1. Product Overview
This Greenworks 40V combo kit provides a comprehensive solution for yard maintenance, featuring a 16-inch brushless cordless push lawn mower, a 350 CFM blower, and a 13-inch string trimmer. Designed for efficiency and ease of use, this kit includes a 4.0Ah battery, a 2.0Ah battery, and a charger, offering a powerful and eco-friendly alternative to gas-powered tools.

Figure 1: Greenworks 40V 3-Piece Combo Kit. This image displays all components included in the kit: the 16-inch lawn mower, the handheld blower, the string trimmer, two 40V lithium-ion batteries (4.0Ah and 2.0Ah), and the battery charger.
2. Setup and Assembly
2.1. Battery Charging
Before initial use, fully charge both the 4.0Ah and 2.0Ah 40V lithium-ion batteries. The 4.0Ah battery typically charges in 120 minutes. Ensure the charger is connected to a standard power outlet and the battery is securely inserted into the charger.

Figure 2: The 4.0Ah and 2.0Ah 40V batteries along with their dedicated charger. The charger features indicator lights to show charging status.
2.2. Lawn Mower Assembly
- Handle Assembly: Unfold the mower handles and secure them in place using the quick-release clamps or knobs provided. Ensure the handles are fully extended and locked for safe operation.
- Grass Collection Bag Attachment: Assemble the grass collection bag according to the instructions. Attach the bag to the rear discharge opening of the mower.

Figure 3: Detailed view of the Greenworks 16-inch push mower, highlighting key features such as the easy push button start, collapsible handles, 2-in-1 rear bagger or mulch system, integrated transport handle, powerful brushless motor, 5-position height adjustment, and 16-inch cutting deck.
2.3. String Trimmer Assembly
- Auxiliary Handle: Attach the adjustable auxiliary handle to the trimmer shaft for comfortable operation.
- Guard Installation: Securely install the safety guard over the trimmer head to protect against debris.
- Line Installation: The trimmer comes with a pre-installed 0.065-inch single auto-feed line. If replacement is needed, refer to the maintenance section.

Figure 4: The Greenworks 13-inch string trimmer, illustrating its ergonomic overmold grip, variable speed trigger, adjustable auxiliary handle, aluminum telescopic shaft, 7-position pivoting head, 11-inch or 13-inch cutting swath, flower guard, and auto-feed head with 0.065-inch single line.
2.4. Blower Assembly
Attach the tapered nozzle to the blower housing. Ensure it clicks securely into place. The blower is designed for lightweight and easy handling.

Figure 5: The Greenworks 350 CFM blower, illustrating its 2-speed control, lightweight design, 350 CFM and 100 MPH air output, and tapered nozzle for concentrated airflow.
3. Operating Instructions
3.1. General Operation
Always ensure the battery is fully charged before use. Insert the charged 40V battery into the designated battery compartment of the tool until it clicks into place. To remove, press the battery release button and pull the battery out.
Video 1: Greenworks 40V Family Overview. This video provides a general overview of the Greenworks 40V system, demonstrating the ease of battery insertion and the versatility of the tools within the family.
3.2. Operating the Lawn Mower
- Starting: Press and hold the safety button, then pull the bail switch towards the handle. The mower will start instantly. Release the safety button once the mower is running.
- Height Adjustment: Use the single lever 5-position height adjustment to set the cutting height between 1-1/4 inches and 3-3/8 inches. Adjust based on grass type and desired lawn appearance.
- 2-in-1 Functionality: The mower supports both mulching and rear bagging. For mulching, ensure the grass collection bag is removed and the mulching plug is inserted. For bagging, attach the grass collection bag.

Figure 6: A close-up view of the mower's 5-position single lever height adjustment mechanism, allowing for quick and easy changes to cutting height.

Figure 7: Demonstration of the mower's 2-in-1 system, showing its configuration for mulching (left) and for rear bagging (right).
3.3. Operating the Blower
- Starting: Insert a charged battery. Press the power button.
- Speed Control: Utilize the two-speed switch (High/Low) to adjust airflow for different tasks. The blower delivers up to 350 CFM and 100 MPH.

Figure 8: A user demonstrating the effectiveness of the Greenworks blower in clearing leaves and debris, highlighting its 350 CFM and 100 MPH power.
3.4. Operating the String Trimmer
- Starting: Insert a charged battery. Press the push button start.
- Auto-Feed Head: The trimmer features a 0.065-inch single line auto-feed head, which automatically extends the line as needed during operation.
- Trimmer to Edger Conversion: The trimmer head rotates 90 degrees with the push of a button, allowing for easy conversion from trimming to edging for multi-angle cutting.

Figure 9: A detailed view of the string trimmer's cutting head, showing its 13-inch cutting swath and the auto-feed mechanism for the 0.065-inch line.

Figure 10: The 2-in-1 functionality of the string trimmer, demonstrating its use for trimming (left) and its conversion to an edger (right) for precise lawn edges.
4. Maintenance
4.1. Battery Care and Storage
- Always store batteries in a cool, dry place away from direct sunlight and moisture.
- For long-term storage, ensure batteries are partially charged (around 50%) to prolong their lifespan.
- Avoid storing batteries in extreme temperatures.
4.2. Lawn Mower Maintenance
- Blade Inspection: Regularly inspect the mower blade for sharpness and damage. A dull or damaged blade can lead to uneven cuts and strain the motor. Replace if necessary.
- Cleaning: After each use, remove any grass clippings and debris from the cutting deck and wheels. Ensure the air vents are clear to prevent overheating.
- Storage: The mower features collapsible handles for compact storage. Store in a dry, protected area.
4.3. String Trimmer Maintenance
- Line Replacement: When the trimmer line runs out or becomes too short, replace it with 0.065-inch diameter string trimmer line. Refer to the product manual for specific instructions on spool replacement.
- Cleaning: Keep the trimmer head and guard free of grass and debris.
4.4. Blower Maintenance
- Cleaning: Clear any debris from the air intake and nozzle.
- Storage: Store the blower in a dry place.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start. | Battery not charged or improperly inserted. Safety switch/bail not engaged. | Ensure battery is fully charged and securely inserted. Engage safety switch/bail correctly. |
| Mower cuts unevenly or struggles. | Dull or damaged blade. Cutting height too low for grass conditions. Excessive grass buildup. | Inspect and replace blade if necessary. Adjust cutting height. Clean cutting deck. |
| String trimmer line does not feed. | Line tangled or empty spool. Debris in auto-feed mechanism. | Inspect and untangle line, or replace spool. Clear any debris from the head. |
| Blower has low air output. | Nozzle partially blocked. Battery low. | Clear any obstructions from the nozzle. Recharge battery. |
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Greenworks |
| Model Number | LMF417 |
| Power Source | Battery Powered (40V Lithium-Ion) |
| Lawn Mower Cutting Width | 16 Inches |
| Lawn Mower Height Adjustment | 5 Positions (1-1/4" to 3-3/8") |
| Blower Airflow | 350 CFM / 100 MPH |
| String Trimmer Cutting Swath | 13 Inches |
| String Trimmer Line Diameter | 0.065 Inches (Auto-Feed) |
| Included Batteries | 1 x 4.0Ah, 1 x 2.0Ah |
| Approximate Mower Runtime (4.0Ah) | Up to 45 minutes |
| Approximate 4.0Ah Battery Charge Time | 120 minutes |
| Item Weight (Mower) | 45 Pounds |
| Product Dimensions (Mower) | 40"D x 20"W x 15"H |
7. Warranty and Support
This Greenworks 40V combo kit is backed by a 3-year tool warranty and a 3-year battery warranty, covering defects in materials and workmanship under normal use. For warranty claims, technical assistance, or general inquiries, please refer to the contact information provided in your original product packaging or visit the official Greenworks website.
For additional support and resources, you may visit the Greenworks Store on Amazon.
