Introduction
This manual provides essential information for the safe and efficient operation of your RYOBI 40-Volt Lithium-Ion Brushless Jet Fan Blower. This Whisper Series blower is designed to deliver powerful airflow for clearing leaves and debris, featuring an intelligent brushless motor and a turbo button for customized output. Please read and understand all instructions before use.

Image: RYOBI 40-Volt Brushless Cordless Jet Fan Leaf Blower, showing the full assembly with battery and nozzle.
Safety Information
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Keep this manual for future reference.
- Read all instructions: Familiarize yourself with the controls and proper use of the blower.
- Wear appropriate personal protective equipment (PPE): Always wear eye protection, hearing protection, long pants, and sturdy footwear.
- Keep bystanders away: Ensure children, pets, and other people are at a safe distance from the operating area.
- Inspect the work area: Remove any objects that could be thrown by the air stream.
- Do not operate in wet conditions: Avoid using the blower in rain or damp environments to prevent electric shock.
- Use the right battery and charger: Only use RYOBI 40-Volt batteries and chargers compatible with this tool.
- Store properly: When not in use, store the blower in a dry, secure place out of reach of children.
Package Contents
The RYOBI 40-Volt Brushless Cordless Jet Fan Leaf Blower GEN4 is sold as a tool-only unit. The package typically includes:
- RYOBI 40-Volt Brushless Cordless Jet Fan Leaf Blower (Tool-Only)
- Blower Nozzle
- Operator's Manual
Note: Batteries and chargers are sold separately and are not included with this tool-only purchase.
Setup
1. Attaching the Blower Nozzle
- Align the grooves on the blower nozzle with the tabs on the blower housing.
- Push the nozzle onto the housing and twist clockwise until it locks securely into place.

Image: The RYOBI 40-Volt Leaf Blower with its nozzle securely attached, ready for use.
2. Installing the Battery Pack
- Ensure the battery pack is fully charged.
- Align the ribs on the battery pack with the grooves in the blower's battery port.
- Slide the battery pack into the blower until it clicks into place. Ensure it is firmly seated.
To remove the battery, press the battery release button and slide the battery out.
Video: A user demonstrates how to install and remove the 40V battery pack from the RYOBI leaf blower, highlighting the battery indicator lights.
Operating Instructions
1. Starting and Stopping the Blower
- To start: Press and hold the trigger switch.
- To stop: Release the trigger switch.
2. Variable Speed Operation
The blower features a variable speed trigger, allowing you to control the airflow intensity. Press the trigger lightly for lower speed and more firmly for higher speed.
3. Using the Turbo Button
For maximum power and to clear heavier debris, press the TURBO button located on the handle while operating the blower. This will provide an immediate burst of increased airflow.
Video: A user demonstrates the regular and turbo modes of the RYOBI 40V blower, showing how to activate the turbo boost for increased power.

Image: A person using the RYOBI 40-Volt Leaf Blower to clear a large pile of dry leaves from a grassy area.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your blower.
- Cleaning: Keep the air vents clean and free of debris. Use a soft brush or cloth to remove dirt. Do not use water or solvents.
- Battery Care: Always store batteries in a cool, dry place. Do not store them in direct sunlight or where temperatures exceed 120°F (49°C).
- Storage: When storing the blower for extended periods, remove the battery pack. Store the blower in a dry, well-ventilated area.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blower does not start | Battery not installed correctly or discharged. | Ensure battery is fully inserted and charged. |
| Reduced airflow | Nozzle partially blocked or battery low. | Clear any obstructions from the nozzle. Recharge or replace battery. |
| Blower stops during operation | Overheating or battery discharged. | Allow the tool to cool down. Recharge battery. |
Specifications
| Feature | Detail |
|---|---|
| Brand | RYOBI |
| Model | GEN4 (B083N9TLMZ) |
| Power Source | Battery Powered (40-Volt Lithium-Ion) |
| Motor Type | Brushless |
| Air Flow Capacity | Up to 550 CFM |
| Air Speed | Up to 125 MPH |
| Noise Level | 59 Decibels (Whisper Series) |
| Item Weight | 8.98 pounds (without battery) |
| Special Features | Adjustable Speed, Compact Design, Lightweight, Portable, Turbo Button |
Warranty and Support
For warranty information, technical support, or to purchase replacement parts, please refer to the official RYOBI website or contact their customer service. Keep your purchase receipt as proof of purchase for warranty claims.
You may also find additional resources and FAQs on the RYOBI Tools website.





