The sound of a lawnmower struggling, sputtering, and then suddenly falling silent is a familiar frustration for many homeowners. Often, the culprit is a broken string, leaving you with a half-mowed lawn and a sense of defeated exasperation. But fear not, fixing a broken string is a simple and straightforward task that can be tackled by anyone with a bit of patience and the right tools. This article will guide you through the process step-by-step, from identifying the problem to replacing the string, so you can get back to mowing in no time.
A Quick Overview
Fixing a broken string on a lawnmower involves understanding the type of string trimmer you have, identifying the specific issue, and then using the correct tools to replace the string. You’ll need a replacement string, a screwdriver, and potentially a pair of pliers. The process typically involves opening the trimmer head, removing the old string, winding the new string, and then closing the head back up. We’ll break down each of these steps in detail below.
Identifying the Problem: Is it Really the String?
Before you dive into replacing the string, it’s crucial to confirm that the issue is indeed a broken string. Here are a few signs that point to a string problem:
- The lawnmower suddenly stops running or sputters.
- You hear a faint “clicking” sound coming from the trimmer head.
- The trimmer head is empty or the string is visibly broken.
If you’re experiencing any of these symptoms, it’s likely that your string needs to be replaced. However, if your mower is still running but simply not cutting grass effectively, the issue might be something else entirely, like a dull blade or a clogged air filter.
How to Check if the String is the Issue
- Inspect the trimmer head: Look for any visible signs of a broken string.
- Listen for a clicking sound: If you hear a clicking sound coming from the trimmer head, it might indicate a broken or jammed string.
- Check the string spool: Make sure the string is actually present and not tangled or completely unwound.
Understanding Your String Trimmer
There are two main types of string trimmers: automatic feed and bump feed.
Automatic Feed Trimmers
These trimmers automatically dispense more string as you use it. They typically have a button or a lever that you push or pull to release the string.
Bump Feed Trimmers
Bump feed trimmers require you to tap the trimmer head on the ground to release more string. They usually have a button or a lever that you press to stop the string from dispensing.
Which Type Do You Have?
Before you start replacing the string, it’s important to know which type of trimmer you have. This will determine the specific steps you need to take to remove and replace the string.
Replacing the String: A Step-by-Step Guide
Now that you’ve identified the problem and understand your string trimmer type, it’s time to get started on replacing the string. We’ll break down the process into manageable steps for both automatic feed and bump feed trimmers.
Replacing String on Automatic Feed Trimmers
- Locate the trimmer head cover. The cover is usually made of plastic and secures the string spool.
- Unscrew the trimmer head cover. Use a screwdriver to unscrew the cover. Be sure to note the direction you’re turning the screws to ensure you reassemble them correctly.
- Remove the old string. Carefully remove the old string from the spool.
- Wind the new string. Follow the instructions on the new string packaging to correctly wind the string onto the spool.
- Reinstall the trimmer head cover. Secure the cover back onto the trimmer head using the screws you removed earlier.
- Test the string. Turn on the trimmer and give it a brief test to ensure the string is dispensing properly.
Replacing String on Bump Feed Trimmers
- Locate the trimmer head cover. The cover is usually made of plastic and secures the string spool.
- Unscrew the trimmer head cover. Use a screwdriver to unscrew the cover. Be sure to note the direction you’re turning the screws to ensure you reassemble them correctly.
- Remove the old string. Carefully remove the old string from the spool.
- Wind the new string. Follow the instructions on the new string packaging to correctly wind the string onto the spool.
- Thread the string through the holes in the trimmer head. The string should feed through holes on either side of the head.
- Reinstall the trimmer head cover. Secure the cover back onto the trimmer head using the screws you removed earlier.
- Test the string. Tap the trimmer head on the ground to release the string and ensure it is dispensing properly.
Troubleshooting
Sometimes, even after following the steps above, the string might not work correctly. Here are some common issues and their solutions:
Issue: The string doesn’t feed out properly.
Solution: Make sure the string is wound correctly on the spool and that it is threaded through the holes in the trimmer head properly. You may also need to adjust the tension of the string.
Issue: The string keeps breaking.
Solution: Check the quality of the string. Cheap string can easily break. Make sure you’re using the correct type of string for your trimmer. Also, check the trimmer head for any damage that might be causing the string to fray or break.
Issue: The trimmer head spins too fast.
Solution: If the trimmer head spins too fast, it can cause the string to break. Check the trimmer’s speed setting and adjust it accordingly.
Safety Tips
- Always wear safety glasses and gloves when working with lawn mowers.
- Disconnect the spark plug before performing any repairs.
- Be careful not to pinch your fingers when working with the trimmer head.
- Never run the trimmer without the trimmer head cover in place.
- Always read and follow the manufacturer’s instructions for your specific lawn mower.
Choosing the Right String
With so many different types of strings available, choosing the right one can feel overwhelming. Here are some key factors to consider:
- String type: There are two main types of string: round and square. Round string is more common and generally more affordable, while square string is more durable and can last longer.
- String thickness: The thickness of the string will determine how well it cuts through grass. Thicker string is better for thicker grass, while thinner string is ideal for delicate lawns.
- String material: Strings are typically made from nylon, which is a durable and affordable material. However, there are also strings made from other materials, such as polyethylene, which are more resistant to heat and wear.
Conclusion
Replacing a broken string on your lawnmower is a straightforward task that most homeowners can handle with ease. By following the steps outlined in this article, you can get your lawnmower back in working order quickly and efficiently. Remember to always practice safety precautions and choose the right type of string for your needs. With a little bit of effort, you can be back to mowing your lawn in no time.
FAQs
What tools do I need to fix a broken string on my lawn mower?
To fix a broken string on your lawn mower, you’ll need a few basic tools: a screwdriver, a pair of pliers, and a new spool of string. The screwdriver is used to remove the cover of the trimmer head, and the pliers are used to pull out the old string and insert the new string. You may also need a pair of scissors or a knife to trim the new string to the appropriate length.
It’s always a good idea to have these tools on hand, as they can come in handy for other lawn care tasks, such as adjusting the height of your mower or cleaning the underside of the deck. With these tools and a new spool of string, you’ll be able to fix a broken string on your lawn mower in no time.
How do I know if my lawn mower string is broken?
There are a few signs that your lawn mower string is broken. The most obvious is if you hear a loud snapping noise while you’re mowing. You might also notice that your mower isn’t cutting grass as effectively as it used to, or that you’re having to make multiple passes over the same area to get a clean cut.
If you suspect that your string is broken, you can check by removing the trimmer head cover and inspecting the string. If the string is broken or frayed, you’ll need to replace it. It’s important to replace the string as soon as possible to avoid damaging your lawn mower.
How long should the string be?
The length of the string you use will depend on the type of trimmer head you have. Some trimmer heads have a fixed length of string, while others allow you to adjust the length. If your trimmer head has a fixed length, the string should be the same length as the head. If your trimmer head allows you to adjust the length, you should choose a string that is slightly shorter than the head, so that it can spin freely without getting tangled.
It’s also important to choose a string that is the appropriate diameter for your trimmer head. If you use a string that is too thick, it could damage your trimmer head. If you use a string that is too thin, it could break easily.
How do I wind the string onto the spool?
Winding the string onto the spool can seem tricky at first, but with a little practice, you’ll be able to do it in no time. The process is similar for most trimmer heads. Start by threading the string through the holes in the spool. Then, wind the string around the spool, following the direction of the arrows on the spool.
Be sure to keep the string taut as you wind it, and avoid overlapping the string. Once you have wound the string onto the spool, you can insert the spool into the trimmer head.
How do I replace the string in my lawn mower?
Replacing the string in your lawn mower is a simple process. First, remove the trimmer head cover by unscrewing it. Then, remove the old string by pulling it out of the trimmer head. If you have a bump feed trimmer head, simply pull on the string until the new string emerges.
Next, insert the new string into the trimmer head, following the instructions for winding the string onto the spool. Once the string is in place, replace the trimmer head cover and tighten it securely.
What should I do if my lawn mower string keeps breaking?
If your lawn mower string keeps breaking, there are a few things you can do to troubleshoot the problem. First, make sure that you are using the correct type and diameter of string for your trimmer head. Second, check to see if the trimmer head is damaged or worn out.
If the trimmer head is damaged, you will need to replace it. If the trimmer head is worn out, you may be able to repair it by replacing the spool or the bearing. You can also try adjusting the length of the string to see if that helps.
How often should I replace my lawn mower string?
You should replace your lawn mower string when it becomes worn or frayed. This will usually happen after a few hours of mowing, depending on the type of grass you are mowing and the terrain.
You should also check the string regularly for signs of wear and tear, such as cracks or nicks. If you notice any signs of wear and tear, replace the string immediately to avoid damaging your lawn mower.