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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. 

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. 

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.

CUSTOMER SUPPORT 

XRAY Europe

K Vystavisku 6992

91101 Trenčín

Slovakia, EUROPE

Phone: 421-32-7401100

Fax: 421-32-7401109

E-mail: [email protected]

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 [email protected]. 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

E-mail: [email protected]

FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT.

Summary of Contents for XT4

Page 1: ...I N S T R U C T I O N M A N U A L...

Page 2: ...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 edg...

Page 3: ...l 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 periodic...

Page 4: ...Apply grease Scale Ensure smooth non binding movement 1 1 DETAIL Apply cleaner ITEMS INCLUDED HUDY Premium Silicone Oils HUDY Premium Silicone Oils HUDY Premium Silicone Oils HUDY Premium Silicone Oi...

Page 5: ...w 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 optio...

Page 6: ...64961 GEAR DIFF OUTDRIVE ADAPTER FOR 2 5MM PIN HUDY SPRING STEEL 2 364990 COMPOSITE BEVEL GEAR BUSHING 2 903258 HEX SCREW SFH M2 5x8 10 941014 BALL BEARING 10x15x4 RUBBER SEALED GREASE 2 964031 WASHER...

Page 7: ...stability TIPS FOR DIFFERENTIALS REAR DIFERENTIAL FRONT DIFERENTIAL 107865 HUDY Ultimate Digital Pocket Scale 300g 0 01g Tighten the screws equally but do NOT tighten them completely Finish tightening...

Page 8: ...80 STEEL OPTION 304931 304980 GRAPHITE OPTION CENTER DIFF SPUR GEARS 364978 78T 48 OPTION 364981 81T 48 INCLUDED 304930 COMPOSITE GEAR DIFF BEVEL SATELLITE GEARS 2 4 304980 COMPOSITE GEAR DIFF CROSS P...

Page 9: ...s stability FOR CENTER DIFFERENTIAL 107865 HUDY Ultimate Digital Pocket Scale 300g 0 01g g 1 1 00 g 1250 11 00g 1 50g 12 50g Diff 100 000cSt 1 GEAR CENTER DIFFERENTIAL 902306 SH M3x6 903258 SFH M2 5x8...

Page 10: ...KHEAD BLOCK SET REAR 363083 XT4 GRAPHITE SHOCK TOWER REAR 3 5MM 365124 STEEL BEVEL DRIVE GEAR 14T 365230 DRIVE SHAFT COUPLING HUDY SPRING STEEL 365427 CENTRAL DRIVE SHAFT 105MM HUDY SPRING STEEL 36544...

Page 11: ...RIENTATION DETAIL XRAY BALL BEARINGS 359050 5x10x4 GREASE OPTION 940510 5x10x4 OIL INCLUDED 940814 8x14x4 GREASE OPTION 940815 8x14x4 OIL INCLUDED 981208 P 2x8 Bearing Oil HUDY 106230 5x10x4mm OIL Bea...

Page 12: ...NGS 359050 5x10x4 GREASE OPTION 940510 5x10x4 OIL INCLUDED 940814 8x14x4 GREASE OPTION 940815 8x14x4 OIL INCLUDED 362002 DIFF BULKHEAD BLOCK SET FRONT 362084 XT4 GRAPHITE SHOCK TOWER FRONT 3 5MM 36512...

Page 13: ...SH M3x10 NOTE ORIENTATION THREAD LOCK NOTE ORIENTATION NOTE ORIENTATION DETAIL FRONT DIFF 30 000cSt 5x10x4mm OIL 8x14x4mm OIL GRAPHITE GREASE HUDY 106210 981208 P 2x8 Bearing Oil HUDY 106230 Bearing...

Page 14: ...OSITE SET OF SERVO SHIMS 4 362003 DIFF BULKHEAD BLOCK SET REAR 362315 ECCENTRIC BUSHING SET 2 362478 ANTI ROLL BAR 1 8 MM 323112 M XT4 COMPOSITE SUSPENSION ARM REAR LOWER MEDIUM 363311 ALU REAR LOWER...

Page 15: ...amounts of adjustment using the center and outside positions of the eccentric bushings The middle position eccentric bushings allow for finer adjustment increments Example 0 RR 0 RF 2 0 RR 0 5 RF 2 5...

Page 16: ...n the 3x4 setscrew if the anti roll bar does not turn freely Step 901308 SB M3x8 901303 SB M3x3 901304 SB M3x4 902308 SH M3x8 DETAIL DETAIL DETAIL DETAIL ANTI ROLL BARS 362470 1 0mm OPTION 362471 1 1m...

Page 17: ...TRIC BUSHING SET 2 362320 ALU FRONT LOWER SUSP HOLDER REAR 7075 T6 5MM 362478 ANTI ROLL BAR 1 8 MM 367210 SUSPENSION PIVOT PIN 2 901303 HEX SCREW SB M3x3 10 901304 HEX SCREW SB M3x4 10 901308 HEX SCRE...

Page 18: ...FF 0 FR 9 0 5 FF 0 FR 9 5 1 FF 0 FR 10 9 9 5 10 The XRAY alu front lower suspension holders provide great range of adjustment for the front suspension Using different combinations of eccentric bushin...

Page 19: ...ti roll bar does not turn freely Step 3x4mm 3x3mm 3x8mm 901308 SB M3x8 901303 SB M3x3 901304 SB M3x4 902308 SH M3x8 902308 SH M3x8 DETAIL DETAIL DETAIL DETAIL ANTI ROLL BARS 362470 1 0mm OPTION 362471...

Page 20: ...2 96 0030 NUT M3 10 96 1025 WASHER S 2 5 10 96 2030 WASHER S 3x6x0 3 10 96 2031 WASHER S 3x6x0 1 10 98 0210 PIN 2x10 10 902310 902254 365230 325316 325340 941014 306219 940513 365360 362280 960030 362...

Page 21: ...UE 106222 RED XRAY BALL BEARINGS 940512 5x12x4 OIL OPTION 941015 10x15x4 OIL OPTION 940513 5x12x4 GREASE INCLUDED 941014 10x15x4 GREASE INCLUDED OPTIONAL HEX HUB EFFECTS Different offset hex hubs are...

Page 22: ...SETTING CONICAL SHIM 3x6x2mm ALU CONICAL SHIMS 362280 SILVER INCLUDED 362280 K BLACK OPTION 362280 O ORANGE OPTION 2x L R NOTE ORIENTATION 961025 S 2 5 962031 S 3x6x0 1 962030 S 3x6x0 3 902254 SH M2 5...

Page 23: ...9050 365470 327220 961025 362651 960030 902254 902312 325317 365230 362291 940513 980210 980210 362210 H 902314 362280 362652 302665 302665 902205 365240 BAG C HUBS 362210 RIGHT 9 M OPTION 362210 H RI...

Page 24: ...for rough tracks to improve stability INITIAL POSITION DETAIL HIGHER ROLL CENTER TOP SHORTER bushing 3x12 screw BOTTOM LONGER bushing 3x14 screw Recommended for smooth tracks to gain more steering DE...

Page 25: ...If the C hub does not move freely use a HUDY Arm Reamer to resize the hole ARM REAMER HUDY 107633 CONICAL SHIM 3x6x2mm NOTE ORIENTATION NOTE ORIENTATION 362280 CON SHIM 3x6x2 960030 N M3 Check for fr...

Page 26: ...02312 902310 902316 902314 HEX SCREW SH M3x14 10 902316 HEX SCREW SH M3x16 10 903308 HEX SCREW SFH M3x8 10 903310 HEX SCREW SFH M3x10 10 903314 HEX SCREW SFH M3x14 10 960030 NUT M3 10 961032 WASHER S...

Page 27: ...flex and are recommended for low traction tracks Do not fully tighten the screws during assembly Fully tighten the screws only after both front and rear suspension assemblies are mounted to the chass...

Page 28: ...3x10mm 3x10mm 3x10mm 3x14mm 3x10mm After you mount the rear suspension assembly to the chassis fully tighten all 4 screws that were previously left untightened page 25 step 2 After you mount the front...

Page 29: ...G PLATE 363241 BALL UNIVERSAL 5 75MM WITH BACKSTOP 2 902308 HEX SCREW SH M3x8 10 902310 HEX SCREW SH M3x10 10 903310 HEX SCREW SFH M3x10 10 903316 HEX SCREW SFH M3x16 10 903318 HEX SCREW SFH M3x18 10...

Page 30: ...NG NOTE ORIENTATION NOTE ORIENTATION 303125 SHIM 3x6x3 902308 SH M3x8 902310 SH M3x10 Increases steering precision and predictability and is recommended for use in high traction conditions Includes ex...

Page 31: ...ds outside NOTE ORIENTATION Adjustment block towards outside 2x 2x L R L R 303125 SHIM 3x6x3 Check for free movement Check for free movement INITIAL POSITION DETAIL view SHIM 3x6x2mm 902310 SH M3x10 3...

Page 32: ...x18 10 903308 HEX SCREW SFH M3x8 10 941015 BALL BEARING 10x15x4 RUBBER SEALED OIL 2 364901 GEAR CENTER DIFFERENTIAL SET 364023 941015 902318 364013 903308 941015 903308 903308 361175 364901 361320 361...

Page 33: ...106230 OIL NOTE ORIENTATION REARWARD WEIGHT POSITION More traction on the rear suspension increases stability of the car recommended for use on very low traction tracks TIGHTEN GENTLY 95mm 82mm 365425...

Page 34: ...34 6 SLIPPER CLUTCH ASSEMBLY 903308 SFH M3x8 902308 SH M3x8...

Page 35: ...368261 306219 306219 306219 902205 970120 363240 352460 368010 970140 368140 970080 368260 368031 368010 972031 965023 BAG PISTONS DETAIL 2 holes 1 6mm 2 holes 1 6mm 2 holes 1 7mm 2 holes 1 7mm 0 hol...

Page 36: ...body assembly O ring damage may result Always use same shim thickness on right and left side to achieve same downstop 306219 DOWNSTOP SHIMS THICKER shim used GREATER downstop is achieved IMPORTANT FR...

Page 37: ...short use 650cSt oil For the REAR shocks long use 450cSt 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 s...

Page 38: ...5 STEEL SCREW SHOCK PIVOT BALL WITH HEX 2 902308 HEX SCREW SH M3x8 10 902310 HEX SCREW SH M3x10 10 902312 HEX SCREW SH M3x12 10 903308 HEX SCREW SFH M3x8 10 903310 HEX SCREW SFH M3x10 10 960030 NUT M3...

Page 39: ...3 960030 N M3 NOTE ORIENTATION NOTE ORIENTATION SHOCKS For the rear shock position cut holes into the Lexan rear wing SHOCKS SHOCKS INITIAL SETTING SHOCKS MOUNTED IN FRONT OF REAR SHOCK TOWER ALTERNAT...

Page 40: ...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 u...

Page 41: ...ar Adjust gear mesh Tighten the screw NOTE ORIENTATION Pinion NOT INCLUDED Loosen the screw Insert motor into the bulkhead NOTE PINIONS 365718 18T 48P 365719 19T 48P 365720 20T 48P 365721 21T 48P 3657...

Page 42: ...107871 HUDY CUT Double sided Tape HUDY 107875 NOT INCLUDED Receiver NOT INCLUDED Feed the receiver wire into the antenna tube 903310 SFH M3x10 903308 SFH M3x8 Double sided Tape HUDY 107875 NOT INCLUDE...

Page 43: ...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...

Page 44: ...L R 8 FINAL ASSEMBLY Double sided Velcro tape is used to seal the body against the side guards 902310 SH M3x10 981212 P 2x12 VELCRO TAPE WITH DOUBLE SIDED TAPE Velcro tape hook side Velcro tape soft...

Page 45: ...45 960240 N M4 8 FINAL ASSEMBLY 903308 SFH M3x8 OPTIONAL ALU WING SHIMS 293561 SILVER OPTION 293561 O ORANGE OPTION Tires Inserts NOT INCLUDED...

Page 46: ...rods or shaved split loose composite upper and lower ball joints are also important BEARING MAINTENANCE Ball bearings in an off road car must be properly maintained for smooth operation and long lifes...

Page 47: ...NOTE...

Page 48: ...TeamXray TeamXray TeamXray XrayRacing TeamXrayRC XrayRacing RC AMERICA 2030 Century Center Blvd 15 Irving TX 75062 USA PHONE 214 744 2400 FAX 214 744 2401 xray rcamerica com...

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