EACHINE E120S 2.4G 6CH 3D6G System Brushless Flybarless RC Helicopter User Manual

EACHINE E120S 2.4G 6CH 3D6G System Brushless Flybarless RC Helicopter

Introduction

• This is a super classic helicopter with excellent fight performance. Fly barless design, decrease resistance of rotor head. Quote to aerodynamics, the blades can supply strong power and keep stability. Using the latest technology of new gyro type, this helicopter is compatible with 3D and 6G modes. You can make a variety of stunts in 3D mode. 6G mode is especially suitable for beginners.
• Once you have flown this mini helicopter, you will find other similar mini helicopters are much inferior. This is a incomparable and popular helicopter. Once it has been set up correctly, beginners will find it is very easy to fly. They can master or quickly learn new moves. The built-in ‘rescue’ or upright function in 6G mode (if set up properly), can save the helicopter in most cases.
• The detailed instructions in this manual will help you understand more about the product. Please read it before operating your helicopter. It may help you to save both time and money due to incorrect settings etc.

ITEM LIST

Notice
All instructions, warranties and other collateral documents are subject to change at the sole discretion of our company. For up-to-date product literature, please visit www.eachine.com.

Warning
Read the ENTIRE user manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury. This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this product in a safe and responsible manner could result in injury or damage to the product or other properties. This product is not intended for use by children without direct adult supervision. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual.prior to assembly.setup or use.in order to operate correctly and avoid damage or serious injury.

Additional Safety Precautions and Warnings

1. Age Recommendation: Not for children under 14 years. This is not a toy.
2. Always operate your model in open spaces away from full-size vehicles, traffic and people.
3. Follow the operation notice, warning and any support equipment (charger, battery, etc) carefully.
4. Keep away from any chemicals; keep children away from any small parts and electrical equipment.
5. Always keep away from water, especially for this product don’t have water- proof function; It will be damaged by moisture.
6. Never place any portion of the model in your mouth as it could cause serious injury or even death.
7. Never operate your model with low voltage transmitter batteries.

Helicopter Parameters

Warning and the Guide of Battery Usage

To ensure safety, please use the included supplied standard charger.
WARNING: It is highly recommended to use the supplied charger to charge the battery.
Notice: When the battery voltage is lower than  7.4 V , the lithium battery may be damaged, and may be no longer correctly charged. When the battery voltage is lower than 7.4 V during a flight, the main ESC drops the head speed significantly. Please land immediately and charge the battery as soon as possible.

Battery Charging

1. To charge the battery, please connect the charger USB plug into a USB plug pack or to a USB port of a computer or a plug pack. If no battery is connected, the USB charger red light will flash.
2. Once the battery is plugged into the USB charger, the charger’s red light is lit to indicate the charging is in progress.
3. When the battery is fully charged, the USB red light will stay off.

Warning

1. For maximum safety, please monitor the battery while charging.
2. Please do not allow children to carry out the charging by themselves but ensure adult supervision at all times.
3. Please use the original standard charger of this product for charging. The use of unknown charger may pose risks of fire and explosion.
4. If available, it is recommended that users use own Lipa 3s @2A charger in lieu of using the USB charger. This helps to charge the battery at a much faster rate.

Notice Before Flight

1. Ensure the batteries for both the tx and helicopter are fully charged.
2. Before turn on the TX, please make sure the throttle control is at the lowest position and the TH.HOLD and 3D mode switches are in the back position (back cover direction).
3. Make sure the TX has paired with helicopter. If not or please carry out the pairing process.
4. Please turn on the TX first, then connect the battery to the helicopter and wait until it paired with TX. When turn off, please unplug the power from the helicopter first, and then turn off the TX.
5. Keep away from people, cars, high-tension power lines and water sources such as ponds, lakes, rivers etc.

Bind With Transmitter

If you have the RTF package, the helicopter ia already paired by the factory. However, if you need to pair again, please follow the following steps.

1. First turn on the transmitter and make sure the throttle stick is at the bottom position, 3D IDLE switch is in the OFF position.

2. Remove the canopy for activating the binding switch.

3. Apply power to the helicopter, the red led flashes slowly, press the code button for 1 second, then the red lamp will go out and get ready for pairing.

4. When the red and blue lights turn on solid, the pairing has been successful.

5. While carrying out the pairing, ensure there are no other transmitters are operating nearby to avoid unintended pairing.
   Notice:

6. When the transmitter is turned on and the throttle hold switch is in the ON position, the transmitter will beep as a warning. The switch should be switched to the OFF position.

7. When the transmitter is turned on and the 3D switch is in the ON position, and the transmitter will beep. The switch should be switched to the OFF position.

8. When transmitter is turned on and the throttle stick is not in the lowest position the transmitter will beep as a warning. The throttle stick should then be pulled down to the lowest position.

Throttle Curve and Pitch Curve

Throttle Curve

| Position| Normal| 3D Idle
---|---|---|---
1| 0| 85
2| 70| 85
3| 70| 85
4| 70| 85
5| 70| 85

Pitch Curve

| Position| Normal| 3D Idle
---|---|---|---
1| 30| 20
2| 40| 35
3| 50| 50
4| 65| 65
5| 80| 80

The above information is for your reference only, you can set the parameters to your demand.

Initial Flight

If you are not familiar with the controls of the E120S , please take a few minutes to get familiar with them and then try your first flight.

Receiver Interface Diagram

Notes: 3.3V is suitable for DSM receiver and 5V is suitable for FUTABA (S-BUS) J receiver

About the Transmitter

This transmitter supports CCPM 1 20 degree helicopter dedicated transmitter, with 3D 6G switching high/low rudder capacity for two joystick modes, main cutout switch (TH.HOLD) and other modes, large screen LCD display multi- function transmitter.

Flight Control Board Adjustment

Debugging pitch of thread

• Explanation: The product has passed the inspection before leaving the factory, the user needs tore-adjust the pitch of thread after replacing the steering gear or related accessories.
• To ensure safety, disconnect the main motor power cord during commissioning to avoid personalinjury caused by motor rotation during commissioning.
• The user comes with a special pitch of thread ruler for helicopters that can be adjusted more accurately.First, bind the aircraft to the code, and the transmitter in 6G self-stabilization mode.
• Press the code matching key on the flight control board 4 times, the mainboard will flash red quickly and enter the debugging mode.
• Use the transmitter to control the aileron rocker, lift rocker, and direction rocker for debugginguntil the swashplate is balanced and the blades are at O pitch of thread
• After the debugging is completed, press the motherboard link key to exit the debugging, themotherboard will resume the red light and the blue light will be on, then you can fly

Troubleshooting

1

| ****

LED on receiver flashes constantly with no responses after connecting batteries to transmitter.

| ****

Transmitter is not bound to receiver. Pairing of the transmitter and receiver failed.

| ****

Re-pair (Refer to P.5, Programming your Transmitter).

2

| ****

The helicopter has no response after connecting batteries to receiver.

| ****

Check whether the transmitter and receiver connecting to power;

check the voltage of transmitter and receiver; Battery pole flake  contact is not good.

| ****

Open the transmitter, make sure the batteries connecting is good Replace and charge transmitter batteries Make sure the battery pole flake contact is good.

3

| ****

When increasing throttle, the main motor does not start and the LED on the Receiver fiashes constantly.

| ****

Low battery voltage, batteries connection is not good.

| ****

Replace and charge the batteries, reconnect the batteries to the receiver board.

4

| ****

Helicopter takes off immediately, once the batteries and receiver connected.

| ****

Didn’t put the throttle to the lowest.

| ****

Put the throttle pole at thelowest position before open the transmitter.

5

| ****

Helicopter vibrates or shakes in fiight.

| ****

Damaged rotor blades, bent main and FS shafts or blade grips too tight causing the main rotor movement not smoothly.

| ****

Replace the main rotor blades, bent main or feathering shafts, loosen the blade grips.

6

| ****

Main rotor blades shake during fiight.

| ****

Feathering shaft or main shaft is bent. FS screw is not tight enough. possible broken gear in the servo, causing shakes. The loose between the swashplates.

| ****

Replace the lateral axis. Tighten the lateral axis screw. Change the Bearing. Remove the servo, and clear debris.

Compress the swash plates. change the tail rotor blades.

7

| ****

The sound of the main rotor becomes softer or drop in head speed.

| ****

Low battery voltage of helicopter.

| Land the helicopter immediately and charge the battery or change to a fully charged battery.

8

| ****

Helicopter has no reaction or does not fiy smoothly.

| ****

Failure of binding.

| ****

Rebind the helicopter and transmitter, make sure you place the helicopter at a steady level close to the transmitter.

9

| ****

3D/6G model helicopter appeared yaw.

| Swashplate servos do not go back in to mid-position or broken.| ****

Recenter the servo arms.Replace the servo.

10

| ****

Tail does not lock in 6G mode.

| Helicopter requires to calibrate in 6G mode.| ****

Refer to 6G mode calibration procedure.

11

| ****

Helicopter took off spin to the left.

| ****

Tail motor power shortage loose blades Tail motor damage.

| ****

Check with the tail rotor blades and the motor shaft, If loose replacement tail rotor blade. Motor damage Replace the tail motor.

12

| ****

Helicopter power is turned supreme speed governor electric sound.

| ****

Brushless speed governor fault or poor contact.

| ****

Check the connectorsreplace speed governor.

Exploded View

Accessory List

Notice for beginners:

1. Please fly with an instructor until you are confident enough.
2. Before flying the model for the first time, you need to fully understood all of the functions provided by the transmitter and the responses of all of the switches.
3. Don’t attempt to fly in 3D mode yet. Practice flying and hovering in 6G mode until you are familiar with it. Then you can practice flying and hovering flight under 3D mode. Once you are familiar with these two modes you can vary out practicing inverted flight with an instructor.
4. Practice hovering flight of inverted moves to build a foundation that making more brilliant flying.
5. This model is not a toy and it can cause damages to people and property. If unsure, it is recommended that you practice with a simulator on a computer before doing real 3D fly with this model to minimize the damage.

ACCESSORIES LIST

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