Introduction
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your KAKO 29252 Replacement Spools. These spools are designed for seamless compatibility with various Greenworks 24V and 40V single line cordless string trimmers, ensuring efficient and reliable performance for your lawn care needs.

Image: KAKO 29252 Replacement Spools and Caps for Greenworks Trimmers.
Compatibility
The KAKO 29252 replacement spools are compatible with the following Greenworks single line cordless trimmer models:
- 24V Single Line Cordless Trimmers: 29252, 29092, 21212, 21342, 2100302, 2102902, 2103202
- 40V Single Line Cordless Trimmers: 21302, 21332
These spools are also designed to replace Greenworks original spools models 29092, 29252, and cap covers models 3411546A-6.

Image: Visual guide to compatible Greenworks trimmer models for KAKO 29252 spools.
Setup: Spool and Cap Installation
Follow these steps to correctly install a new replacement spool and cap into your Greenworks string trimmer:
- Remove Old Spool: Ensure the trimmer is powered off and the battery is removed. Press the two tabs on the side of the existing cap to release it. Carefully remove the old spool from the trimmer head.
- Prepare New Spool: Take a new KAKO 29252 replacement spool. Ensure the line is properly wound and secured in the small notches on the spool to prevent unraveling during installation.
- Insert New Spool: Place the new spool into the trimmer head, aligning it with the internal mechanism. The larger hole side of the spool should face downwards.
- Feed the Line: Thread the end of the trimmer line through the eyelet on the trimmer head. Gently pull the line until it is securely in place and extends a few inches from the head.
- Attach New Cap: Align the new cap (or your existing cap if in good condition) with the trimmer head. Press down firmly until the tabs click into place, securing the cap.

Image: Visual steps for replacing the trimmer line spool and cap.
Operating Instructions
Once the replacement spool is installed, your Greenworks trimmer is ready for use. The KAKO 29252 spools are designed to work with the auto-feed system of compatible trimmers, eliminating the need for manual line winding during operation. The aerodynamic shape of the line reduces drag for more efficient cutting.
- Always wear appropriate safety gear, including eye protection, long pants, and sturdy footwear, when operating the string trimmer.
- Ensure the area is clear of debris, rocks, and other objects that could be thrown by the trimmer line.
- The trimmer line will automatically extend as needed during operation. Avoid intentionally striking hard surfaces to prolong line life.

Image: A Greenworks trimmer utilizing the KAKO replacement line for efficient grass cutting.
Maintenance Tips
To ensure the longevity and optimal performance of your KAKO replacement spools and trimmer line, consider the following maintenance tips:
- Storage: Store unused spools in a cool, dry place away from direct sunlight to prevent the nylon line from becoming brittle.
- Line Quality: The durable nylon thread is designed for strength, but continuous impact with hard surfaces can cause premature wear.
- Protective Measures: Always take protective measures while using the product to avoid damage from spilled lines or excessive wear.
Troubleshooting
If you encounter issues with your KAKO 29252 replacement spools, consider these common solutions:
- Line Breaks Easily: While the line is designed to be durable, some users have noted that the string can break easily under certain conditions. Ensure you are not hitting excessively hard objects or surfaces. Consider adjusting your trimming technique.
- Spool Does Not Fit: Double-check the compatibility list provided in this manual and on the product packaging. Ensure your trimmer model is listed. If the spool is too large or too small, it may not be the correct replacement for your specific trimmer.
- Auto-Feed Issues: If the line is not feeding automatically, ensure the spool is correctly seated and the cap is securely fastened. Sometimes, grass or debris can obstruct the feeding mechanism; clean the trimmer head thoroughly.
Specifications
| Feature | Detail |
|---|---|
| Brand | KAKO |
| Model Number | 29252 |
| Line Diameter | 0.065 inches |
| Line Length per Spool | 16 feet |
| Material | High-quality ABS spool, durable nylon thread |
| UPC | 782932399482 |
| Package Contents | 10 Spools, 2 Cap Covers |

Image: Detailed specifications of the trimmer line, including shape, diameter, and length.

Image: The complete package of 10 KAKO 29252 spools and 2 cap covers.
Warranty and Support
KAKO is committed to providing satisfactory service. If you have any questions or concerns about your 29252 weed eater spool within 60 days of purchase and use, please contact KAKO customer service for assistance. While specific long-term warranty details are not provided, the manufacturer aims to ensure customer satisfaction for initial product performance.
For support, please refer to the contact information provided with your product packaging or visit the official KAKO website.