Starting your lawn mower with a broken pull string can be frustrating. But don’t despair! This seemingly complex task is actually quite simple. This article will walk you through the entire process of replacing a pull string, from identifying the correct parts to securing it properly. Whether you’re a seasoned mower owner or a first-timer, this guide will equip you with the knowledge and confidence to tackle this common lawn mower repair.
In a nutshell, replacing a pull string on a lawn mower involves disconnecting the old string, attaching the new string to the recoil starter, and reconnecting the string to the handle. We’ll break down each step in detail, providing clear instructions and helpful tips along the way.
Identifying the Parts
Before you start, you’ll need a few essential components. Let’s go over what you’ll need:
- New Pull String: The most obvious, but also the most crucial part. Ensure you get a string specifically designed for your lawn mower model.
- Recoil Starter Assembly: The housing that contains the spring and the mechanism that retracts the pull string.
- Recoil Starter Housing: This is the outer casing that encloses the recoil starter assembly.
- Handle: This is the part you pull to start the lawn mower.
Disconnecting the Old Pull String
Now, let’s get started with the actual replacement process. Begin by disconnecting the old pull string:
- Locate the pull string attachment: Find where the string is attached to the handle. This is usually a small metal loop or a clip.
- Remove the string: Gently pull the string out of the handle attachment. You may need to use a small screwdriver or pliers to help loosen any clips or fasteners.
Attaching the New Pull String to the Recoil Starter
Now, it’s time to attach the new pull string to the recoil starter assembly:
- Identify the starter assembly: This is typically located on the top or side of the lawn mower engine. It’s a round or rectangular housing with a pull cord handle coming out of it.
- Locate the string attachment point: On the recoil starter assembly, find the small hole where the pull string is attached. This is usually a small metal eyelet or a groove.
- Thread the new string: Thread the new pull string through the hole or groove on the recoil starter assembly. Ensure it’s securely attached.
Reconnecting the Pull String to the Handle
The final step is to reattach the pull string to the handle. Here’s how:
- Feed the string through the handle: Feed the new pull string back through the handle.
- Secure the string: Reattach the string to the handle using the original attachment method, whether it’s a loop, clip, or screw.
- Test the pull string: Give the pull string a few gentle pulls to ensure it’s properly secured and retracts smoothly.
Troubleshooting Common Issues
Sometimes, replacing the pull string isn’t as straightforward. Here are some common issues you might encounter and how to address them:
The Pull String Won’t Retract
This can be caused by a broken spring inside the recoil starter assembly.
- Solution: You’ll need to replace the spring. This is usually a more complex repair that involves disassembling the recoil starter assembly.
The Pull String is Too Short or Too Long
- Solution: A short pull string won’t allow for a complete pull, while a long string might get tangled. You can adjust the string length by cutting it to the desired length.
The Pull String is Snagging
- Solution: This can be caused by a worn or damaged pulley within the recoil starter assembly. You’ll need to replace the pulley.
Maintaining Your Lawn Mower’s Pull String
To ensure your lawn mower’s pull string lasts longer and functions smoothly:
Inspect the Pull String Regularly
- Check for wear and tear: Look for fraying, cracks, or any signs of damage. Replace the string if you notice any defects.
Lubricate the Recoil Starter Assembly
- Use a light oil: This will help prevent the assembly from becoming stiff and ensure smooth operation.
Store Your Lawn Mower Properly
- Protect it from the elements: Store your lawn mower indoors or under a cover to prevent damage from rain, snow, or extreme temperatures.
Conclusion
Replacing a pull string on a lawn mower is a simple repair that can be done in just a few minutes. By following the steps outlined in this guide, you can quickly get your lawn mower back in working order. Remember to use the right parts, pay attention to the details, and troubleshoot any issues you encounter along the way. With a little effort, you can easily restore your lawn mower’s pulling power and enjoy a smooth mowing experience.
FAQ
What is a pull string, and why is it important?
A pull string, also known as a recoil starter, is a crucial component of a lawnmower that enables you to start the engine without using an electric starter. It’s essentially a spring-loaded mechanism that rotates the crankshaft, initiating the combustion process. When you pull the cord, you wind the spring, storing energy that’s released to turn the engine. Without a functional pull string, you won’t be able to manually start your lawnmower, making it unusable.
This mechanism is vital for gasoline-powered lawnmowers that lack an electric starter. It offers a convenient and reliable way to start the engine, especially in situations where electricity is unavailable. Therefore, knowing how to install and maintain a pull string is essential for keeping your lawnmower in good working order.
How do I know if I need to replace the pull string?
There are several signs indicating that your pull string might need replacing. Firstly, if the cord feels loose or floppy when you pull it, it’s likely that the string is worn out. Secondly, if the engine starts with difficulty or requires multiple pulls, the string might not be winding the spring properly. Lastly, if you hear a rattling or clicking noise coming from the pull starter assembly, it could be a sign of damage or wear. If you experience any of these issues, it’s recommended to inspect the pull string and replace it if necessary.
Inspecting the pull string for damage or wear is a simple process. Look for frayed or broken strands in the cord itself. Also, examine the spring and the other components of the assembly for any signs of wear or damage. If you find any of these issues, it’s best to replace the entire pull string assembly for optimal performance.
What tools do I need to replace a pull string?
Replacing a pull string on a lawnmower is a straightforward process that doesn’t require specialized tools. You will primarily need a few basic tools that are typically found in a standard toolbox:
- Screwdriver: You’ll need a screwdriver that matches the screws securing the pull string cover. It’s usually a Phillips head screwdriver but could vary depending on the mower model.
- Socket wrench: A socket wrench is used to loosen and tighten the nuts securing the pull string assembly to the engine. The size of the socket will depend on the specific model of your mower.
- Pliers: Pliers are useful for gripping and twisting components like the pull string handle or the spring.
- Replacement pull string assembly: This is the essential component you’ll be replacing. It’s specific to your lawnmower model and can be purchased from hardware stores or online retailers.
How do I remove the old pull string?
Removing the old pull string is the first step in the replacement process. This involves disassembling the pull string assembly and detaching it from the engine. Follow these steps:
- Locate the pull string cover: The cover is usually located on the top of the engine, near the handle.
- Remove the cover screws: Use your screwdriver to remove the screws securing the cover.
- Detach the pull string handle: Disconnect the handle from the pull string assembly. This may involve unscrewing a nut or pulling out a pin.
- Disconnect the pull string from the engine: This is typically achieved by removing a nut or pin that connects the pull string assembly to the crankshaft.
Once the pull string assembly is detached, you can remove the old pull string from the assembly.
How do I install the new pull string?
Installing the new pull string assembly is the reverse of the removal process. You’ll need to attach the new assembly to the engine and reconnect the handle. Here are the steps:
- Attach the new pull string assembly: Connect the new assembly to the engine, ensuring it’s properly aligned. Tighten the securing nuts or bolts.
- Reconnect the handle: Connect the pull string handle to the assembly, ensuring it’s securely attached.
- Reinstall the pull string cover: Secure the cover with the screws you removed earlier.
- Test the pull string: Pull the cord to ensure it winds the spring smoothly and the engine starts easily.
Once you’ve completed these steps, your new pull string should be installed correctly and ready to use.
What should I do if the pull string still doesn’t work after replacement?
If the pull string still doesn’t work properly after replacing it, there could be other issues at play. It’s crucial to troubleshoot the problem to identify the root cause. Here are some possibilities and solutions:
- Incorrect installation: Double-check that you’ve installed the pull string assembly correctly, ensuring all connections are secure.
- Damaged spring: The spring might be worn out or damaged, preventing it from storing and releasing enough energy to start the engine. Replace the spring if necessary.
- Engine problems: If the engine itself is malfunctioning, the pull string won’t be able to start it. Check for problems like a fouled spark plug or a blocked fuel line.
- Faulty pull start mechanism: There could be a problem with the internal components of the pull start mechanism, such as a broken pawl or a worn-out clutch.
Consult a repair manual for your specific model or a professional mechanic if you’re unable to resolve the issue.
What are some tips for extending the life of a pull string?
While pull strings are designed to be durable, taking care of them can extend their lifespan. Here are some tips:
- Regular inspection: Visually inspect the pull string for signs of wear, such as frayed or broken strands. This will help you identify potential issues before they become serious problems.
- Lubrication: Lubricate the pull string assembly periodically with a light oil. This will help the spring and other components move smoothly, reducing wear and tear.
- Avoid excessive force: Don’t pull the string with excessive force, as this can damage the spring or other components.
- Store properly: When not in use, store your lawnmower in a clean, dry environment to prevent rust and corrosion.
By following these tips, you can help ensure that your pull string lasts longer and continues to operate smoothly for many years.