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RJX Hobby x800 ep Instructions Manual

Remote controlled helicopter
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Technical Data:
Overall Length
Overall Height
Overall Wide
Main Rotor Diameter
Tail Rotor Diameter
Gear Ratio
Gross Weight
PLEASE READ AND UNDERSTAND THE INSTRUCTIONS THOROUGHLY BEFORE ASSEMBLY
ca.2000 mm
430 mm
210 mm
ca.1800 mm
ca.301 mm
10:1:4.7 (others Optional)
5200g - 5600g (Depending on Equipment and Main Blades used)
Version 1.0

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Summary of Contents for RJX Hobby x800 ep

  • Page 1 Version 1.0 Technical Data: ca.2000 mm Overall Length 430 mm Overall Height 210 mm Overall Wide ca.1800 mm Main Rotor Diameter ca.301 mm Tail Rotor Diameter 10:1:4.7 (others Optional) Gear Ratio 5200g - 5600g (Depending on Equipment and Main Blades used) Gross Weight PLEASE READ AND UNDERSTAND THE INSTRUCTIONS THOROUGHLY BEFORE ASSEMBLY...
  • Page 2 It may look easy when watching an experienced pilot flying his model, but perseverance and hours of practice will needed before you will be able to fly and opperate the model safely. RJX HOBBY suggests you join a club or seek help from an experienced pilot to help you in your first hops off the ground and then as with all things the more you practice the better you will become.
  • Page 3 TABLE OF CONTENTS 1. Introducion 2. Table of contents 3. Additional Items Required 4. Tools Required 5. Assembly A1 - A29 6. Servo Installation S1-S4 S5-S6 7. Servo Adjustment 8. Rotor Head Setup R1-R5 9. Final Servo and Radio Setup 10.
  • Page 4 ADDITIONAL ITEMS REQUIRED TO COMPLETE THE Gyro system with Choose a CCPM compatible PCM Radio System for Three large and two small disks or Heading Hold Helicopters with a minimum of 6 channels. arms are required 1x Servo extension 100 mm Brushless Motor (Outrunner) (depending on Servos) 10-12S Li-Po Batterie Pack...
  • Page 5 TOOLS REQUIRED (NOT INCLUDED) Allen Drivers 1,5mm - 2mm - 3mm - 4mm Phillips Drivers Large,Middle, Small Nut Drivers 4,5mm - 5,5mm - 7mm Scissors Universal Pliers Cutter Sandpaper Pitch Gauge Ball Link Plier Metric Ruler Grease Cyanoacrylate (CA/Superglue) Epoxy 30 Minutes Ball Link Tool Ball Link Driver...
  • Page 6 STEP 1-1 Landing Skid Support Assembly LANDING SKID MOUNTS inside the bag of the MAIN FRAME USE THREADLOCK Landing Skid Mount A Landing Skid Mount B Bottom Plate Mounting Block M3x12 NOTE:Assemble 2 units. View of the complete Assembly. STEP 1-2TT Tail Drive Pinion Gear Assembly (TT Version) USE THREADLOCK IMPORTANT: Start assembly with the OUTPUT SHAFT.
  • Page 7 STEP 1-3 Drive Gear Assembly CAUTION: USE THREADLOCK Clean off any dust on drive gears. Add grease to the one way bearing, M3x8 Socket Head Bolt to ensure smooth opperation. Don´t fix the four M3x6 bolts before having all four in place. Autorotation Spacer 93T Helical Main Gear IMPORTANT:...
  • Page 8 STEP 1-5 Swash Control Lever Assembly CONTROL LEVER inside the bag of the MAIN FRAME USE THREADLOCK CAUTION: Flange facing upward Control the correct fit of M2x8 Socket Head Bolt the Flanged Bearings. Jointball F3x6x2.5 Bearing with Flange Control Lever M2 Nut NOTE: Assembly 2 sets of this lever CAUTION:...
  • Page 9 STEP 1-7 Front Tail Arm Assembly USE THREADLOCK CAUTION: M2x10 Socket Head Bolt Do NOT over tighten the M3x20 bolts to avoid breaking the bearings. M3x20 Socket Head Bolt Joinball Control Lever Washer 3x5x1 View of the completed Assembly Leverblock STEP 1-8 Battery Tray Assembly BATTERY TRAY inside the bag of the MAIN FRAME USE THREADLOCK...
  • Page 10 STEP 2-1 Lower Main Frame Assembly USE THREADLOCK Lower Frame Bottom Plate Lower Frame M3x8 M3x8 M3x10 M3x10 View of the completed Assembly M3x8 M3x8 60mm Crossmenber Assambled in Step 1-1 STEP 2-2 Upper Main Frame Assembly CAUTION: USE THREADLOCK The upper main frame sides are NOT the same.
  • Page 11 STEP 2-3 Upper Main Frame Assembly USE THREADLOCK Assembled in Step2-2 Standoff Finish Cap M3x10 M3 Lock Nut Left Upper Frame Finish Cap TT VERSION available only Use the Assembly from STEP1-2TT Standoff M3x8 (2) Assembled in Step1-2B View of the completed Assembly Assembled in Step1-1 STEP 2-4 Upper Main Frame Assembly USE THREADLOCK...
  • Page 12 STEP 2-5 Upper Main Frame Assembly USE THREADLOCK 4x6x1 Washer Nick Arm Swashguide M4x4 M4x4 Set Screw Set Screw ( Do not use Threadlock for later adjustment) F4x8x3 Bearing CCPM Arm CCPM Shaft F4x8x3 Bearing M4 Lock Nut M4 Lock Nut M3x8 M3 Lock Nut M3x8...
  • Page 13 STEP 2-7 Main Frame Assembly USE THREADLOCK M3x25 12mm Spacer View of the completed Assembly Finish Cap M3x25 Assempled in Step2-1 12mm Spacer Finish Cap STEP 2-8 Landing Skid Attachment M3x18 View of the completed Assembly M3x18 Skids 3x5x3 Plastic Washer(4) M3x4 Set Screw Landing Skid Brace M3 Lock Nut...
  • Page 14 STEP 3-1 Drive Gear Instalation USE THREADLOCK M4x4 Set Screw Pinion M4x10 Motor Mount M4x10 View of the completed Assembly Brushless Motor Note: Do not tighten the two M4x10 screws. On some motors you can use up to 4 Set Screws to fix the Pinion. Depending on the KV of the Brushless Motor the Pinion and/or the Maingear must be changed to reach a good ratio.
  • Page 15 STEP 3-3 Drive Gear Instalation USE THREADLOCK Main Shaft NOTE: 4mm Hole IMPORTANT: Insure the bigger hole is inserted. When securing the main shaft, pull it upwards through the main bearings to eliminate any freeplay. Next press Main Shaft Collar the main shaft collar firmly onto the upper bearing block and fix with threadlock the four M4x4 set screws.
  • Page 16 STEP 4-1 SWASHPLATE ASSEMBLY USE THREADLOCK 9mm Ballarm (3) Swash Guide Pin 4mm Ballarm (4) View of the completed Assembly STEP 4-2 WASHOUT ASSEMBLY USE THREADLOCK Washout Base Washout Arm M2x10 Socket Head Bolt View of the completed Assembly Jointball Washout Arm Washer 3x5x1 M3x12 Socket Head Bolt...
  • Page 17 STEP 4-3 SWASHPLATE / WASHOUT INSTALLATION BOTTOM IMPORTANT: Insure the correct direction View of the completed Assembly NOTE: Attach the two Washoutlinks to the swash plate. STEP 4-4 SEESAW INSTALLATION USE THREADLOCK M3x10 Socket Head Bolt NOTE: Apply the threadlock inside the Seasaw. Rotor Stopper On this way the fix of the screws is enured.
  • Page 18 STEP 4-5 MAIN BLADE HOLDER ASSEMBLY M3x6 Socket Head Bolt Pitch Arm Main Blade Holder NOTE: Assemble 2 sets of the Main Blade Holder. View of the completed Assembly Detailed adjustments in Step 4-13. STEP 4-6 MIXER ARM ASSEMBLY IMPORTANT: NOTE: Mixer settings are explained in Step 4-13 more detailed.
  • Page 19 STEP 4-7 MAIN ROTOR HEAD ASSEMBLY NOTE: USE THREADLOCK Use silicon grease for the dampers. This also needs to be reaplied as part of your on going maintenace (after Spindle about 30 to 40 flights) to ensure that the dampers not getting dry. Damper Thrust Washer Spindle Collar...
  • Page 20 STEP 4-9 MAIN ROTOR HEAD ASSEMBLY USE THREADLOCK Jesus Bolt M4x8 M3x14 Socket Head Bolt M3x14 Socket Head Bolt Set Screw M3x4 Jesus Bolt M4x8 Phase Ring Set Screw M3x4 View of the completed Assembly STEP 4-10 CONTROL ROD INSTALLATION Link A NOTE: The size of the linkage rod can variate depending...
  • Page 21 STEP 4-11 CONTROL ROD INSTALLATION NOTE: USE THREADLOCK Assembly both sides of the flybar control arm on the same way. M2,5x12 Socket Head Bolt M2,5x12 Socket Head Bolt Flybar Control Arm Linkrod Linkage Rod B Linkage Rod A Linkage Rod C STEP 4-12 ROTOR HEAD SETUP IMPORTANT: SECURE ALL JOINT BALLS AND SCREWS WITH THREADLOCK NOTE:...
  • Page 22 STEP 4-13 MAIN ROTOR HEAD ASSEMBLY Ensure the two M3x3 Sets Screws USE THREADLOCK are on the D-Cut of the Flybar. M3x3 Set Screw IMPORTANT: Insure the correct direction Flybar Paddle of the Flybar Paddle. Flybar Paddle View of the completed Assembly NOTE: Adjust so that A and B are exactly the same distance and secure with the M4x4 Set Screws firmly.
  • Page 23 STEP 4-14 ROTOR HEAD SETUP In the diagrams below are explained the different settings posibilitys of this rotor head. There are many setups with different results. Adjust this settings on demand of you and your capability. Some of the settings can produce binding. Ensure that the ATV settings in the radio and linkage rod adjustments allowing no bindings.
  • Page 24 STEP 5-1TT TAILCASE ASSEMBLY (TT Version) This step is preassembled.PLEASE CHECK AND ADD THREAD LOCK USE THREADLOCK Tail Input Shaft 14mm Pin 19T Delrin Bevel Gear View of the completed Assembly M3x4 Set Screw 19T Delrin Bevel Gear Tail Shaft Aligned 15,8mm Copper Spacer M3x4 Set Screw...
  • Page 25 STEP 5-4 TAILROTOR ASSEMBLY USE THREADLOCK M2x10 Socket Head Bolt Tailhub Jointball Dampner 5x7x1 5x10x4 Bearing M3x20 Socket Head Bolt Tail Grip View of the completed Assembly 3x10x1,5 Washer M3 Lock Nut Thrust Washer Big ID 5x10x4 Bearing Small ID Washer 3x8x1 VERY IMPORTANT: 5x10x4 Thrust Bearing...
  • Page 26 STEP 5-6TT Torque Tube ASSEMBLY USE THREADLOCK Torque Tube M2,5x4 Socket Head Bolt View of the completed Assembly TT Coppler with Oneway Bearing STEP 5-7 TAIL BOOM INSTALATION Tailboom NOTE: In case the guides are hard to install. Heat them up and push them over the Tailboom.
  • Page 27 STEP 5-8 TAIL BRACE ASSEMBLY M3x12 Socket Head Bolt NOTE: Do NOT yet tighten the M3x12 Socket Head Bolt. There will adjustments handed later with the Tail Brace. Horizontal Fin Finish Cap Upper Clamp View of the completed Assembly Lower Clamp NOTE: When installing without the Horizontal Fin use two M3x8 Socket Head Bolts instad of M3x12.
  • Page 28 STEP 5-10TT TAIL BOOM INSTALATION M3x40 Socket Head Bolt (in the front using the front holes) M3 Lock Nuts STEP 5-11 TAIL BRACE ASSEMBLY IMPORTANT: Sand the ends with sandpaper and apply epoxy glue. Also sand the inner of the metal supports. Metal End 4x6 CF Tube NOTE:...
  • Page 29 STEP 5-12 TAIL BRACE INSTALLATION USE THREADLOCK View of the completed Assembly NOTE: M3x16 Socket Head Bolt Fix the two M3x10 Socket Head bolt form the Horizontal Fin with Threadlock in this Step Tail Brace M3x10 Socket Head Bolt M3x16 Socket Head Bolt 60mm Crossmember M3x10 Socket Head Bolt Tail Brace...
  • Page 30 STEP 6-1 SERVO INSTALLATION IMPORTANT: Depending on servo type used for cyclic, you have to install the servo from inside the frames.When installing from outside the servo horn may touch the canopy. In the diagram below you see how to insert the servo into the frames.
  • Page 31 STEP 6-3 SERVO INSTALLATION 2,6x12 Selftapping Screws Washer 2,6x7x1 Servo Mounting Plate IMPORTANT: Depending on servo type used you have to install the servo from inside the frames shown in STEP 7-1. STEP 6-4 SERVO INSTALLATION NOTE: For more easier assembly use CA glue to fix the Servo Mounting Plates before installing the servo.
  • Page 32 STEP 6-5 RECEIVER / GYRO / BATTERY INSTALLATION 1. Install the Battery and Receiver Install the Gyro sensor 4. Install the Gyro Amp or Governor Amp. 6. Install the ESC. 5. Install the the Switch harness 7. Install the Flight Pack. NOTE: a) Be sure to keep all the lead wires.
  • Page 33 STEP 6-6 SERVO ARM PREPARATION AND INSTALLATION NOTE: USE THREADLOCK Before attaching any of the servo output arms, turn on your radio and check that all of the primary control functions and trims are set to neutral. Pay special attention to the throttle/pitch channel where the stick has to be positioned manually unless your transmitter has a digital or graphical display of the output.
  • Page 34 STEP 6-7 LINKAGE CONNECTION NOTE: Assembly the linkage as shown below Check the correct side of the link with the logo. 1. RIGHT SERVO RJXHOBBY Use two large links 48,5mm and a 25mm rod. RJXHOBBY RJXHOBBY 90º 85mm Use four large links and two 60mm rod.
  • Page 35 STEP 6-8 LINKAGE CONNECTION 5. TAIL SERVO 90º Use two large links and the 2,6x265mm Rod ca.285mm...
  • Page 36 STEP 7-1 PHASE RING ADJUSTMENT USE THREADLOCK NOTE: Once the swashplate is leveled it is important to set the phasing of the the washout base. This is done by rotating the rotor head until the flybar is perfectly in line with the body and the tailboom of the helicopter (see the diagram next).
  • Page 37 STEP 7-2 CANOPY ATTACHMENT STEP 7-2 CANOPY ATTACHMENT NOTE: Put the rubbers grommets for about 3 min. in hot water to insert them more easier in the canopy. Rear Canopy Mount Fixing point NOTE: Use the Thumb Screws to secure the canopy to the body of Front Canopy Mount the helicopter STEP 7-3 MAIN / TAIL BLADE INSTALLATION...
  • Page 38 STEP 8-1 FINAL SERVO AND RADIO SETUP Rudder and Throttle Servo Adjustments 1.Checking the servo rotation. With the radio transmitter and receiver switched on, move the rudder and throttle sticks, and check that each servo moves in the correct direction. If either servo moves in the wrong direction, it will be necessary to reset that servo using the appropriate reversing function on your transmitter.
  • Page 39 STEP 8-2 FINAL SERVO AND RADIO SETUP Now that the radio system is fully installed the following items require precise adjustment to achieve the best results. 1. Dual Rates If dual rates are available for the aileron, elevator and rudder channels, then please ensure that they are all set to the same position for high and low ie.
  • Page 40 STEP 8-3 FINAL SERVO AND RADIO SETUP 7.Collective Pitch Setup. A Pitch Gauge will be required for this operation MIDDLE HIGH NORMAL -4º +5.5º +10º IDLE UP -10º +10º 0º +14º -14º 0º AUTOROTATION The total pitch range of the is approximately 30 degrees depending the rotor head settings you have done.
  • Page 41 STEP 8-4 FINAL SERVO AND RADIO SETUP 9. Throttle Curve It is very important to match the throttle curves to those of the main blades. The rotor head should not exceed 2,000 RPM under any circumstances. NOTE: Throttle curves values can vary greatly due to Brushless Motor and ESC combinations and so it will be necessary to fine tune these settings by test flying to achieve the best results.
  • Page 42 STEP 8-5 FINAL SERVO AND RADIO SETUP Caution: Be sure to maintain a safe distance of at least 5 meters from the helicopter when observing the track of the main rotor disc. Blade tracking ensures that both of the main blades are set to the same pitch angle, and if done correctly will make your helicopter smooth in operation. Out of Track Adjustment is necessary Caution: Be sure to maintain a safe distance of at least 5 meters from the helicopter when observing the tracking...
  • Page 43 PLEASE READ BEFORE FLIGHT is the perfect choice for intermediate and expert level R/C Helicopter pilots, however, Radio controlled models such as this can crash and cause serious damage to people and property if not properly assembled and flown with great care. Please exercise the highest levels of caution and safety when operating this model and if you are a beginner, please seek help from an experienced RC heli pilot.
  • Page 44 SPARE PART LIST Short Link 4x XT90-61075 2x25mm Long Link 4x XT90-61109A 2x20mm XL Link 4x XT90-60967 2,6x75mm XT90-61104 XT90-61122A XT90-61106 XT90-80179A XT90-70504 XT90-80179 XT90-61107 XT90-9005 XT90-61105 XT90-70510 XT90-9006 XT90-60869 XT90-80071 XT90-70508 XT90-70201 XT60868 XT90-9054 HN70184 UP60249 EP90-61115 XT90-61101 HN70010 XT90-60729 XT60013 XT90-61110...
  • Page 45 SPARE PART LIST HN60522 HN70020 EP9061082R XT61081 EP9061082L XT60028 HN70038 HN70496(5pcs.) XT60072 HN70020 XT90-70506B XT60817 HN70018 UP90-60007 XT90-60523TT A HN60523 XT90-70506TT XT90-50005B XT90-60523TT XT90-50007TT XT90-50005TT XT60819 XT8009 XT8063 HN70310 Xt60025 HN60547M XT61121 XT90-60025A SOME OF THE LISTED SPARE PARTS ARE NOT SOLD SEPERATLY SOME OF THE LISTED SPARE PARTS ARE NOT SOLD SEPERATLY...
  • Page 46 SPARE PART LIST HN70112 XT8014 XT8041 XT8045 XT61085 HN80014 EP9061082U EP61082B EP61082A Ep9061084 HN70224 HN60339 HN61066 HN70474 EP10T XT90-61093 OPTIONAL: EP12T EP14T HN61074 XT90-61091 EP1000 XT90-61112 OPTIONAL: 740KV RJX Brushless Motor 630KV RJX Brushless Motor XT90-61113 SOME OF THE LISTED SPARE PARTS ARE NOT SOLD SEPERATLY...
  • Page 47 SPARE PART LIST Complete Tail Rotor: XT90-60528 XT800-83091 UP60058 X800-60056 UP70028 XT800-60222 XT90-83095 XT90-60528A XT800-60050 XT90-60054 NOT AVAILABLE AS BELT XT90-60528B VERSION XT90-81019 XT90-9003A XT90-9003 XT90-61118 XT80078 XT90-50007TT XT90-81004CTT XT800-83092B XT90-60862TT B XT90-83094 XT90-70027TT (TT Version) XT90-83092A XT90-83093 XT90-70027B TT XT90-60054 XT90-61120 XT90-60866...
  • Page 48 SPARE PART LIST XT90-82276 X-TREME 90 MANUAL CD XT90-0002 SOME OF THE LISTED SPARE PARTS ARE NOT SOLD SEPERATLY...
  • Page 49 SPARE PART LIST XT90-9032 SCREW HS_M4X20 FOR ENGINE MOUNT XT90-9033 SCREW HS_M5X12 FOR SPINDLE XT90-9034 SCREW HS_M5X34 FOR MAIN BLADES HOLDER ( SPECIALLY) XT90-9035 SCREW HS_M2.5X12 FOR FLYBAR CONTROL ARM XT90-9036 SCREW HS_M4X40 SPECIALLY ( FOR RJX90 MUFFLER AND HATORI) Screws: XT90-9037 SCREW HS_M4X6 FOR CENTER HUB...