR (LONG) Oil 500cSt

3~5x UP & DOWN

➊ ➋ ➌ ➍ ➎

Extend the shock shaft completely. Fill the shock body with the shock oil. For the FRONT shocks use 700cSt oil. For the REAR shocks use 500cSt oil.

902205

SH M2x5

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.

Gently place the shock cap onto the filled shock body and start to tighten the cup. Tighten the cap fully.

Gently push the shock shaft completely into the shock body. Excess oil will flow through the hole in the shock cap.

6x UP & DOWN

➏ ➐ ➑ ➒ ➓

Keep the shock shaft pushed in the shock body and insert the screw into the shock cap. Tighten gently.

SHORT FRONT SHOCKS

6x push the shaft up and down. Untighten the screw. Tighten the screw.

Short Springs

LONG REAR SHOCKS

2x2x

Long Springs

#368021 ALU SHOCK SPRING RETAINING COLLAR (4)

Gently push the shock shaft completely into the shock body. Excess oil will flow through the hole in the shock cap.

FRONT SHOCKS (SHORT)

REAR SHOCKS (LONG)

The rebound will be at approx. 0%

Page 36

8. FINAL ASSEMBLY

306208

903306

960030

368045

368200

903306

902306

960030

366220

107872 Velcro Tape

903308

361320

363510

306301

903310

903308

306310

903310

Receiver (NOT INCLUDED)

369705

Speed Controller

(NOT INCLUDED)

366050

LiPo Battery Pack (NOT INCLUDED)

Steering Servo (NOT INCLUDED)

961032

302665

362650

366160

902308

356200

366114

366115

902312

362290

962030

366142

903310

352610

Servo Screw

(NOT INCLUDED)

329913

BAG

309402

902312

Rear Tires (NOT INCLUDED)

Motor (NOT INCLUDED)

364090

902310

365718~38 (NOT INCLUDED)

107871 HUDY SELF-ADHESIVE FOAM STRIP (2) 107872 VELCRO TAPE WITH DOUBLE SIDED TAPE 8x500MM 302665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4) 306208 ALU SERVO MOUNT - BOTH SIDES THREADED 306301 ANTENNA MOUNT - THIN 309402 BODY CLIP FOR 6MM BODY POST (4) 352610 ADJ. TURNBUCKLE M3 L/R 45 MM - SPRING STEEL™ (2) 356200 BRAKE/THROTTLE ARMS & STEERING SERVO ARMS - SET 361320 BODY MOUNT, BATTERY MOUNT - V2 & WING SHIM (2) 362290 STEEL STEERING BUSHING - SHORT (2) 362650 BALL END 4.9MM WITH THREAD 6MM (2) 364090 ALU ECCENTRIC MOTOR BULKHEAD INSERT - V3 365718~38 ALU PINION GEAR HARD COATED 18~38T/48 (OPTION) 366050 COMPOSITE RADIO PLATE - V2 366114 COMPOSITE BATTERY STRAP - LONG 366115 COMPOSITE BATTERY STRAP - LONG XL 366142 COMPOSITE BATTERY HOLDER STAND (2) 366160 FOAM SPACER FOR BATTERY 366220 INDEPENDENT SERVO MOUNT - V2 - SET 368045 STEEL SCREW SHOCK PIVOT BALL WITH HEX (2)

369912

960240

Front Tires (NOT INCLUDED)

960030

368045

107871

902306 HEX SCREW SH M3x6 (10) 902308 HEX SCREW SH M3x8 (10) 902310 HEX SCREW SH M3x10 (10) 902312 HEX SCREW SH M3x12 (10) 902316 HEX SCREW SH M3x16 (10) 903306 HEX SCREW SFH M3x6 (10) 903308 HEX SCREW SFH M3x8 (10) 903310 HEX SCREW SFH M3x10 (10) 960030 NUT M3 (10) 961032 WASHER S 3.2 (10) 962030 WASHER S 3x6x0.3 (10) 960240 NUT M4 WITH SERRATED FLANGE (10)

368100 FRONT SHOCK ABSORBERS COMPLETE SET (2) 368200 REAR SHOCK ABSORBERS COMPLETE SET (2)

306310 ANTENNA (2) 363510 LEXAN REAR WING (2) 369705 XRAY XB4 BODY 369912 FRONT WHEEL AERODISK WITH 12MM HEX - WHITE (2) 329913 REAR WHEEL AERODISK WITH 12MM HEX - WHITE (2)

368100

902316

960030

Page 37

8. FINAL ASSEMBLY

902316

SH M3x16

960030

N M3

902312

SH M3x12

960030

N M3

➋

➊

➍

NOTE ORIENTATION

DETAIL

INITIAL POSITION

➌➌

ALU NUTS M3

➋

#296530-B BLUE OPTION

INITIAL POSITION

#296530-K BLACK OPTION #296530-O ORANGE OPTION

➊

➍

#960031 SILVER INCLUDED

NOTE

DETAIL

ORIENTATION

INITIAL POSITION

902306

SH M3x6

902308

SH M3x8

961032

SHIM S 3.2

SERVO LINK

Adjust servo link to fit your servo.

THREAD

3x6mm

➌

6mm THREAD

3x6mm

THREAD

Servo (NOT INCLUDED)

3x8mm

6mm THREAD

Install the pivot balls with Professional Multi Tool (HUDY #183011)

NOTE ORIENTATION

28mm

HUDY ALU SERVO HORNS

#293497 23T #293498 24T #293499 25T

HUDY CLAMP ALU SERVO HORNS

#293404 23T #293405 24T #293406 25T

For more in-corner steering and better steering response, aluminum servo horns may be used.

USE APPROPRIATE SERVO ARM:

Servo screw (NOT INCLUDED)

K H F

(23T) (24T) (25T)

Page 38

8. FINAL ASSEMBLY

903306

SFH M3x6

902310

SH M3x10

➋

Pinion

(NOT INCLUDED)

PINIONS

#365718 18T / 48P #365719 19T / 48P #365720 20T / 48P #365721 21T / 48P #365722 22T / 48P #365723 23T / 48P #365724 24T / 48P #365725 25T / 48P #365726 26T / 48P #365727 27T / 48P #365728 28T / 48P #365729 29T / 48P #365730 30T / 48P #365731 31T / 48P #365732 32T / 48P #365733 33T / 48P #365734 34T / 48P #365735 35T / 48P #365736 36T / 48P #365737 37T / 48P #365738 38T / 48P

NOTE ORIENTATION

➊

➊ Loosen the screw

➋ Insert motor into the bulkhead

➊

➋

➊

➊ Adjust gear mesh ➋ Tighten the screw

Adjust the motor so the pinion meshes with the spur gear properly. Make sure the gear mesh is not too tight.

There should be a small amount of play between the teeth of the pinion gear and the spur gear.

Page 39

903308

SFH M3x8

8. FINAL ASSEMBLY

Speed Controller (NOT INCLUDED)

Receiver (NOT INCLUDED)

903310

SFH M3x10

Double-sided Tape

HUDY #107875

(NOT INCLUDED)

CUT Self-adhesive Foam Strip (#107871 HUDY)

3x10mm

Feed the receiver wire into the antenna tube

3x8mm

Double-sided Tape

HUDY #107875

(NOT INCLUDED)

902312

SH M3x12

903310

SFH M3x10

962030

S 3x6x0.3

ALTERNATIVE 1

FORWARD WEIGHT BALANCE POSITION

(INITIAL SETTING)

➌ ➌

NOTE

ORIENTATION

➍ ➍

(INITIAL SETTING)

The foam battery spacer can be installed either in front of or behind the battery.

FRONT BATTERY POSITION: More traction on FRONT suspension, more steering, recommended for medium- and high-traction tracks.

REAR BATTERY POSITION: More traction on REAR suspension, more stable, recommended for medium - and low-traction tracks.

EXTRA-LONG BATTERY HOLDER (#366115)

➋

➊

ALTERNATIVE 2

REARWARD WEIGHT BALANCE POSITION

LONG BATTERY HOLDER (#366114)

➋

➊

Using the standard battery holder positions the battery to the REAR.

Page 40

8. FINAL ASSEMBLY

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. Before cutting and making holes on the WING, put the unpainted wing on the wing holders 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

➋

thoroughly.

➌

Mask all windows.

XRAY LEXAN BODY

#369703 0.75mm OPTION #369704 0.50mm OPTION #369705 0.75mm ALPHA INCLUDED #369706 0.50mm ALPHA OPTION

➍

Apply paint masks as appropriate.

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.

BODY REAMER (HUDY #107600)

WING CUTTING LINE OPTIONS

INITIAL POSITION

LESS TRACTION

MORE TRACTION

XRAY LEXAN REAR WING

#323510 1.0mm OPTION #323511 1.5mm OPTION #323513 1.0mm RANK OPTION #323517 1.0mm TEC OPTION #363510 1.0mm INCLUDED #363510 1.0mm OPTION #363511 1.5mm OPTION #363512 2.0mm OPTION

XRAY LEXAN CENTER FIN

#323515 1.0mm ZAP OPTION

Double-sided Velcro™ tape is used to seal the body against the side guards.

L=R

VELCRO™ TAPE WITH DOUBLE-SIDED TAPE

(Velcro™ tape - hook side) (Velcro™ tape - soft side)

Page 41

960240

N M4

8. FINAL ASSEMBLY

Rear wheel (WIDE)

#369912-M 4WD FRONT WHEEL AERODISK WITH 12MM HEX IFMAR - WHITE - M (2)

Front wheel (NARROW)

#329913-M 2WD/4WD REAR WHEEL AERODISK 12MM HEX IFMAR - WHITE - M (2

903308

SFH M3x8

OPTIONAL ALU WING SHIM

#293561 SILVER OPTION #293561-O ORANGE OPTION

FINAL ASSEMBLY VIEW

Page 42

MAINTENANCE

GEARING

cSt

TRACK SIZE

TIGHT

OPEN

TRACK TRACTION

HIGH

LOW

TRACK SURFACE

SMOOTH MEDIUM

MEDIUM

BUMPY

TRACK TYPE

HARD PACKED

BLUE GROOVE

CARPET

GRASS

CLAY

TRACK CONDITION

DRY DUSTY

WET

MUD

SHOCKS

ø1.7mm

ø1.6mm

SPRINGS

CUSTOM PISTONS

OIL

REBOUND

PISTONS

ø1.3mm

ø1.4mm

ø1.2mm

HOLES

SOFT DIRT

ASTRO TURF

HOLES

CASTER

ELECTRONICS LAYOUT

REARFRONT

MOTOR POSITION

REARFRONT

BATTERY POSITION

LOW SHORTSTD. SHORT

BATTERY SIZE

TIRES

BRAND

COMPOUND

INSERTS

WHEELS

RACE

TRACK

NAME

DATE

LAPS

BEST LAP TIME

FINAL POSITION

sec

PINION

SPUR GEAR

ANTI ROLL BAR

THICKNESS

ELECTRONICS

COMMENTS

MOTOR MOTOR

TIMING

SPEEDO

BATTERY

APPLIED

QUALIFYING POSITION

FRONT REAR

SHOCK TOWER

POSITION

FRONT REAR

SHOCK POSITION

SIDE GUARDS

MEDIUM HARD

REAR BRACE

MEDIUM HARD

GRAPHITE FOR

REAR BRACE

YES NO

BALL DIFF

GEAR DIFF

SLIPPER BALL DIFF

GEAR DIFF

DIFFERENTIAL TYPE

MIDDLE

SATELLITE GEARS

FRONT REAR

STEEL

COMPOSITE

STEEL STEEL

COMPOSITE

40T 41T 40T 41T

OIL

cSt

OIL

cSt

OIL

cSt

CASTER BLOCK

MEDIUM

HARD

GRAPHITE

ALU

ARM SHIM

SLIPPER

SLIPPER ADJUSTMENT

CROWN GEARCROWN GEAR

OUT

FRONT TOE

REAR TOE

CASTER

6°

9°

12°

CHASSIS FLEX

SCREW USED

SCREW NOT USED

BALANCE

FRONT CAMBER

REAR CAMBER

RIDE HEIGHT

#107720 GAUGE

RIDE HEIGHT

LENGTH

DOWNSTOP SHIM

UPSTOP SHIM

° °

SERVO SAVER

MATERIAL

TIGHT

MEDIUM

SOFT

STANDARD GRAPHITE

STANDARD

STEERING BRACE

UPPER PLATE

DOWNSTOP SHIM

LOWER SHOCK POSITION

STEERING BLOCK

MEDIUM

HARD

GRAPHITE

LONGER BUSHINGS

DOWN

#107701 SUPPORT BLOCKS

ALU

BRASS

ALU

BRASS

YES

1-DOT

3°

0.5°

1°

0.5°

1°

0.5°

1°

0.5°

1°

ROLL

CENTER

ECCENTRIC BUSHINGS

2 1

ALU STEERING PLATE

#362573

WING

1.0mm

THICKNESS

1.5mm

2.0mm

BUMP STEER SHIM

BODY

STANDARD

LIGHT

TYPE

35g

BALANCE

REAR UPRIGHT

ROLL ENTER

0.5°

1°

RAISING

GEARBOX

YES NO

OFFSET

WHEELBASE

DOWNSTOP

#107711 GAUGE

SHIM

OFFSET

UPRIGHT WHEELBASE SHIM

IN FRONT OF ARM

/mm

/slots

2 3 4

WING CUTTING LINE SIDE LINE

1 2 3 4 5

HIGHER

LOWER

MEDIUM

LONG SHORT

HARD

REAR ARMS

GRAPHITE

MEDIUM

LONG SHORT

HARD

FRONT ARMS

GRAPHITE

REARFRONT

DRIVE SHAFT

/mm

Lenght

DRIVE SHAFT

/mm

Lenght

CVD ECS

SHIM

/mm

HARD GRAPHITE ALU

#107711 GAUGE

SHOCK TOWER

ALU

GRAPHITE

ALU

GRAPHITE

CHASSIS

STANDARD

2.5mm

BUMP STEER

SHIM

HARD

GRAPHITE

STEER. PLATE

ALU

SHIM UNDER STEER. PLATE

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 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.

BEARING MAINTENANCE

Ball-bearings in an off-road car must be properly maintained for smooth operation and long lifespan.

The XB4 ball-bearings are degreased and are lubricated with HUDY Bearing Oil or HUDY Grease. The following procedures are recommended to clean all of the bearings in your off-road car. For highcompetition racing, we recommended doing this every 3-4 weeks, or before a major race.

➊ 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.

➋ Spray the seals with motor cleaner and blow dry with compressed air.

➌ Spray the bearing on both sides with motor cleaner.

➍ Spin the bearing while it is still wet to dislodge any particles with the cleaner.

➎ Spray the bearing on both sides again.

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.