1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Hobbywing 9L 10A 14S-18S Brushless Centrifugal Nozzle. This system is designed for DIY agricultural spray applications, offering efficient and precise liquid atomization for various uses, including crop spraying and pest control.
Please read this manual thoroughly before using the product to ensure safe and optimal performance.
2. Safety Information
- Always ensure the power supply is disconnected before performing any installation, maintenance, or cleaning.
- Operate the spray system within the specified voltage range (12S-18S DC24-81V) to prevent damage.
- Use appropriate personal protective equipment (PPE) when handling agricultural chemicals.
- Ensure all connections are secure and waterproof, especially for outdoor and agricultural use.
- Keep the nozzle clear of obstructions during operation.
- Do not attempt to modify the product in any way not described in this manual.
3. Package Contents
Verify that all items are present in your package:
- Hobbywing 9L Brushless Centrifugal Nozzle Assembly
- Integrated Power and Signal Cable (71cm length)
- Mounting Screws and Nuts
- O-rings for sealing
4. Specifications
4.1 System Parameters (Model: COMBO-SPRAY-9L-18S)
| Item | Parameter |
|---|---|
| Model | COMBO-SPRAY-9L-18S |
| Configuration | SPR 4517 380KV + HW 5116 |
| Dimensions (L*W*H) | 75mm * 278.3mm * 97.8mm |
| Weight | 495g |
| Compatible Voltage | 12S-18S (DC24-81V) Li-Po |
| Rated Flow | 5 L/min |
| Maximum Flow | 9 L/min |
| Continuous Current | 7A |
| Instantaneous Current | 10A |
| MAX Power | 500W (54V) |
| Rated Power | 350W |
| Control Mode | PWM/CAN |
| Atomized Particle Size | 35-500μm |
| Spray Amplitude (single nozzle) | 4-12m |
| Water Inlet Outer Diameter | 10.8mm (recommended to use soft tube with inner diameter < 9mm) |
| Power Cord Length | 71cm |
4.2 ESC Parameters
| Item | Parameter |
|---|---|
| ESC Model | HW5116_YT1_V1.2 |
| Throttle Travel | 1050-1950 µs |
| Communication Method | CAN |
| Control Mode | PWM/CAN |
| Instantaneous Protection Current | 100A |
| Motor Size | D44 |
| Color | Blue |
4.3 Environmental Adaptability
| Item | Parameter |
|---|---|
| NSS Salt Spray Test | 72 hours |
| Protection Level | IPX6 (Resistant to high-pressure water jets) |
| Operating Temperature Range | 0°C to 50°C |
| Operating Humidity Range | 5% to 95% RH |
| Storage Temperature Range | -10°C to 50°C |
| Storage Humidity Range | ≤85% RH |
5. Setup and Installation
5.1 Mounting the Nozzle
- Identify the mounting point on your agricultural drone or spray system. The nozzle features a secure mounting mechanism.
- Align the nozzle's mounting bracket with the drone arm or designated attachment area.
- Use the provided screws and nuts to firmly attach the nozzle. Ensure it is stable and does not wobble.
- Utilize the 'LOCK/UNLOCK PRESS' mechanism (refer to Figure 4) to secure the nozzle in place after mounting. Press to lock, and rotate to unlock for removal.
5.2 Water Inlet Connection
- Connect a soft tube to the water inlet of the nozzle. The water inlet has an outer diameter of 10.8mm.
- It is recommended to use a soft tube with an inner diameter of less than 9mm for a secure fit and optimal flow.
- Ensure the connection is tight and leak-free to prevent loss of liquid and potential damage.
5.3 Electrical Connections
The nozzle uses an integrated power and signal cable. Refer to the pin definition table below for proper wiring:
| Pin | Color | Function |
|---|---|---|
| 1 | Red | Power + |
| 2 | Purple | Oil Pump IS |
| 3 | Green | CAN-H |
| 4 | Blue | CAN-L |
| 5 | Black | GND |
Ensure correct polarity and secure connections to your drone's flight controller or power distribution board. The system supports PWM/CAN control modes.
6. Operation
6.1 Pre-Operation Checklist
- Verify that the nozzle is securely mounted.
- Check all water and electrical connections for tightness and integrity.
- Ensure the liquid tank is filled with the desired spray solution.
- Confirm the power source (12S-18S Li-Po battery) is adequately charged and connected.
6.2 Starting the Spray System
- Power on your drone and flight control system.
- Activate the spray system via your drone's remote control or ground station software, according to your flight controller's configuration for PWM or CAN control.
- Monitor the spray pattern and flow rate. The system provides a rated flow of 5 L/min and a maximum flow of 9 L/min, with an atomized particle size of 35-500μm.
- Adjust spray parameters as needed for optimal coverage and efficiency.
7. Maintenance
Regular maintenance ensures the longevity and performance of your Hobbywing centrifugal nozzle.
- Cleaning: After each use, especially when spraying chemicals, flush the nozzle with clean water to prevent clogging and corrosion.
- Inspection: Periodically inspect the nozzle for any signs of wear, damage, or blockages. Check the spray disc (Figure 2) for debris.
- Seals: Ensure all O-rings and seals are intact and properly seated to maintain the IPX6 protection level. Replace if worn or damaged.
- Storage: Store the nozzle in a clean, dry place away from direct sunlight and extreme temperatures.
8. Troubleshooting
8.1 Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| No spray or weak spray | Clogged nozzle, insufficient water supply, power issue | Clean the nozzle, check water pump and tank, verify power connections. |
| Inconsistent spray pattern | Partial clog, damaged spray disc | Clean the nozzle thoroughly, inspect and replace spray disc if damaged. |
| No power to the nozzle | Loose electrical connection, faulty ESC/motor, battery issue | Check all wiring (refer to Section 5.3), test battery voltage, consult Hobbywing support if ESC/motor is suspected. |
| Water leakage | Loose hose connection, damaged O-ring/seal | Tighten hose clamps, inspect and replace O-rings/seals. |
9. User Tips
- Compatibility: Always verify the compatibility of this nozzle system with your specific drone model (e.g., Boying Paladin 4) and flight controller before purchase and installation.
- Battery Voltage: The system is designed to operate with 12S to 18S Li-Po batteries. Ensure your battery setup falls within this range for proper function.
- Water Tube Size: For the water inlet, using a soft tube with an inner diameter slightly smaller than 9mm (e.g., 8mm) can provide a more secure and leak-proof connection to the 10.8mm outer diameter inlet.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized Hobbywing dealer or visit the official Hobbywing website. Keep your purchase receipt as proof of purchase for warranty claims.
