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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

 

 

   

 

all the M3 threaded balls. 

 

 
 

 

***Recommended tightening torque: 

1 Nm for the M3 threaded balls 

 

24 

Summary of Contents for Merak E750

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

Page 2: ...SUPPORTS INSTALLATION 2 4 16 ESC SUPPORT INSTALLATION 2 5 16 ELECTRONICS TRAY INSTALLATION 2 7 17 SKID SUPPORTS REINFORCEMENT AND VIBRATION DAMPERS INSTALLATION 2 8 2 9 17 MAIN GEAR AND AUTOROTATION...

Page 3: ...R ASSEMBLY AND INSTALLATION 5 6 31 TAIL ROTOR ASSEMBLY AND INSTALLATION 5 7 32 TAIL BOOM BRACES ASSEMBLY AND INSTALLATION 6 2 34 SERVOS 35 SERVO INSTALLATION 7 1 7 2 7 3 35 TAIL SERVO CONTROL RODS 7 4...

Page 4: ...he spirit of seeking quality and sincerity stimulating innovation Always practice the concept and value of precise precise and exquisite products and penetrate the outstanding innovative ideas into ev...

Page 5: ...ft and medium Thrust bearing grease Silicon grease Light oil 2 mm pin bars Digital pitch gauge Caliper Solder equipment OPTIONAL TOOLS Torque screwdriver with required bits Ball link caliper adapter O...

Page 6: ...inserting the pulley press it against the pinion and tighten the two M3 x 3 mm set screws using soft threadlocker Insert the second bearing block and then secure it with the M3 x 6 mm screw and flang...

Page 7: ...k the pinion nut using medium threadlocker Optionally bearing inner race can be fixed to the helical gear with medium threadlocker Install the engine into the motor block fixing it with the two M4 x 1...

Page 8: ...e outer bearing race avoiding the threadlocker to touch the shield Then insert the bearing on its place Be careful to not forget to put the brass spacers into the inner part of aileron levers Long M3...

Page 9: ...amount of medium threadlocker on the screw part in contact with the aluminum elevator arm Previous to install the elevator arm into the elevator lever red part place the flanged spacers in the intern...

Page 10: ...s inner race and the support Do not overtighten the mechanism it should move freely ESC SUPPORT 1 6 The carbon fiber ESC plate is secured two the aluminium supports with M3 x 8 mm flat head screws us...

Page 11: ...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 small position adjustment in order to use differen...

Page 12: ...x 8 mm button head screws and soft threadlocker Rear support holes are slotted to allow adjusting its position vertically Short cabin supports are installed at the rear of the carbon fiber chassis wi...

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 13...

Page 14: ...ng soft threadlocker The lower bearing block is secured with two M3 x 8mm screws with aluminium washers and two M3 x 30 mm with aluminium washers and aluminium spacers using soft threadlocker It is re...

Page 15: ...dlocker are used to fix the elevator mechanism to the shaft Then the elevator push pull arm is installed on the chassis side with two M4 set screws with soft threadlocker Use two 2 mm pin bars to fix...

Page 16: ...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 Recommended ti...

Page 17: ...SUPPORT INSTALLATION 2 5 The ESC support has mounting holes for ESCs such Kontronik Kosmik and Hobbywing Platinum series The ESC support is mounted into the carbon fiber chassis with M3 screws and al...

Page 18: ...iber chassis by means of M3 screws with aluminium washers and nylon lock nuts SKID SUPPORTS REINFORCEMENT AND VIBRATION DAMPERS INSTALLATION 2 8 2 9 Two carbon fiber sheet reinforcements are used join...

Page 19: ...ing gradually the torque till the recommended one This assures a perfect assembly with no deformations The POM helical main gear is secured to the red aluminium core with M2 5 x 6 mm screws using soft...

Page 20: ...ed to the red aluminium core with M3 x 6 mm flat screws using soft threadlocker Use star pattern tightening sequence increasing gradually the torque till the recommended one This assures a perfect ass...

Page 21: ...in the pictures The M3 x 40 mm screws and nylon lock nuts are tightened in step 5 7 to fix the tail boom in place Insert the tail pinion bearing block assembly using M3 x 8 mm screws to temporarily se...

Page 22: ...ing plates The slotted holes allow to set the gear backlash for the motor pinion once the main gear assembly is installed MAIN MAST AND GEARS INSTALLATION 3 5 3 6 First clean with alcohol the autorota...

Page 23: ...hing down the collar and fixing the M3 set screws with soft threadlocker Once the main mast and gears are installed both tail pinion and motor pinion backlash can be adjusted allowing a little bit of...

Page 24: ...ONS MAIN ROTOR ASSEMBLY SWASHPLATE ASSEMBLY 4 1 All the threaded balls for the swashplate have the same length Use soft threadlocker to secure all the M3 threaded balls Recommended tightening torque 1...

Page 25: ...arms Insert a circlip on the pin mount the plastic ball link arm on the aluminium lever and insert the pin through securing the assembly with the second circlip For additional security block the pin w...

Page 26: ...E HOLDER ASSEMBLY 4 6 M3 x 8 mm and M3 x 12 mm screws with soft threadlocker are used to mount the pitch arms into the blade holders Outer hole from the pitch arms should be used in order to assemble...

Page 27: ...holder s bearing inner race Then one or more spindle shim washers should be used Insert the spindle shaft with an installed blade holder into the center hub and replicate the flanged washer spindle s...

Page 28: ...ten it lightly and the install the phase arms without fully tighten their M3 x 22 mm button head screws using soft threadlocker The M3 button head screws should be gradually tighten in order to obtain...

Page 29: ...ASSEMBLY TAIL PULLEY ASSEMBLY 5 1 Align the tail pulley threaded hole with the tail shaft notch using the showed orientation Tighten the M4 set screw using soft threadlocker Recommended tightening to...

Page 30: ...the tail shaft in the case and mount the right side plate with the tail pitch lever support using M3 x 8 mm button head screws Check the tail shaft side play adding shim washers if needed Remember to...

Page 31: ...maging the bearing Don t worry about the assembly getting loose the tail slider sleeve is opposite threaded Tail ball links are marked with a dot indicating the side that goes into the ball Install th...

Page 32: ...itch lever with soft threadlocker Glue the two flanged bearings in the aluminium tail pitch lever with medium threadlocker Install the tail pitch lever assembly in the tail pitch lever support with th...

Page 33: ...tightening them Install the M3 threaded ball in each blade holder Complete the assembly as shown in the picture The thrust bearing must be greased then assembled with its bigger id bearing race inside...

Page 34: ...n pulleys and bearings may appear A good belt tension is achieved when the belt flexes a bit without touching both ends when force in the tail belt is applied with two fingers on the tail box near the...

Page 35: ...ls to the carbon fibre boom braces For additional strength drill a 2 mm hole through the carbon fibre boom brace and secure both parts together with the provided M2 screws and nylon lock nuts Front pa...

Page 36: ...provided self tapping screws and reinforcement plates Elevator and tail servos are directly installed to the chassis Mount first the plastic inserts in the rear part of the servos Then fix the servos...

Page 37: ...a M2 5 x 6 mm screw with medium threadlocker but not right now In order to guarantee a perfect servo setup servos and swash control levers need to be centered Center the servos connecting them to a re...

Page 38: ...link adapters installed in a caliper to precisely set the connecting rod length It is key that both connecting rods for each servo have the same length To check that the connecting rod length is corre...

Page 39: ...et the correct length Some flybarless controller systems ask to have zero degrees for collective pitch in the swashplate center position this position can be obtained by locking elevator and aileron a...

Page 40: ...rbon 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 Threaded rods are fixed to...

Page 41: ...elf tapping screw Check to not overtighten it Align the tail control rod guide on its longitudinal axis allowing a smooth movement of the rod on the full servo range Choose the right position avoiding...

Page 42: ...should be regularly greased specially under hot temperatures Thrust bearings for main and tail rotor blade holders should be cleaned and greased back every 100 flights Each time thrust bearings are g...

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