Introduction and Product Overview
This manual provides instructions for the Greenworks 82V 16-inch Brushless Cordless String Trimmer, Model 82ST151. This tool features a 1.5kW direct drive commercial-grade brushless motor, delivering consistent speeds up to 5700 RPM. It includes a durable magnesium construction and a 1.1-inch diameter shaft for efficient operation. The trimmer is designed for landscaping tasks, offering a zero-emission solution with premium power and ergonomic handling.

Image: The Greenworks 82V 16-inch Brushless Cordless String Trimmer, showing the main unit, 2.5Ah battery, and dual port charger.
Key Features:
- 82V 16" String Trimmer: Offers 40% more power than a 36cc gas string trimmer. Features durable magnesium construction and a 1.1" diameter shaft for improved ergonomics and cutting arc.
- Commercial Grade Brushless Motor: Direct drive motor provides up to 1.5kW of power, maintaining consistent speeds up to 5,700 RPM.
- Extended Runtime: Capable of trimming up to 2.5 miles on a single charge with the included 82V 2.5Ah battery.
- Load N' Go Trimmer Head: Designed to hold up to 34 feet of .095" trimmer line for quick and easy line replacement.
- Variable Speed Trigger: Includes a 2-speed switch for precise control during operation.
- Battery: Comes with an 82V 2.5Ah battery (180 Watt Hours) and a dual port charger.
- Important Note: This product is not compatible with Greenworks 80V products.

Image: An illustration of a powerful brushless motor, emphasizing its efficiency and contribution to longer runtime and higher power.
Safety Information
Always adhere to safety guidelines to prevent injury and damage to the equipment.
- Always wear eye protection and gloves when operating the string trimmer.
- Do not operate the trimmer near flammable materials or liquids.
- Keep hands and feet away from the cutting path and rotating trimmer head.
- Inspect the equipment for any damage or loose parts before each use.
- Ensure the battery is fully charged and properly seated before starting.
- Keep children and bystanders at a safe distance from the operating area.
- Do not modify the trimmer or use non-approved attachments.
Setup and Assembly
Follow these steps to assemble your Greenworks 82V String Trimmer:
- Unpack Components: Carefully remove all parts from the packaging. Ensure all components listed in the packing list are present.
- Attach Guard: Securely attach the debris guard to the trimmer head using the provided hardware. Ensure it is firmly in place to protect against flying debris.
- Adjust Handle: Loosen the knob on the auxiliary handle and slide it to a comfortable operating position. Tighten the knob securely.
- Install Battery: Insert the fully charged 82V battery into the battery compartment until it clicks into place. Ensure it is seated correctly.
- Inspect Line: Verify that the trimmer line is properly installed in the Load N' Go head and extends to the correct length.

Image: Front view of the assembled Greenworks 82V 16-inch String Trimmer, highlighting the handle and trimmer head.
Operating Instructions
Before operating, ensure you have read and understood the safety information.
- Starting the Trimmer:
- Ensure the battery is fully charged and inserted.
- Press and hold the safety lock-out button.
- Squeeze the variable speed trigger to start the motor.
- Adjusting Speed:
- Use the 2-speed switch (High/Low) to select the desired operating speed.
- The variable speed trigger allows for fine-tuning of the cutting speed.
- Trimming Technique:
- Hold the trimmer firmly with both hands.
- Maintain a comfortable stance and keep the trimmer head parallel to the ground.
- Use a sweeping motion, moving from side to side, to cut grass and weeds.
- Avoid hitting hard objects like rocks, fences, or concrete to prevent damage to the line and trimmer head.
- Stopping the Trimmer:
- Release the variable speed trigger.
- The motor will stop. Always remove the battery when not in use or before performing maintenance.

Image: A person demonstrating the use of the Greenworks 82V string trimmer to trim grass along a garden edge.

Image: A close-up view of the Greenworks 82V string trimmer's handle, showing the variable speed trigger and 2-speed switch for control.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your trimmer.
- Cleaning: After each use, clean the trimmer head and guard of any grass clippings or debris. Use a damp cloth; do not use harsh chemicals.
- Trimmer Line Replacement:
- The Load N' Go trimmer head simplifies line replacement.
- Refer to the specific instructions for your Load N' Go head for detailed steps on how to feed new .095" trimmer line.
- Ensure the line is properly wound and secured.
- Battery Care:
- Store the battery in a cool, dry place away from direct sunlight and moisture.
- Charge the battery fully before storage and periodically during long periods of inactivity.
- Do not expose the battery to extreme temperatures.
- Storage: Store the trimmer in a dry, secure location, out of reach of children. Remove the battery before storing.

Image: A close-up view of the Load N' Go trimmer head, illustrating the process of installing or replacing the trimmer line.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not start | Battery not charged or improperly installed. Safety lock-out not engaged. | Ensure battery is fully charged and correctly inserted. Press safety lock-out button before squeezing trigger. |
| Reduced cutting performance | Trimmer line too short or worn. Debris in trimmer head. | Replace or extend trimmer line. Clean trimmer head of any obstructions. |
| Excessive vibration | Damaged trimmer head or unbalanced line. Loose components. | Inspect trimmer head for damage; replace if necessary. Ensure all fasteners are tight. |
| Battery not charging | Charger not plugged in. Faulty battery or charger. | Verify charger is properly connected to power outlet and battery. Contact customer support if issue persists. |
Specifications
| Brand | Greenworks |
| Model Number | 82ST151 |
| Power Source | Battery Powered (82V) |
| Motor Type | Brushless |
| Cutting Width | 16 Inches |
| Max Speed | 5700 RPM |
| Battery Included | 1 Lithium Ion (82V 2.5Ah, 180 Wh) |
| Charger Included | Dual Port Charger |
| Item Weight | 9.98 kg |
| Product Dimensions | 184.99 x 22 x 12.7 cm |

Image: A diagram illustrating the key features of the Greenworks 82V 16-inch String Trimmer, including the advanced cooling system, variable speed trigger, and brushless motor.
Warranty and Support
The Greenworks 82V 16-inch Brushless Cordless String Trimmer comes with a 2-year tool and battery warranty. For warranty claims, technical support, or replacement parts, please contact Greenworks customer service.
Please visit the official Greenworks website or refer to the contact information provided in your product packaging for the most up-to-date support details.

Image: A graphic indicating the 2-year warranty for both the tool and battery.





