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Xray XT4 Instruction Manual
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Xray XT4 Instruction Manual

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I N S T R U C T I O N M A N U A L
F O R X T 4 ' 2 3 E D I T I O N

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Summary of Contents for Xray XT4

  • Page 1 I N S T R U C T I O N M A N U A L F O R X T 4 ' 2 3 E D I T I O N...
  • Page 2 Fax: (214) 744-2401 of our customers. E-mail: info@teamxray.com E-mail: xray@rcamerica.com 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 reference, even after completing the assembly. Use only genuine and original...
  • Page 3 Therefore we ask you, if at all possible, to purchase • For the best performance, it is very important that great care is taken to XRAY products at your hobby dealer and give them your support like we do. ensure the free movement of all parts.
  • Page 4 TOOLS REQUIRED Allen 1.5mm (#111545 - HUDY EXCLUSIVE Limited Edition) Combination Pliers (HUDY #189020) Allen 2.0mm (#112045 - HUDY EXCLUSIVE Limited Edition) Arm Reamer 3.0mm (#107643 - HUDY EXCLUSIVE Limited Edition) Side Cutters (HUDY #189010) Socket 5.5mm (#175535 - HUDY EXCLUSIVE Limited Edition) Socket 7.0mm (#177035 - HUDY EXCLUSIVE Limited Edition) Pocket Hobby Knife (HUDY #188981) Reamer (#107602 - HUDY EXCLUSIVE Limited Edition)
  • Page 5 NOT INCLUDED Follow Set-Up Book: XRAY offers wide range of optional tuning parts which are SAMPLE OF OPTIONAL PARTS listed in a table like this. Please refer to the exploded view To ensure that you always have access to the most up-to-date version of the Set-up...
  • Page 6 941014 304932 971050 364962 964031 304980 964050 964050 304932 304990 304932 #365100 364940 XRAY XB4 ACTIVE DIFFERENTIAL 981210 FRONT/REAR - SET 971050 964031 364920 #364912-G 941014 GEAR DIFFERENTIAL CASE - LARGE VOLUME - GRAPHITE 364962 ACTIVE DIFF SEGMENTS 903258 #325123 60º...
  • Page 7 1. FRONT & REAR DIFFERENTIAL Front diff Rear diff 30.000cSt 10.000cSt Silicone oil Silicone oil Fill just above the Fill just above the cross-pins. cross-pins. 964031 S 3.5x10x0.2 PROPER AMOUNT OF OIL IN THE DIFFS Use a digital scale to measure the exact amount of oil in the diff.
  • Page 8 1. GEAR CENTER DIFFERENTIAL 980210 #365101 XRAY XB4 ACTIVE DIFFERENTIAL - CENTER - SET 364912 964031 364963 SHORT 304930 971050 304980 304990 ACTIVE DIFF SEGMENTS 964050 304930 #325123 60º OPTION CENTER DIFF SPUR GEARS 364913 #364978 78T/48 OPTION #325125 90º...
  • Page 9 1. GEAR CENTER DIFFERENTIAL Center diff 100.000cSt Silicone oil Fill just above the cross-pins. 964031 S 3.5x10x0.2 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 Fill differential up to the top of the to expand.
  • Page 10 365127 902305 362370 362006 XRAY BALL-BEARING #359050 5x10x4 GREASE OPTION #365100 #940510 5x10x4 OIL INCLUDED XRAY XB4 ACTIVE DIFFERENTIAL #940814 8x14x4 GREASE OPTION FRONT/REAR - SET #940815 8x14x4 OIL INCLUDED BALL-BEARING HUB #324172 1 DOT OPTION #324172 2 DOTS OPTION...
  • Page 11 2. REAR CENTRAL TRANSMISSION NOTE ORIENTATION ➌ 902305 LOWEST 3 DOTS SH M3x5 Bearing Oil (HUDY #106230) ➋ 8x14x4mm ➊ GRAPHITE GREASE (HUDY #106210) 5x10x4mm 940510 BB 5x10x4 Bearing with BLUE ➍ rubber covers NOTE ORIENTATION ➎ ➏ 940815 DETAIL BB 8x14x4 REAR BEVEL DRIVE GEAR LOWEST...
  • Page 12 2. FRONT CENTRAL TRANSMISSION #365100 XRAY XB4 ACTIVE DIFFERENTIAL FRONT/REAR - SET ACTIVE DIFF SEGMENTS #325123 60º OPTION 902312 #325125 90º INCLUDED #325127 120º OPTION 362006 324172 365444 364903+364940 940510 981208 365127 362373 902305 940815 BALL-BEARING HUB #324172 1 DOT...
  • Page 13 2. FRONT CENTRAL TRANSMISSION NOTE ORIENTATION ➌ NOTE ORIENTATION DETAIL 902305 ANGLED HUB Bearing Oil SH M3x5 8x14x4mm 3 DOTS (HUDY #106230) ➋ ➊ GRAPHITE GREASE ➍ 5x10x4mm (HUDY #106210) Bearing with BLUE ➎ NOTE ORIENTATION rubber covers THREAD LOCK 940510 BB 5x10x4 ➏...
  • Page 14 3. REAR SUSPENSION 903312 363325 362315 367210 363316 362315 902308 306219 362478 903312 901304 323112-M 362006 901303 303431-K 303454 901308 303454 ANTI-ROLL BARS #362470 1.0mm OPTION #362471 1.1mm OPTION #362472 1.2mm OPTION #362473 1.3mm OPTION REAR SUSPENSION ARMS #362474 1.4mm OPTION #323112-M MEDIUM INCLUDED #362476 1.6mm OPTION...
  • Page 15 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).
  • Page 16 3. REAR SUSPENSION 901308 SB M3x8 DETAIL 1.5mm ANTI-ROLL BARS 901303 #362470 1.0mm OPTION SB M3x3 #362471 1.1mm OPTION #362472 1.2mm OPTION #362473 1.3mm OPTION 901304 STEP DETAIL SB M3x4 ➌ #362474 1.4mm OPTION DETAIL #362476 1.6mm OPTION #362478 1.8mm INCLUDED 902308 #362480 2.0mm...
  • Page 17 BALL JOINT 4.9MM - OPEN (4) 367210 SUSPENSION PIVOT PIN (2) 306219 COMPOSITE SET OF SERVO SHIMS (4) 322112-M XT4 COMPOSITE SUSPENSION ARM FRONT LOWER - MEDIUM 901303 HEX SCREW SB M3x3 (10) 361201 COMPOSITE FRONT BUMPER - ONE HOLE 901304...
  • Page 18 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).
  • Page 19 3. FRONT SUSPENSION 901308 DETAIL SB M3x8 1.5mm 902308 SH M3x8 STEP DETAIL ➌ ANTI-ROLL BARS DETAIL 901303 #362470 1.0mm OPTION SB M3x3 #362471 1.1mm OPTION #362472 1.2mm OPTION 901304 #362473 1.3mm OPTION SB M3x4 #362474 1.4mm OPTION #362476 1.6mm OPTION 3x3mm #362478 1.8mm...
  • Page 20 ALU REAR HUB PLATE FOR MULTI ADJ. UPRIGHT - 1-HOLE 941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2) 325315 XT4 REAR DRIVE SHAFT 94MM WITH 2.5MM PIN - HUDY SPRING STEEL™ 960030 NUT M3 (10) 325340 REAR DRIVE AXLE LB - HUDY SPRING STEEL™...
  • Page 21 P 2x10 Bearing with BLACK Rear - more traction Rear - less traction rubber covers Front - more steering Front - less steering 902205 XRAY BALL-BEARINGS SH M2x5 REAR UPRIGHTS #940512 5x12x4 OIL OPTION #323354-H HARD INCLUDED #941015 10x15x4 OIL...
  • Page 22 4. REAR TRANSMISSION 306219 Use 0.1mm or 0.3mm shim SHIM 3x6x2 LONGER WHEELBASE (INITIAL SETTING) to adjust the play. Adjustment Shim IN FRONT OF HUB moves hub rearward. 3x6x0.1mm 902254 SH M2.5x4 3x6x0.3mm 962030 S 3x6x0.3 3x6x2mm SHORTER WHEELBASE Adjustment Shim BEHIND HUB moves hub forward.
  • Page 23 ADJ. TURNBUCKLE 70MM M3 L/R - HUDY SPRING STEEL™ (2) 365470 COMPOSITE DRIVE SHAFT SAFETY COLLAR (3) 325317 XT4 FRONT DRIVE SHAFT 99MM WITH 2.5MM PIN - HUDY SPRING STEEL™ 327220 FRONT ARM PIVOT PIN (2) 359050 BALL-BEARING 5x10x4 STEEL SEALED - GREASE (2) 362210-H COMPOSITE C-HUB 9°...
  • Page 24 OPTION #106220 - STANDARD #362250-H HARD INCLUDED #106221 - BLUE 359050 #362250-G GRAPHITE OPTION #106222 - RED BB 5x10x4 XRAY BALL-BEARINGS #940510 5x10x4 OIL OPTION 5x10x4mm #940512 5x12x4 OIL OPTION Bearing with STEEL 940513 5x12x4mm #359050 5x10x4 GREASE INCLUDED covers...
  • Page 25 4. FRONT TRANSMISSION Check for free movement. 902254 SH M2.5x4 TIGHTEN TIGHTEN GENTLY GENTLY (HUDY #107633) ARM REAMER If the C-hub does not move freely, use a HUDY Arm Reamer to resize the hole. 52mm THREAD THREAD THREAD Install the pivot balls with Professional Multi Tool (HUDY #183011).
  • Page 26 4. FRONT & REAR ASSEMBLY ALU NUTS M3 FRONT GRAPHITE CHASSIS T-BRACE #296530-B BLUE OPTION 902306 361289 #296530-K BLACK OPTION 902314 #296530-O ORANGE OPTION 366011 #960031 SILVER OPTION 903306 902310 361190 902318 902306 902308 326177 960030 361288 902312 960030 366143 361286-H 903310 361297...
  • Page 27 4. FRONT & REAR ASSEMBLY #361271 CARBON FIBER CHASSIS SIDE GUARD L+R 903308 SFH M3x8 903310 SFH M3x10 960030 3x10mm N M3 ALU NUTS M3 #296530-B BLUE OPTION #296530-K BLACK OPTION 3x8mm #296530-O ORANGE OPTION #960031 SILVER OPTION 3x10mm CHASSIS FLEX NOTE 3x10mm #361191...
  • Page 28 4. FRONT & REAR ASSEMBLY 902314 SH M3x14 After you mount the rear suspension assembly to the chassis, fully tighten all 4 screws that were previously left untightened (page 27 , step 2). 903310 SFH M3x10 DETAIL 902312 SH M3x12 903310 SFH M3x10 After you mount the front suspension...
  • Page 29 4. FRONT & REAR ASSEMBLY #366161 Choose the diameter of O-ring to best eliminate play between the battery and post without being too tight. 6x5mm 902318 6x4mm SH M3x18 6x3mm ORIENTATION FOR 6x2mm LOW BATTERY PACK Battery (NOT INCLUDED) 903310 SFH M3x10 ORIENTATION FOR STANDARD BATTERY PACK...
  • Page 30 5. STEERING 903316 362571 332660 322611 303123 363241 303123 363241 332660 332660 362581 303122 903316 322611 902308 940508 903318 362540 362290 332660 362510 363241 303123 303122 362290 940508 902310 #362510-G COMPOSITE SERVO SAVER - GRAPHITE 362510 362510 332540 902310 970100 332561 #362574 940508...
  • Page 31 5. STEERING THREAD LOCK 970100 O 10x1.5 INITIAL PRELOAD SETTING DETAIL 1~2mm CLEANER SERVO SAVER NOTE ORIENTATION STEERING PLATE #362571 HARD INCLUDED #362571-G GRAPHITE OPTION #362575 OPTION 902310 SH M3x10 Increases steering precision and predictability and is recommended for use in high-traction conditions. Includes extra Ackermann positions for very precise steering adjustment.
  • Page 32 5. STEERING 903308 SFH M3x8 50mm THREAD Install the pivot balls with Professional Multi Tool (HUDY #183011). THREAD 303123 SHIM 3x6x2 NOTE ORIENTATION Adjustment block towards outside. 3x16mm 903316 SFH M3x16 view INITIAL POSITION DETAIL NOTE ORIENTATION Adjustment block towards outside. 3x18mm 903318 SFH M3x18...
  • Page 33 902308 ONE-WAY SLIPPER CLUTCH SET 902318 361176 364013 365435 #364025 ALU CENTRAL BULKHEAD 364023 365436 #365101 XRAY XB4 ACTIVE 903308 DIFFERENTIAL - CENTER - SET #365434 903308 CENTRAL DOGBONE DRIVE SHAFT 47MM 972030 ACTIVE DIFF SEGMENTS #364024 #361159 ALU CENTRAL BULKHEAD #325123 60º...
  • Page 34 6. CENTER DIFF ASSEMBLY BEARING OIL (HUDY #106230) 941015 NOTE ORIENTATION BB 10x15x4 BEARING OIL (HUDY #106230) 972030 O 3x2 #365101 XRAY XB4 ACTIVE ACTIVE DIFF SEGMENTS DIFFERENTIAL - CENTER - SET #325123 60º OPTION #325125 90º INCLUDED #325127 120º OPTION 902308...
  • Page 35 7. SHOCK ABSORBERS PISTONS DETAIL holes holes holes (Create custom holes) (1.6mm) (1.7mm) (0mm - use required drill pin) Thick Shim Thin Shim Thick Shim 368010 holes holes holes (Create custom holes) 965023 (1.6mm) (1.7mm) (0mm - use required drill pin) 368031 368260 These pistons can NOT...
  • Page 36 7. SHOCK ABSORBERS ➋ ➌ There are two different thickness shims, use them as shown. Use the same procedure when 965023 ➊ C 2.3 building both front and rear shocks. THICK Shim 2 holes (1.6mm) 970080 O 8x1 O-ring O-ring INITIAL PISTON 972031 O 3x2.1...
  • Page 37 7. SHOCK ABSORBERS 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. UP-STOP SHIM To avoid collision of the drive shaft with diff outdrives use the up-stop travel shims to set-up the up-stop travel.
  • Page 38 COMPOSITE RADIO PLATE - SHORT 363510 LEXAN REAR WING (2) 366205 ALU SERVO MOUNT 22MM - BOTH SIDES THREADED 369707 XRAY XT4 BODY 366231 GRAPHITE SERVO HOLDER 329912 STADIUM TRUCK WHEEL AERODISK WITH 12MM HEX - WHITE (2) 368045 STEEL SCREW SHOCK PIVOT BALL WITH HEX (2)
  • Page 39 8. FINAL ASSEMBLY 902312 ➋ SH M3x12 ➊ 960030 N M3 ➍ NOTE ORIENTATION INITIAL POSITION DETAIL ➌ DETAIL INITIAL POSITION ➋ 902312 SH M3x12 ➊ 960030 N M3 ➍ NOTE ORIENTATION INITIAL POSITION DETAIL ALU NUTS M3 ➌ #296530-B BLUE OPTION DETAIL #296530-K BLACK...
  • Page 40 8. FINAL ASSEMBLY SERVO LINK Adjust servo link to fit your servo. 28mm THREAD THREAD 6mm THREAD INITIAL SETTING Install the pivot balls with Professional Multi Tool (HUDY #183011). 6mm THREAD HUDY ALU SERVO HORNS NOTE 3x6mm #293497 ORIENTATION 902306 #293498 SH M3x6 #293499...
  • Page 41 8. FINAL ASSEMBLY Motor (NOT INCLUDED) NOTE ORIENTATION 902310 SH M3x10 ➌ NOTE ➊ ORIENTATION ➋ Pinion (NOT INCLUDED) PINIONS #365718 18T / 48P #305919 19T / 48P #294020 20T / 48P #294021 21T / 48P #294022 22T / 48P #294023 23T / 48P #305924...
  • Page 42 8. FINAL ASSEMBLY #107876 Speed Controller HUDY ULTRA THIN DOUBLE- 903310 (NOT INCLUDED) SIDED TAPE - SINGLE STRIP (5) SFH M3x10 #107875 DOUBLE-SIDED TAPE ANTENNA ALTERNATIVE (OPTION) Receiver (NOT INCLUDED) Antenna #306310 (NOT INCLUDED) Mount #306301 (NOT INCLUDED) #107876 HUDY ULTRA THIN DOUBLE- SIDED TAPE - SINGLE STRIP (5) #107875 DOUBLE-SIDED TAPE...
  • Page 43 (HUDY #188990) BODY REAMER (HUDY #107602) REAR WING SHIM #293561 SILVER OPTION #293561-O ORANGE OPTION #293561-K BLACK OPTION XRAY LEXAN REAR WINGS #323510 1.0mm OPTION #323511 1.5mm OPTION #323513 1.0mm RANK OPTION #323517 1.0mm TEC OPTION #363510 1.0mm INCLUDED #363511 1.5mm OPTION #363512 2.0mm...
  • Page 44 8. FINAL ASSEMBLY Before cutting and making holes on the BODY, put the unpainted body on the chassis to Paint the body using paints formulated for polycarbonate bodies. ➊ ➎ 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 When the paint is dry, remove the masking.
  • Page 45 8. FINAL ASSEMBLY 960240 N M4 Tires & Inserts (NOT INCLUDED) MAINTENANCE 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.
  • Page 46 199183 104004 108201 108205 108203 108204 106000 106036 109801 108840 107701 181090 107740 107742 181030 293110 104004 HUDY AIR VAC - VACUUM PUMP - 1/10 OFF-ROAD 108160 HUDY 1/10 OFF-ROAD CAR STAND - V2 108190 HUDY ALU TRAY FOR PARTS 105500 HUDY UNIVERSAL TIRE BALANCING STATION 105520...
  • Page 47 199270 107855 109880 199060 298100 109840 108160 183011 105520 107090 107601 177035 105550 108960 175535 112045 108905 132045 109860 111545 107880 153055 108190 188990 109880 HUDY ALU TRAY FOR ACCESSORIES & PIT LED 199183 HUDY CAR BAG - 1/10 OFF-ROAD 111545 LIMITED EDITION - ALLEN WRENCH # 1.5MM 199270...
  • Page 48 RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.com /TeamXray /TeamXray /TeamXray /TeamXrayRC /XrayRacing /XrayRacing...