1. Introduction
This manual provides instructions for the proper use, installation, and maintenance of the Greenworks 0.065" Single Line Auto-Feed Replacement String Trimmer Line Spool. This product is designed for use with compatible Greenworks string trimmers to ensure continuous and efficient trimming operations.

Figure 1: Greenworks 0.065" Single Line Auto-Feed Replacement Spools (3-Pack).
2. Compatibility
These replacement spools are specifically designed to be compatible with all Greenworks single line string trimmers. Ensure your trimmer model is listed or confirmed as compatible before installation.

Figure 2: Compatibility chart for Greenworks string trimmers.
Common compatible models include (but are not limited to):
- 24V 12" Trimmers (e.g., B00LK2MFGE, B086K5L38T, B00LK2MFDC, B01CA4PXPA, B01CA4PRP6, B09HHQ937L)
- 24V 12" GEN 2 Trimmers (e.g., B0BF9ZJT4W, B0BF9YFL2X, B0BRR6G118)
- 40V 13" Trimmers (e.g., B00D3KJN48, B00GXA6G7W)
- 40V 13" GEN 2 Trimmers (e.g., B0BFB1KNVW, B0BF9ZRC98, B0BRR7MPBP)
3. Setup and Installation
The Greenworks 0.065" Auto-Feed Spool features a tool-less installment design, allowing for quick and easy replacement.
3.1 Safety Precautions
- Always disconnect the power source (battery or cord) from the string trimmer before performing any maintenance or installation.
- Wear appropriate personal protective equipment, including safety glasses and gloves.
- Ensure the trimmer head has stopped rotating completely before handling.
3.2 Spool Replacement Procedure
- Prepare the Trimmer: Disconnect the battery pack or unplug the power cord from the string trimmer.
- Remove Old Spool: Locate the spool cover on the trimmer head. Depending on your model, you may need to press release tabs or twist the cover to remove it. Carefully remove the old, empty, or damaged spool.
- Insert New Spool: Take a new Greenworks 0.065" auto-feed replacement spool. Ensure the trimmer line is properly wound and secured in the spool's designated slots.
- Thread the Line: Locate the eyelet(s) on the trimmer head. Thread the end of the trimmer line from the new spool through the appropriate eyelet(s) on the trimmer head.
- Secure the Spool: Align the new spool with the spindle inside the trimmer head. Press or push the spool firmly into place until it clicks or seats securely.
- Reattach Cover: Replace the spool cover, ensuring it is securely fastened.
- Verify: Gently pull on the trimmer line to ensure it feeds smoothly and is properly seated.

Figure 3: Close-up of a single replacement spool.
4. Operating with Auto-Feed Spool
The 0.065" auto-feed spool is designed to automatically advance the trimmer line as needed during operation, eliminating the need for manual bumping or feeding.
4.1 Auto-Feed Mechanism
When the trimmer is running, the centrifugal force and vibrations cause the line to gradually extend. If the line becomes too short, the auto-feed mechanism will release a small amount of new line. The cutting blade on the trimmer's guard will then trim the line to the appropriate length.

Figure 4: Illustration of the auto-feed spool mechanism.
4.2 Optimal Performance Tips
- Ensure the trimmer guard and cutting blade are clean and free of debris for proper line trimming.
- Avoid prolonged contact with hard surfaces (e.g., concrete, rocks) as this can rapidly wear down the line and potentially damage the spool or trimmer head.
- Use the trimmer at appropriate speeds for the task to optimize line consumption.
5. Maintenance and Storage
5.1 Spool Maintenance
- Cleaning: Periodically inspect the spool and the trimmer head for accumulated grass, dirt, or debris. Clean with a dry cloth or soft brush. Do not use harsh chemicals.
- Line Inspection: Before each use, check the trimmer line for any signs of fraying, cracking, or excessive wear. Replace the spool if the line appears compromised.
5.2 Storage
- Store unused spools in a cool, dry place, away from direct sunlight and extreme temperatures. This helps preserve the integrity and flexibility of the trimmer line.
- Keep spools in their original packaging or a sealed container to prevent dust and dirt accumulation.
6. Troubleshooting
If you encounter issues with the trimmer line or spool, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Line not feeding automatically. |
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| Line breaks frequently. |
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7. Specifications
| Feature | Detail |
|---|---|
| Brand | Greenworks |
| Line Diameter | 0.065 inches |
| Line Type | Single Line |
| Feed Mechanism | Auto-Feed |
| Compatibility | All Greenworks Single Line String Trimmers |
| Item Weight (per spool) | Approximately 0.06 Pounds |
| Country of Origin | China |

Figure 5: Visual representation of 0.065 inch single line.
8. Warranty Information
Greenworks products are manufactured to high-quality standards. For specific warranty details regarding this replacement spool, please refer to the warranty information provided with your Greenworks string trimmer or visit the official Greenworks website. Generally, consumable parts like trimmer line spools may have limited or no warranty coverage against normal wear and tear.
9. Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact Greenworks customer service. You can typically find contact information on the official Greenworks website or within the user manual of your Greenworks string trimmer.
Greenworks Official Website: www.greenworkstools.com