The whirring of a lawn mower is a familiar summertime sound, but sometimes that sound turns into a jarring clatter. If your trusty lawn mower has started skipping over the grass, or even worse, spitting out string instead of cutting it, it’s time to replace the string. This simple process can save you a trip to the repair shop and help your lawn look its best. In this article, we’ll walk you through the steps of replacing your lawn mower string, covering everything from identifying your type of trimmer head to choosing the right string and ensuring a clean, smooth cut.
A Quick Overview: Replacing the string on a lawn mower is a simple DIY task that anyone can do. It involves a few easy steps:
- Identify your trimmer head: The type of trimmer head you have determines how you access and replace the string.
- Choose the right string: Consider your lawn’s needs and the type of string your trimmer head requires.
- Replace the string: Follow the instructions for your specific trimmer head to load the new string.
- Trim your lawn: Enjoy a neatly trimmed lawn with your newly strung mower.
Understanding Your Trimmer Head
The first step is to identify the type of trimmer head you have. There are two main types:
- Automatic Feed: These heads have a button that automatically feeds more string when needed. The string is stored within the head itself.
- Manual Feed: These heads require you to manually feed the string through a spool.
Here’s how to determine the type of head you have:
- Automatic Feed: Look for a button on the top or side of the trimmer head. Pressing this button will release more string.
- Manual Feed: The trimmer head will have a visible spool with a small hole for feeding the string.
Choosing the Right String
The type of string you choose can impact the performance and quality of your cut. Here are some factors to consider:
String Material
- Nylon: The most common and affordable option, nylon string is generally durable and provides a clean cut.
- Round String: This classic type is ideal for trimming around delicate plants.
- Square String: Offers increased durability and a more aggressive cut for tough weeds and thicker grass.
- Monofilament String: Made from a single filament, it offers a smooth, clean cut and is ideal for fine trimming.
String Diameter
- Thicker string: Offers more power and is suitable for thicker weeds and taller grass.
- Thinner string: Provides a smoother, more precise cut and is ideal for delicate landscaping.
String Length
- Shorter string: May require more frequent refills but offers a cleaner, more controlled cut.
- Longer string: Requires less frequent refills but may be more prone to tangling and can damage delicate plants.
Replacing the String on Automatic Feed Trimmer Heads
- Locate the Release Button: Press the button to release the old string.
- Remove the Old String: Once the button is pressed, the old string should automatically retract.
- Insert the New String: Feed the new string into the opening on the trimmer head, following the arrows or instructions provided.
- Secure the String: Once the string is in place, release the button, and the trimmer head will automatically secure it.
- Test the String: Start the mower and give it a test run to make sure the string is feeding correctly and cutting evenly.
Replacing the String on Manual Feed Trimmer Heads
- Open the Head: Look for a release button or a lever on the side of the head. Press or move the release mechanism to open the trimmer head.
- Remove the Old String: Take out the spool with the old string.
- Load the New String: Take the new string and wind it onto the spool, following the direction indicated by the arrow on the spool. Ensure the string is wound tightly and evenly.
- Re-install the Spool: Place the loaded spool back into the trimmer head, aligning the notch on the spool with the corresponding groove on the head.
- Close the Head: Secure the head by pressing the release mechanism.
- Test the String: Start the mower and test the string to ensure it is working properly.
Troubleshooting Common Issues
Even with a fresh string, you may encounter some problems. Here are some common issues and their solutions:
The String Won’t Feed
- Check the String Tension: Ensure the string is wound tightly and evenly on the spool.
- Clean the Feed Mechanism: Dirt and debris can clog the automatic feed mechanism. Use a brush or compressed air to clean the area around the feed button.
The String Breaks Frequently
- Incorrect String Diameter: Using a string that is too thick for your trimmer head can lead to breakage.
- Improper String Winding: If the string is wound unevenly, it can create weak spots that break easily.
The String Doesn’t Cut Cleanly
- Dull Blade: The trimmer head itself may need sharpening.
- Bent or Damaged String: Examine the string for any damage or bends. Replace any damaged or warped string.
Maintenance Tips
To keep your lawn mower running smoothly, follow these maintenance tips:
- Inspect the String Regularly: Check the string for wear and tear and replace it as needed.
- Clean the Trimmer Head: Remove dirt and debris from the trimmer head to prevent clogging and ensure smooth operation.
- Store Properly: Store your lawn mower in a dry, clean place during the off-season.
Enjoy a Neatly Trimmed Lawn
Replacing the string on your lawn mower is a simple yet essential maintenance task that ensures a clean and efficient cut. By following the steps outlined in this guide, you can keep your lawn looking its best and avoid frustrating mowing experiences. Remember to choose the right type of string for your needs, and always inspect and clean your trimmer head regularly. With a little effort, you can enjoy a beautifully trimmed lawn all season long.
FAQs
What tools do I need to replace the string on a lawn mower?
You will need a few basic tools to replace the string on your lawn mower. These include a Phillips head screwdriver, a pair of pliers, and a new spool of trimmer line. The specific type of string you need will depend on your mower model, so check the owner’s manual or the packaging of your existing spool for the correct type. You may also want to wear work gloves to protect your hands from any sharp edges.
Additionally, it’s helpful to have a small wire brush on hand to clean out any dirt or debris from the trimmer head. A small container or bag to hold the old string is also a good idea.
How do I know if I need to replace the string on my lawn mower?
You’ll know it’s time to replace the string when you notice a decrease in the efficiency of your lawn mower. This might be evidenced by the mower struggling to cut through grass, leaving uneven patches, or making a grinding noise. If you see the string winding around the spool, or notice that it’s become frayed or broken, it’s also a sign that it needs to be replaced.
It’s generally a good idea to check the string before every use, especially if you’ve been using it to trim around obstacles or in thicker grass. Replacing the string regularly can prevent damage to the trimmer head and ensure optimal performance.
How do I remove the old string from the trimmer head?
To remove the old string, you’ll first need to disconnect the mower from the power source. Then, locate the trimmer head, which is usually located at the bottom of the mower. Most trimmer heads have a button or release mechanism that needs to be pressed or turned to open the head.
Once the head is open, you can remove the old string. Depending on the type of head, you may need to use pliers or a screwdriver to detach the spool.
How do I load the new string onto the trimmer head?
Loading the new string onto the trimmer head is fairly simple. First, thread the string through the spool’s holes, as indicated in your mower’s manual or on the packaging of the new string. Once the string is threaded, you can wind it onto the spool by turning the handle of the trimmer head, or by manually winding it around the spool.
When winding the string, make sure to keep it taut and evenly distributed around the spool. If the string isn’t wound evenly, it can cause the string to break or become tangled, making it difficult to use the mower.
What is the best type of string to use for my lawn mower?
The best type of string to use for your lawn mower depends on the type of grass you are cutting and the terrain you are mowing on. For thicker grass or tougher terrain, you may need a heavier string. For thinner grass or delicate areas, a thinner string might be a better choice.
You can also choose from a variety of materials, such as nylon, braided string, or even metal string. Nylon is the most common type of string, and it’s generally affordable and durable. Braided string is often more durable than nylon and can withstand thicker grass and tougher terrain. Metal string is the most durable option, but it can also be more expensive and can damage delicate surfaces.
How do I adjust the length of the string?
Adjusting the length of the string on a lawn mower is usually done automatically as the string is dispensed. When the string makes contact with something, the impact will break a small section off. However, if you need to manually adjust the length, there are usually ways to do so.
Many mowers have a mechanism that allows you to adjust the length of the string by pulling on it. There’s usually a button or lever that you can press or pull to release more string. You should always refer to your mower’s manual for the specific instructions on how to adjust the length of the string on your particular model.
How can I prevent the string from tangling?
One of the most common problems with trimmer string is tangling. There are a few things you can do to help prevent tangling. First, make sure the string is wound evenly on the spool. Second, avoid using the string in tight spaces or around obstacles, as this can easily cause it to become tangled.
Third, it’s best to use a string that is specifically designed for your type of trimmer head. Different heads have different string capacities, and using the wrong type of string can lead to tangling. Lastly, always inspect the string before using it to make sure it is not already tangled or damaged.