Xray XB4 Instruction Manual
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Xray XB4 Instruction Manual

1/10 luxury off-road car 4wd
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Summary of Contents for Xray XB4

  • Page 1 2O 1 6...

  • Page 2: Safety Precautions

    Phone: (800) 519-7221 * (214) 744-2400 many other goodies. We pride ourselves on taking excellent care of our customers. Fax: +421-32-7401109 Fax: (214) 744-2401 You can join thousands of XRAY fans and enthusiasts in our online community at: Email: info@teamxray.com Email: xray@rcamerica.com www.teamxray.com Failure to follow these instructions will be considered as abuse and/or neglect.
  • 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 ensure XRAY products at your hobby dealer and give them your support like we do. If the free movement of all parts.

  • Page 4: Equipment Required

    Allen 1.5mm Socket 7.0mm Allen 2.0mm EQUIPMENT INCLUDED INCLUDED XRAY offers wide range of optional XRAY Premium Silicone Oils Graphite Grease Follow Set-Up Book To ensure that you always have access SAMPLE OF tuning parts which are listed in a...
  • Page 5 Please follow the Instruction Manual and seal the edges of the shock towers with CA to reinforce them and help Follow this tech tip to protect the following graphite parts: prevent delamination. Fine sandpaper Protect all XB4 Graphite Parts: • Front shock tower Use fine sandpaper to Apply CA glue to all edges •...
  • Page 6 1. FRONT & REAR DIFFERENTIAL 941015 BEVEL & SATELITTE GEARS + PINS 981210 #304932 + #304980 COMPOSITE (STANDARD) #335030 + #335080 STEEL (OPTION) 964031 BEVEL GEARS 972050 #364935 GRAPHITE (OPTION) 304932 364960 #364945 ALU (OPTION) #364955 STEEL (STANDARD) 304980 364910 964050 964050 304932...
  • Page 7 FRONT & REAR DIFFERENTIAL Front diff Rear diff 8 000cSt 8 000cSt Silicone oil Silicone oil Fill just above the Fill just above the satellite gears. satellite gears. 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: Rear Central Transmission

    2. REAR CENTRAL TRANSMISSION MARKED “R“ DETAIL 363081 902310 IMPORTANT REAR BLOCK 365427 980210 365470 362003 365230 365440 940510 365134 364900+364955 940815 902306 DRIVE SHAFT COLLAR #365470 COMPOSITE (STANDARD) #365471-K ALU - BLACK (OPTION) #365471-O ALU - ORANGE (OPTION) 362003 BEVEL DRIVE GEARS 902310 #365114...
  • Page 9 REAR CENTRAL TRANSMISSION When installing the gear on the axle, make sure the flat spot of the gear sits on the flat spot of the axle. DETAIL 902306 SH M3x6 NOTE ORIENTATION ➍ 940510 BB 5x10x4 ➊ NOTE ORIENTATION DETAIL IMPORTANT GRAPHITE GREASE REAR BLOCK...

  • Page 10: Front Central Transmission

    2. FRONT CENTRAL TRANSMISSION MARKED “F“ DETAIL 365426 980210 IMPORTANT FRONT BLOCK 365440 940510 365230 365470 365134 364900+ 364955 362002 940815 362002 902306 DRIVE SHAFT COLLAR #365470 COMPOSITE (STANDARD) #365471-K ALU - BLACK (OPTION) 902310 #365471-O ALU - ORANGE (OPTION) BEVEL DRIVE GEARS 362082 #365114...
  • Page 11 FRONT CENTRAL TRANSMISSION When installing the gear on the axle, make sure the flat spot of the gear sits on the flat spot of the axle. DETAIL 902306 SH M3x6 NOTE ORIENTATION ➍ 940510 BB 5x10x4 ➊ NOTE ORIENTATION DETAIL IMPORTANT FRONT BLOCK THREAD LOCK...

  • Page 12: Rear Suspension

    3. REAR SUSPENSION 903312 363121 363321 362315 367210 SUSPENSION ARM REAR LOWER #363111 RIGHT - STANDARD #363121 LEFT - STANDARD 362315 #363111-G RIGHT - GRAPHITE #363121-G LEFT - GRAPHITE 363111 363121 902308 363311 363111 903312 901304 362003 ANTI-ROLL BARS #362470 1.0mm (OPTION) 901303 #362471 1.1mm (OPTION) #362472 1.2mm (STANDARD)
  • Page 13 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 14 REAR SUSPENSION 901308 SB M3x8 DETAIL 1.5mm 901303 SB M3x3 STEP DETAIL ➌ DETAIL 901304 SB M3x4 902308 SH M3x8 3x3mm ➌ ➋ 1.2mm ➊ 3x4mm 3x8mm DETAIL DETAIL Step ➊ Loosen the 3x4 setscrew if the anti-roll bar does not Step check for free movement ➊...

  • Page 15: Front Suspension

    3. FRONT SUSPENSION SUSPENSION ARM FRONT LOWER #362112 STANDARD #362112-G GRAPHITE 903312 362315 362320 367210 362310 362315 903312 362112 361200 902308 362112 901303 303454 901308 303431-K 362002 901304 303454 902308 Remove the 3x6.5x2mm shim from each front arm. ANTI-ROLL BARS #362470 1.0mm (OPTION) #362471...
  • Page 16 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 17 FRONT SUSPENSION 901308 DETAIL SB M3x8 1.5mm 902308 SH M3x8 STEP DETAIL ➌ DETAIL 901303 SB M3x3 901304 SB M3x4 3x3mm 902308 ➌ SH M3x8 ➋ 1.3mm ➊ 3x4mm 3x8mm DETAIL DETAIL Step ➊ Loosen the 3x4 setscrew if the anti-roll bar does not Step check for free movement ➊...
  • Page 18 4. REAR TRANSMISSION 363520 DRIVE SHAFT COLLAR #365470 COMPOSITE (STANDARD) #365471-K ALU - BLACK (OPTION) #365471-O ALU - ORANGE (OPTION) REAR UPRIGHTS #363353 COMPOSITE (STANDARD) 365320 980210 #363351 ALU (OPTION) 363353 365470 365230 365340 902205 902310 940510 302665 940512 306219 365350 WHEEL HUBS 12MM WHEEL HUBS 14MM...
  • Page 19 REAR TRANSMISSION SHORTER WHEELBASE Ensure that the rear upright moves freely. If DETAIL 901306 it does not move freely, use sandpaper to thin Alternative Shim BEHIND HUB moves hub forward. Check for free SB M3x6 both wheelbase adjustment shims. movement 306219 SHIM 3x6x2 LONG...
  • Page 20 4. FRONT TRANSMISSION 302665 C-HUBS DRIVE SHAFT COLLAR 362652 #362210 RIGHT 9° (STANDARD) #365470 COMPOSITE (STANDARD) 362280 362610 362651 #362211 RIGHT 6° (OPTION) #365471-K ALU - BLACK (OPTION) 303122 #362234 ALU RIGHT 12° (OPTION) #365471-O ALU - ORANGE (OPTION) 960030 #362220 LEFT 9°...
  • Page 21 FRONT TRANSMISSION Check for free movement 901306 SB M3x6 DETAIL DO NOT OVERTIGHTEN ➋ 20mm (HUDY #107633) ARM REAMER If the C-hub does not move freely, use a HUDY Arm Reamer to NOTE resize the hole. ORIENTATION ➊ RIGHT THREAD 33.5 mm 10mm THREAD...
  • Page 22 4. FRONT & REAR ASSEMBLY 902316 902312 361320 361182 960030 961032 903314 361296 361297 960030 361267 961032 361267 361104 902314 903310 903310 903310 903310 902314 903308 903310 90 3308 HEX SCREW SFH M3x8 (10) 36 1182 COMPOSITE REAR LOWER BRACE 90 3310 HEX SCREW SFH M3x10 (10) 36 1296...
  • Page 23 FRONT & REAR ASSEMBLY #361265 COMPOSITE CHASSIS SIDE GUARDS L+R (MEDIUM) 903308 SFH M3x8 903310 SFH M3x10 The Medium side guards increase chassis flex and are recommended for low-traction tracks. 903314 SFH M3x14 960030 N M3 961032 3x10mm S 3.2 3x14mm 3x8mm 3x8mm...
  • Page 24 4. FRONT & REAR ASSEMBLY #361178 3x16mm GRAPHITE REAR CHASSIS BRACE UPPER DECK 2.0MM Use to increase the traction. 902314 SH M3x14 When using optional graphite chassis brace this plastic brace must be removed. After you mount the rear suspension assembly to the chassis, fully tighten all 4 screws that were previously left untightened (page 23, step 2).
  • Page 25 5. STEERING 361322 STEERING PLATE #362571 COMPOSITE (STANDARD) 361174 #362573 ALU (OPTION) 902310 902308 940508 362290 903308 303125 362510 362571 302665 940508 902310 352610 362280 362540 302665 362290 362652 362510 302665 902310 362510 352610 332561 302665 332540 940508 970100 362550 303125 903310 30 2665...
  • Page 26 STEERING 303125 #362573 SHIM 3x6x3 3x8mm ALU STEERING PLATE 4-HOLE 3x6x3mm 3x8mm Increases steering precision 902308 902310 predictability and is recommended for SH M3x8 SH M3x10 use in high-traction conditions. Includes extra Ackermann positions for very precise steering adjustment. 903308 SFH M3x8 3x10mm 940508...

  • Page 27: Slipper Clutch Assembly

    6. SLIPPER CLUTCH ASSEMBLY #364901 GEAR CENTER DIFFERENTIAL - SET 361320 902308 364112 902308 361187 941015 364131 #364021 980212 903308 ALU CENTRAL BULKHEAD 981208 364121 364131 364022 361175 364131 365881 902318 903308 364140 364190 364012 902305 364120 364180 901304 SLIPPER CLUTCH SPUR GEARS 364171 #365875 75T / 48...
  • Page 28 SLIPPER CLUTCH ASSEMBLY ALTERNATIVE 1 TIGHTEN GENTLY FORWARD WEIGHT POSITION 903308 SFH M3x8 (INITIAL SETTING) NOTE ORIENTATION 902318 SH M3x18 FORWARD WEIGHT POSITION More traction on the front suspension, increases rotation of the car in corner, recommended for use on medium- and high-traction tracks. ALTERNATIVE 2 #365425 Central Drive Shaft 95mm #365428 Central Drive Shaft 82mm...
  • Page 29 SLIPPER CLUTCH ASSEMBLY SLIPPER CLUTCH ADJUSTMENT The Slipper Clutch can be adjusted by loosening the set-screw and then, while keeping the Untighten set-screw ➊ tool inside of the set-screw, rotating the spur gear by hand as indicated in the drawing. Adjust ➋...

  • Page 30: Shock Absorbers

    7. SHOCK ABSORBERS PISTONS DETAIL 368010 holes holes holes holes holes holes (Create custom holes) 965023 (1.4mm) (1.3mm) (1.0mm) (1.1mm) (1.2mm) (0mm - use required drill pin) 368030 368160 363240 368120 Thick Shim Thick Shim Thin Shim 902205 970120 306219 970080 368260 972030...
  • Page 31 SHOCK ABSORBERS Downstop shim. THICKER shim used, INITIAL SETTING GREATER downstop is achieved. EXTREMELY IMPORTANT 306219 IMPORTANT SHIM 3x6x1 Always use same shim thickness on right 2mm 3mm and left side to achieve same downstop. ➋ ➋ 3x6x1mm ➊ 3x6x1mm ➊...
  • Page 32 SHOCK ABSORBERS FRONT SHOCKS (SHORT) IMPORTANT REAR SHOCKS (LONG) Both FRONT SHOCKS must be the same overall length. Both REAR SHOCKS must be the same overall length. SHORT FRONT SHOCKS LONG REAR SHOCKS Short Springs Long Springs ALTERNATE SHOCK REBOUND SETTING (50% AND 100%) The default shock rebound setting is 0% (as described on page 34).

  • Page 33: Final Assembly

    36 3510 LEXAN REAR WING (2) 36 6142 COMPOSITE BATTERY HOLDER STAND (2) 36 9703 XRAY XB4 BODY - WIDE - V2 36 6160 FOAM SPACER FOR BATTERY 36 9910 FRONT WHEELS AERODISK - WHITE - V2 (2) 36 6200...
  • Page 34 FINAL ASSEMBLY ➋ 960030 INITIAL POSITION N M3 ➊ ➍ NOTE 902316 ORIENTATION SH M3x16 ➌ 960030 INITIAL POSITION ➋ N M3 ➊ ➍ 902312 SH M3x12 NOTE ORIENTATION ➌ SERVO LINK Adjust servo link to fit your servo. 6mm THREAD RIGHT 28mm THREAD...
  • Page 35 FINAL ASSEMBLY SHORT LONG 903310 SFH M3x10 ➋ 902310 NOTE SH M3x10 ORIENTATION ➊ PINION (NOT INCLUDED) ➊ PINIONS #365718 18T / 48P ➋ #365719 19T / 48P #365720 20T / 48P #365721 21T / 48P Loosen the screw ➊ #365722 22T / 48P #365723 23T / 48P Insert motor into the bulkhead...
  • Page 36 FINAL ASSEMBLY Step Step Install the brace. ➋ ➌ NOTE ORIENTATION Slide the cables in the highlighted area. DETAIL 902308 SH M3x8 DETAIL Step Remove these 4 screws. ➊ Step Install the center upper deck. ➍ SPEED CONTROLLER (NOT INCLUDED) 903308 RECEIVER SFH M3x8...
  • Page 37 FINAL ASSEMBLY ALTERNATIVE 1 ALTERNATIVE 2 FORWARD WEIGHT BALANCE POSITION REARWARD WEIGHT BALANCE POSITION EXTRA LONG BATTERY HOLDER (INITIAL SETTING) LONG BATTERY HOLDER (#366115) ➌ (#366114) ➋ 902312 ➋ SH M3x12 903310 SFH M3x10 ➍ ➍ NOTE ORIENTATION The foam battery spacer can be installed (INITIAL either in front or behind the battery.
  • Page 38 FINAL ASSEMBLY 960240 N M4 REAR WHEEL (WIDE) FRONT WHEEL (NARROW) 903308 SFH M3x8 OPTIONAL WING SHIM #293561 ALU REAR WING SHIM SILVER (OPTION) #293561-O ALU REAR WING SHIM ORANGE (OPTION) FINAL ASSEMBLY VIEW...
  • Page 39 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. The following procedures are recommended to clean all of the bearings in your off-road car. For high-competition racing, we recommended doing this every 3-4 weeks, or before a major race.
  • Page 40 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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