How to Restring Craftsman Electric Weed Eater? Steps

Introduction

If your Craftsman electric weed eater is losing cutting power, producing weak string speed, or requiring frequent adjustments, the issue may be worn-out cutting line. Learning how to restring a Craftsman electric weed eater is a straightforward maintenance task that can restore performance and extend the tool’s lifespan. This guide walks you through every step of the process, from identifying compatible string to securing the new line properly. Whether you’re a seasoned DIY enthusiast or a first-time owner, this article provides the knowledge needed to complete the job confidently and safely.

Table of Contents

• Why Restring Your Weed Eater?
• Tools and Materials Needed
• Identifying Your Model and Specifications
• Preparing the Tool Safely
• Removing the Old Cutting Line
• Cleaning the Spool and Housing
• Choosing the Right Replacement String
• Rewinding the Spool Correctly
• Reinstalling the Spool
• Feeding and Securing the New Line
• Testing the Tool
• String and Spool Comparison
• Tips and Best Practices
• Common Mistakes to Avoid
• Frequently Asked Questions
• Conclusion

Why Restring Your Weed Eater?

Over time, the cutting line on your Craftsman electric weed eater wears down from constant contact with concrete, brick, and thick vegetation. When the line becomes too short or frayed, the tool loses effectiveness and may even strain the motor. Regular restringing ensures consistent cutting performance, reduces wear on internal components, and prevents unexpected breakdowns during yard work. It’s also far more cost-effective than replacing the entire trimmer head or purchasing a new unit.

Tools and Materials Needed

Before beginning the restringing process, gather the following items:

• New cutting line compatible with your model
• Small flathead screwdriver
• Phillips-head screwdriver (if required)
• Clean cloth or paper towels
• Compressed air or soft brush (optional)
• Gloves for hand protection

Having these tools ready will streamline the task and minimize interruptions.

Identifying Your Model and Specifications

Craftsman produces many electric weed eater models, each with slightly different spool designs and string requirements. Locate the model number on the motor housing or trimmer head. Common models include the Craftsman 136.17150, 136.17151, and 136.17152. Refer to the user manual or manufacturer website to confirm the correct string gauge and length. Using the wrong size can cause feeding issues or damage the spool mechanism.

Preparing the Tool Safely

Safety is critical when working with power tools. Always unplug the weed eater from the electrical outlet before starting. Remove the battery pack if your model uses one. Place the tool on a stable work surface, and ensure the area is well-lit. Wearing gloves protects your hands from sharp edges and residual debris. Never attempt to remove or install the spool while the tool is connected to power.

Removing the Old Cutting Line

1. Locate the release button or tab on the trimmer head.
2. Press the button and rotate the head counterclockwise to detach it from the motor shaft.
3. Once removed, inspect the spool for damage or debris buildup.
4. Pull out any remaining line fragments from the spool and housing.

Take care not to force any components. If the head resists removal, double-check that the release mechanism is fully engaged.

Cleaning the Spool and Housing

After removing the old line, clean the spool and interior housing thoroughly. Use a cloth or compressed air to remove grass clippings, dirt, and tangled line remnants. A soft brush can help dislodge stubborn debris. Avoid using water or solvents, which may damage plastic components or electrical contacts. A clean spool ensures smooth line feeding and prevents premature wear on the new string.

Choosing the Right Replacement String

Selecting the correct replacement line is essential for proper operation. Most Craftsman electric weed eaters use a dual-line system with a diameter between 0.065 inches and 0.080 inches. Check your manual or the original packaging for specifications. Common options include:

• Round nylon line (standard durability)
• Square or star-shaped line (enhanced cutting)
• Twisted or braided line (longer life)

Purchase a spool or bulk line that matches your model’s requirements. Using a thicker line than recommended can overload the motor, while a thinner line may tangle frequently.

Rewinding the Spool Correctly

Proper winding prevents tangles and ensures smooth line deployment:

1. Cut a new length of string, typically 15 to 20 feet depending on spool capacity.
2. Find the anchor hole in the center of the spool.
3. Insert one end of the string into the hole and leave a short tail inside.
4. Wind the string tightly in the direction indicated by arrows on the spool.
5. Maintain even tension to avoid loose coils.
6. Leave about 6 inches of string extending from the spool before reinserting it.

If your model uses two lines, repeat the process for the second groove, ensuring both lines are wound in the same rotational direction.

Reinstalling the Spool

With the spool freshly wound, reinstall it into the trimmer head:

1. Align the spool with the housing and insert it firmly.
2. Ensure the line exits through the designated feed slots.
3. Rotate the head clockwise to secure it onto the motor shaft.
4. Press the release button to confirm the head locks into place.

Gently tug on the line to verify it’s seated correctly and won’t slip during operation.

Feeding and Securing the New Line

After installation, manually feed approximately 6 inches of line through each side of the trimmer head. If your model features automatic feed, briefly activate the tool to allow the line to extend automatically. For manual feed models, pull the line until both sides are even. Trim any excess length with scissors if necessary. Ensure the line is not twisted or crossed, which can cause binding during use.

Testing the Tool

Before returning to yard work, test the weed eater in a safe outdoor area:

1. Plug the tool into a grounded outlet or insert the battery.
2. Hold the tool at your side and briefly activate the trigger.
3. Observe whether the line extends smoothly and rotates evenly.
4. Check for unusual vibrations, noise, or resistance.

If problems arise, turn off the tool and recheck the spool alignment, line tension, and feed mechanism.

String and Spool Comparison

Tips and Best Practices

• Always unplug the tool before disassembly.
• Keep a spare spool pre-wound for quick replacements.
• Wind the string clockwise to match most spool designs.
• Use a consistent winding tension to prevent loose coils.
• Inspect the trimmer head for cracks or worn components.
• Store replacement line in a cool, dry place away from sunlight.
• Refer to the user manual for model-specific instructions.

Common Mistakes to Avoid

Even experienced users make errors during restringing. Avoid these pitfalls:

• Using the wrong string diameter, which can cause motor strain or poor feeding.
• Winding the string in the wrong direction, leading to tangles.
• Over-tightening the spool, making line deployment difficult.
• Neglecting to clean the housing, resulting in debris-related jams.
• Installing the spool incorrectly, causing misalignment during use.
• Failing to test the tool after restringing, missing potential issues.

Addressing these mistakes proactively saves time and prevents damage to your equipment.

Frequently Asked Questions

How often should I restring my Craftsman electric weed eater?

The frequency depends on usage. Light seasonal use may require restringing once per year, while frequent trimming of tough vegetation might necessitate monthly replacements. Monitor the line length and condition regularly, and restring as soon as it becomes too short or frayed.

What type of string works best for Craftsman electric weed eaters?

Most models perform well with round nylon line between 0.065 and 0.080 inches in diameter. For thicker weeds, consider square or star-shaped line for improved cutting efficiency. Always consult your model’s specifications before purchasing.

Can I use single-line instead of dual-line on my trimmer?

While some trimmers support single-line operation, dual-line systems provide better balance and cutting coverage. Using single-line may result in uneven trimming and increased vibration. Stick with the configuration recommended by the manufacturer.

Why isn’t my automatic feed working after restringing?

Common causes include incorrect spool winding direction, insufficient line length, or debris blocking the feed mechanism. Recheck the winding orientation, ensure adequate line extension, and clean the housing if necessary.

Does the string need to be wound in a specific direction?

Yes, most spools have directional arrows indicating the correct winding path. Winding in the wrong direction causes tangles and feeding problems. Always follow the arrows printed on the spool.

What should I do if the spool is damaged?

If the spool is cracked, warped, or severely worn, replace it with a genuine Craftsman part or compatible alternative. Continuing to use a damaged spool risks poor performance and potential safety hazards.

Can I buy bulk string instead of pre-wound spools?

Yes, bulk string is available in various diameters and materials. However, pre-wound spools offer convenience and ensure correct winding. If using bulk line, take care to wind it evenly and in the proper direction.

Why does my weed eater make noise after restringing?

Unusual noise may indicate improper spool installation, loose components, or line entanglement. Turn off the tool, inspect the spool and head assembly, and make adjustments as needed before operating again.

How should I store my weed eater after restringing?

Store the tool in a clean, dry location away from direct sunlight. Hang it or place it on a rack to prevent damage. If storing for extended periods, remove the battery or unplug the unit to avoid accidental activation.

Will restringing void my warranty?

No, routine maintenance such as restringing is typically covered under standard warranties. However, using non-approved parts or causing damage during service may affect coverage. Always follow manufacturer guidelines to preserve warranty validity.

Conclusion

Learning how to restring a Craftsman electric weed eater is a valuable skill that enhances tool performance and longevity. By following the steps outlined in this guide—preparing the tool safely, selecting the correct string, winding the spool properly, and testing operation—you can restore your trimmer to peak condition. Regular maintenance not only improves cutting efficiency but also reduces wear on internal components, saving money and time in the long run. With the right tools and attention to detail, restringing becomes a quick and rewarding task that keeps your yard looking its best season after season.