Введение
This manual provides detailed instructions for the installation, operation, and maintenance of your Stemedu BLS-HV70MG 70KG Brushless Digital RC Servo. This high-performance servo is designed for 1:8 and 1:10 scale RC cars, offering high torque, speed, and durability. It features a brushless motor, all-metal gears, and an IP67 waterproof rating, ensuring reliable operation in various conditions.
Характеристики продукта
- 70KG Brushless Servo: Высокий рабочий объемtage от 4.8 В до 8.4 В постоянного тока.
- Высокоскоростной: No-load speed of 0.12sec/60° at 8.4V.
- Высокий крутящий момент: Stall torque of 71 Kg-cm at 8.4V.
- Водонепроницаемость: IP67 rated for reliable use in wet conditions.
- Цельнометаллическая конструкция: Full aluminum case, stainless steel metal gears for precision, reduced noise, and high operating accuracy.
- Угол управления: Controllable angle range from 0 to 180 degrees.
Что в коробке?
В комплект входят следующие компоненты:
- 1 x Stemedu BLS-HV70MG 70KG Brushless Digital RC Servo
- Multiple plastic servo arms (various shapes)
- 1 x 25T metal servo horn
- Mounting screws and brass inserts

Image: The BLS-HV70MG servo shown with its complete set of accessories, including various plastic servo arms, a red metal 25T servo horn, mounting screws, and brass inserts.
Инструкции по установке
- Mounting the Servo: Securely mount the servo into your RC vehicle's servo tray using the provided screws and brass inserts. Ensure the servo is firmly seated to prevent movement during operation.
- Connecting to Receiver/BEC: Connect the servo's 3-pin connector to the appropriate channel on your RC receiver. If using a separate Battery Eliminator Circuit (BEC), ensure it is properly connected and configured to supply the recommended voltage range (4.8V-8.4V) to the servo.
- Attaching Servo Horn: With the RC system powered on and the servo centered (usually by turning on the transmitter and receiver first), attach the desired servo horn to the servo output shaft. Ensure the horn is aligned correctly for your application. The included 25T metal servo horn is recommended for high-stress applications.
- Первоначальная калибровка: Before full operation, perform a basic calibration to ensure the servo responds correctly to your transmitter inputs. Check for full range of motion and proper centering.

Изображение: Подробный view of the Stemedu BLS-HV70MG servo, showing its compact design and wiring for connection.
Инструкция по эксплуатации
The BLS-HV70MG servo operates with a control angle of 180 degrees, responding to standard PWM signals. The pulse width range for control is typically from 500 to 2500 microseconds, with 1500 microseconds representing the neutral position.
- Томtage Диапазон: This servo is designed for high voltage (HV) operation, accepting inputs from 4.8V to 8.4V. Operating within this range ensures optimal performance and longevity.
- Speed and Torque: The servo's speed and torque vary with the input voltagе. Высший объемtages (e.g., 8.4V) will result in faster speeds (0.12sec/60°) and higher torque (71 Kg-cm).
- Контроль: Use your RC transmitter to send control signals to the servo. Adjust the trim and sub-trim settings on your transmitter for precise centering and endpoint adjustments.

Image: A visual representation of the servo's 180-degree control angle, indicating the pulse width modulation (PWM) values corresponding to different positions.
Video: An official product video demonstrating the features and performance of the Stemedu 70KG Brushless Servo, including its waterproof capabilities and high-speed operation.
Обслуживание
Proper maintenance ensures the longevity and optimal performance of your servo.
- Гидроизоляция: The servo has an IP67 waterproof rating. While it can withstand splashes and temporary immersion, avoid prolonged submersion or high-pressure water jets. After exposure to water, allow the servo to dry completely before storage.
- Проверка передач: Periodically inspect the metal gears for any signs of wear, damage, or debris. Clean any accumulated dirt or grime.
- Уборка: Use a soft, dry cloth to clean the exterior of the servo. Avoid using harsh chemicals or solvents.
- Хранилище: Store the servo in a dry, cool place away from direct sunlight and extreme temperatures.

Image: The BLS-HV70MG servo is shown amidst splashing water, illustrating its IP67 waterproof design, which protects it from dust and water ingress.
Поиск неисправностей
- Сервопривод не отвечает:
- Check all connections between the servo, receiver, and power source.
- Ensure the receiver and transmitter are properly bound and powered on.
- Проверьте уровень напряжения питания.tage is within the servo's operating range (4.8V-8.4V).
- Inconsistent Centering:
- Adjust the sub-trim on your transmitter.
- Check for any mechanical binding or obstruction in the linkage.
- Ensure the servo horn is securely attached and not stripped.
- Excessive Noise or Grinding:
- Inspect the gears for damage or foreign objects.
- Ensure the servo is not under excessive load or binding.
- Перегрев:
- Reduce the load on the servo if possible.
- Ensure adequate ventilation around the servo.
- Проверьте входной объемtagе не слишком высокое.
Технические характеристики
| Элемент | Спецификация |
|---|---|
| Командный сигнал | Pulse Width Modification (PWM) |
| AmpТип лифтера | Цифровой контроллер |
| Диапазон ширины импульса | 500-2500 µsec |
| Нейтральная позиция | 1500 мкс |
| Running Degree | 180±3° (when 500-2500 µsec) |
| Dead Band Width | 3 мкс |
| Направление вращения | Counterclockwise (when 1000-2000 µsec) |
| Работа Томtage | 4.8V ~ 8.4V |
| No-load Speed (4.8V) | 0.21 сек/60° |
| No-load Speed (6.0V) | 0.17 сек/60° |
| No-load Speed (7.4V) | 0.14 сек/60° |
| No-load Speed (8.4V) | 0.12 сек/60° |
| Running Current (4.8V-8.4V) | 500мА-1200мА |
| Peak Stall Torque (4.8V) | 58 кг-см |
| Peak Stall Torque (6.0V) | 62 кг-см |
| Peak Stall Torque (7.4V) | 68 кг-см |
| Peak Stall Torque (8.4V) | 71 кг-см |
| Stall Current (4.8V-8.4V) | 8000мА-13000мА |
| Размеры продукта | 1.57 x 0.79 x 1.57 дюйма (40 x 20 x 40 мм) |
| Вес товара | 3.2 унции (92.2 г) |
| Рейтинг водонепроницаемости | IP67 |

Image: A table presenting the comprehensive specifications of the BLS-HV70MG servo, detailing its performance characteristics under different voltagе условия.

Image: A technical diagram illustrating the exact dimensions of the BLS-HV70MG servo in millimeters, useful for fitment and installation.

Image: The BLS-HV70MG servo on a digital scale, showing its weight of 92.2 grams, indicating its robust yet lightweight construction.
Гарантия и поддержка
Stemedu products are manufactured to high-quality standards. For any issues or questions regarding your BLS-HV70MG servo, please refer to the seller's return policy or contact Stemedu customer support through the platform where the product was purchased. Please retain your proof of purchase for warranty claims.