The satisfying whir of a string trimmer tackling overgrown weeds is a sound every homeowner loves. But what happens when that familiar whir turns into a sputtering groan? It’s a sure sign your string trimmer needs a new string. Fear not, replacing the string on your lawn mower is a simple task that can be accomplished with a few basic tools and a little know-how. This guide will walk you through the entire process, from understanding your string trimmer to choosing the right string and completing the replacement.
In essence, replacing the string on your lawn mower involves accessing the trimmer head, loading the new string, and winding it onto the spool. You’ll need to understand the different types of trimmer heads, the correct string type for your mower, and the proper winding technique.
Understanding Your String Trimmer Head
The first step is to understand the type of trimmer head your lawn mower has. There are two main types: automatic and bump-feed.
Automatic Trimmer Heads
Automatic trimmer heads automatically feed new string out as needed. These are typically easier to use, but they can be more expensive and require a specific type of string.
Bump-Feed Trimmer Heads
Bump-feed trimmer heads require you to manually feed out the string by tapping the head on the ground. These are usually less expensive than automatic heads and can accommodate a wider variety of string types.
Choosing the Right String
The type of string you choose can significantly impact your trimming experience. Consider these factors:
String Material
- Nylon: Nylon is the most common string material. It’s affordable, durable, and cuts through most vegetation.
- Round Trimmer Line: Offers a smooth cutting action, ideal for general trimming and light-duty tasks.
- Square Trimmer Line: Provides a more powerful and aggressive cut, making it ideal for tougher vegetation and thicker weeds.
- Twisted Trimmer Line: Offers a balance of durability and cutting power, suitable for various trimming tasks.
String Diameter
The string’s diameter determines its thickness. Thicker string provides more cutting power, but it may also be less precise. Choose a diameter based on the type of vegetation you need to trim and the intensity of your trimming needs.
String Length
The length of the string you need will depend on the capacity of your trimmer head. Check the manual or the trimmer head itself to determine the appropriate length.
Tools You’ll Need
- New string: Make sure to get the right type and length for your trimmer head.
- Screwdriver: You’ll need a Phillips head screwdriver to remove the trimmer head cover.
- Pliers: You can use pliers to hold the string while winding it.
- Gloves: These are optional but can protect your hands.
Replacing the String: Step-by-Step
Now, let’s get into the actual string replacement process:
Step 1: Disconnect the Trimmer
First, ensure your string trimmer is turned off and unplugged from the power source or that the battery is removed.
Step 2: Remove the Trimmer Head Cover
Locate the trimmer head cover. This is usually a plastic or metal cover that sits on top of the trimmer head. Use a Phillips head screwdriver to loosen and remove the screws that hold the cover in place.
Step 3: Remove the Old String
If your trimmer head has a spool, carefully remove the old string. Some trimmer heads have a simple spool design, where you can unwind the old string and pull it out. Others have more complex designs that may require a special tool or technique to release the string.
Step 4: Prepare the New String
Cut the new string to the desired length, using the length instructions provided by the manufacturer. If your trimmer head has a spool, you’ll need to wind the string around it.
Step 5: Wind the String
Automatic Trimmer Heads: These heads usually have a pre-wound spool. If not, you’ll need to wind the string onto the spool by hand.
Bump-Feed Trimmer Heads: These heads generally require you to wind the string around a spool inside the trimmer head. Follow these steps:
- Thread the String: Thread the string through the designated slot or hole on the spool.
- Wind the String: Carefully wind the string around the spool, making sure it’s evenly distributed and not tangled.
- Secure the String: Some trimmer heads have a latch or locking mechanism that secures the string once wound.
Important Tip: When winding the string onto the spool, make sure the string is wound in the same direction as the arrows or markings on the spool. This will ensure that the string feeds out properly.
Step 6: Reassemble the Trimmer Head
Once the string is wound, replace the trimmer head cover and tighten the screws securely.
Step 7: Test the Trimmer
Plug the trimmer back in, or reinsert the battery, and test it to ensure the string is feeding out properly. If the string is not feeding out, you may need to adjust the tension on the spool or check the winding.
Maintenance Tips
- Regular String Replacement: Over time, your string will wear down and need replacement. Regularly inspect your string for damage and replace it when needed to ensure optimal performance.
- Clean the Trimmer Head: Regularly clean the trimmer head to remove debris and grass clippings. This helps prevent jamming and ensures smooth operation.
- Lubricate the Trimmer Head: Lubricate the trimmer head mechanism to reduce friction and wear.
Conclusion
Replacing the string on your lawn mower is a straightforward task that can save you money and time. By understanding your trimmer head type, choosing the right string, and following the steps outlined above, you can easily keep your string trimmer running smoothly. With a little practice and patience, you’ll be able to tackle any trimming job with confidence!
FAQs
Q1: What kind of string do I need for my lawn mower?
The type of string you need depends on your lawn mower. Most mowers use round string, but some use square string. The string should be the correct diameter for your mower’s head. You can find the correct type of string in the owner’s manual or by checking the string on your current spool. You can buy string at most hardware stores and garden centers.
It’s important to use the right type of string for your lawn mower. Using the wrong type of string can damage your mower or cause it to not work properly. If you are unsure about what type of string you need, consult the owner’s manual or a lawn care professional.
Q2: How do I know if my string is worn out?
There are a few signs that your string is worn out. The string may be frayed, broken, or have lost its shape. If you notice any of these signs, it’s time to replace the string. You can also check the string by running your finger along it. If it feels rough or uneven, it’s probably time to replace it.
Using worn out string can make it difficult to mow your lawn and can damage your mower. It’s important to replace the string as soon as it shows signs of wear.
Q3: Do I need any special tools to replace the string?
You don’t need any special tools to replace the string on a lawn mower. Most mowers come with a built-in tool that you can use to remove and replace the string. If your mower doesn’t have a built-in tool, you can use a screwdriver or a pair of pliers.
The tool you use will depend on the type of mower you have. Some mowers have a simple button that you push to release the string, while others have a more complex system. If you’re not sure how to replace the string, you can consult the owner’s manual or watch a video online.
Q4: What are the steps to replace the string on my lawn mower?
First, you’ll need to remove the string head from the mower. This is usually done by pressing a button or turning a knob. Once the string head is removed, you can pull out the old string. Next, you’ll need to load the new string onto the spool. Most string heads have a simple system for doing this. Once the string is loaded, you can re-install the string head on the mower.
It’s important to make sure that the string is properly installed in the string head. If the string is not properly installed, it may not feed out correctly or could even come loose and cause damage.
Q5: How long should the string be?
The string should be long enough to reach the bottom of the string head, but not so long that it gets tangled. If the string is too short, it won’t be able to cut the grass properly. If the string is too long, it could get tangled and damage the string head.
It’s important to cut the string to the right length. This will ensure that the string feeds properly and that you can cut your grass evenly.
Q6: What do I do with the old string?
You can throw away the old string, but it’s best to recycle it if possible. Some cities have recycling programs for plastic, and some garden centers will accept used string. You can also cut the string up into small pieces and use it as mulch in your garden.
Disposing of the old string correctly will help to protect the environment. If you’re not sure how to recycle the string, check with your local recycling center.
Q7: How often should I replace the string?
You should replace the string when it starts to wear out or when it’s too short to cut the grass properly. This will typically be every few mowings. If you’re using your lawn mower frequently, you may need to replace the string more often.
Replacing the string when it’s needed will help you to get the best possible results from your lawn mower. It will also help to prevent damage to your mower.