1. Introduction
Welcome to the Absima AMT3.4 BL Brushless RC Monster Truck user manual. This guide provides essential information for setting up, operating, and maintaining your 1:10 scale, 4-wheel drive (4WD) ready-to-run (RTR) electric monster truck. Designed for performance and durability, the AMT3.4 BL features a powerful brushless motor and waterproof electronics, offering an exciting remote control experience.

Figure 1: The Absima AMT3.4 BL Brushless RC Monster Truck, showcasing its robust design and blue body with white racing stripes.
2. Safety Information
WARNING: This product is not a toy. It is a high-performance remote-controlled vehicle intended for users aged 14 years and older. Adult supervision is recommended for younger users.
- Always operate the vehicle in open areas away from people, pets, and obstacles.
- Never operate the vehicle near public roads or in areas with vehicle traffic.
- Keep fingers, hair, and loose clothing away from moving parts such as wheels and gears.
- Do not touch the motor or electronic speed controller (ESC) immediately after use, as they may be hot.
- Ensure batteries are charged safely and correctly. Use only compatible chargers and batteries.
- Disconnect the battery from the vehicle when not in use and during storage.
- The vehicle contains electronic components that are waterproof, but it is not designed for submersion. Avoid deep water.
3. Package Contents
Upon unboxing, please verify that all components listed below are present:
- 1 x Absima AMT3.4 Brushless Monster Truck (RTR)
- 1 x Absima CR2S Remote Control (2.4 GHz)
- 1 x User Manual (English)
- (Note: Batteries for the vehicle and remote control are not included.)
4. Product Features
The Absima AMT3.4 BL is engineered with advanced features for superior performance:
- Water-resistant 50A BL speed controller, compatible with Ni-Mh and 3S LiPo batteries.
- Powerful 3300KV Brushless motor (size 540), capable of speeds exceeding 60 KM/H.
- New 4-channel CR4S 2.4 GHz A.F.H.D.S. Radio System for reliable control.
- Durable Aluminum Shock Absorbers for improved handling over rough terrain.
- Steel motor transmission for enhanced durability.
- Responsive 4kg Servo.
- Robust 4-wheel drive system.
- Lightweight chassis design for extended run times.
- Reinforced fiber plastic parts for quality and resilience.
- Programmable electronic speed controller with adjustable brake, neutral position, and driving modes.
- Automatic low voltage cut-off for battery protection.
- Central chassis reinforcement and aluminum motor mount.
- Transmission entirely on ball bearings and protected by casings.
- Treated steel drive shafts (front and rear).
- Two front and rear differentials.
- Aerodynamic polycarbonate body, pre-painted.
- Large protective front bumper.
5. Setup Guide
5.1. Battery Installation (Vehicle)
The AMT3.4 BL requires a 7.4V NiMH or 2S 7.4V LiPo battery (not included). Ensure the battery is fully charged before installation.
- Locate the battery compartment on the chassis.
- Securely place the charged battery into the compartment.
- Connect the battery connector to the ESC's power input. Ensure correct polarity.
- Secure the battery compartment cover.

Figure 2: Detailed view of the electronic components, including the motor, ESC, and servo, within the chassis.
5.2. Transmitter Battery Installation
The Absima CR2S remote control requires 4x AA batteries (not included).
- Open the battery compartment on the back of the transmitter.
- Insert 4x AA batteries, observing the correct polarity (+/-).
- Close the battery compartment cover securely.
5.3. Initial Checks
- Ensure all screws are tightened and components are secure.
- Check that the wheels spin freely and are properly attached.
- Verify that the steering servo operates smoothly and the wheels turn left and right when the steering wheel on the transmitter is moved.
- Confirm that the throttle trigger on the transmitter controls the motor forward and reverse.
6. Operating Instructions
6.1. Powering On
- Turn on the transmitter first.
- Then, turn on the power switch on the vehicle's ESC.
- Wait for the vehicle and transmitter to establish a connection (indicated by LED lights).
6.2. Driving the Vehicle
- Steering: Use the steering wheel on the transmitter to control the direction of the front wheels (left/right).
- Throttle: Pull the trigger towards you for forward motion. Push the trigger away from you for reverse/brake.
- Braking: Push the throttle trigger forward to apply brakes. A second push may engage reverse.
- Practice in an open area to get accustomed to the controls before attempting high-speed maneuvers.

Figure 3: The AMT3.4 BL ready for action in an outdoor environment, demonstrating its off-road capability.
6.3. Powering Off
- Turn off the power switch on the vehicle's ESC first.
- Then, turn off the transmitter.
- Disconnect the battery from the vehicle for safety and to prevent discharge.
7. Maintenance
Regular maintenance will ensure the longevity and optimal performance of your Absima AMT3.4 BL.
- Cleaning: After each use, especially in dusty or dirty conditions, clean the vehicle using a soft brush or compressed air. Avoid using water directly on electronics unless specifically designed for it (the ESC is waterproof, but general cleaning should be dry).
- Inspecting Components: Regularly check for loose screws, damaged parts, or excessive wear on tires, gears, and suspension components.
- Bearings: The transmission is entirely on ball bearings. Periodically check for smooth operation and lubricate if necessary.
- Shocks: Inspect the aluminum shock absorbers for leaks or damage. Ensure they operate smoothly.
- Differentials: Check the front and rear differentials for smooth operation.
- Drive Shafts: Inspect the treated steel drive shafts for any bends or damage.
- Repairability: The AMT3.4 BL is 100% repairable. Replacement parts are available from Absima dealers.

Figure 4: Detailed view of the front suspension system, including the aluminum shock absorbers and durable chassis components.
8. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Vehicle does not respond to transmitter. |
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| Vehicle moves slowly or intermittently. |
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| Steering is unresponsive or erratic. |
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9. Specifications
| Feature | Detail |
|---|---|
| Model Name | AMT 3.4 BL (12244) |
| Brand | Absima |
| Scale | 1:10 |
| Drive Type | 4-Wheel Drive (4WD) |
| Motor Type | Brushless 3300KV (Size 540) |
| Speed Controller | 50A BL (Water-resistant, Ni-Mh/3S LiPo compatible) |
| Radio System | Absima CR4S 2.4 GHz A.F.H.D.S. (4-channel) |
| Servo | 4kg |
| Chassis Material | Lightweight Plastic |
| Body Material | Polycarbonate (Painted) |
| Shock Absorbers | Hydraulic Aluminum (Adjustable) |
| Dimensions (L x W x H) | 61 x 35 x 25 cm (24 x 13.8 x 9.8 inches) |
| Item Weight | 3 Kilograms (6.6 lbs) |
| Recommended Age | 14 years and up |
| Batteries Required | Yes (Not included) |
10. Warranty and Support
Information regarding specific warranty terms and conditions for the Absima AMT3.4 BL is not provided in this manual. For warranty claims, technical support, or to inquire about spare parts, please contact Absima customer service or your authorized Absima dealer. Keep your proof of purchase for any warranty-related inquiries.
For more information, visit the official Absima website or consult your local hobby shop.





