Arrma SENTON 4x4 MEGA - User Manual

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ARRMA 4x4

Vehicle

TACTIC

TTX300

Transmitter

NiMh Battery

Charger

ARRMA

2400mAh 8.4v

NiMh Battery

REQUIRED:

4x AA Batteries

Questions and Answers

K
Katherine KnoxAug 14, 2025
What to do if steering/throttle operation is intermittent on my Arrma Motorized Toy Car?
- D
  David PriceAug 14, 2025
  If you're experiencing intermittent steering or throttle operation with your Arrma Motorized Toy Car, it could be due to: * The MEGA ESC shutting down because of overheating. Stop driving and allow the MEGA ESC or motor to cool down. * The Tactic transmitter and receiver unit not being properly bound. Check for sources of interference and re-bind the transmitter/receiver.
M
Michele JarvisAug 21, 2025
Why does my Arrma Motorized Toy Car have a short runtime?
- V
  valerieboydAug 21, 2025
  If you experience short runtime with your Arrma Motorized Toy Car, consider these possible causes: * The battery might be damaged or not fully charged. Check its condition and replace or recharge it as needed. * The MEGA electric motor could be dirty or damaged. Clean it, check its condition, and consider replacing it if necessary. * The ESC battery mode might be incorrect, with the voltage cutoff set too high for your battery. Adjust the battery mode of the MEGA Unit. * The Tactic transmitter throttle trim might be incorrectly set. Ensure the throttle trim is set to zero or neutral. * The electric motor might be dirty or damaged. Clean it, check its condition, and consider replacing it if necessary.
G
grantdeniseAug 25, 2025
Why does my Arrma SENTON 4x4 MEGA wander left or right on its own?
- W
  williamsheatherAug 25, 2025
  If your Arrma Motorized Toy Car is wandering left or right without steering input, here's what could be happening: * The Tactic steering trim setting may be off. Adjust the steering trim as described in the manual. * There might be damaged steering components. Inspect the components and replace them if needed. * The drivetrain could be dirty or damaged. Clean it, check its condition, and replace any damaged parts.
J
Johnny WrightAug 27, 2025
Why do I have no control or short range with my Arrma SENTON 4x4 MEGA Motorized Toy Car?
- G
  gkramerAug 27, 2025
  If you have no control of your Arrma Motorized Toy Car or are experiencing short range, check the following: * Ensure the Tactic transmitter batteries are not weak and are fitted correctly. Check and refit them according to the manual. * Verify that the servo wires to the receiver are not loose and are connected correctly. Reinstall the signal wires to the receiver. * Confirm that the Tactic transmitter and receiver unit are correctly 'bound'. If not, they need to be bound.
R
Rachel HansenAug 31, 2025
Why is the steering/throttle operation reversed on my Arrma SENTON 4x4 MEGA Motorized Toy Car?
- C
  Chase HudsonAug 31, 2025
  If the steering or throttle operation is reversed on your Arrma Motorized Toy Car, the cause could be: * The relevant channel of the Tactic transmitter is reversed. Reverse the relevant channel on the Tactic transmitter as shown in the manual. * The wires from the ESC to the motor are not connected correctly. Reconnect them in the correct orientation (orange to red and blue to black), ensuring a tight fit. If the fit is not tight, pinch the female connector with pliers.
S
smithmarissaSep 3, 2025
What causes my Arrma SENTON 4x4 MEGA to drive without input?
- L
  Leslie AlvaradoSep 3, 2025
  If your Arrma Motorized Toy Car drives without input, it might be due to: * The Tactic transmitter throttle trim being incorrectly set. The throttle trim needs to be set to zero/neutral. * An incorrect neutral throttle position of the MEGA ESC Unit. Set the throttle trim to zero, switch the MEGA Unit off, and then on again to reset its neutral position.
L
laura15Sep 7, 2025
How to fix limited steering angle on my Arrma SENTON 4x4 MEGA Motorized Toy Car?
- B
  Brittany JohnsonSep 7, 2025
  If you're experiencing a limited steering angle on your Arrma Motorized Toy Car, the cause could be: * The Tactic transmitter steering dual-rate is set incorrectly. Adjust the Tactic transmitter dual-rate. * There are damaged steering components. Check the components and replace them if necessary.
K
kevansSep 10, 2025
What to do if my Arrma Motorized Toy Car does not reverse?
- T
  Tracy WalkerSep 10, 2025
  If your Arrma Motorized Toy Car does not reverse, it could be due to: The MEGA Waterproof ESC being damaged. If this is the case, consider replacing it.
R
Robert BlairNov 16, 2025
Why my Arrma SENTON 4x4 MEGA does not move?
- M
  Manuel HudsonNov 16, 2025
  If your Arrma Motorized Toy Car doesn't move, there are several potential causes: * The batteries in the Tactic transmitter may be incorrectly installed. Check and refit them according to the manual. * The drive battery in the model might be weak, damaged, or missing. Try installing fresh, charged batteries. * The motor or ESC wires could be frayed or broken. Inspect them, reconnect them if necessary, and ensure they are insulated. * The ESC may have shut down due to overheating. Allow the MEGA ESC or motor to cool down. * The electric motor or MEGA waterproof ESC could be damaged. In this case, replacement might be necessary. * There might be damage to the transmission/drive-line. Check the components and replace if needed. * The ESC low voltage cutoff might have activated ...

Summary

Important Safety Warnings

General Operation Safety Rules

LiPo Battery Safety and Disposal

Details critical safety measures for LiPo batteries, charging, storage, and disposal.

Battery Handling and Charging Practices

Stresses safe practices for handling and charging batteries.

How to Drive Your ARRMA Vehicle

Controller Operation and Grip

Driving Controls: Forward, Brake, Reverse

Powering Down and Storage

Electronic Speed Controller (ESC) Details

ESC Components and Initial Setup

Low Voltage Cut Off Function

ESC Tuning and Battery Modes

ESC Tuning Options: Jumpers

How to adjust battery mode and reverse lock-out using jumpers.

ESC Temperature Protection

Configuring Battery Modes (NiMH;LiPo)

How to set the ESC for NiMH or LiPo battery types.

Radio Gear Overview and Controls

Radio Control Adjustments

Radio Gear Setup Procedures

Binding Transmitter to Receiver

Steps to link the transmitter to the vehicle's receiver.

End Point Adjustment Guide

How to set the limits for steering and throttle control.

Advanced Setup and Compliance

Failsafe Setup Configuration

Important Battery Cautions

Important warnings regarding battery handling and potential hazards.

Troubleshooting: Vehicle Movement Issues

Vehicle Does Not Move

Possible causes and solutions for the vehicle failing to move.

Vehicle Does Not Reverse

Troubleshooting steps for when the vehicle cannot reverse.

Vehicle Drives Without Input

Solutions for the vehicle moving unexpectedly.

Short Runtime Issues

Explains causes for a short battery life or runtime.

Sluggish Performance Problems

Addresses issues related to slow or unresponsive vehicle performance.

Troubleshooting: Control and Performance

Control Range and Interference Issues

Solutions for loss of control or short operational range.

Intermittent Control Operation

Troubleshooting for steering or throttle control that works inconsistently.

Steering Input and Wandering Issues

Reversed Steering;Throttle Controls

Limited Steering Angle Solutions

Arrma SENTON 4x4 MEGA Specifications

General

Scale	1/10
Vehicle Type	Short Course Truck
Drive Type	4WD
Motor Type	Brushed
Motor Size	540
Motor	540
Top Speed	30+ mph
Body	Polycarbonate
Chassis	Modular
Radio	2.4GHz
Servo	Waterproof

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