Futaba 2ER 2-Channel Digital Proportional R/C System Instruction Manual

Introduction

Thank you for purchasing the Futaba ATTACK 2ER. This manual provides detailed instructions for the safe and effective use of your 2-channel digital proportional R/C system. Please read it carefully before operation and keep it in a safe place for future reference.

This system is designed for use with cars, boats, yachts, and other models.

For a downloadable PDF version of the manual, please refer to: Official Futaba 2ER Manual (PDF)

Safety Precautions

For your safety and the safety of others, please observe the following precautions. Failure to do so may result in serious injury, death, or physical damage.

Definition of Symbols

• Warning: Indicates a procedure that could result in serious injury or death if ignored or not performed properly.
• Caution: Indicates a procedure that may result in serious injury, physical damage, or undesired operation if ignored or not performed properly.
• ! (Exclamation Mark): Indicates an operation that always must be performed.
• (Prohibited Symbol): Indicates an operation that must not be performed.

Running Preparations Safety Precautions

• Warning:
  • When using a rechargeable battery to power your system, always charge and check the battery voltage prior to operation. Control will be lost if the battery discharges below the minimum voltage level.
• Caution:
  • When the charger is not in use, disconnect it from the outlet to prevent accidents, overheating, and short circuits.

Running (Sailing) Safety Precautions

• Warning:
  • Do not operate two or more models on the same frequency at the same time. This will cause interference and loss of control.
  • Never operate in the rain or run through puddles. Moisture can damage components and lead to loss of control.
  • Do not operate when visibility is limited.
  • Do not operate near people, roads, high tension power lines, or communication broadcasting antennas. Ensure the area is safe and clear of obstacles and people.
  • Do not operate your R/C system within 1 mile of another site where radio control activity may occur, as this can cause interference.
  • Do not operate when you are tired, not feeling well, or under the influence of alcohol or drugs, as judgment will be impaired.
• ! (Important):
  • Prior to operation, always perform a range test. Have a friend hold the model or place it on a stand. Collapse the transmitter antenna and operate from about 10 yards away, checking servo movement. If interference is detected, do not operate.
  • Fully extend the transmitter antenna. Reduced range and loss of control can occur if the antenna is not fully extended.
  • Before turning on the power switch on the transmitter, ensure the stick is at the neutral position. Always turn the transmitter ON first, then the receiver. When turning OFF, turn the receiver OFF first, then the transmitter.
  • Make all adjustments to the radio control system with the engine not running or the electric motor disconnected.
  • Remove the main battery source from electric-powered models when not in use to prevent accidental runaways.
• Caution:
  • Do not touch the engine, motor, speed control, or any part of the model that generates heat while running to avoid burns.

Storage and Disposal Safety Precautions

• Warning:
  • Do not throw a rechargeable battery into a fire, disassemble, or attempt to repair it. This can lead to burns, loss of eyesight, or other injuries due to overheating, damage, and acid leakage. If electrolyte comes into contact with eyes, do not rub; wash immediately with water and seek medical attention.
• Caution:
  • Do not store your R/C system in extreme heat or cold, direct sunlight, high humidity, areas with vibration, dust, steam, condensation, or engine exhaust.
  • When disposing of rechargeable batteries, cover exposed contacts with insulation to prevent short circuits.
  • When using Ni-Cd/Ni-MH batteries, fully discharge them at the end of the day's operation and recharge before next use to prevent "memory effect."

Other Safety Precautions

• Caution:
  • Do not short circuit rechargeable battery terminals to avoid sparks, overheating, fire, and burns.
• ! (Important):
  • When operating two or more models at the same time, have a third person act as a spotter.
  • Beginners should receive instructions regarding safety and operation from an experienced modeler.
  • Always use only genuine Futaba receiver, servos, electronic speed controls, and other optional parts and components.

System Contents

Upon opening the package, verify that the following items are included:

*The contents may vary with the specific system purchased.

Setup and Adjustment

Nomenclature / Handling (Transmitter T2ER)

• Antenna: Extends for optimal range.
• Battery Level Indicator: Two LED display. Green indicates sufficient battery, Red flashing indicates low battery and requires replacement.
• Servo Reversing Switch: (P14) Reverses servo rotation direction.
• Power Switch: Turns the transmitter ON/OFF.
• Throttle Stick: Controls the speed and forward/backward movement of the model.
• Throttle Trim: (P13) Adjusts throttle in small increments to ensure the model remains neutral when the stick is centered.
• Steering Stick: Controls left/right steering of the model.
• Steering Trim: (P13) Adjusts steering in small increments to ensure the model runs straight.
• Crystal Cover: Protects the crystal.
• Charging Jack: (P8) For charging rechargeable batteries (if applicable).

Nomenclature / Handling (Servo S3003)

• Servo Horn: Attaches to the servo output shaft to connect to linkages.
• Mounting Flange: Used to secure the servo in the model.

Receiver and Servo Connection

Connect the receiver, servos, and other components according to the diagrams below. Ensure all connections are firm and correct.

For EP (Electric Powered) Cars

• The Electronic Speed Control (E.S.C.) connects to the motor and battery, and then to the receiver (CH2).
• The Steering Servo connects to CH1 on the receiver.
• The Power Switch connects to the receiver.

For GP (Gas Powered) Cars

• The Throttle Servo connects to CH2 on the receiver.
• The Steering Servo connects to CH1 on the receiver.
• The Power Switch connects to the receiver and the receiver battery.
• Note for R162JE: If your model uses a mechanical speed control (servo-driven), check for a power supply regulator or voltage dropping diode. These devices can cause a voltage drop to the receiver and should be removed before installation.

Assembly Precautions

• Warning:
  • Do not cut or alter the receiver antenna length. This will adversely affect the receiver and make it more susceptible to interference.
• ! (Important):
  • Check receiver, servos, and battery connectors to ensure they are firmly connected. Loose connections can lead to loss of control.
  • Operate each servo horn over its full stroke and check that the linkage does not bind or is not too loose. Excessive force can cause servo problems.
  • For Electric Cars and Boats: Isolate the receiver from vibration by attaching it to the chassis or mounting plate with thick double-sided tape.
  • For Gas Powered Cars and Boats: Isolate the receiver from vibration by wrapping it in foam rubber or similar cushioning material. Protect from water damage by placing it in a plastic bag or waterproof radio box.
  • Keep all devices that emit high-frequency noise (motors, batteries, heavy current wiring) at least 1/2 inch away from the receiver and antenna.
  • Use only genuine Futaba crystal sets as specified in this manual.
  • Install electronic speed control heat sinks and other conductive components so they do not contact aluminum, carbon fiber, or other conductive materials.
  • Noise suppression capacitors should be installed on almost all motors to prevent high-frequency noise and loss of control.
  • Inspect all linkage installations and points where metal could contact other metal parts. Ensure no contact under vibration to prevent interference.
• Caution:
  • Do not disassemble any part of this system not specified in the instruction manual.

Digital Proportional Adjustment

When making these adjustments, ensure the motor is disconnected or the engine is not running.

Servo Horn Installation Instructions

1. Connect the receiver, servos, and other components, then turn on the power switches for the transmitter and receiver.
2. Ensure the Steering trim and Throttle trim on the transmitter are at their neutral position. Both servos will move to the neutral position.
3. Install the servo horn as described in the instruction manual provided with your model.

Reversing the Servo Operation Direction

If a servo operates in the opposite direction required for your application, reverse its rotation using the reversing switch on the transmitter.

Operation (Description of Functions)

Steering Trim

Steering neutral adjustments are made by moving the Steering trim lever left or right.

Racers Tip: When installing a servo, ensure it is at its neutral position. Adjust the servo horn hole position and linkage to be parallel. If using a servo saver, place it as close to the center as possible. Ensure the steering trim on the transmitter is at neutral.

Trim Operation and Maximum Travel: Changing the trim affects overall settings. Recheck your installation for maximum servo travel after trim adjustments.

When Trim Usage is Extreme: If significant trim movement is needed to achieve neutral, reposition the servo horn or servo saver closer to the neutral position and inspect your linkage.

Throttle Trim

Throttle neutral adjustments are made by moving the throttle trim lever up or down.

Racers Tip: For electronic speed controls, set the throttle trim to neutral and adjust the speed control. For gas-powered models, set the trim to neutral and adjust the linkage to fully close the carburetor according to the engine manual.

Trim Operation and Travel: Trim adjustments affect overall servo travel. Check the brake side (backward) movement after making changes.

When Trim Movement is Extreme: If significant trim movement is needed to achieve neutral, recenter the servo horn closer to the neutral position and inspect your throttle linkage.

Servo Reverse

This function reverses the rotation direction of the Steering and Throttle servos. If the trim position deviates from the center, the deviation will be on the opposite side when the servo is reversed.

Changing the Neutral Position (Throttle Stick)

This adjustment is typically only needed when a large forward stroke of the throttle stick is required, such as with an FET E.S.C. The factory setting is center neutral.

1. Remove the four rear case screws and the front case of the transmitter.
2. Move the setting lever at the throttle stick body to the outside.
3. Close the front case carefully, ensuring stick levers, trim levers, power switch, LEDs, and battery contacts do not get caught. Tighten the four screws.

To return from 2:1 to 1:1 (neutral center), move the setting lever to the 1:1 side with the stick lever pushed to the HI side. Otherwise, the setting lever cannot move.

Modifying the Throttle Stick to a Ratchet Type

This modification requires opening the transmitter front case (refer to "Changing The Neutral Position" for instructions on opening the case). A ratchet plate (sold separately) is necessary.

1. Remove the spring and swing arm.
2. Install the ratchet plate with the screw.

Maintenance

• Battery Care:
  • Always ensure batteries are fully charged before operation.
  • For rechargeable batteries (Ni-Cd/Ni-MH), fully discharge them after use and recharge before the next operation to prevent memory effect.
  • Remove batteries from the transmitter if it will not be used for a short or long period to prevent leakage and corrosion. If leakage occurs, clean the battery case and contacts thoroughly.
• Cleaning:
  • Wipe dirty contacts with a dry cloth.
• Storage:
  • Store the R/C system in a dry, temperate environment, away from direct sunlight, extreme temperatures, humidity, vibration, dust, steam, condensation, and engine exhaust.
• Antenna:
  • Ensure the transmitter antenna is fully extended during operation.

Troubleshooting

If your R/C system does not operate correctly, has short range, or operates intermittently/erroneously, refer to the table below. If the issue persists, contact a Futaba dealer.

Specifications (Ratings)

Specifications and ratings are subject to change without prior notice.

Transmitter T2ER

• Channels: 2 (AM transmitter)
• Transmitting Frequency: 27, 29, 40, 41, 72 or 75 MHz
• Modulation Method: AM
• Power Requirement: 12V (8 x AA penlight batteries)
• Current Drain: 250mA

Receiver R162JE

• Channels: 2 (AM receiver)
• Receiving Frequency: 27, 29, 40, 41, 72 or 75 MHz
• Intermediate Frequency: 455kHz
• Power Requirement: 4.8 - 8.4V (Built-in BEC)
• Current Drain: Approx. 6mA (at no signal)
• Size: 28.6 x 42.9 x 15.3mm
• Weight: 16.1g

Receiver R152JE

• Channels: 2 (AM receiver)
• Receiving Frequency: 27, 29, 40, 41, 72 or 75 MHz
• Intermediate Frequency: 455kHz
• Power Requirement: 6V
• Current Drain: Approx. 5mA (at no signal)
• Size: 25.6 x 37.7 x 15.3mm
• Weight: 14.8g

Servo S3003 (Standard Servo)

• Power Requirement: 4.8V or 6V (common with receiver)
• Current Drain: 8mA (at 6V / Idle)
• Output Torque: 3.2kg-cm (at 4.8V)
• Operating Speed: 0.23sec/60 degrees (at 4.8V)
• Size: 40.4 x 19.8 x 36mm
• Weight: 37.2g

User Tips

Based on general R/C system usage and common practices:

• Always double-check battery polarity when installing new batteries to prevent damage to the transmitter.
• For optimal performance and longevity, consider using high-quality rechargeable batteries and a dedicated charger.
• Regularly inspect all wiring and connections for wear or looseness, especially after crashes or rough use.
• Keep your R/C system clean and free of dust and debris, particularly around moving parts like sticks and trims.
• If experiencing range issues, ensure both transmitter and receiver crystals match and are securely seated.

Warranty and Support

Before seeking repair service, please re-read this instruction manual and ensure the system is being operated as intended. If you continue to experience issues, pack your system in its original shipping materials and send it to your nearest authorized Futaba R/C Service Center.

Include a detailed note with your package, describing:

• Symptoms of the problem.
• Any unusual mounting conditions.
• A list of items you are sending and what you want to be repaired.
• For warranty repair, include the warranty card supplied with your system.

Futaba Corporation Contact:
Phone: +81 475 32 6982
Facsimile: +81 475 32 6983
Address: 1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan