1. Safety Precautions
Operating high-power RC systems can be hazardous. Please read and understand all instructions before use to prevent injury or damage. Always ensure proper installation and maintenance.
- Keep hands, hair, and loose clothing away from rotating parts.
- Ensure all connections are secure and insulated to prevent short circuits.
- Do not operate the motor in wet conditions unless specifically designed for it.
- Always disconnect the battery when not in use or during maintenance.
- This product is recommended for users 18 years and older.
2. Product Overview
The HOBBYWING Xerun 4268SD G3 1900kV is a high-performance sensored brushless motor designed for 1/8 scale RC vehicles. It features advanced technology for precise control and robust power delivery, especially when paired with compatible Hobbywing ESCs.
Image: HOBBYWING Xerun 4268SD G3 1900kV Sensored Brushless Motor. This image displays the motor from an angled perspective, highlighting its black ribbed casing, gold-colored sensor port, and the output shaft with 'L-AUSB' etched on it. The motor's model and KV rating are visible on the side.
3. Features
- Pure Sensor Mode: When paired with Hobbywing XeRun XR8 series ESCs, the motor's built-in chip allows the ESC to automatically identify the motor, establishing a pure sensor mode power system for enhanced control and feel.
- Enhanced Turbo Timing: When used with the Hobbywing XERUN XR8 PRO G2 ESC, the motor can activate more effective turbo timing, instantly releasing maximum power and potentially increasing speed by up to 50%.
- "Error-Free" Hall Sensor System: Utilizes patented technology with an independent, high-speed, and high-precision encoder to consistently output a pure rotor position signal, preventing sensor signal interference and ensuring stable operation in sensored mode.
- Adjustable Mechanical Turbo Timing: The motor's mechanical turbo timing can be adjusted from 20-40°, allowing precise calibration of output power to meet various application requirements.
- Smooth Low-Speed Performance: Features a low cogging effect and minimal torque pulse, resulting in very smooth operation at low speeds and superior handling performance.
- IP5X Dustproof Rating: The Off-Road variant of this motor boasts an IP5X protection grade, providing excellent dustproof performance suitable for dusty off-road track environments.
- Optimized Lightweight Design: The 4268SD G3 design is optimized to significantly reduce weight, making the 1900KV version approximately 20g lighter than comparable motors, which aids in vehicle balance adjustment.
4. Setup and Installation
- Mounting the Motor: Securely mount the motor to your vehicle's motor mount using appropriate screws. Ensure proper gear mesh between the motor pinion and the spur gear.
- Connecting to ESC: Connect the three motor wires to the corresponding output wires of your Electronic Speed Controller (ESC). Maintain correct phase order for proper rotation.
- Sensor Cable Connection: Connect the sensor cable from the motor to the sensor port on your compatible Hobbywing XeRun XR8 series ESC. Ensure the connector is fully seated and oriented correctly.
- Power Supply: Connect your battery pack to the ESC. Always double-check polarity.
- Initial ESC Calibration: Refer to your ESC's instruction manual for initial calibration procedures to ensure proper communication between the ESC and motor.
5. Operating Instructions
Once the motor is installed and the ESC is calibrated, you can begin operation. Always start with conservative settings and gradually increase power as you become familiar with the system's response.
- Throttle Control: Use your radio transmitter to control the throttle. The sensored system provides smooth and precise throttle response, especially at low speeds.
- Adjusting Mechanical Turbo Timing: If desired, the mechanical turbo timing can be adjusted between 20-40 degrees. This adjustment should be done carefully and incrementally, observing motor temperature and performance. Consult advanced tuning guides for optimal settings.
- Monitoring Temperatures: Regularly monitor the motor and ESC temperatures during operation to prevent overheating. Excessive temperatures can damage components.
6. Maintenance
- Cleaning: Due to its IP5X rating, the motor is resistant to dust. However, regularly clean the motor's exterior to remove dirt and debris, especially after off-road use. Use a soft brush or compressed air.
- Inspection: Periodically inspect all wiring and connections for signs of wear, fraying, or damage. Ensure the sensor cable is intact and securely connected.
- Bearing Check: Check the motor bearings for smooth operation. If they feel rough or noisy, they may need replacement.
- Storage: Store the motor in a clean, dry environment away from extreme temperatures and direct sunlight.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor not spinning or erratic operation | Incorrect ESC calibration, loose motor/sensor connections, damaged sensor cable, ESC issue. | Recalibrate ESC. Check all motor and sensor cable connections. Inspect sensor cable for damage. Test with a different ESC if possible. |
| Motor overheating | Incorrect gearing, excessive load, aggressive timing settings, insufficient cooling. | Adjust gearing (smaller pinion). Reduce timing settings. Ensure adequate airflow to the motor. Reduce run time. |
| Loss of sensored feel (cogging) | Damaged or disconnected sensor cable, sensor board issue. | Check sensor cable connection and integrity. Replace sensor cable if damaged. |
8. Specifications
- Model: Xerun 4268SD G3
- KV Rating: 1900kV
- Item Model Number: 30401906
- Material: Metal
- Item Weight: 315 Grams (11.11 ounces)
- Product Dimensions: 5.25 x 3.5 x 2.25 inches
- Recommended Age: 18 years and up
9. Warranty and Support
HOBBYWING North America provides an official manufacturer warranty. Please note that purchases from non-authorized stores in North America (e.g., Hong Kong, Chinese stores) may void the warranty.
For warranty claims, technical support, or any product-related inquiries, please contact HOBBYWING North America directly. Their online store, HOBBYWINGDirect.com, is a primary resource for support and information.
10. Legal Disclaimer
HOBBYWING North America cannot be held responsible for typographical errors and assumes no responsibility for said errors. A high-power system for RC models can be very dangerous, so please read this manual carefully. HOBBYWING North America has no control over the correct use, installation, application, or maintenance of our products; no liability shall be assumed nor accepted for any damages, losses, or costs resulting from the use of the product. Any claims arising from the operating, failure, or malfunctioning, etc., will be denied. We assume no liability for personal injury, consequential damages resulting from our product or our workmanship. As far as is legally permitted, the obligation to compensation is limited to the invoice amount of the affected product. For more information, please contact our North America Online store HOBBYWINGDirect.com.
