1. Product Overview
This manual provides instructions for the Guy-Tech 6V AC DC adapter, designed as a replacement power supply and charger for Kidtrax CAT Bulldozer 6V battery-powered vehicles. It features a round tip connector and includes a European plug for compatibility with European power outlets.

Figure 1: Guy-Tech 6V AC DC Adapter with integrated cable and separate European plug adapter.
2. Safety Information
To ensure safe operation and prolong the life of your adapter, please observe the following safety guidelines:
- This adapter is equipped with multiple protection features, including overvoltage protection, overcurrent protection, and short-circuit protection, to safeguard your device and the adapter itself.
- Ensure the adapter is used with devices that match its voltage and current specifications (6V DC).
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to open or modify the adapter. Refer all servicing to qualified personnel.
- Always disconnect the adapter from the power outlet when not in use or before cleaning.
3. Package Contents
Verify that all items are present in the package:
- 1 x Guy-Tech 6V AC DC Adapter Charger
- 1 x European 2-pin Plug Adapter
Note: This adapter is a new replacement product and is not an original equipment manufacturer (OEM) part.
4. Setup
Follow these steps to set up your Guy-Tech 6V AC DC Adapter:
- Unpack: Carefully remove the adapter and the European plug adapter from their packaging.
- Attach European Plug Adapter (if needed): If you are in a region requiring a European 2-pin plug, firmly attach the provided European plug adapter to the prongs of the main AC adapter. Ensure it clicks securely into place.
- Connect to Power Outlet: Plug the adapter (with or without the European plug adapter, depending on your region) into a standard 100V-240V AC wall outlet. The adapter is designed for worldwide input voltage compatibility.
- Connect to Device: Insert the round DC barrel connector at the end of the adapter's cable into the corresponding 6V DC input port on your Kidtrax CAT Bulldozer or other compatible device.

Figure 2: Close-up view of the European 2-pin plug adapter, showing how it connects to a power supply plug.
5. Operating Instructions
Once the adapter is properly connected to both the power outlet and your device, it will begin to supply power or charge the device's battery. The adapter is designed for high power exchange efficiency to maintain stable operation and control working temperature.
- Ensure the device requiring power or charging is turned off or in a charging-compatible mode, if applicable.
- Monitor the device's charging indicator (if available) to confirm charging status.
- Disconnect the adapter from the device once charging is complete or if the device is not in use.
6. Maintenance
Proper maintenance will help ensure the longevity and reliable performance of your adapter:
- Cleaning: Use a soft, dry cloth to clean the adapter. Do not use liquid cleaners or aerosols.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cable Care: Avoid bending or crimping the power cable excessively, especially near the connectors, as this can damage the internal wires.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires or cracked casing. Discontinue use if damage is found.
7. Troubleshooting
If you encounter issues with your adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging/powering on. |
|
|
| Adapter feels warm during use. |
|
|
8. Specifications
| Brand | GUY-TECH |
| Model Number | EXEUE20420 |
| Input Voltage | 100V - 240V AC (Worldwide Compatible) |
| Output Voltage | 6V DC |
| Connector Type | Round Tip DC Barrel Connector |
| Special Features | Travel, Universal, Overvoltage Protection, Overcurrent Protection, Short-circuit Protection |
| Color | Black |
| Power Source | Electric Cable |
| Compliance | CE, FCC, RoHS |
9. Warranty and Support
As this product is a replacement adapter, specific warranty details may vary depending on your point of purchase. Please refer to the seller's return policy or contact the seller directly for any warranty-related inquiries or technical support.
For general inquiries or assistance, you may also visit the GUY-TECH brand page on Amazon.