1. Introduction
This instruction manual provides essential information for the safe and effective operation and maintenance of your TOUCAN RC HOBBY Semi Trailer Flatbed Model 1502. This 1/18 scale plastic semi-trailer is designed to be compatible with the Huina 1/18 770S RC tractor truck. It features electronic support legs and a folding tailboard for realistic loading and unloading scenarios.
Please read this manual thoroughly before initial use to ensure proper setup and to maximize your enjoyment of the product.
2. Safety Information
- Adult Supervision: This product is recommended for users aged 18 years and up. Adult supervision is advised for younger users.
- Battery Safety: Use only the specified Li-Po battery and charging cable. Do not overcharge or short-circuit the battery. Disconnect the battery when not in use.
- Moving Parts: Keep fingers, hair, and loose clothing away from moving parts, especially during operation of the electronic support legs and tailboard.
- Operating Environment: Operate the trailer on flat, stable surfaces. Avoid wet conditions, extreme temperatures, or dusty environments.
- Modifications: Do not attempt to modify the trailer or its electronic components, as this may void the warranty and create safety hazards.
3. Package Contents
Verify that all items listed below are included in your package:
- TOUCAN RC HOBBY Semi Trailer Flatbed 1502
- Li-Po Battery (for trailer functions)
- USB Charging Cable
- Instruction Manual (this document)

Image: The TOUCAN RC HOBBY Semi Trailer Flatbed 1502, shown with its dedicated Li-Po battery and USB charging cable.
4. Specifications
| Product Dimensions | 17.3 x 10 x 6.8 inches (approx. 43.9 x 25.4 x 17.3 cm) |
| Item Weight | 1.76 pounds (approx. 0.8 kg) |
| Model Number | 1502 |
| Compatibility | Designed for Huina 1/18 770S RC Tractor Truck |
| Battery (Trailer) | 1 D battery required (included) - Note: Product description mentions Li-Po, but specifications list D battery. Please verify with product packaging. |
| Manufacturer Recommended Age | 18 years and up |

Image: Detailed dimensions of the Semi Trailer Flatbed 1502, including length, width, and height.
5. Setup
5.1 Battery Installation (Trailer)
- Locate the battery compartment on the underside of the trailer.
- Open the battery compartment cover.
- Connect the included Li-Po battery to the trailer's power connector. Ensure the polarity is correct.
- Carefully place the battery inside the compartment and close the cover securely.
5.2 Charging the Battery
- Connect the USB charging cable to the battery.
- Plug the USB end of the cable into a standard USB power adapter (not included) or a computer USB port.
- The charging indicator on the cable will typically show red during charging and turn off or change color when fully charged. Refer to the charger's specific instructions if available.
- Do not leave the battery charging unattended.
5.3 Connecting the Trailer to the Tractor Truck
The trailer is designed for the Huina 1/18 770S RC tractor. Ensure your tractor truck is powered on and its remote control is paired.
- Position the tractor truck in front of the trailer.
- Carefully back the tractor truck towards the trailer's kingpin until it aligns with the fifth wheel coupling on the tractor.
- Engage the coupling mechanism on the tractor truck to secure the trailer. Refer to your tractor truck's manual for specific coupling instructions.
- Once coupled, the trailer's electronic functions (support legs, tailboard) can be controlled via the tractor's remote control.
Video: This video demonstrates the process of connecting the semi-trailer to the tractor truck, including the operation of the electronic support legs and tailboard. It also shows an excavator being loaded onto the trailer.
6. Operating Instructions
Once the trailer is securely attached to your compatible RC tractor truck and powered on, you can operate its functions using the tractor's remote control.
6.1 Electronic Support Legs
The trailer features electronic support legs that can be raised and lowered. These are typically controlled by a dedicated button or switch on your tractor truck's remote control. Refer to your tractor truck's manual for the exact control input.
- To Lower Legs: Activate the corresponding control on the remote. The legs will extend downwards to support the trailer when uncoupled.
- To Raise Legs: Activate the corresponding control on the remote. The legs will retract upwards, allowing the trailer to be towed.
6.2 Folding Tailboard (Ramps)
The tailboard of the flatbed trailer can be folded up or down to create ramps for loading and unloading other RC vehicles, such as excavators.
- To Lower Tailboard (Ramps): Activate the corresponding control on the remote. The tailboard will fold down to form ramps.
- To Raise Tailboard: Activate the corresponding control on the remote. The tailboard will fold back up into its upright position.

Image: A close-up view of the folding tailboard ramps in action, demonstrating their movement for vehicle loading.
6.3 General Operation
Once the trailer is coupled and its functions are set as desired, operate your RC tractor truck as usual. The trailer will follow the movements of the tractor. Always ensure the load on the flatbed is secure and balanced to prevent tipping.

Image: The semi-trailer flatbed attached to a compatible RC tractor truck, ready for transport.
7. Maintenance
- Cleaning: Use a soft, dry cloth to wipe down the trailer after use. Avoid water or harsh chemicals, as these can damage electronic components.
- Storage: Store the trailer in a cool, dry place away from direct sunlight and extreme temperatures. Disconnect the battery if storing for extended periods.
- Battery Care: Regularly charge the Li-Po battery to maintain its health, but avoid overcharging. If the battery will not be used for a long time, store it at a partial charge (around 50%).
- Inspection: Periodically check for any loose screws, damaged parts, or worn components. Replace any damaged parts immediately to ensure safe operation.
8. Troubleshooting
8.1 Trailer Functions Not Responding
- Check Battery: Ensure the trailer's Li-Po battery is fully charged and correctly installed.
- Check Connections: Verify that all electrical connections within the trailer are secure.
- Tractor Connection: Ensure the trailer is properly coupled to the tractor truck and the tractor's remote control is functioning correctly. The trailer's electronic functions are typically controlled through the tractor's system.
- Remote Control Pairing: Confirm that your tractor truck's remote control is correctly paired with the tractor.
8.2 Difficulty Coupling Trailer
- Alignment: Ensure the tractor's fifth wheel and the trailer's kingpin are perfectly aligned.
- Obstructions: Check for any debris or obstructions in the coupling mechanism.
- Support Legs: Make sure the trailer's support legs are lowered to the correct height for coupling.
9. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or visit the official TOUCAN RC HOBBY website. Keep your proof of purchase for any warranty claims.
Manufacturer: TOUCAN RC HOBBY





