Greenworks 21342

Greenworks 24V 12" Cordless String Trimmer / Edger User Manual

Brand: Greenworks

Model: 21342

1. Introduction and Overview

The Greenworks 24V 12” String Trimmer/Edger is designed for efficient and comfortable lawn care. This cordless tool offers a 12-inch cut path and a 0.065-inch line diameter auto-feed head for easy line advancement. Its 4-position pivoting head allows for maximum control during trimming and edging tasks. Powered by a 24V lithium-ion battery, it provides consistent power without memory loss, ensuring reliable performance for various indoor and outdoor applications.

2. Safety Information

WARNING: Always wear eye protection and gloves when operating the string trimmer. Be aware of flying debris and keep hands and body away from the cutting path. Read the full user manual for complete safety instructions.

3. Package Contents

Your Greenworks 24V 12" Cordless String Trimmer / Edger package includes the following items:

Included items: Greenworks 24V 12 inch string trimmer, operator's manual, 24V 2Ah battery, and rapid charger.

Figure 1: All components included in the Greenworks 24V 12" String Trimmer/Edger package.

4. Setup and Assembly

The Greenworks 24V 12" String Trimmer requires minimal assembly before first use. Ensure all components listed in Section 3 are present.

  1. Attach the Guard: Secure the protective guard to the trimmer head using the provided screws.
  2. Adjust the Auxiliary Handle: Position the auxiliary handle for comfortable operation. It can be adjusted along the telescoping shaft.
  3. Charge the Battery: Insert the 24V 2.0 Ah battery into the rapid charger. The charger will indicate when the battery is fully charged (approximately 60 minutes).
  4. Insert the Battery: Slide the charged battery into the designated slot on the trimmer handle until it clicks securely into place.
Four panels showing compact battery, telescoping shaft adjustment, pivoting head, and 12-inch cutting path.

Figure 2: Visual guide for key assembly and adjustment points.

5. Operating Instructions

Before operating, ensure the battery is fully charged and securely installed. Always wear appropriate safety gear.

5.1 Powering On/Off

5.2 Trimming Operation

Hold the trimmer comfortably with both hands. Use the 12-inch cutting path to trim grass around obstacles, fences, and garden beds. The auto-feed head automatically advances the 0.065-inch line as needed.

Close-up of the 12-inch cutting path of the Greenworks string trimmer on grass.

Figure 3: Trimming operation demonstrating the 12-inch cutting path.

5.3 Edging Operation

To switch from trimming to edging mode:

  1. Ensure the trimmer is off and the battery is removed for safety.
  2. Press the pivot button on the trimmer head and rotate the head 90 degrees until it locks into the edging position.
  3. The edging wheel will now be aligned to guide the trimmer along hard surfaces like sidewalks and driveways.
  4. Reinsert the battery and operate as usual, guiding the wheel along the edge for a clean finish.
Image showing how to convert the string trimmer to an edger with a wheel.

Figure 4: Converting the trimmer to edger mode.

Close-up of the Greenworks trimmer head rotating 90 degrees for edging.

Figure 5: 90° Rotating Head for edging.

5.4 Official Product Video

Video 1: Official Greenworks 24V 12-inch String Trimmer demonstration. This video provides a brief overview of the trimmer's features and operation, including its 2-in-1 functionality.

6. Features

Greenworks 24V 12 inch string trimmer with labels pointing to its features like economic grip, auxiliary handle, telescoping shaft, auto feed head, 90 degree rotating head, wheel for edger, 12 inch cutting path, and 0.065 inch quiet line.

Figure 6: Labeled diagram of the Greenworks 24V 12" String Trimmer's features.

A person adjusting the telescoping shaft of the Greenworks string trimmer.

Figure 7: Adjusting the telescoping shaft for user comfort.

7. Maintenance

Regular maintenance ensures optimal performance and longevity of your trimmer.

7.1 Line Replacement

The trimmer features an auto-feed head, but the line spool will eventually need replacement. To replace the 0.065" line spool:

  1. Ensure the trimmer is off and the battery is removed.
  2. Locate the two release tabs on the trimmer head. Press them simultaneously to remove the spool cap.
  3. Carefully remove the empty spool.
  4. Insert a new 0.065" spool, ensuring the line is properly threaded through the eyelet.
  5. Replace the spool cap, aligning the tabs and pressing until it clicks into place.

7.2 Battery Care

The 24V lithium-ion battery provides fade-free power. Recharge the battery after each use or when the indicator shows low charge. Store the battery in a cool, dry place away from direct sunlight.

8. Troubleshooting

9. Specifications

AttributeValue
BrandGreenworks
Power SourceBattery Powered
ColorGreen
Item Weight8.8 Pounds (4.0 kg)
Cutting Width12 Inches (30.48 cm)
Product Dimensions30.25"L x 7.5"W
Speed9000 RPM
Assembly RequiredYes
Battery Type1 Lithium Ion (included)
Item Model Number21342
UPC841821011840

10. Warranty and Support

The Greenworks 24V 12" Cordless String Trimmer / Edger typically comes with a 3-year warranty on the tool and battery. Please refer to the official owner's manual for detailed warranty information and terms.

For further support, troubleshooting, or to view the complete user guide, please visit the official Greenworks website or refer to the PDF manual:

Download User Manual (PDF)

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