Kyosho NEXUS 30 S Instruction Manual
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Kyosho NEXUS 30 S Instruction Manual

Kyosho NEXUS 30 S Instruction Manual

Nexus series
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INSTRUCTION MANUAL

SERIES
INDEX
Radio PREPARATION
ASSEMBLY
© 1997 KYOSHO
SETTINGS FLIGHT LESSONS MAINTENANCE
SPARE & OPTIONAL PARTS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
.30 ENGINE POWERED
NEXUS 30 S

SAFETY PRECAUTIONS

This radio control model is not a toy.
This is a kind of machine including a rotor which rotates with
high speed and has a possibility to be dangerous. You are
responsible for this model's assembly, safe operation (place
to fly, frequency) check and adjustment of the model.
Assemble this kit only in places out of children's reach!
Take enough safety precaution before and after operation.
After every flight, inspect screws and nuts for looseness, and
parts for wear. Any damaged parts should be immediately
replaced, repaired or adjusted for safe operation.
Use only Kyosho genuine parts for replacement.
Failing to do so will result in accidents or malfunction of the
model. Kyosho do not take responsibilities for the accidents
and crashes if using the parts which are not Kyosho genuine
ones.
Always keep this instruction manual ready at hand for quick
reference, even after completing the assembly.
THE FINEST RADIO CONTROL MODELS
RADIO CONTROLLED
HELICOPTER
TYPE
6 ~ 24
26 ~ 35
37 ~ 41
42 ~ 44
No. 21702
No. 21705
R
S
2
3
4 ~ 5
25
36

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Summary of Contents for Kyosho NEXUS 30 S

  • Page 1: Instruction Manual

    Failing to do so will result in accidents or malfunction of the model. Kyosho do not take responsibilities for the accidents and crashes if using the parts which are not Kyosho genuine ones. Always keep this instruction manual ready at hand for quick reference, even after completing the assembly.
  • Page 2 REQUIRED FOR OPERATION (1) Radio for engine-powered AA-size Batteries (for transmitter) R/C helicopters Radio for engine-powered R/C helicopters, and dry batteries This kit requires a radio for engine-powered R/C helicopters with 5 servos and 1 gyro. For more information on the radio, refer to SUITABLE SERVOS its explanations.
  • Page 3 BEFORE YOU BEGIN (1) Read through the manual before you begin, so you will have an overall idea of what to do. Check all parts. If you find any defective or missing parts, contact your local dealer or our Kyosho Distributor. Example...
  • Page 4 LED lamps whether somebody else is on your fre- q uency or not! PERSONAL BAND MONITOR KYOSHO CORPORATION No.80591 (40MHz) No.80592 (72MHz) No.80591 6,000 Special crystals are JRMSA available at Kyosho! KYOSHO CORPRATION...
  • Page 5 This instruction manual is both for kit No.21705 and semi-assembled kit No.21702 with engine. When referring to the instructions for completing the assembly, make the following distinctions. NEXUS 30S type S (assembly kit) : All steps from through NEXUS 30S type S (semi-assembled) : All steps from 15 28 through NE-B, NE-6...
  • Page 6 NE-5 Frame 3 12mm 3 12mm Cap Screw 3 8mm Washer 3 8mm Note the direction. Front Front NE-2, NE-3, NE-4 Mast Mast Assembly 8 12mm Plastic Bushing 2 14mm NE-4 Main Gear 3 8mm 3 8mm F/H Screw 3 18mm Cap Screw 3 18mm Nylon Nut...
  • Page 7 NE-2, NE-5, NE-6 Mast 3 15mm TP 3 15mm Screw 8 16mm Ball Bearing Insert Nut (S) 3 15mm NE-4 Control Lever 2 8mm RT/H Screw 2 10mm RT/H Screw Align both marks. 3 10mm TP Screw 2 8mm 3 8mm Washer 3 8mm 3 10mm...
  • Page 8 NE-5, NE-6 Frame 3 12mm Main Gear Backlash Adjustment. Cap Screw Remove the lower ball bearing case and insert shims as per diagram. The number of shims used will affect the backlash. 3 15mm TP Screw 13 x 16mm 3 20mm TP Shim Screw 3 8mm...
  • Page 9 NE-6 Engine 3 14mm Cap Screw 3 8mm Washer Fit together. 3 14mm 3 8mm Main Gear Adjust the backlash as per diagram and explanations. Tighten the screws in the order B and A with two sheets of paper inserted between the gears.
  • Page 10 NE-7 Fuel Tank 3 10mm TP Screw 3 10mm NE-9 Muffler 4 5mm Screw 4 14mm Cap Screw 3 35mm 3 118mm Cap Screw 4 5mm 4 14mm 3 35mm 3 118mm Screw NE-4 Control Lever 3 20mm TP Screw 3 8mm Washer 3 8mm...
  • Page 11 NE-5, NE-12 Frame 3 15mm TP Screw 3 25mm TP Screw 3 15mm 3 25mm 3 15mm NE-1, NE-2 Rotor Head 3 10mm 2 8mm 5 8mm RT/H Screw Plastic Bushing 3 10mm 2 8mm 3 10mm TP Screw Linkage Ball 3 5mm 2 8mm Collar...
  • Page 12 NE-1 Rotor Head Parallel 30mm About 30mm A Ð A ' Tighten the set screws when A and A ' are equally long. Hex Wrench 2mm To balance left and right ends, place a piece of tape to the lighter end. ( jig ) Hold in place with...
  • Page 13 NE-1, NE-2 353A Rotor Head 2 10mm 2 10mm 5 7mm RT/H Screw Spacer 3 6mm TP Screw 10 13mm Spacer 3 6mm Nylon Nut 5 13mm Ball Bearing Linkage Ball NE-12, NE-13 Tail Boom factory - inserted Positioning 220mm 120mm NE-2, NE-10 Tail Gearbox...
  • Page 14 NE-2, NE-10 Tail Rotor Fasten both 3X4mm set screws onto the spots indicated. 3 4mm Set Screw (Special type) Reverse Screw 3 14mm Cap Screw 3 6mm 2 8mm Washer 3 6mm 6 10mm 5 10mm Metal Bushing Ball Bearing 3 14mm NE-10 Tail Rotor...
  • Page 15 NE-12 Tail Unit 3 25mm 3 10mm TP Screw 3 10mm 3 25mm Cap Screw Nylon Nut NE-8, NE-11 Skid 3 8mm 3 8mm TP Screw 3 18mm TP Screw 3 4mm 3 4mm 3 18mm Set Screw 3 18mm 25mm NE-1 Rotor Head...
  • Page 16 NE-1 Rotor Head 3 20mm Cap Screw Stabilizer Rod Stabilizer Control Rod Nylon Nut Pitch Rod Pitch Rod 3 20mm Stabilizer Rod Stabilizer Control Rod NE-8 Radio Aileron Control Servo 2.6 12mm TP Throttle Control Servo Screw 2.6 12mm 2.6 12mm Note the direction of each servo.
  • Page 17 NE-8,NE-11 Radio Gain Controller Cords Wrap the receiver in sponge for Gyro Amp protection against vibration. Make sure the gyro does not contact the frame. Switch Receiver Follow the radio instruction manual for connecting. NiCd Battery Gyro Switch Fuel Tank NE-8 Vertical Elevator Linkage...
  • Page 18 NE-8 Parallel Horizontal Pitch Linkage 4.8mm High Ball End 2 109mm Adjuster Rod 100mm about 100mm Neutral About 8mm NE-8 Rudder Linkage 1.7 290mm Neutral Left Right 10mm About 10mm Part bags used. Must be purchased separately! Cut off shaded portion.
  • Page 19 NE-8 Aileron Linkage Left Right 4.8mm Ball End 2 100mm Adjuster Rod Vertical Neutral 91mm about 91mm 10mm About 10mm NE-8 Throttle Linkage 4.8mm Ball End High Throttle Lever 2 109mm Choose the appropriate hole in the servo horn and adjust with the length of the throttle linkage Adjuster Rod so the throttle lever will travel most when the throttle control servo is in high or low throttle positions.
  • Page 20 NE-5, NE-8 Tail Boom 3 4mm 3 18mm Set Screw 3 18mm Fit together. Cap Screw 60mm about 60mm Nylon Nut 3 4mm Tail Boom Insert the tail boom up to the mark indicated. Tighten the set screw when a 90¡ angle is produced.
  • Page 21 NE-8 Body 3 8mm Screw Front 3 8mm NE-8 Canopy 2 5mm Screw Decal 2 5mm Decal The decal numbers between Apply decals as illustrated. brackets are for the opposite side. Part bags used. Cut off shaded portion. Drill holes with the specified diameter (here: 2mm).
  • Page 22 Body Main Rotor Positions for gluing 3 12mm Screw Trim the shaded portion of the film. Note the direction. 3 12mm WARNING : NE-1 Attach the tracking tape to the lighter side. Main Rotor THE FINEST RADIO CONTROL MODELS Drag Bolt Blade Balancer Nylon Nut Decal...
  • Page 23 Main Rotor HOVER-PITCH (6û) Hover Pitch Neutral Pitch Rod HI-PITCH (10û) High Pitch Main rotor pitch adjustment PIT.CURVE Center the throttle control stick. Slide the pitch gauge onto each blade. Adjust the length of both High pitch rods to make the stabilizer bar run parallel to the hover pitch line on the gauge.
  • Page 24 OPERATING YOUR MODEL SAFELY WARNING: Do NOT operate the helicopter in the following places and situations: (Non-observance may lead to accidents!) Always check the radio batteries! If the radio batteries get weaker, transmission and reception decrease. You may lose control of your model when opera- ting it under such conditions.
  • Page 25 NEXUS 30 Control Reactions Below are listed the reactions of the NEXUS 30 according to your inputs. HELICOPTER RESPONSE HELICOPTER RESPONSE CONTROL STICK POSITION (MODE 1) Throttle High Engine rpm and the main rotor pitch increase. As a Engine rpm and the main rotor pitch decrease. As a result, the helicopter lifts up.
  • Page 26 Checklist before flying With , the main rotor pitch becomes smaller. With , the main rotor pitch becomes bigger. With , the swashplate tilts right. With , the swashplate tilts left. With , the swashplate tilts back. With , the swashplate tilts fore. With , the slide ring moves left.
  • Page 27 STARTING THE ENGINE (2) Plug Heating Always check the dry batteries used in the plug heater. Engine Starting Ensure the engine starter is rotating into the direction illustrated. (If rotating into the opposite direction, reverse the clips.) When the engine starts, take hold of the rotor head so the rotor blades will not rotate.
  • Page 28 Trim Adjustment NOTICE: Adjust and practice flying only when there is a weak wind or no wind. Correct any yawing, rolling or pitching of the helicopter during take offs with the trims. As the engine speed increases and the helicopter is close to taking off, the following tendencies may be noticed for the helicopter to yaw ), to roll ( ) or to pitch (...
  • Page 29 Hover-Lesson 2 Headwind Hovering necessitates constant control. Repeat practicing the hover until your fingers get used to doing the controls on the transmitter. Direct the helicopter into the wind. Stand behind the helicopter. Raise the throttle control stick a little, making the helicopter hover at a height of 5 ~ 10 cm.
  • Page 30 High Altitude Flight In the beginning , do not fly too fast when practicing banking at high altitude. With right banking: Tilt the helicopter to the right side using the aileron control stick. Pull up the elevator control stick and move the rudder control stick right.
  • Page 31 Wipe off any dirt or oil deposits from your helicopter. Wearing Parts WARNING: When replacing defect parts with new ones, please only use Kyosho brand genuine parts. Ball End / Linkage Ball Swashplate...
  • Page 32 Mast Parts Replacement (1) Engine Remove the pitch lever. Remove the fuel tubes, throttle linkage and muffler. Detach the elevator links from the swashplate. Unscrew the engine mounting screws and pull the engine from Unscrew the screws fastening the top ball bearing case and below.
  • Page 33 Parts Replacement (2) Position of the Mast Stopper Rotate the rotor head until the stabilizer bar and mixing lever become parallel. Main Gear Backlash Adjustment. Remove the lower ball bearing case and insert shims as per diagram. The number of shims used will affect the backlash. Parallel Stabilizer Bar Mixing Lever...
  • Page 34 Troubleshooting Problem Cause Remedy Engine will not start. Engine Weak starter battery. Recharge. Too much fuel inside engine. Remove plug. Using starter, eject excess starter will not spin. (It is ÒoverchokedÓ!) fuel. Weak plug heater battery. Recharge or replace. Defect plug. Replace.

  • Page 35: Parts List

    PARTS LIST DESCRIPTION DESCRIPTION Key No. Bag No. Q'ty Key No. Bag No. Q'ty Stabilizer Bar 353A Main Rotor Grip Shaft Spacer Hiller Control Lever Bushing Hiller Control Lever Feathering Shaft 4.8mm 4.8mm Ball End Top Cover 5x7mm 5 x 7mm Spacer Rotor Head 10x13mm 10 x 13mm Spacer...
  • Page 36 3x12mm H-3317 H-3003 H-3313A 4x5mm H-3311 H-3404 H-3310 3x25mm 437 1192 3x20mm H-3320A 353A 56 H-3006 3x4mm 417 H-3313 2x10mm H-3314 Z-8007 3x6mm 3x10mm 4 H-3063 H-3310 H-3308 H-3308 Z-8007 2x8mm 148 H-3104 3x6mm H-3315 H-3309 3x6mm 3x13mm H-3352 2x6mm H-3319 2x12mm 2x6mm...
  • Page 37 366 H-3323 364 H-3321 40 H-3016 388 H-3344 373 H-3326 H-3319 367 H-3324 4x5mm 3x10mm 3x8mm H-3327 371 H-6028 2x10mm H-3319 H-3327 H-6034 H-3349 H-3018 H-3337 3x4mm 2x8mm 2x8mm 3x18mm 3x18mm 212 H-3349 4x5mm 419 H-3343 3x8mm H-3326 3x15mm 386 H-3342 H-3034 503 H-3358 H-3021...
  • Page 38 H-3340A 3x30mm 384A 4x5mm 18 H-3034 4x5mm 3x12mm 383 H-3306 3x8mm 49 H-3016 H-3339 3x12mm 3x12mm H-3332 H-3332-01 3x10mm 83 1901 3x8mm 380A 3x14mm 379A H-3331A 502 H-3357 376 H-3329 3x6mm 375 H-3328 H-3345 3x35mm 3x10mm 96781 2x10mm 212 Z-8007 H-3319 4x5mm 3x118mm...
  • Page 39 414 H-3335 413 H-3334 2x5mm 1806 415 H-3318 3x25mm 108 H-3054 395 H-3346 3x15mm 3x8mm 97 H-3055 3x25mm 2.6x12mm 3x15mm 153 H-3072 3x8mm 96 H-3055 3x18mm 3x4mm 107 H-3054 103 H-3064 3x18mm 3x4mm H-3338...
  • Page 40 74 H-3039 H-3045 86 87 91 537 H-3375 180 538 178 2.6x8mm 80 H-3042 2.6x14mm H-3376 83 1901 84 H-3123 232 96381 3x25mm 79 H-3043 83 1901 81 H-3042 4x5mm 212 Z-8007 3x4mm 245 H-6054 3x16mm H-3041 76 H-3040 2.6x8mm 75 H-6047 2.6mm H-3376...
  • Page 41 SPARE PARTS FOR JAPANESE MARKET ONLY. Part Names Qty. Part Names Qty. H3003 H3328 1400 Hiller Control Lever Set Engine Mount 3x13x4mm H3006 1000 H3329 1200 3x13x4mmBall Bearing Cooling Fan H3012 2500 H3331A 378 379A 380A Swashplate Assembly Starter Shaft H3016 40 49 H3332...
  • Page 42 OPTIONAL PARTS FOR JAPANESE MARKET ONLY. Part Names Qty. Part Names Qty. H3048 Z3004 1000 8000 Tail Pitch Slide Bearing Replace with HP Swashplate Precision all metal 3X6X2mm H3103 2200 Z3017 1000 3X6X2mm Ball Bearing HP Tail Drive Coupling Aluminum H3103 2 Use together.
  • Page 43 SCREW NUT etc. ¯ Round Head Screw 1101 2x6 2x8 2x10 2x15 5 each 1132 2x4 2x6 2x8 2x10 5 each 1171 2mm 2.6mm 10 each 1102 2.6x8 2.6x10 2.6x12 2.6x14 5 each 1133 2.6x6 2.6x8 2.6x10 2.6x12 5 each 1172 3mm 4mm 10 each...

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