Xray XB808 Instruction Manual Download Page 9

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GEAR DIFF

After assembly the differential should have
a length of 32.6~32.7 mm measured from
the ends of the installed ball-bearings. If
differential is longer, retighten the 4 screws
holding the spur gear.

32.6~32.7 mm

➊

➋

➍

➎

➏

➌

➐

940814

BB 8x14x4

971060

O 6x1.5

964060

S 6x18x0.2

Center diff:

Silicone oil

7000cSt

Fill just above the
satellite gears.

980212

P 2x11.6

VERY IMPORTANT!

Fill the differentials with oil just
above the satellite gears.

OIL

INCORRECT

CORRECT

CENTER DIFFERENTIAL

964030

S 3.5x12x0.2

903312

SFH M3x12

Tighten the screws equally

Finish tightening in this order

OIL

➊

➋

➌

➍

STEP DETAIL

➏

Use HUDY Ball-Bearing

Grease for servicing:

#106220 - Standard
#106221 - Extra
#106222 - Premium

Use the following silicone oil included in the kit for initial setting:

Center diff:

7000cSt

Graphite Grease

(HUDY #106210)

Graphite Grease

(HUDY #106210)

Summary of Contents for XB808

Page 1: ......

Page 2: ...upplied 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 p...

Page 3: ...the right to make the ﬁnal determination of the warranty status of any component or part Limitations of Liability XRAY makes no other warranties expressed or implied XRAY shall not be liable for any loss injury or damages whether direct indirect special incidental or consequential arising from the use misuse or abuse of this product and or any product or accessory required to operate this product ...

Page 4: ...ne Manifold Exhaust Glow Plug Igniter Starter Box Battery Pack Steering and Throttle Servos Battery Charger Receiver Lexan Paint Fuel Special Tool for all turnbuckles nuts CA Glue Phillips 5 0mm HUDY 165049 Socket 5 0 5 5mm HUDY 170058 170059 Allen 1 5 2 0 2 5mm HUDY 111549 112049 112549 17mm Wheel Nut Tool HUDY 107570 Side Cutters Hobby Knife Body Reamer HUDY 107600 Cross wrench HUDY 107581 Flywh...

Page 5: ...spur gear TO CLOSE A WIDE GAP TO OPEN A NARROW GAP To open a narrow gap add 1 or 2 shims on the other side of the diff away from spur gear 962080 WASHER S 8 x 0 1 mm 10 962081 WASHER S 8 x 0 2 mm 10 TIP insert shim s here insert shim s here DRIVE SHAFT PINS SERVICING TIP To enjoy the longest possible lifespan of the drive shafts and diff outdrives it is extremely important to properly service the ...

Page 6: ...4 HIGH SPEED BALL BEARING 8x14x4 BLUE COVERED 2 96 4030 WASHER S 3 5x12x0 2 10 96 4060 WASHER S 6x18x0 2 10 97 1060 SILICONE O RING 6x1 5 10 98 0212 PIN 2x11 6 10 BAGS 940814 352070 903312 355043 964060 355030 971060 355020 940814 355090 964030 980212 971060 355080 355062 352070 355062 Use HUDY Ball Bearing Grease for servicing 106220 Standard 106221 Extra 106222 Premium 940814 BB 8x14x4 964060 S ...

Page 7: ...3 5x12x0 2 903312 SFH M3x12 2x F R OIL Tighten the screws equally Finish tightening in this order OIL 940814 BB 8x14x4 964060 S 6x18x0 2 971060 O 6x1 5 980212 P 2x11 6 STEP DETAIL Use HUDY Ball Bearing Grease for servicing 106220 Standard 106221 Extra 106222 Premium Use these silicone oils included in the kit for initial settings Front diff 5000cSt Rear diff 2000cSt Rear diff Silicone oil 2000cSt ...

Page 8: ... DIFF OUTDRIVE ADAPTER 2 HUDY STEEL 35 5080 DIFF PIN 2 35 5090 DIFF GASKET 4 90 3312 HEX SCREW SFH M3x12 10 94 0814 HIGH SPEED BALL BEARING 8x14x4 BLUE COVERED 2 96 4030 WASHER S 3 5x12x0 2 10 96 4060 WASHER S 6x18x0 2 10 97 1060 SILICONE O RING 6x1 5 10 98 0212 PIN 2x11 6 10 Use HUDY Ball Bearing Grease for servicing 106220 Standard 106221 Extra 106222 Premium 940814 BB 8x14x4 971060 O 6x1 5 9640...

Page 9: ...st above the satellite gears 980212 P 2x11 6 VERY IMPORTANT Fill the differentials with oil just above the satellite gears OIL INCORRECT CORRECT CENTER DIFFERENTIAL 964030 S 3 5x12x0 2 903312 SFH M3x12 Tighten the screws equally Finish tightening in this order OIL STEP DETAIL Use HUDY Ball Bearing Grease for servicing 106220 Standard 106221 Extra 106222 Premium Use the following silicone oil inclu...

Page 10: ...Ball Bearing Grease for servicing 106220 Standard 106221 Extra 106222 Premium step 4 STEP DETAIL 902312 352092 352002 355001 FRONT DIFF 980263 355238 355421 941319 352002 355111 941319 902305 902312 35 2002 XB808 DIFF BULKHEAD BLOCK SET FRONT REAR 35 2092 XB808 GRAPHITE FRONT SHOCK TOWER CNC MACHINED 4 MM 35 5111 XB808 PINION GEAR 10T 35 5238 XB808 CVD DRIVE SHAFT COUPLING HUDY SPRING STEEL 35 542...

Page 11: ...PHITE REAR SHOCK TOWER CNC MACHINED 3 5 MM 35 5111 XB808 PINION GEAR 10T 35 5238 XB808 CVD DRIVE SHAFT COUPLING HUDY SPRING STEEL 35 5621 XB808 REAR CENTRAL CVD DRIVE SHAFT HUDY SPRING STEEL 90 1303 HEX SCREW SB M3x3 10 90 2305 HEX SCREW SH M3x5 10 90 2312 HEX SCREW SH M3x12 10 94 1319 HIGH SPEED BALL BEARING 13x19x4 RUBBER SEALED 2 98 0263 PIN 2 5x13 10 3x12 step step Use HUDY Ball Bearing Grease...

Page 12: ...EX SCREW SH M3x18 10 90 3308 HEX SCREW SFH M3x8 10 90 9372 SCREW PHILLIPS SS 3 5x22 10 90 9395 SCREW PHILLIPS SS 3 5x45 10 96 0040 NUT M4 10 BAG 3 5x22 3 5x45 REAR ANTI ROLL BARS 353482 2 2mm OPTION 353484 2 4mm OPTION 353486 2 6mm STANDARD 353488 2 8mm OPTION 3 REAR SUSPENSION 333450 352470 353114 352460 960040 353302 909372 901303 353486 353371 901408 353371 902318 901305 903308 352002 909395 35...

Page 13: ... for free movement 0mm STEP DETAIL 3x18 Step HUDY 107634 ARM REAMER If the suspension arm does not move freely use a HUDY Arm Reamer to size the holes of the arms Check for free movement REAR ARM L R Ensure there is a little play Ensure there is a little play DETAIL DETAIL INITIAL POSITION INITIAL POSITION 1 1 2 2 CORRECT After tightening the suspension pins the suspension holders will slightly be...

Page 14: ...18 HEX SCREW SH M3x18 10 90 2320 HEX SCREW SH M3x20 10 90 2322 HEX SCREW SH M3x22 10 90 5314 SCREW PHILLIPS 3 0x14 10 94 0814 HIGH SPEED BALL BEARING 8x14x4 BLUE COVERED 2 94 1319 HIGH SPEED BALL BEARING 13x19x4 BLUE COVERED 2 96 0030 NUT M3 10 98 0263 PIN 2 5x13 10 98 0317 PIN 3x17 10 BAG 2x L R 980317 355250 901504 353370 902322 941319 960030 902320 905314 960030 902320 353520 353559 352631 3531...

Page 15: ...SITIONS Right thread Left thread Right thread Left thread 37 5 mm INITIAL POSITIONS RIGHT THREAD LEFT THREAD 3x16 3x22 3x18 3x10 3x20 NOTE ORIENTATION Adjustment block towards outside 3x14 3x14 37 5 mm NOTE ORIENTATION Adjustment block towards outside 1 1 2 2 3 3 RIGHT THREAD LEFT THREAD 1 1 2 2 3 3 4 4 F1 F1 F3 F3 F2 F2 F4 F4 R1 R1 R3 R3 R2 R2 R4 R4 Follow the TECH TIP on page 5 to install the pi...

Page 16: ...0 90 3308 HEX SCREW SFH M3x8 10 90 9372 SCREW PHILLIPS SS 3 5x22 10 90 9395 SCREW PHILLIPS SS 3 5x45 10 96 0040 NUT M4 10 BAG 909372 960040 902318 352114 903308 353371 901408 901303 333450 352470 901312 352460 901305 352002 352484 352302 357213 909395 352302 3 5x22 3 5x45 F FRONT VIEW The composite suspension holders feature preset optimum geometry 0 kick up which with the combination of the 10 an...

Page 17: ... 1 5mm 6mm Follow the TECH TIP on page 5 to install the pivot balls F FRONT ARM L R Step check for free movement STEP DETAIL HUDY 107634 ARM REAMER L R 0mm 2mm 3x12 Step If the suspension arms do not move freely use a HUDY Arm Reamer resize the holes Do not overtighten the self locking nut Overtightening may result in suspension binding 2mm 4x8 Downstop screw Ensure there is a little play DETAIL E...

Page 18: ...SCREW SH M3x25 10 90 2414 HEX SCREW SH M4x14 10 90 2418 HEX SCREW SH M4x18 10 94 0814 HIGH SPEED BALL BEARING 8x14x4 BLUE COVERED 2 94 1319 HIGH SPEED BALL BEARING 13x19x4 BLUE COVERED 2 96 0030 NUT M3 10 98 0263 PIN 2 5x13 10 98 0317 PIN 3x17 10 BAG 353170 352621 902316 2x Graphite Grease HUDY 106210 Marked R 353160 352151 960030 902418 901504 902418 960030 352181 355221 980263 902414 355237 3552...

Page 19: ...to tighten as shown NOTE ORIENTATION Adjustment block towards outside 3x16 3x25 NOTE ORIENTATION Left thread Right thread Left thread Right thread Adjustment block towards outside Follow the TECH TIP on page 5 to install the pivot balls RIGHT THREAD LEFT THREAD 2 2 1 1 3 3 RIGHT ASSEMBLY LEFT ASSEMBLY Check for free movement Follow the TECH TIP on page 5 to install the pivot balls 36 5 mm 36 5 mm ...

Page 20: ...ARDCOATED SWISS 7075 T6 3MM 35 1200 FRONT REAR BUMPER V2 35 3088 XB808 COMPOSITE REAR BRACE 90 2312 HEX SCREW SH M3x12 10 90 3312 HEX SCREW SFH M3x12 10 90 3412 HEX SCREW SFH M4x12 10 96 0030 NUT M3 10 BAG 902312 960030 903412 903312 903412 351200 351102 353088 960030 ...

Page 21: ...21 903312 SFH M3x12 902312 SH M3x12 903412 SFH M4x12 960030 N M3 FRONT REAR ASSEMBLY DETAIL SH 3x12 SFH 3x12 ...

Page 22: ...LIEF STEERING BALL JOINT 6 8MM 2 90 2308 HEX SCREW SH M3x8 10 90 2310 HEX SCREW SH M3x10 10 90 3308 HEX SCREW SFH M3x8 10 90 3310 HEX SCREW SFH M3x10 10 90 3312 HEX SCREW SFH M3x12 10 90 3314 HEX SCREW SFH M3x14 10 90 3318 HEX SCREW SFH M3x18 10 90 3320 HEX SCREW SFH M3x20 10 90 3410 HEX SCREW SFH M4x10 10 94 0610 HIGH SPEED BALL BEARING 6x10x3 BLUE COVERED 2 96 0030 NUT M3 10 96 1032 WASHER S 3 2...

Page 23: ... to install the pivot balls RIGHT THREAD LEFT THREAD 32 mm 32 mm 4x10 SFH 3x12 SFH 3x10 SFH 3x14 SH 3x10 SH 3x10 SH 3x8 SH 3x8 2mm 2mm alu shim alu shim 1mm 1mm alu shim alu shim 3x18 3x20 NOTE ORIENTATION Adjustment block towards outside Left thread Right thread Left thread Right thread NOTE ORIENTATION Adjustment block towards outside 2 2 1 1 2 2 1 1 step step Check for free movement Follow the ...

Page 24: ...4 HEX SCREW SB M3x4 10 90 2316 HEX SCREW SH M3x16 10 90 2330 HEX SCREW SH M3x30 10 90 3308 HEX SCREW SFH M3x8 10 90 3412 HEX SCREW SFH M4x12 10 Fibre pads together Temporarily insert brake disk between pads to set correct gap 0 5 mm 354120 355011 CENTER DIFF 354110 354130 354041 354058 903308 901304 354041 902330 Roughen steel plates with sandpaper before gluing fibre pads ROUND HOLE OVAL HOLE NOT...

Page 25: ...2 903308 SFH M3x8 CENTER DIFF BRAKE NOTE ORIENTATION Before inserting 3x30 long screws loosen the four flat head screws in the upper plate by 1 2 turn Tighten all screws after assembly 1mm 1mm Insert brake disk between brake pads DETAIL NOTE ORIENTATION OF ALL PARTS ...

Page 26: ...REW SH M3x16 10 90 3310 HEX SCREW SFH M3x10 10 90 3410 HEX SCREW SFH M4x10 10 90 8308 HEX SCREW CAP HEAD 3x8 10 90 8312 HEX SCREW CAP HEAD 3x12 10 91 1410 HEX SCREW FLANGED SH M4x10 10 96 0030 NUT M3 10 96 1025 WASHER S 2 5 10 96 2050 WASHER S 5x10x1 0 10 96 4073 WASHER S 7x10x0 2 10 96 4074 WASHER S 7x10x0 3 10 96 4075 WASHER S 7x10x0 5 10 BAG L R Follow the order of steps 9 FUEL TANK ENGINE 9023...

Page 27: ...is You should be able to rock one gear back and forth slightly while holding the other one firmly Be sure to check the gear mesh all the way around the spur gear Tighten the screws once the engine alignment and gear mesh are correct and then re check the gear mesh to ensure the engine mounts did not move DETAIL Tighten the clutch nut using HUDY tool 107581 HoldtheflywheelusingHUDY Flywheel Tool 18...

Page 28: ...HEX SCREW SFH M3x10 10 90 7206 SCREW PHILLIPS 2x6 10 96 0030 NUT M3 10 LEFT THREAD RIGHT THREAD Ball joints must be 90 to each other USE APPROPRIATE SERVO ARM K KO Propo JR Sanwa Multiplex H Hitec F Futaba Receiver battery not included 306310 Servo Grommet not included 356001 Throttle Servo not included 356120 903308 Steering Servo not included Servo Grommet not included Servo Screw not included F...

Page 29: ...t graphite parts DETAIL RADIO CASE Route servo leads as shown Route receiver wire through mounting hole in top plate and through antenna tube KO PROPO SANWA FUTABA Use appropriate servo stands Servo screw NOTE ORIENTATION Routeservoleadsthrough this gap Seal gap with silicone after leads are all routed and plugged into receiver Note orientation of servo arm when servo is at neutral Servo stands Us...

Page 30: ...ECT There are two different thickness shims use them as shown Use the same procedure when building both front and rear shocks REAR SHOCKS LONG 2x 358041 358261 352460 358168 358042 358082 960025 358040 358222 358122 970100 971035 970180 358015 358062 358140 358150 358284 358184 358052 358038 358014 FRONT SPRINGS 358182 C 0 65 White OPTION 358183 C 0 70 Grey OPTION 358184 C 0 75 Silver STANDARD 358...

Page 31: ...ISTON SHORT SHOCK BODY SHORT SHOCK ROD 2x 1 3mm PISTON LONG SHOCK BODY LONG SHOCK ROD EXTREMELY IMPORTANT Do not push the shock rod straight through the lower shock body assembly O ring damage may result Twisttheshockrodthroughthe lower shock body assembly Extend the shock shaft completely Fill the shock body with the shock oil For the FRONT shocks short use 600cSt oil For the REAR shocks long use...

Page 32: ...ult shock rebound setting is 0 as described on page 31 Alternatively you may set the shock rebound setting to 50 or 100 as described below Remove the shock springs before performing shock rebound adjustment Fill the shock body with shock oil up to the top Make sure to use same viscosity shock oil as is in the shock Orient the filled shock vertically for several minutes with the shock shaft fully e...

Page 33: ...HEX SCREW SB M3x3 10 90 2308 HEX SCREW SH M3x8 10 90 2310 HEX SCREW SH M3x10 10 90 2318 HEX SCREW SH M3x18 10 90 2319 HEX SCREW SH M3x18 LEFT THREAD 10 90 2325 HEX SCREW SH M3x25 10 90 3312 HEX SCREW SFH M3x12 10 90 3314 HEX SCREW SFH M3x14 10 96 0030 NUT M3 10 96 1022 WASHER S 2 2 10 356401 356510 902310 356200 356401 961022 358950 356401 356401 353510 358840 358810 358820 358840 358820 902308 90...

Page 34: ...HREAD Use STANDARD M3x18 screw SHORT 1 1 2 2 Ensure that the servo is in neutral position before attaching the servo horn OUTER OUTER INNER INNER LOWER LOWER UPPER UPPER Always use UPPER shock position on front shocktower in combination with INNER hole on suspension arm Always use LOWER shock position on front shocktower in combination with OUTER hole on suspension arm Always use LOWER shock posit...

Page 35: ...ON 359809 Yellow OPTION FINAL ASSEMBLY Cut the silicone tube depending on engine and muffler Use the plastic clips to hold the tubes together To tighten the setscrew you can also use HUDY 17mm Wheel Nut Tool 107570 Apply air filter oil and follow the engine instructions to service the air filter SILICONE TUBE MARKED AS GREEN FROM FUEL TANK TO CARBURETOR SILICONE TUBE MARKED AS RED FROM MUFFLER TO ...

Page 36: ...turn collar to thread brake rod INTO pivot To loosen brakes turn collar to thread brake rod OUT of pivot ENGINE IDLING 0 5mm ADJUST INDIVIDUAL LINKAGES SEPARATELY TO AVOID INTERFERING WITH THE OPERATION OF THE OTHERS 1mm ENGINE IDLING IDLING ADJUSTMENT SCREW Use to adjust the idle setting of the carburetor Do not allow carburetor to close to less than 1mm Body Reamer HUDY 107600 DETAIL THROTTLE LI...

Page 37: ...ommended that the shocks be re filled and bled before a large event If building or pairing new shocks always make sure they are the same length using a shock length measuring tool and adjust the lower ball joints as needed If installing new rubber bladders carefully trim the thin excess rubber from the edges of their lips Curved body scissors work the best Regularly inspect the amount of dirt on t...

Page 38: ...ot primed Bad glowplug or dead glowdriver battery Fuel lines fuel filter air cleaner or muffler is clogged Engine is flooded due to over priming Carburetor is not adjusted properly Throttle servo linkage not adjusted properly Fill fuel tank with fuel and prime Replace glowplug or recharge replace glowdriver battery Clean or replace clogged part s Remove glowplug turn car over to discharge fuel fro...

Page 39: ...358184 C 0 75 358185 C 0 80 358186 C 0 86 358187 C 0 92 358188 C 0 98 358282 C 0 47 358283 C 0 50 358284 C 0 53 358285 C 0 57 358286 C 0 61 358287 C 0 65 358288 C 0 70 1 3 mm 1 4 mm 1 5 mm 1 3 mm 1 4 mm 1 5 mm WHITE GREY SILVER GREY BLUE BLUE VIOLET PURPLE ANTI ROLL BAR OTHER OTHER OIL cST REBOUND PISTONS HOLES SIZE 107717 GAUGE MEASURE UNDER WHEEL AXLE 107717 GAUGE 1 3 1 2 3 4 1 2 WHEELBASE SHIM ...

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