1. Introduction
The RYOBI 40V VAC Attack Cordless Leaf Vacuum/Mulcher (Model RY40405BTL) is a powerful and efficient tool designed for effective yard clean-up. This cordless unit operates on a 40V battery system (battery and charger sold separately), offering freedom of movement without the constraints of power cords. It functions as both a leaf vacuum and a mulcher, significantly reducing the volume of collected debris for easier disposal or composting.

Image: RYOBI 40V VAC Attack Cordless Leaf Vacuum/Mulcher main unit.
2. Safety Instructions
Always prioritize safety when operating power tools. Read and understand all instructions before use. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
- Wear Personal Protective Equipment (PPE): Always wear eye protection (safety glasses or goggles), hearing protection, and heavy-duty gloves. Long pants and sturdy footwear are also recommended.
- Keep Work Area Clear: Ensure the area is free of bystanders, children, and pets. Remove any objects that could be thrown or entangled in the tool.
- Inspect Tool Before Use: Check for loose parts, damage, or any conditions that may affect safe operation. Do not use if damaged.
- Battery Safety: Use only RYOBI 40V batteries and chargers. Do not expose batteries to water, fire, or extreme temperatures.
- Proper Handling: Hold the tool firmly with both hands. Do not overreach. Maintain proper footing and balance at all times.
- Avoid Wet Conditions: Do not operate the tool in wet conditions or rain.
3. Package Contents
Upon opening the package, verify that all items are present and undamaged:
- RYOBI 40V VAC Attack Leaf Vacuum/Mulcher Unit
- Vacuum Tube
- Collection Bag
- Operator's Manual
Note: The 40V battery and charger are sold separately and are not included with this "Tool Only" model.
4. Assembly and Setup
Follow these steps to assemble your RYOBI 40V VAC Attack Leaf Vacuum/Mulcher:
- Attach the Vacuum Tube: Align the vacuum tube with the opening on the main unit and push it firmly until it clicks into place. Ensure it is securely fastened.
- Secure the Collection Bag: Attach the collection bag to the discharge port of the main unit. Ensure the two clips are properly hooked and the bag is fully zipped or sealed to prevent debris from escaping.
- Insert the Battery: Insert a fully charged RYOBI 40V battery (sold separately) into the battery compartment until it locks securely.
5. Operating Instructions
Operating the RYOBI 40V VAC Attack is straightforward. Always ensure the battery is fully charged before beginning your task.
5.1 Powering On/Off
To turn the unit ON, press and hold the power button. To turn it OFF, release the power button.
5.2 Speed Settings
The tool features multiple speed settings (Low, Medium, High) to adapt to different tasks and surfaces:
- Low Speed: Ideal for light debris or delicate areas where minimal suction is required.
- Medium Speed: Recommended for general leaf vacuuming on hard surfaces like gravel, as it provides sufficient suction without disturbing the gravel.
- High Speed: Best for dense leaf piles on grass or when maximum suction and mulching power are needed.
5.3 Vacuuming Technique
For optimal performance and to prevent clogging:
- Walk slowly and steadily, allowing the vacuum to draw in leaves naturally.
- Avoid pushing the nozzle directly into very large, thick piles of leaves, as this can cause blockages. Instead, work on the edges of piles or break them into smaller sections.
- Utilize the integrated wheels to glide the nozzle across surfaces, reducing user fatigue and improving control.
- When vacuuming on gravel, use the medium speed setting to effectively pick up leaves without suctioning up stones.
5.4 Mulching Function
The RYOBI 40V VAC Attack automatically mulches leaves as they are vacuumed, reducing their volume significantly. This allows for more debris to be collected in the bag before emptying and creates finely shredded material suitable for composting or garden beds.
5.5 Emptying the Collection Bag
When the collection bag is full:
- Turn off the tool and remove the battery for safety.
- Unhook the two clips securing the collection bag to the main unit.
- Carefully remove the bag.
- Unzip the bag and empty the mulched contents into a compost bin or yard waste container.
- Reattach the bag and secure the clips before resuming operation.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your tool.
- Cleaning: After each use, remove the battery and clean the exterior of the tool with a damp cloth. Regularly inspect and clear any debris from the vacuum tube, impeller, and collection bag. Ensure the collection bag is clean and free of tears.
- Storage: Store the tool in a dry, well-ventilated area, out of reach of children. Ensure the battery is removed before storage.
- Battery Care: Follow the specific charging and storage instructions provided with your RYOBI 40V battery and charger.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Reduced suction or tool not picking up leaves effectively. | Clogged vacuum tube or impeller. Overfilled collection bag. | Turn off the tool and remove the battery. Inspect the vacuum tube and impeller for blockages and clear any debris. Empty the collection bag if full. |
| Tool does not start. | Battery not charged or improperly inserted. Power switch not engaged. | Ensure the 40V battery is fully charged and correctly inserted into the tool. Verify the power switch is in the ON position. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | RYOBI |
| Model Number | RY40405BTL |
| Voltage | 40 Volts |
| Power Source | Battery Powered |
| Form Factor | Handheld |
| Special Feature | Wheels |
| Item Weight | 13.72 pounds |
| Package Dimensions | 22 x 16 x 13 inches |
| UPC | 046396022899 |
9. 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 directly. Keep your purchase receipt as proof of purchase for warranty claims.





