Introduction
Thank you for choosing the Kobalt Gen4 40-Volt Brushless Handheld Cordless Electric Leaf Blower. This manual provides essential information for the safe operation, maintenance, and troubleshooting of your new tool. Please read this manual thoroughly before initial use and retain it for future reference.

An image showing the Kobalt Gen4 40-Volt Brushless Handheld Cordless Electric Leaf Blower from a three-quarter front view, highlighting its blue and black design and long nozzle.
Important Safety Information
Always follow basic safety precautions when using electric tools to reduce the risk of fire, electric shock, and personal injury.
- Read all instructions: Familiarize yourself with the controls and proper use of the leaf blower.
- Wear appropriate personal protective equipment (PPE): Always wear safety glasses or goggles, hearing protection, and long pants/sleeves.
- Keep area clear: Ensure the work area is free of debris and bystanders, especially children and pets.
- Avoid wet conditions: Do not operate the leaf blower in rain or wet conditions.
- Use the right tool: Do not use the leaf blower for any purpose other than that for which it is intended.
- Battery Safety: This unit is sold as "Tool Only" and does not include a battery or charger. Use only specified 40-Volt Kobalt batteries and chargers. Refer to your battery and charger manuals for their specific safety instructions.
Setup
- Unpacking: Carefully remove all components from the packaging. Inspect for any damage.
- Nozzle Assembly:
Align the blower tube with the main housing. Push the tube onto the housing until it clicks securely into place. Ensure it is firmly attached to prevent detachment during operation.
- Battery Installation:
Ensure the battery is fully charged before use. Slide the 40-Volt battery pack into the battery port on the blower until it locks into place. A click indicates it is properly seated. To remove, press the battery release button and slide the battery out.
Note: This product is sold as "Tool Only" and does not include a battery or charger. Compatible Kobalt 40-Volt batteries and chargers are required for operation.
Operating Instructions
- Starting the Blower:
With a charged battery installed, press the ON/OFF trigger switch located on the handle to start the blower. The blower will start at a low speed.
- Adjusting Speed:
The blower features a variable speed trigger. Squeeze the trigger further to increase airflow. For maximum power, engage the Turbo button (if equipped) for a temporary boost in air velocity (up to 120 MPH).
- Proper Blowing Technique:
Hold the blower firmly with both hands. Sweep from side to side, moving debris in front of you. For stubborn debris, use the concentrated airflow by getting closer to the ground. Avoid blowing directly into piles of dust or debris to prevent scattering.
- Stopping the Blower:
Release the ON/OFF trigger switch to turn off the blower.
Maintenance
- Cleaning: After each use, wipe down the exterior of the blower with a clean, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure air vents are clear of debris.
- Storage: Store the leaf blower in a dry, well-ventilated area, out of reach of children. Remove the battery pack before storing for extended periods.
- Battery Care: Store batteries in a cool, dry place. Do not store batteries in a discharged state. Charge them periodically if not used for a long time.
- Inspection: Periodically inspect the blower for loose fasteners, damaged parts, or worn components. Do not operate if any damage is found. Contact customer service for repairs.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blower does not start. | Battery not installed correctly. Battery is discharged. | Ensure battery is fully seated. Charge the battery. |
| Reduced airflow. | Nozzle or air intake blocked. Battery low. | Clear any obstructions. Recharge or replace battery. |
| Blower stops during operation. | Battery overheated or discharged. Overload protection activated. | Allow battery to cool down and recharge. Reduce load on the blower. |
Specifications
| Feature | Detail |
|---|---|
| Brand | SPPRANDOM (for Kobalt) |
| Model Number | KLB 1040B-03 |
| Power Source | Battery Powered |
| Voltage | 40 Volts |
| Maximum Speed | 120 Miles per Hour (MPH) |
| Airflow (CFM) | 520 CFM |
| Motor Type | Brushless |
| Form Factor | Handheld |
| Weight | 6.34 pounds |
| Dimensions (L x W x H) | 19.7" x 12" x 8.7" |
| Color | Blue, Black |
| UPC | 084182101571 |
Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official Kobalt website. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance, you may contact SPPRANDOM customer service through their official channels.