Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your CRAFTSMAN 0.065 inch replacement spool (Model CMZST065). This spool is designed for use with CRAFTSMAN WEEDWACKER String Trimmers, specifically the CMCST900, CMESTA900, CMESTE920, and CMCST98020 series. It is factory wound for smooth, reliable functionality and built to minimize vibration for consistent, expert results.
Important Safety Information
Always wear appropriate safety gear, including eye protection and sturdy shoes, when operating string trimmers. Keep bystanders at a safe distance to avoid injury from flying debris. Do not trim near flammable materials to prevent fires. Always follow the manufacturer's instructions for safe operation of your string trimmer.
Product Overview
The CRAFTSMAN 0.065" String Trimmer Replacement Spool is designed for quick and easy line replacement, ensuring minimal downtime during your yard work. Its factory-wound design helps prevent tangles and ensures consistent line feeding.

Image: The CRAFTSMAN 0.065 inch replacement string trimmer spool, showing the clear line wound around the red plastic spool.

Image: The CRAFTSMAN 0.065 inch replacement string trimmer spool with its red cap removed, revealing the internal winding mechanism and the spring.

Image: The bottom view of the CRAFTSMAN 0.065 inch replacement string trimmer spool, showing the textured surface and central opening.
Setup: Replacing the Spool
To ensure optimal performance and safety, follow these steps to replace the string trimmer spool:
- Power Off: Ensure your string trimmer is turned off and the battery is removed before attempting any maintenance or part replacement.
- Remove Old Spool: Locate the spool housing on your trimmer head. Press the tabs or twist the cap to remove the old spool and its cap.
- Insert New Spool: Take the new CRAFTSMAN 0.065" replacement spool. Ensure the line is properly threaded through the eyelets on the spool housing. Align the new spool with the housing and press it firmly into place until it clicks.
- Replace Cap: Reattach the spool cap, ensuring it is securely fastened.
- Check Line: Gently pull on the trimmer line to ensure it feeds smoothly and is properly seated.
Video: Craftsman CMZST0653 String Trimmer Spool Line Installation
This video demonstrates the process of installing the Craftsman CMZST0653 string trimmer spool line, showing how to remove the old spool and correctly insert the new one for optimal performance.
Video: Craftsman Trimmer Line Replacement Overview
This video provides a general overview of replacing the trimmer line on a Craftsman weed eater, highlighting the ease of use for 0.065 inch line spools.
Operating Instructions
Once the replacement spool is installed, your CRAFTSMAN string trimmer is ready for use. The factory-wound line is designed for smooth, reliable functionality and minimizes vibration during operation.
- Automatic Feed System: This spool is compatible with trimmers featuring an automatic line feed system. This means the line will advance automatically as needed, eliminating the need for manual bumping or adjustments during trimming.
- Power On: Insert the battery into your trimmer. Press and hold the safety button, then squeeze the trigger to start the trimmer.
- Trimming: Hold the trimmer firmly and maintain a comfortable distance from the cutting head. Move the trimmer in a sweeping motion across the area to be trimmed.
- Edging: Some CRAFTSMAN trimmers allow for conversion to an edger. Refer to your trimmer's specific manual for instructions on how to adjust the head for edging tasks.
Maintenance
Proper maintenance ensures the longevity and efficiency of your string trimmer and replacement spools.
- Regular Cleaning: After each use, clean the trimmer head and spool housing to remove grass clippings and debris. This prevents buildup that can hinder line feeding.
- Inspect Line: Periodically check the trimmer line for wear and tear. Replace the spool when the line is depleted or if it shows signs of damage.
- Storage: Store replacement spools in a cool, dry place away from direct sunlight to maintain line integrity.
Troubleshooting
If you encounter issues with your replacement spool, consider the following common solutions:
- Line Not Feeding: Ensure the spool is correctly seated in the trimmer head. Check for any tangled line within the spool or debris obstructing the eyelets.
- Excessive Vibration: Verify that the spool is properly installed and balanced. If vibration persists, inspect the trimmer head for damage or wear.
- Line Breaking Frequently: This can occur if the line is old, stored improperly, or if you are trimming against hard surfaces. Ensure you are using the correct 0.065 inch line for your trimmer.
Specifications
| Feature | Detail |
|---|---|
| Brand | CRAFTSMAN |
| Model Number | CMZST065 |
| Line Diameter | 0.065 inches |
| Compatibility | CMCST900, CMESTA900, CMESTE920, CMCST98020 Series CRAFTSMAN WEEDWACKER String Trimmers |
| Item Weight | 1 Ounce |
| Product Dimensions | 7"L x 5"W |
Warranty and Support
For warranty information or technical support regarding your CRAFTSMAN 0.065" String Trimmer Replacement Spool, please refer to the documentation included with your original string trimmer or visit the official CRAFTSMAN website. Keep your purchase receipt for warranty claims.





