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RVE Merak E750 Assembly Instructions Manual

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Assembly Instructions 
 
 
 
 
RVE Merak E750  
www.rverc.com 
 
 
 
 
 
V1.0 FEB 2019 
 

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  • Page 1   RVE Merak E750   Assembly Instructions                  www.rverc.com    V1.0 FEB 2019 ...

  • Page 2: Table Of Contents

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS      INTRODUCTION ASSEMBLY RECOMMENDATIONS MINIMUM REQUIRED TOOLS OPTIONAL TOOLS OTHER COMPONENTS REQUIRED MAIN CHASSIS ASSEMBLY TAIL PINION BEARING BLOCK (1-1) MOTOR BLOCK (1-2) SWASH CONTROL LEVERS (1-3) TAIL CONTROL LEVER (1-4) ESC SUPPORT (1-6)
  • Page 3 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL CASE ASSEMBLY (5-2, 5-3, 5-4) TAIL SLIDER ASSEMBLY (5-5) TAIL PITCH LEVER ASSEMBLY AND INSTALLATION (5-6) TAIL ROTOR ASSEMBLY AND INSTALLATION (5-7) TAIL BOOM BRACES ASSEMBLY AND INSTALLATION (6-2) SERVOS SERVO INSTALLATION (7-1, 7-2, 7-3)

  • Page 4: Introduction

    F3C with first-class technology and exquisite craft. Since its establishment, RVE has always adhered to the spirit of "seeking quality and sincerity, stimulating innovation". Always practice the concept and value of "precise, precise and exquisite"...

  • Page 5: Minimum Required Tools

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MINIMUM REQUIRED TOOLS   ● Allen screwdriver: 1.5 mm, 2 mm, 2.5 mm, 3 mm and 4 mm  ● Hex nut screwdriver: 5.5 mm and 7 mm  ● Small Phillips screwdriver  ● Wrench: 5.5 mm and 13 mm ...

  • Page 6: Main Chassis Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MAIN CHASSIS ASSEMBLY  TAIL PINION BEARING BLOCK (1-1)  Both bearing blocks are identical. Please pay attention to the chamfer for a correct bearing  block orientation. While inserting the pulley, press it against the pinion and tighten the two M3 ...

  • Page 7: Motor Block

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MOTOR BLOCK (1-2)  The motor block is designed with an integrated third bearing and a special helical pinion. Only  motors using 6mm shaft are compatible. Several pinions, 10t, 11t and 12t are available. Follow ...

  • Page 8: Swash Control Levers

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  SWASH CONTROL LEVERS (1-3)  Bearings are fixed to both elevator arm aileron levers using medium threadlocker. Apply little threadlocker on the outer bearing race, avoiding the threadlocker to touch the shield. Then insert the bearing on its place.
  • Page 9 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  Insert the ball link into the elevator arm securing it with the phillips screw. It may be needed to  sand a bit the ball link’s cylindrical part in order to insert it into the elevator arm. Use a little ...

  • Page 10: Tail Control Lever

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL CONTROL LEVER (1-4)  There’s a short and a long threaded ball. Install them as shown on the pictures using medium  threadlocker. Secure the tail control lever to its support with the M3 x 14 mm screw and ...

  • Page 11: Control Levers And Cabin Support Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  CONTROL LEVERS AND CABIN SUPPORT INSTALLATION (2-1)  Plastic servo supports are used for aileron servos (left and right). Use the M2.5 x 4 mm button  head screws to fix the plastic servo supports to the carbon fiber chassis. The supports allow ...
  • Page 12 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  The aileron lever is fixed to the chassis with a M3 x 15 mm screw and a nylon lock-nut.  Do not forget the brass spacer (washer) to assure good contact between the bearing’s inner ...
  • Page 13 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  0.8 Nm for the M2.5 x 6 mm, M3 x 8 mm button head and M3 x 8 mm screws   ...

  • Page 14: Main Mast Bearing Blocks And Elevator Lever Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MAIN MAST BEARING BLOCKS AND ELEVATOR LEVER  INSTALLATION (2-2)  Three similar bearing blocks are used for the main mast. Check for the correct orientation for  each of them following the images below. The two upper bearing blocks are secured to the ...
  • Page 15 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  The elevator mechanism is installed by means of he elevator shaft into the bearings pre-glued  to the carbon fiber chassis. Two M4 set screws with soft threadlocker are used to fix the  elevator mechanism to the shaft. Then the elevator push-pull arm is installed on the chassis ...

  • Page 16: Battery Tray Supports Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  BATTERY TRAY SUPPORTS INSTALLATION (2-3)  The aluminium battery tray supports are installed on each side of the carbon fiber chassis with  M3 x 6 mm screws with aluminium washers using soft threadlocker.     ...

  • Page 17: Skid Supports Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  SKID SUPPORTS INSTALLATION (2-4)  The​ skid supports are mounted into the carbon fiber chassis with M2.5 screws using soft threadlocker. ESC SUPPORT INSTALLATION (2-5)  The ESC support has mounting holes for ESCs such Kontronik Kosmik and Hobbywing ...

  • Page 18: Electronics Tray Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  ELECTRONICS TRAY INSTALLATION (2-7)  This tray is optional and can be used to harbor different electronic devices such receiver and  its battery. It is pre-glued and manufactured in carbon fiber sheet. It can be mounted to the ...

  • Page 19: Main Gear And Autorotation Block Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS    MAIN GEAR AND   AUTOROTATION BLOCK  ASSEMBLY (3-1)      The autorotation bearing block is           secured to the red aluminium core             with M3 x 5 mm screws with soft  ...

  • Page 20: Tail Gear Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL GEAR ASSEMBLY (3-2)  The POM helical tail gear is secured to the red aluminium core with M3 x 6 mm flat screws                      ...

  • Page 21: Tail Pinion Bearing Block And Tail Boom Support Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL PINION BEARING BLOCK AND TAIL BOOM SUPPORT                 INSTALLATION (3-3)    Slide the tail drive belt through the tail              ...

  • Page 22: Motor Block Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MOTOR BLOCK INSTALLATION (3-4)  Insert the motor block assembly using M3 x 10 mm screws and M4 x 10 mm button head                        ...
  • Page 23 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS      Put the gear assembly in place and               insert the main mast through it aligning               their holes.  Use the M4 x 25 mm screw and the  ...

  • Page 24: Main Rotor Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MAIN ROTOR ASSEMBLY    SWASHPLATE ASSEMBLY (4-1)  All the threaded balls for the             swashplate have the same length.           Use soft threadlocker to secure  ...

  • Page 25: Phase Arm Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  PHASE ARM ASSEMBLY (4-2)  Pins with circlips are used to secure the                 plastic ball link arms. Insert a circlip on the            ...

  • Page 26: Center Hub Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  CENTER HUB ASSEMBLY (4-4)  Use the M3 flat head screw with soft threadlocker to secure the head button to the center hub.        BLADE HOLDER ASSEMBLY (4-6)    M3 x 8 mm and M3 x 12 mm screws with soft ...

  • Page 27: Spindle Shaft And Blade Holders Installation (4-5, 4-7)

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  SPINDLE SHAFT AND BLADE HOLDERS INSTALLATION (4-5, 4-7)  Install the dampers into the center hub using silicon grease. It allows an easier assembly but  also helps maintaining the damper’s flexibility and a good operation. ...

  • Page 28: Main Rotor Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  MAIN ROTOR INSTALLATION (4-4)  Insert the main rotor assembly into the main mast.  A M4 x 25 mm screw with a nylon lock-nut is used to join through the main rotor and the main ...

  • Page 29: Tail Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS    TAIL ASSEMBLY  TAIL PULLEY ASSEMBLY (5-1)  Align the tail pulley threaded hole             with the tail shaft notch using the               showed orientation. Tighten the M4  ...

  • Page 30: Tail Case Assembly (5-2, 5-3, 5-4)

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL CASE ASSEMBLY (5-2, 5-3, 5-4)  Mount the left side plate to the tail case main block. The left side plate is the wider one. Mount also the red cylindrical spacer. Use for both operations M3 x 6 mm button head screws with soft threadlocker.

  • Page 31: Tail Slider Assembly

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL SLIDER ASSEMBLY (5-5)  Insert the tail slider sleeve through the bearing ring, locking the tail pitch arm with soft threadlock. attention overtighten the assembly to avoid damaging the bearing. Don’t worry about the assembly getting loose, the tail slider sleeve is opposite threaded.

  • Page 32: Tail Pitch Lever Assembly And Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL PITCH LEVER ASSEMBLY AND INSTALLATION (5-6)  The tail pitch lever carbon plate is fixed to the aluminium tail pitch lever with two M2.5 x 6 mm screws as shown in the pictures. The control ball is secured to the carbon plate with a phillips head screw with a nylon lock-nut.

  • Page 33: Tail Rotor Assembly And Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL ROTOR ASSEMBLY AND INSTALLATION (5-7)  Install the tail blade holders shafts into the hub with soft threadlocker. Use a 6 mm one-way wrench for tightening them. Install the M3 threaded ball in each blade holder.
  • Page 34 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS        Slide the tail rotor into the tail shaft, fixing it                     with the M4 x 4 mm set screw using soft  ...

  • Page 35: Tail Boom Braces Assembly And Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL BOOM BRACES ASSEMBLY AND INSTALLATION (6-2)  Carbon fibre boom braces are delivered pre-sanded in order to guarantee the best glue adherence and thus strength. Use epoxy glue to glue the aluminium terminals to the carbon fibre boom braces.

  • Page 36: Servos

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  SERVOS  SERVO INSTALLATION (7-1, 7-2, 7-3)  Left and right aileron servos are fixed to the chassis using the previously installed servo supports. Fix the servos as shown in the images using provided self tapping screws reinforcement plates.
  • Page 37 RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  First install the M3 threaded balls in the servo horns using medium threadlocker. Each servo is to be equipped with a inner bushing servo horn, fixing it with the servo horn screws provided with the servos.
  • Page 38 Screw the ball links to each rod, adjusting roughly its length to the previously measured one. Check for the correct orientation of the ball links, RVE engravement from the ball links should always point out of the threaded balls. At this point it is helpful to use ball link adapters installed in a caliper to precisely set the connecting rod length.
  • Page 39 As always check for the correct orientation of the ball links, RVE engravement from the ball links should point out of the threaded balls.

  • Page 40: Tail Servo Control Rods

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL SERVO CONTROL RODS (7-4)  Tail servo rod aluminium ends need to be glued first to the carbon fibre tube. In order to guarantee the best glue adherence use a small file to cut some notches. Then use epoxy glue to attach the aluminium ends to the carbon fibre tubes.

  • Page 41: Tail Control Rod Installation

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  TAIL CONTROL ROD INSTALLATION (7-6)  Tail control rod guide needs to be installed on the middle position +/- 2 cm. The tail control rod guide is clamp-style so it is fixed with a self tapping screw. Check to not overtighten it.

  • Page 42: Pinion Selection

    MAINTENANCE  RECOMMENDATIONS  RVE uses only high quality raw materials, components and high level quality checks on his helicopters. That translates in a low maintenance helicopter having only to check as follows: ● For a new machine, after the first 50 flights check the main rotor blade holders play, adding a shim washer on each side if necessary.

  • Page 43: Assembly Diagrams

    RVE MERAK E750 - ASSEMBLY INSTRUCTIONS  ASSEMBLY DIAGRAMS ...
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