Introduction
Thank you for choosing the Carson 500907667 1:20 MB Arocs Concrete Mixer. This remote-controlled vehicle is designed for enthusiasts of all ages, offering a realistic and engaging construction experience. It features detailed design, advanced functions like engine sound, LED lighting, and a rotating drum, all controlled via a seamless 2.4 GHz remote. Please read this manual carefully before operating the vehicle to ensure safe and optimal performance.
Safety Information
- Age Recommendation: This product is recommended for users aged 8 years and older. Adult supervision is advised for younger users.
- Battery Safety:
- Use only the specified NiMH battery and charger provided.
- Do not attempt to charge non-rechargeable batteries.
- Do not short-circuit battery terminals.
- Remove batteries from the vehicle and remote control when not in use for extended periods.
- Dispose of batteries responsibly according to local regulations.
- Operating Environment:
- Operate the vehicle in open, clear areas, away from people, pets, and obstacles.
- Avoid operating near water, heat sources, or in extreme weather conditions.
- Do not operate in public streets or areas with vehicle traffic.
- General Precautions:
- Keep fingers, hair, and loose clothing away from moving parts.
- Do not modify or disassemble the vehicle or remote control.
- Store the product in a cool, dry place when not in use.
Package Contents
The Carson 500907667 MB Arocs Concrete Mixer package includes the following items:
- 1x Carson 1:20 MB Arocs Concrete Mixer Vehicle
- 1x 2.4 GHz Remote Control Transmitter
- 1x NiMH Rechargeable Battery Pack (for vehicle)
- 1x USB Charger Cable (for NiMH battery)
- 2x AA Batteries (for remote control)
- 1x User Manual (this document)

Image: The complete set including the yellow concrete mixer truck, the orange remote control, two AA batteries, and the green NiMH battery pack with its USB charger cable.
Setup
1. Charging the Vehicle Battery
- Connect the NiMH rechargeable battery pack to the USB charger cable.
- Plug the USB charger cable into a standard USB power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light on the USB charger will show the charging status. A full charge takes approximately 2.5 hours.
- Once fully charged, disconnect the battery from the charger.
Note: A fully charged battery provides approximately 30 minutes of operating time.
2. Installing Batteries in the Remote Control
- Locate the battery compartment on the back of the 2.4 GHz remote control.
- Open the battery compartment cover.
- Insert the two included AA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
3. Installing the Vehicle Battery
- Locate the battery compartment on the underside of the concrete mixer vehicle.
- Open the battery compartment cover.
- Connect the charged NiMH battery pack to the vehicle's battery connector.
- Carefully place the battery pack inside the compartment and close the cover.
4. Pairing the Remote Control with the Vehicle
The vehicle and remote control are pre-paired from the factory. If re-pairing is needed:
- Ensure both the vehicle and remote control are turned off.
- Turn on the vehicle first. The vehicle's lights may flash.
- Within 5 seconds, turn on the remote control.
- The lights on the vehicle should become solid, indicating successful pairing.
- If pairing fails, turn off both devices and repeat the process.
Operating Instructions
Familiarize yourself with the remote control layout and functions before operating the vehicle.
Remote Control Functions:
| Control | Function |
|---|---|
| Left Joystick (Up/Down) | Forward / Backward Movement |
| Left Joystick (Left/Right) | Steering (Left / Right) |
| Right Button (Top) | Engine Sound On/Off |
| Right Button (Middle) | LED Lights On/Off |
| Right Button (Bottom) | Demo Function Activation |
| Left Button (Top) | Concrete Drum Rotation (Clockwise) |
| Left Button (Bottom) | Concrete Drum Rotation (Counter-Clockwise) |
Driving the Vehicle:
- Use the left joystick to control the vehicle's movement. Push forward for forward motion, pull back for reverse.
- Move the left joystick left or right to steer the vehicle.
- Practice in an open area to get accustomed to the controls.

Image: Side profile of the yellow Carson MB Arocs Concrete Mixer, showing the detailed chassis and the white and red striped rotating drum.

Image: Rear view of the concrete mixer truck, highlighting the discharge chute and the detailed rear lights and license plate area.
Special Functions:
- Engine Sound: Press the top right button on the remote to toggle the realistic engine sound on or off.
- LED Lights: Press the middle right button to turn the vehicle's LED headlights and taillights on or off.
- Drum Rotation: Use the top and bottom left buttons to rotate the concrete drum clockwise or counter-clockwise.
- Demo Function: Press the bottom right button to activate the demo mode. The vehicle will automatically perform a sequence of its functions (driving, lights, sound, drum rotation). Press any control to exit demo mode.

Image: The yellow concrete mixer truck parked on a gravel surface outdoors, with its headlights illuminated, suggesting operation in low light conditions.

Image: A rear-side view of the concrete mixer truck on a gravel surface, showing the rotating drum and the illuminated taillights, indicating its operational features.
Maintenance
- Cleaning: Use a soft, dry cloth to wipe down the vehicle and remote control. Do not use water or chemical cleaners, as this can damage electronic components.
- Battery Care:
- Always fully charge the NiMH battery before first use and after each play session.
- Do not overcharge the battery.
- If storing for an extended period, charge the battery to about 50% capacity and store in a cool, dry place.
- Remove batteries from both the vehicle and remote control if not used for several weeks.
- Storage: Store the vehicle and remote control in a dry, dust-free environment, away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Vehicle does not respond to remote control. |
|
|
| Short operating time. |
|
|
| Functions (lights, sound, drum) not working. |
|
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | 500907667 |
| Scale | 1:20 |
| Dimensions (L x W x H) | 38 x 15.5 x 20.5 cm |
| Weight | 1.3 kg |
| Material | Plastic |
| Color | Yellow |
| Remote Control Frequency | 2.4 GHz |
| Vehicle Battery Type | NiMH Rechargeable Battery |
| Vehicle Operating Time | Approx. 30 minutes |
| Vehicle Charging Time | Approx. 2.5 hours |
| Remote Control Battery Type | 2x AA Batteries (included) |
| Special Features | Engine Sound, LED Lights, Rotating Concrete Drum, Demo Function |
Warranty and Support
Carson products are known for their quality and reliability. For warranty information and technical support, please refer to the official Carson website or contact your local retailer.
As a specialist in remote-controlled vehicles for over 25 years, Carson ensures excellent quality and product safety.
- Manufacturer: Carson
- Website: www.carson-models.com (Please check for regional websites)
- Customer Service: Refer to the contact information provided on the official website or product packaging for support.





