Xray XII Instruction Manual

2

BEFORE YOU START

The XII is a high-quality, 1/12-pan 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 car 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 XII, 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 and examine all details carefully. If for some reason you decide the XII is not what you wanted
or expected, do not continue any further. Your hobby dealer cannot accept your XII 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 specifi cations of the kit may vary without
prior notice.

Failure to follow these instructions will be considered as abuse and/or neglect.

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.

CUSTOMER SUPPORT

We have made every effort to make these instructions as easy to understand as possible. However, if you have any diffi culties, problems, or questions, please
do not hesitate to contact the XRAY support team at [e-mail]. Also, please visit our Web site at www.teamxray.com to fi nd the latest updates, set-up
information, option parts, and many other goodies. We pride ourselves on taking excellent care of our customers.

You can join thousands of XRAY fans and enthusiasts in our online community at: www.teamxray.com

XRAY USA

RCAmerica, 167 Turtle Creek Boulevard

Suite C

Dallas, Texas 75207, USA

Phone: [phone] * [phone]

Fax: [phone]

E-mail: [e-mail]

XRAY Europe

K Výstavisku 6992 , 91101 Trenčín

Slovakia
EUROPE

Phone: [phone]

Fax: [phone]

E-mail: [e-mail]

3

XRAY Premium

Silicone Oil 350cSt

(#359235)

Diff. Grease

(HUDY #106211)

SYMBOLS USED

TOOLS REQUIRED

TOOLS REQUIREDEQUIPMENT INCLUDED

EQUIPMENT REQUIRED

L=R

2x

CA

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 CA glue Apply oil

05

Apply grease Ensure smooth

non-binding

movement

Follow Set-up

Book

Side Cutters Hobby Knife File Turnbuckle 4mm

(HUDY #181040)

Turnbuckle 3mm

(HUDY #181030)

Reamer

(HUDY #107600)

Pliers

Allen Wrench 1.5mm
(HUDY #111540)

Allen Wrench 2.0mm
(HUDY #112040)

Socket Driver 5.5mm
(HUDY #170055)

1.5 mm

2.0 mm

5.5 mm

Scissors

Transmitter Steering ServoReceiver

Lexan PaintBattery Charger Front & Rear Tires Bearing Oil

(HUDY #106230)

Speed Controller

Tire Truer

(HUDY #102003)

4-cell Battery Pack

Pinion Gear and Setscrew BodyshellElectric Motor

Fibre Tape

(HUDY #107870)

4

GRAPHITE PARTS PREPARATION

CORRECT

INCORRECT

Lightly file edges of battery slots to remove sharp edges.

Do not file battery slots too much, or batteries
may protrude below the chassis bottom.

To protect and seal edges of graphite parts, sand edges smooth and then apply CA glue.

Fine sandpaper
Use fine sandpaper to sand smooth

the edges of all graphite parts.

CA

PREPARE ALL GRAPHITE PARTS

Apply CA glue to all adges of the graphite parts.

5

1. FRONT SUSPENSION

FRONT COIL SPRINGS

#372180 C=3.5 - GOLD (standard)
#372181

C=4.0 - SILVER (option)
#372182 C=5.0 - BLACK (option)
#372183 C=6.0 - GREY (option)

372180

372020

372620

371100

372315

902312

901304

960031

372290

960031

377220

372315

372120

372291

373240

BAG

903312

902308

965019

372085

372290

372280

372130

373240

965019

372130

372650

964032

372220

375220

371100 XII CHASSIS - 2.0MM GRAPHITE
372010 COMPOSITE FRONT UPPER ARM MOUNT - RIGHT
372020 COMPOSITE FRONT UPPER ARM MOUNT - LEFT
372085 FRONT BRACE - GRAPHITE 2.0MM
372110 COMPOSITE SUSPENSION ARM - FRONT LOWER - RIGHT
372120 COMPOSITE SUSPENSION ARM - FRONT LOWER - LEFT
372130 COMPOSITE FRONT UPPER SUSPENSION ARM & BALL JOINT
372180 FRONT COIL SPRING 3.6x6x0.5MM; C=3.5 - GOLD (2)
372210 COMPOSITE STEERING BLOCK - RIGHT

372220 COMPOSITE STEERING BLOCK - LEFT
372280 KING PIN (2)
372290 ALU SHIM 3.2x4.8x0.5 (4)
372291 ALU SHIM 3.1x8x0.5 (4)
372315 COMPOSITE ECCENTRIC BUSHINGS + CASTER CLIPS (2)
372620 ADJ. TURNBUCKLE M3x17 MM - HUDY SPRING STEEL™ (2)
372650 BALL-END 4.2MM - THREADED - HUDY SPRING STEEL™ (2)
373240 PIVOTBALL UNIVERSAL 6.0 MM - HUDY SPRING STEEL (2)
375220 FRONT WHEEL AXLE - HUDY SPRING STEEL (2)

372210

372110

372010

377220 FRONT UPPER PIVOT PIN 2x31MM (2)

901304 HEX SCREW SB M3x4 (10)
902308 HEX SCREW SH M3x8 (10)
902312 HEX SCREW SH M3x12 (10)
903312 HEX SCREW SFH M3x12 (10)
960031 ALU NUT M3 (10)
964032 WASHER S 3.2 x 4.8 x 0.2 (10)
965019 E-CLIP 1.9 (10)

6

1. 2. 3.

3x12

3x8

5.2mm 5.2mm

COMPLETED ASSEMBLY COMPLETED ASSEMBLY

COMPLETED ASSEMBLY

Marked “L“

NOTE ORIENTATION

Lightly tighten setscrews

NOTE
ORIENTATION

2x 2x 2x

REACTIVE CASTER SETTING

= 2.5°

= 5° INITIAL SETTING

= 7.5°

Use same bushings in left and right sides.

CASTER CAMBER

902308

SH M3x8

901304

SB M3x4

902312

SH M3x12

7

4. 5. 6.

Marked “R“

Marked “L“

COMPLETED ASSEMBLY

NOTE ORIENTATION

The number of shims used
affects the ride height of the
car, so determine the proper
amount of shimming based
on your tire diameter.

Moves
freely

The number of shims used affects the
ride height of the car, so determine
the proper amount of shimming
based on your tire diameter.

For initial setting use 3.1x8x0.5
shims (3x)

2x 2x 2x

FRONT RIDE HEIGHT ADJUSTMENT

INITIAL SETTING

above upper arm (0.5mm)
above steering block (1.5mm)
beneath steering block (0mm)

COMPLETED ASSEMBLY

FRONT COIL SPRINGS

#372180 C=3.5 - GOLD
#372181 C=4.0 - SILVER
#372182 C=5.0 - BLACK
#372183 C=6.0 - GREY

0.5mm

0.5mm

0.2mm (5x)

RIDE HEIGHT RIDE HEIGHT

960031

ALU N M3

372290

S 3.2x4.8x0.5

964032

S 3.2x4.8x0.2

372291

S 3.1x8x0.5

965019

C 1.9

903312

SFH M3x12

960031

ALU N M3

8

7. 8.

FRONT BRACES

#372080 ALU ACTIVE BRACE (option)
#372085

GRAPHITE BRACE (standard)

2mm

Loosen all M3x4 setscrews so you
can easily remove the pins.

Make sure that arm moves freely.

INITIAL SETTING

After inserting clips, carefully tighten all M3x4
setscrews so the pins will not move. Do not
overtighten or you may strip the plastic.

If the arm does not have
enough play, remove the
clips and thin the clips
slightly with sandpaper.
The arms must have free
movement and not bind.

1mm

0.5mm

2x

FRONT BRACE CASTER

9

2. T-BAR ASSEMBLY

BAG

371180 FIBERGLASS T-BAR 1.5MM - WIDE
373060 COMPOSITE PIVOT MOUNTS - SET
373065 T-BAR PIVOTBALL - HUDY SPRING STEEL (2)
373510 ALU FRICTION DAMPER POST

373510

373065

373060

371180

902256

960031

373060

901305

373060

903314

901305 HEX SCREW SB M3x5 (10)
902256 HEX SCREW SH M2.5x6 (10)
903314 HEX SCREW SFH M3x14 (10)
960031 ALU NUT M3 (10)

10

1.1 1.2

FIBERGLASS T-BAR

#371180 WIDE (standard)
#371181

NARROW (option)

T-BAR MOUNTING OPTION 1:
PRO Racing with 2 Pivotballs

T-BAR MOUNTING OPTION 2:
CLUB Racing with 1 Pivotball

T-BAR T-BAR

902256

SH M2.5x6

902256

SH M2.5x6

11

2. 3.

Ensure free, smooth movement

without excessive freeplay.

These screws are used for tweak
adjustment. For more information
about tweak setting follow set-up
book.

1.9mm

1.9mm

Ensure the T-bar moves freely after assembly.

Lightly tighten the screws so
there is no free play, but do not
overtighten otherwise the balls
will not move freely.

This is only an ESTIMATED value;
make sure that the setscrews only
lightly touch the chassis.

INITIAL SETTING

TWEAK

901305

SB M3x5

903314

SFH M3x14

960031

ALU N M3

12

3. REAR SUSPENSION

903306

902306

373060

373080

903310

371140

373030

372650

376300

301159

970048

903306

903306

373020

970048

372650

373520

902306

373540

903310

373010

903310

901304

903308

373520

373071

960031

960031

373580

373580

BAG

301159 ALU COUNTERSUNK SHIM (4)
371140 GRAPHITE 2.0MM REAR POD LOWER PLATE
372650 BALL-END 4.2MM - THREADED - HUDY SPRING STEEL™ (2)
373010 ALU REAR BULKHEAD - MOTOR (RIGHT)
373020 ALU REAR BULKHEAD - LEFT
373030 ALU REAR BULKHEAD BRACE
373060 COMPOSITE PIVOT MOUNTS - SET
373071 ALU REAR BRACE MOUNT (2)

373080 REAR BRACE - GRAPHITE 2.0MM
373520 COMPOSITE FRICTION DAMPER PAD (2)
373540 REAR POD UPPER PLATE - GRAPHITE 2.0MM
373580 FRICTION DAMPER PAD SPRING (2)
376300 COMPOSITE ANTENNA MOUNT

901304 HEX SCREW SB M3x4 (10)
902306 HEX SCREW SH M3x6 (10)
903306 HEX SCREW SFH M3x6 (10)
903308 HEX SCREW SFH M3x8 (10)
903310 HEX SCREW SFH M3x10 (10)
960031 ALU NUT M3 (10)
970048 O-RING 4.8x1.9 (10)

13

1. 2. 3.

NOTE ORIENTATION

3x10

3x10

3x6

3x6

903306

SFH M3x6

903310

SFH M3x10

903310

SFH M3x10

960031

ALU N M3

902306

SH M3x6

903306

SFH M3x6

14

4. 5. 6.

Do not fully tighten
the setscrew

Pod damping is controlled
by the amount of grease
used.

➊

➋

➌

➍

➎

➏

➐

➑

➒

Diff Grease
(HUDY #106211)

POD DAMPING

960031

ALU N M3

902306

SH M3x6

903306

SFH M3x6

970048

O 4.8x1.9

901304

SB M3x4

903308

SFH M3x8

15

375030

375050

960031

930130

941438

375010

375090

951438

372070

375090

908258

375040

375080

930138

963030

941438

375896

375080

951438

3720

4. BALL DIFFERENTIAL

BAG

372070 COMPOSITE RIDE HEIGHT ADJUSTER SET (2)
375010 REAR AXLE SHAFT - GRAPHITE
375030 ALU REAR WHEEL HUB - RIGHT
375040 ALU REAR WHEEL HUB - LEFT
375050 ALU DIFF HUB
375080 D-LOCK DIFF PLATE (2)
375090 SET OF ALU SHIMS (0.5MM, 1.0MM, 2.0MM)
375896 COMPOSITE SPUR GEAR - 96T / 64P

908258 HEX SCREW SOCKET HEAD CAP M2.5x8 (10)
930130 CARBIDE BALL 3.175MM (12)
930138 CARBIDE BALL-BEARING AXIAL F3-8 3x8x3.5
941438 HIGH-SPEED BALL-BEARING 1/4“x3/8“x1/8“ RUBBER SEALED (2)
951438 BALL-BEARING 1/4“ x 3/8“ x 1/8“ FLANGED (2)
960031 ALU NUT M3 (10)
963030 CONE WASHER ST 3x8x0.5 (10)

16

1. 2.

0 2.0 1.5 1.0 0.5

The axle must have a VERY small amount of
sideplay. If there is no side play, the axle may bind
in the ball-bearings and damage the bearings.

Use these Ride Height
Adjusters for initial assembly.

Use additional shims to widen the rear
track-width. Use the same shims on both sides.
For initial assembly use 6.4x8.4x1mm shims.

Bearing Oil

(HUDY #106230)

Bearing Oil

(HUDY #106230)

OIL

OIL

Flanged

Flanged

RIDE HEIGHT TRACK WIDTH

951438

BB 1/4“x3/8“x1/8“

375090

6.4x8.4x1.0

908258

SCH M2.5x8

17

3.

NOTE

ORIENTATION

NOTE

ORIENTATION

NOTE

ORIENTATION

Diff Grease

(HUDY #106211)

Bearing Oil

(HUDY #106230)

Diff Grease
(HUDY #106211)

This nut affects the tightness and stiffness of the
rear differential.

Tighten the nut gently so the diff does not slip
under power, but do not overtighten or damage
to the diff balls and plates may occur.

OIL

Bearing Oil

(HUDY #106230)

OIL

Diff Grease

(HUDY #106211)

Diff Grease

(HUDY #106211)

8.0mm 7.8mm

3.0mm

3.2mm

DIFERENTIAL

930138

BA 3x8

941438

BB 1/4“x3/8“x1/8“

930130

B 3.1

963030

ST 3x8

960031

ALU N M3

18

378010

378010

378060

971022

378030

378090

901303

378010

378050

378080

378020

378010

378040

378070

965015

SHOCK OILS

#359210 100cSt (option)
#359215

150cSt (option)
#359220 200cSt (option)
#359225 250cSt (option)
#359230 300cSt (option)
#359235 350cSt (standard)
#359240 400cSt (option)
#359245 450cSt (option)

5. SHOCK ABSORBER

BAG

378010 COMPOSITE SHOCK PARTS - FRAME
378020 ALU THREADED SHOCK BODY - HARDCOATED
378030 ALU SHOCK BODY CAP - LOWER
378040 ALU SHOCK ADJUSTABLE NUT
378050 ALU SHOCK BODY CAP - UPPER
378060 SHOCK SHAFT
378070 ALU SHOCK SPRING COLLAR

378080 SHOCK RUBBER MEMBRANE (2)
378090 SHOCK SPRING

901303 HEX SCREW SB M3x3 (10)
965015 E-CLIP 1.5 (10)
971022 SILICONE O-RING 2x2 (10)

19

1. 2. 3.

Shock Oil

Shock Oil

OIL

OIL

Carefully remove the shock piston from the
frame, and remove all excess plastic fl ash

COMPLETED ASSEMBLY

965015

C 1.5

971022

O 2x2

20

4.

➊➋➌➍➎➏

➐

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.

Tighten the cap fully but
do not overtighten or the
rubber membrane may be
damaged. Make sure that
there is no oil leakage
after the cap is tightened.

HALF TIGHTEN TIGHTEN FULLY

100%

Extend the shock shaft
completely. Fill the shock
body with the shock 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, approx.
50%. Excess oil will flow
through the hole in the
shock cap.

3~5x

UP & DOWN

50%

Follow the steps below to set the shock.

Oil 350cSt

DEFAULT SHOCK SETTING

21

5. 6.

5mm

COMPLETED ASSEMBLY

INITIAL SETTING

The length of the shock
absorber affects the amount
of rear downstop. To adjust,
thread the ball-joint on or
off the threaded post on the
bottom spring cap.

Press the collar FULLY onto the end of
the shock shaft and tighten the M3x3
setscrew.

For initial setting,
thread fully.

DOWNSTOP ADJUSTMENT

SHOCK

DOWNSTOP

901303

SB M3x3

22

306131

NOT INCLUDED

309400

NOT INCLUDED

375390

951851

960031

981210

902308

NOT INCLUDED

309400

NOT INCLUDED

981210

903310372500

903308

372660

372610

951851

903305

371320

NOT INCLUDED

902308

371320

371200

903310

376310

376210

NOT INCLUDED

301159

372500

FROM SERVO

372650

372660

NOT INCLUDED

6. FINAL ASSEMBLY

BAG

301159 ALU COUNTERSUNK SHIM (4)
305968~88 PINION GEAR ALU HARD COATED 18~38T/64P
306131 SET OF BATTERY BACKSTOPS - V2
309400 BODY CLIP FOR 5MM BODY POST (8)
371200 COMPOSITE CHASSIS PROTECTOR (2)
371320 COMPOSITE BODY POST (2)
372500 COMPOSITE SERVO SAVER SET

372610 ALU ADJ. TURNBUCKLE M3x42 MM - SWISS 7075 T6 (2)
372650 BALL-END 4.2MM - THREADED - HUDY SPRING STEEL™ (2)
372660 COMPOSITE STEERING BALL-JOINT 4.2 MM (4)
375390 ALU HEX SCREW M3x8 FOR REAR WHEELS (6)
376210 COMPOSITE SERVO MOUNT (2)
376310 FIBERGLASS SOLID ANTENNA ROD + CAP

902308 HEX SCREW SH M3x8 (10)
903305 HEX SCREW SFH M3x5 (10)
903308 HEX SCREW SFH M3x8 (10)
903310 HEX SCREW SFH M3x10 (10)
960031 ALU NUT M3 (10)
981210 PIN 2x10 (10)
981851 BALL-BEARING 1/8“ x 5/16“ x 9/64“ FLANGED (2)

23

1. 2. 3.

SERVO MOUNT SETS

#376210 COMPOSITE (standard)
#376215

GRAPHITE - MID-SIZE (option)

#376216 GRAPHITE - MICRO (option)

Futaba

INITIAL POSITION

Use the adapter that match
your servo.

We recommend using a micro
servo for 1/12 pan cars.

Note the orientation of
servo saver when servo is
in neutral.

90º

Hitec KO Propo

62mm

Left thread

Left thread

62mm

NOTE

ORIENTATION

2x

Servo

(Not included)

From servo

TOE

903308

SFH M3x8

903310

SFH M3x10

24

4. 5. 6.

NOTE
ORIENTATION

NOTE
ORIENTATION

Note groove position

Note groove
position

2x 2x 2x

ACKERMANN

902308

SH M 3x8

903310

SFH M 3x10

981210

P 2x10

981210

P 2x10

25

7. 8.

Adjust the gear mesh
so there is appropriate
space between the
spur gear and pinion
teeth. There should be
a very small amount of
freeplay.

The chassis is balanced for use with
a brushless motor. When a standard
brushed motor is used, we recommend
using additional shim(s) between the
motor and the bulkhead to balance the
weight properly.

Double-sided tape

(Not included)

After inserting the antenna rod, fully tighten both
setscrews. Do not overtighten or you may strip the plastic.

Receiver

(Not included)

Receiver wire

Pinion

(Not included)

Motor

(Not included)

Speed controller
(Not included)

➊

➋

➌

PINION GEARS ALU HARDCOATED

#305968 18T / 64P (option)

#305969 19T / 64P (option)

#305970 20T / 64P (option)

#305971 21T / 64P (option)

#305972 22T / 64P (option)

#305973 23T / 64P (option)

#305974 24T / 64P (option)

#305975 25T / 64P (option)

#305976 26T / 64P (option)

#305977 27T / 64P (option)

#305978 28T / 64P (option)

#305979 29T / 64P (option)

#305980 30T / 64P (option)

#305981 31T / 64P (option)

#305982 32T / 64P (option)

#305983 33T / 64P (option)

#305984 34T / 64P (option)

#305985 35T / 64P (option)

#305986 36T / 64P (option)

#305987 37T / 64P (option)

#305988 38T / 64P (option)

GEAR RATIO

902308

SH M 3x8

26

9a. 9b.

BATTERY CONFIGURATION 2:
Rear Position

BATTERY CONFIGURATION 1:
Forward Position

INITIAL ASSEMBLY

BATTERY

POSITION

BATTERY

POSITION

903305

SFH M3x5

903305

SFH M3x5

27

10.

Fibre tape
(HUDY #107870)
(Not included)

Battery Pack

(Not included)

Bearing Oil
(HUDY #106230)

OIL

Gently tighten the wheel nuts
so the wheel turns freely, but
without excessive axial play.

COMPLETED ASSEMBLY

Rear Wheels & Tires

(Not included)

Front Wheels & Tires

(Not included)

375390

ALU SCH M3x8

951851

BB 1/8“x5/16“x9/64“

960031

ALU N M3

581703 9107018