1. Introduction
This manual provides essential information for the safe and efficient operation, setup, and maintenance of your Hobbywing 12L Brushless Water Pump. This high-performance peristaltic pump is designed for demanding applications such as agricultural sprayers and drones, offering precise flow control and robust construction. Please read this manual thoroughly before installation and use.
2. Safety Information
- Always disconnect power before performing any installation, maintenance, or troubleshooting.
- Ensure all electrical connections are secure and properly insulated to prevent short circuits and electric shock.
- Operate the pump within its specified voltage range (14-18S LiPo, 44-81V) to prevent damage.
- Avoid direct contact with moving parts during operation.
- Do not immerse the pump in water beyond its IP66 rating. While water-resistant, it is not designed for continuous submersion.
- Use appropriate personal protective equipment (PPE) when handling chemicals or operating the pump in hazardous environments.
- Keep out of reach of children.
3. Product Overview
The Hobbywing 12L Brushless Water Pump is a compact and powerful unit featuring a brushless motor for efficiency and longevity. It supports both CAN and PWM control for flexible integration into various systems. Its peristaltic design ensures consistent flow and prevents fluid contamination of internal components.
Key Features:
- Brushless Motor: For high efficiency and extended lifespan.
- Dual Control Modes: Supports CAN and PWM for versatile integration.
- High Flow Rate: Up to 12L/min (2 channels, 6L/min each).
- Wide Voltage Range: Compatible with 14-18S LiPo batteries (44-81V).
- IP66 Protection: Resistant to dust and powerful water jets.
- Peristaltic Design: Ensures precise dosing and prevents fluid contact with pump mechanics.
Components:
The pump unit includes the main pump body, integrated brushless motor, control electronics, and connection cables for power and signal. Mounting brackets are typically integrated into the design for easy installation.
4. Specifications
| Parameter | Value |
|---|---|
| Using Voltage | 14-18S LiPo (44-81V) |
| Rated Power | 150W |
| Maximum Opening Flow | 12L/min (2 channels, 6L/min each) |
| Minimum Opening Flow | 0.6L/min |
| Channels | 2 |
| Protection Grade | IP66 |
| Weight | 778g |
| Size (excluding wire) | 151 x 75 x 124mm |
| Inner Diameter of Inlet Water Pipe | 8mm |
| Inner Diameter of Outlet Water Pipe | 8mm |
| Fixed PWM Throttle Travel | 1050-1950μs |
| PWM Level | 3.3V/5V |
5. Setup
5.1 Mounting
Securely mount the pump to a stable surface on your agricultural sprayer or drone using appropriate fasteners. Ensure the mounting location allows for proper hose routing and access for maintenance. The pump should be mounted in an orientation that minimizes strain on the water pipes and electrical connections.
5.2 Water Pipe Connections
- Connect the inlet water pipe (8mm inner diameter) from your fluid reservoir to the designated inlet port(s) on the pump.
- Connect the outlet water pipe(s) (8mm inner diameter) from the pump to your spray nozzles or distribution system.
- Ensure all pipe connections are tight and leak-free. Use hose clamps if necessary to prevent accidental disconnections or leaks during operation.
5.3 Electrical Connections
- Power Connection: Connect the main power cable of the pump to a compatible 14-18S LiPo battery or power source. Observe correct polarity (red for positive, black for negative).
- Control Signal Connection:
- PWM Control: Connect the PWM signal wire to your flight controller or control unit. Ensure the PWM level is 3.3V or 5V and the throttle travel is within 1050-1950μs.
- CAN Control: If using CAN, connect the CAN bus wires (CAN-H and CAN-L) to your CAN-enabled flight controller or control system. Refer to your flight controller's manual for specific CAN bus setup.
- Double-check all electrical connections before applying power.
6. Operating Instructions
6.1 Pre-Operation Check
- Verify all connections (power, signal, water pipes) are secure.
- Ensure the fluid reservoir contains sufficient liquid.
- Check for any obstructions in the water pipes or nozzles.
6.2 Starting the Pump
Once all connections are verified and the system is ready, apply power to the pump. The pump will typically enter a standby mode. Use your flight controller or control unit to send the appropriate PWM or CAN command to start the pump.
6.3 Adjusting Flow Rate
The flow rate can be adjusted via the PWM signal (throttle travel 1050-1950μs) or CAN commands from your control system. Experiment with different signal values to achieve the desired flow for your application.
6.4 Stopping the Pump
Send a stop command via PWM or CAN from your control unit. Disconnect the main power source after use.
7. Maintenance
7.1 Regular Cleaning
- After each use, especially when spraying chemicals, flush the pump and lines with clean water to prevent residue buildup and corrosion.
- Wipe down the exterior of the pump with a damp cloth. Do not use harsh chemicals or solvents.
7.2 Inspection
- Periodically inspect water pipes for cracks, kinks, or blockages.
- Check electrical cables for any signs of wear, fraying, or damage.
- Ensure mounting screws remain tight.
7.3 Storage
Store the pump in a clean, dry environment away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the pump and lines are thoroughly cleaned and dry.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power; incorrect voltage; faulty signal connection; pump damaged. | Check power supply and connections; verify voltage is within 14-18S; inspect signal wiring; contact support if pump is damaged. |
| No fluid flow | Empty reservoir; clogged pipes/nozzles; air in the system; pump not primed. | Refill reservoir; clear obstructions; ensure system is free of air; prime the pump if necessary. |
| Inconsistent flow | Partial blockage; fluctuating power/signal; worn peristaltic tubing. | Check for partial blockages; ensure stable power and control signal; inspect peristaltic tubing for wear. |
| Excessive noise/vibration | Loose mounting; foreign object in pump; motor issue. | Tighten mounting screws; inspect pump for foreign objects (after disconnecting power); contact support if motor issue suspected. |
9. User Tips
- For optimal performance and longevity, always use clean fluids and regularly flush the system.
- When integrating with a flight controller, ensure the PWM or CAN settings are correctly configured to match the pump's requirements.
- Consider using a filter on the inlet line to prevent debris from entering the pump and clogging nozzles.
- Regularly check the condition of the peristaltic tubing, as it is a wear item and may need replacement over time depending on usage and fluid type.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for warranty claims.
