Xray T4'21 Instruction Manual Download

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HUDY MULTI-TOOL USE

VIDEO TECH TIP

▶

901304

SB M3x4

303123

SHIM 3x6x2

901304

SB M3x4

303122

SHIM 3x6x1

303127

SHIM 3x6x4

The information about the optional Active Rear

Suspension is at the end of the manual.

1mm

4mm

LEFT UPRIGHT = RIGHT UPRIGHT

L=R

5mm THREAD

10mm THREAD

REAR SUSPENSION

L=R

53.5mm

Install the pivot balls with Professional

Multi Tool (HUDY #183011)

2mm

5mm THREAD

10mm THREAD

2mm

TIGHTEN GENTLY

FRONT SUSPENSION

L=R

55.5mm

Install the pivot balls with Professional

Multi Tool (HUDY #183011)

5. FRONT & REAR TRANSMISSION

TIGHTEN GENTLY

INITIAL SETTING

1:1

25mm

L=R

INITIAL SETTING

1:1

23mm

#307222

TITANIUM FRONT ARM PIVOT PIN (2)

L=R

INITIAL SETTING

#307322

TITANIUM REAR ARM PIVOT PIN (2)

Summary of Contents for T4'21

Page 1: ......

Page 2: ...r 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...

Page 3: ...al 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 include...

Page 4: ...11545 HUDY EXCLUSIVE Limited Edition Allen 2 0mm 112045 HUDY EXCLUSIVE Limited Edition Allen 3 0mm 113045 HUDY EXCLUSIVE Limited Edition Socket 5 5mm 175535 HUDY EXCLUSIVE Limited Edition Socket 7 0mm 177035 HUDY EXCLUSIVE Limited Edition Arm Reamer 3 0mm 107643 HUDY EXCLUSIVE Limited Edition Reamer 107602 HUDY EXCLUSIVE Limited Edition Turnbuckle Wrench 3mm HUDY 181030 Turnbuckle Wrench 4mm HUDY ...

Page 5: ...h are listed in a table like this 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 SAMPLE OF OPTIONAL PARTS 30XXXX TYPE1 OPTION 1 30XXXX TYPE1 OPTION 2 30XXXX TYPE1 INCLUDED 30XXXX TYPE1 OPTION 3 CA To protect and seal edges of graphite parts sand edges sm...

Page 6: ...41015 BALL BEARING 10x15x4 RUBBER SEALED OIL 2 964031 WASHER S 3 5x10x0 2 10 964050 WASHER S 5x15x0 3 10 971240 SILICONE O RING 24x0 7 10 972050 SILICONE O RING 5x2 10 981210 PIN 2x10 10 GEAR DIFFERENTIAL NOTE ORIENTATION 304971 HUDY SPRING STEEL OUTDRIVES 304971 HUDY SPRING STEEL OUTDRIVES BAG 304970 304910 964050 972050 304990 304910 903256 981210 981210 304970 941015 971240 972050 964031 304980...

Page 7: ...ou use the gear diff in the front we recommend using optional 304971 HUDY Spring Steel outdrives because the stress on the outdrives in the front is much higher than in the rear USE THESE OILS FOR FRONT DIFFERENTIAL 500 000cSt HUDY 106650 1 000 000cSt HUDY 106692 2 000 000cSt HUDY 106694 To make the front differential tighter you can use cleaning gum instead of oil IMPORTANT Using cleaning gum ins...

Page 8: ...OIL 903256 SFH M2 5x6 Tighten the screws equally but do NOT tighten them completely Finish tightening in this order NOTE ORIENTATION DETAIL BEARING OIL HUDY 106230 OIL OIL BEARING OIL HUDY 106230 OIL 305137 STEEL LIGHTWEIGHT SOLID AXLE DRIVESHAFT ADAPTERS HUDY SPRING STEEL 305136 ALU SOLID DRIVESHAFT ADAPTERS ...

Page 9: ... STAINLESS 10 902305 HEX SCREW SH M3x5 10 902306 HEX SCREW SH M3x6 10 902308 HEX SCREW SH M3x8 10 903304 HEX SCREW SFH M3x4 10 903305 HEX SCREW SFH M3x5 10 903306 HEX SCREW SFH M3x6 10 930407 BALL BEARING 4x7x2 5 STEEL SEALED OIL 2 962042 WASHER S 4x6x0 1 10 970050 O RING 5x1 10 304900 XRAY GEAR DIFFERENTIAL SET 305188 COMPOSITE SOLID AXLE 38T SET 301004 T4 21 GRAPHITE CHASSIS 2 2MM 301005 T4 21 A...

Page 10: ... To align the bulkheads straight we suggest using the HUDY Professional Bulkhead Alignment tool See page 13 2 CENTRAL TRANSMISSION SOLID AXLE GEAR DIFF 302063 OR 302063 K ALU ADJUSTMENT BALL BEARING HUB 2 302063 OR 302063 K ALU ADJUSTMENT BALL BEARING HUB 2 DETAIL NOTE ORIENTATION DETAIL NOTE ORIENTATION ...

Page 11: ...ring but makes the rear slightly more loose INITIAL POSITION for CARPET ASPHALT Place tab in this BOTTOM NOTCH INITIAL POSITION for CARPET ASPHALT Place tab in this BOTTOM NOTCH NOTE ORIENTATION NOTE ORIENTATION NOTE ORIENTATION SHORT side LONG side 2 CENTRAL TRANSMISSION 1 2 3 CUTAWAY VIEW 305578 O FIXED PULLEY 20T GRAPHITE 2 DETAIL NOTE ORIENTATION NOTE ORIENTATION Snap Ring Pliers 966081 CH CLI...

Page 12: ...ing all screws to attach the motor mount as shown will give the best steering response but with the least mechanical traction The car will have more cornering speed but will be more difficult to drive Mainly recommended for high traction carpet conditions Use only the 4 rearmost screws to attach the motor mount as shown do not install the very front screw This gives a good compromise between stabi...

Page 13: ...001 HUDY PROFESSIONAL BULKHEAD ALIGNMENT TOOL 17MM L R L R DO NOT TIGHTEN FULLY DO NOT TIGHTEN FULLY DO NOT TIGHTEN FULLY DO NOT TIGHTEN FULLY FINISH TIGHTENING IN THIS ORDER FINISH TIGHTENING IN THIS ORDER FULLY TIGHTEN FULLY TIGHTEN FULLY TIGHTEN FULLY TIGHTEN Shock tower screws 4 Shock tower screws 4 Bulkhead screws 4 Bulkhead screws 4 2 CENTRAL TRANSMISSION ...

Page 14: ... the car will be more difficult to drive as it is less stable Recommended for medium high traction conditions and for small technical tracks with many hairpin corners In addition to all screws used for the medium setting install a front screw at the top ensure you insert a 0 5mm shim between the T brace and the motor mount as shown This gives improved stability Recommended for very high traction c...

Page 15: ...ENSION ARM LONG RIGHT GRAPHITE 302174 G FRONT SUSPENSION ARM LONG LEFT GRAPHITE 302713 ALU FRONT LOWER 1 PIECE SUSPENSION HOLDER FRONT FF 302723 ALU FRONT LOWER 1 PIECE SUSPENSION HOLDER REAR FR 303129 COMPOSITE SET OF WHEELBASE SHIMS 3x1MM 1x2MM 2 303173 G REAR SUSPENSION ARM LONG RIGHT GRAPHITE 303174 G REAR SUSPENSION ARM LONG LEFT GRAPHITE 303723 ALU REAR LOWER 1 PIECE SUSPENSION HOLDER REAR R...

Page 16: ...t the influence of rear squat rear toe in rear roll center and rear track width on car handling please refer to HUDY Set up Book 209100 Marked RR REAR SUSPENSION 303731 ALU LOWER 2 PIECE SUSPENSION 0 25 ECCENTRIC HOLDER STAND INITIAL SETTING FOR CARPET INITIAL SETTING FOR ASPHALT INITIAL SETTING FOR ASPHALT INITIAL SETTING FOR CARPET ECCENTRIC BUSHINGS ECCENTRIC BUSHINGS NOTE ORIENTATION NOTE ORIE...

Page 17: ... information about the influence of front anti dive front kick up front toe in front roll center and front track width on car handling please refer to HUDY Set up Book Marked FF All possible mounting alternatives of eccentric bushings FRONT SUSPENSION NOTE ORIENTATION NOTE ORIENTATION INITIAL SETTING FOR ASPHALT INITIAL SETTING FOR CARPET ECCENTRIC BUSHINGS 0 5º 1 0º INITIAL SETTING FOR ASPHALT IN...

Page 18: ...JOINT 5 MM OPEN V2 8 303126 ALU SHIM 3x6x5 0MM 10 303129 COMPOSITE SET OF SHIMS 3x1MM 1x2MM 2 303210 REAR TURNBUCKLE L R 26 MM HUDY SPRING STEEL 2 303454 BALL JOINT 4 9MM OPEN 4 362652 BALL END 4 9MM WITH THREAD 10MM 2 372503 COMPOSITE SERVO SAVER X STIFF SET V2 372649 BALL END 4 2MM WITH 4MM THREAD 2 372661 COMPOSITE STEERING BALL JOINT OPEN 4 2 MM 4 902305 HEX SCREW SH M3x5 10 902306 HEX SCREW S...

Page 19: ...6 2 302610 ADJ TURNBUCKLE L R 40mm HUDY SPRING STEEL 2 3x6x2 5mm 5x8x2 5mm Tighten the screws gently but fully and then loosen 1 3 turn so the composite dual servo saver moves freely Tighten fully Loosen 1 3 ccw Check free movement 120 CCW 4 STEERING THREAD THREAD OIL NOTE ORIENTATION NOTE ORIENTATION Long side Ball joint open 302547 ALUSTEERINGPLATE8 5MMFORDUALSERVOSAVER ORANGE Optional 8 5mm alu...

Page 20: ...nd better steering response aluminum servo horns may be used IMPORTANT When an aluminum horn is used the steering servo saver is not used This increases the risk of breaking the servo in serious crashes HUDY ALU SERVO HORNS 293497 KO Sanwa 23T 293498 Hitec 24T 293499 Futaba 25T HUDY CLAMP ALU SERVO HORNS 293404 KO Sanwa 23T 293405 Hitec 24T 293406 Futaba 25T 302590 ALU DUAL SERVO SAVER SCREW M3x7 ...

Page 21: ... the flex setting adjustment There are three different flex setting alternatives The top deck is connected to the motor mount via bushing This setting provides maximum stability as it stiffens the entire car and eliminates flex to sides and front rear TOP DECK FLEX SETTINGS MEDIUM STIFF INITIAL SETTING INITIAL SETTING We recommend using optional 1 6mm top deck for super low traction conditions or ...

Page 22: ...ING HUDY SPRING STEEL 305241 DRIVE SHAFT REPLACEMENT CAP 3 5 MM 4 305253 ECS DRIVE SHAFT COUPLING FOR 2MM PIN HUDY SPRING STEEL 305254 ECS ES DRIVE SHAFT CASE FOR 2MM PIN HUDY SPRING STEEL 305328 ALU DRIVE SHAFT SWISS 7075 T6 HARDCOATED 50MM 305332 ECS ES ES DRIVE SHAFT 52MM HUDY SPRING STEEL SET 305341 DRIVE AXLE LIGHTWEIGHT HUDY SPRING STEEL 305346 ECS DRIVE AXLE FOR 2MM PIN HUDY SPRING STEEL 30...

Page 23: ...S UPRIGHTS 303352 0 2 HOLE MEDIUM OPTION 303354 0 2 HOLE HARD INCLUDED 303360 0 2 HOLE GRAPHITE OPTION The optional ECS ball bearing driveshafts feature a new ball bearing assembly at the inner end of the driveshaft where it inserts into the outdrive They offer a significant performance improvement over the standard blade type driveshafts The friction between the driveshaft and the outdrive is gre...

Page 24: ...that touches the body this will help prevent paint from being removed from the inside of the bodyshell Before inserting the screw use CA glue to seal strengthen the outside edges of the upstop Insert the screw carefully The set screw is used to help center the graphite upstop whereas the button head screw is used to adjust the height of the upstop It is important to have both left right upstops be...

Page 25: ...EAD 10mm THREAD REAR SUSPENSION L R 53 5mm Install the pivot balls with Professional Multi Tool HUDY 183011 2mm 5mm THREAD 10mm THREAD 2mm TIGHTEN GENTLY FRONT SUSPENSION L R 2x 55 5mm Install the pivot balls with Professional Multi Tool HUDY 183011 5 FRONT REAR TRANSMISSION TIGHTEN GENTLY INITIAL SETTING 1 1 25mm 2x L R L R INITIAL SETTING 2x 1 1 23mm 2x 307222 TITANIUM FRONT ARM PIVOT PIN 2 L R ...

Page 26: ...RPET none shim ASPHALT 2mm shim INITIAL SETTING L R 4x 2x OIL OIL BEARING OIL HUDY 106230 BEARING OIL HUDY 106230 Install the pivot balls with Professional Multi Tool HUDY 183011 5 FRONT REAR TRANSMISSION FREE MOVEMENT FREE MOVEMENT 2x INCLUDED REAR ANTI ROLL BARS 303801 REAR 1 1mm 303802 REAR 1 2mm 303803 REAR 1 3mm 303804 REAR 1 4mm 303805 REAR 1 5mm 303806 REAR 1 6mm INCLUDED FRONT ANTI ROLL BA...

Page 27: ...s move at the same time If they do the bars are set up correctly If not make sure that both downstops are the same and that the bar wire is flat If both sides still do not move at the same time adjust the length of the bar holders 3x4mm 3x4mm 3x2 5mm 3x2 5mm L R DETAIL CENTER DETAIL Set the bar into the center remove the play in the bushings and tighten the set screws fully ...

Page 28: ... downstops are the same and that the bar wire is flat L R INITIAL SETTING OUTER BALL Use the OUTER ball on medium high traction tracks The car will roll less which will make it easier to drive with more cornering speed Use the INNER ball on low traction tracks mainly low traction carpet tracks The car will have more traction more steering but will be more difficult to drive because the car will ro...

Page 29: ...308334 303241 303241 308354 K 308092 OPTION 308082 308037 308324 970131 972030 308037 308044 K 308327 K 308316 308334 965023 965023 308364 308264 FRONT 308286 REAR 4 holes Ø1 1mm INITIAL SETTING 308029 ULP ALU PROGRESSIVE SHOCK SYSTEM SET 2 Progressive shock system for touring cars for improved traction and steering characteristics Shock insert with 3 triangular cutouts used with piston WITHOUT ho...

Page 30: ...low the air bubbles to escape Add shock oil as necessary INCORRECT CORRECT NOTE ORIENTATION Foam insert OPTION SHOCK OIL SHOCK OIL SHOCK OIL SHOCK OIL CUTAWAY VIEW Be careful not to cross thread the collar on the shock body DETAIL After you insert the membrane ensure that it is fully seated inside the alu cap CUTAWAY VIEW DETAIL DETAIL 6 SHOCK ABSORBERS 104002 HUDY AIR VAC VACUUM PUMP Install the ...

Page 31: ... shaft into the shock body slowly otherwise air can come into the shock body which would create bubles 100 rebound do not do step 2 and 3 75 rebound repeat steps 1 to 3 until the shock shaft will push out 75 of its length 50 rebound repeat steps 1 to 3 until the shock shaft will push out 50 of its length 25 rebound repeat steps 1 to 3 until the shock shaft will push out 25 of its length 0 rebound ...

Page 32: ...960030 NUT M3 10 981212 PIN 2x12 10 301231 T4 FOAM BUMPER LIGHT STRONG 308308 K ULP ALU SHOCK ABSORBER SET BLACK 2 902310 902310 903308 301322 301322 981212 981212 301326 301219 301207 902312 301231 981212 301325 960030 301204 903310 303129 303129 308308 K 903310 303129 902308 902308 301336 301390 301336 306219 306219 301390 306219 306219 902312 902312 981212 308308 K FRONT BODY MOUNT SET 301322 0...

Page 33: ...sitions rearward center and forward Depending on the conditions the body post positions can be easily changed which allows the body to be moved The body in the REARWARD POSITION makes the car super stable and very easy to drive It makes the car easier to drive in chicanes and more predictable in high traction conditions The body in the CENTER POSITION makes the car more aggressive and steer faster...

Page 34: ...ck System Set for improved traction is available Please note that all these part are only for optional SLP shock absorbers and cannot be combined with ULP shock absorber parts SLP SHOCK ABSORBER PARTS 301962 SLP SHOCK TOWER FRONT 3 0MM GRAPHITE INITIAL SETTING DETAIL 2mm 2mm 1mm FRONT SHOCK SPRING C 2 5 2 8 FRONT BODY MOUNT SET 301322 0mm INCLUDED 301323 1mm OPTION 301324 2mm OPTION FRONT ECC BODY...

Page 35: ...ntward both on front and rear body posts at the same time 308307 O or 308307 K SLP ALU SHOCK ABSORBER SET 2 2mm 1mm 302962 SLP SHOCK TOWER REAR 3 0MM GRAPHITE SLP SHOCK ABSORBER PARTS For some very specific racing conditions like extremely low traction these SLP shocks with SLP Shock Tower are available Also optional SLP Alu Progressive Shock System Set for improved traction is available Please no...

Page 36: ...ACKSTOP 2 2 306201 ALU SERVO MOUNT LONG 306204 ALU SERVO MOUNT BLACK 306234 GRAPHITE FLOATING SERVO HOLDER NARROW 3 0MM 306301 ANTENNA MOUNT THIN 309402 BODY CLIP FOR 6MM BODY POST 4 326176 COMPOSITE LIPO BATTERY BACKSTOP 2 2 901305 HEX SCREW SB M3x5 10 902306 HEX SCREW SH M3x6 10 902308 HEX SCREW SH M3x8 10 902320 HEX SCREW SH M3x20 10 903306 HEX SCREW SFH M3x6 10 903308 HEX SCREW SFH M3x8 10 903...

Page 37: ...eak due to extra servo strain IMPORTANT From Servo DETAIL Attach servo arm to servo output shaft using screw from servo Servo saver must be perpendicular to chassis when servo is in neutral Motor Pinion NOT INCLUDED 901302 3x2 5mm set screw NOT INCLUDED Some motors do not have a chamfer on the motor housing If your motor does not have a chamfer on the housing and you want to use a small pinion the...

Page 38: ...ube does not hold the antenna properly apply a small drop of the CA glue to the outside end of the antenna tube while inserting it into the holder Make sure not to apply glue to the inside of the antenna tube or the antenna wire may get permanently stuck CA 5mm 306551 XRAYPURETUNGSTEN CHASSIS WEIGHT 11g NOTE ORIENTATION To ensure correct functioning of the battery holder do not overtighten the scr...

Page 39: ...to help improve traction and makes it more stable and easier to drive It is very important that battery has a very small amount of play in all directions so it does not tweak the car but the play cannot be too much otherwise the battery may fall out in crashes Make sure to have a small amount of play Make sure to have a small amount of play Make sure to have a small amount of play Make sure to hav...

Page 40: ...291 302296 303122 K 303212 362648 302663 902310 302350 302350 302296 ALU C HUB ACTIVE REAR SUSP 302350 0º INCLUDED 302351 2º RIGHT OPTION 302352 2º LEFT OPTION 302353 4º RIGHT OPTION 302354 4º LEFT OPTION 7 FINAL ASSEMBLY Make sure the wheel nuts are very tight so the wheels do not loosen during operation ALU REAR WING SHIM 353561 SILVER XRAY OPTION 293561 SILVER HUDY OPTION 293561 O ORANGE HUDY O...

Page 41: ... 2x L R 902205 SH M2x5 940510 BB 5x10x4 980210 P 2x10 902310 SH M3x10 4mm THREAD 10mm THREAD DRIVE SHAFTS 305323 50MM STEEL 305333 50MM ECS Install the pivot balls with Professional Multi Tool HUDY 183011 1 1 25mm 2x L R 307322 TITANIUM REAR ARM PIVOT PIN 2 L R INITIAL SETTING 2x 1mm 1mm ALU C HUB ACTIVE REAR SUSP 302350 0º INCLUDED 302351 2º RIGHT OPTION 302352 2º LEFT OPTION 302353 4º RIGHT OPTI...

Page 42: ...w medium traction conditions By adding more shims on the top of the steering block the toe in is more increasing under pressing the car The effect of the toe in change can be checked on a set up station Set the desired toe in than press the car to the ground and check how much the toe in changes and in which direction OPTION 1mm 1mm 1mm The optional ARS aluminum C hubs were redesigned to work with...

Page 43: ...sis more forward which leads to increased steering and steering response Recommended for conditions where better steering response is needed Makes the car more reactive but less stable 306235 306205 OPTION FLOATING FORWARD MOUNT SERVO HOLDER From Servo 902306 SH M3x6 5mm 3x6mm 3x10mm 3x6mm 3x6mm 3x6mm 903306 SFH M3x6 903310 SFH M3x10 ...

Page 44: ...er you need to mount the set screw for mounting shock to the LOWER hole DETAIL If you use ULP lower graphite shock tower you need to move the body post one hole higher 301961 302961 ULP LOWER SHOCK TOWER FOR LOWER SHOCK MOUNTING FRONT ULP LOWER SHOCK TOWER FOR LOWER SHOCK MOUNTING REAR 1mm 1mm 1mm 1mm 2mm 2mm 2mm 2mm 2mm 2mm 3x10mm 3x10mm 3x6mm 3x6mm 3x6mm 3x6mm The new feature of the arms is to m...

Page 45: ...45 NOTE ...

Page 46: ...DY BODY GAUGE 1 10 ELECTRIC TOURING CARS 107855 HUDY PIT LED 107865 HUDY PROFESSIONAL DIGITAL POCKET SCALE 300G 0 01G 107870 HUDY FIBRE REINFORCED TAPE BLACK 107875 HUDY ULTRA DOUBLE SIDED TAPE 107880 CHASSIS BALANCING TOOL 2 107904 HUDY QUICK TWEAK STATION 1 10 1 12 ON ROAD 107905 HUDY TWEAK BOARD SET 108150 HUDY 1 10 TOURING CAR STAND V3 108190 HUDY ALU TRAY FOR PARTS 108201 FLAT SET UP BOARD FO...

Page 47: ...L 181110 HUDY BALL JOINT WRENCH 183000 HUDY PROFESSIONAL BULKHEAD ALIGNMENT TOOL 19MM 183011 HUDY PROFESSIONAL MULTI TOOL 188981 HUDY POCKET HOBBY KNIFE 188990 HUDY PROFESSIONAL BODY SCISSORS 199060 HUDY ALU TOOL STAND 199181 HUDY CAR BAG 1 10 ON ROAD TC PAN CAR CUSTOM NAME 199270 HUDY LIPO SAFETY BAG CUSTOM NAME 199911 HUDY PIT MAT ROLL 750X1200MM WITH PRINTING 293110 HUDY BRUSHLESS RC FAN 30MM 2...

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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