The satisfying “thump” of a lawn mower starting is a sound that signifies summer, fresh-cut grass, and a relaxing afternoon in the yard. But what happens when that familiar sound is replaced by a frustrating tug and a broken pull cord? A broken pull cord can quickly turn a simple chore into a frustrating ordeal. Don’t worry, this article will guide you through the process of repairing your lawn mower’s pull cord, saving you time, money, and a lot of frustration. We’ll walk you through understanding the problem, identifying the necessary parts, and providing step-by-step instructions to get your mower back up and running in no time.
A broken pull cord is a common problem that can be easily fixed with a few simple tools and a little bit of know-how. The issue usually stems from a worn-out cord, a damaged recoil spring, or a broken recoil starter assembly. Let’s dive into the details!
Understanding the Pull Cord System
Before diving into the repair process, it’s essential to understand how the pull cord system works. The pull cord is connected to a recoil spring that is housed within the recoil starter assembly. When you pull the cord, the spring unwinds, rotating the engine crankshaft and ultimately starting the engine. This process is designed to be relatively straightforward, but over time, wear and tear can lead to problems with the pull cord system.
Identifying the Problem
The first step in repairing your pull cord is identifying the exact problem. Here are some common issues:
- Broken or Worn-Out Pull Cord: The most common problem is a simple broken or worn-out pull cord. You might see the cord fraying, snapping, or detaching from the handle.
- Damaged Recoil Spring: The recoil spring is responsible for storing and releasing energy to start the engine. If the spring is damaged or worn, it might not provide enough tension to start the engine, resulting in a weak pull.
- Broken Recoil Starter Assembly: In some cases, the entire recoil starter assembly might be broken or damaged. This can happen if the starter is dropped or subjected to excessive force.
Gather the Necessary Tools and Parts
Once you’ve identified the problem, you’ll need to gather the necessary tools and parts. You can find these at your local hardware store or online.
Tools Needed:
- Screwdriver (Philips head and flat head)
- Wrench (Size will depend on your lawn mower model)
- Pliers
- Wire cutters (if you need to cut the old pull cord)
Parts Needed:
- Replacement Pull Cord (Make sure you buy a cord compatible with your mower model)
- New Recoil Spring (If you find the old one is worn out or damaged)
- Recoil Starter Assembly (If the old one is broken)
Repairing a Broken Pull Cord
Now let’s get into the practical part of repairing your lawn mower pull cord. Here’s a step-by-step guide:
1. Removing the Old Pull Cord
- Disconnect the Spark Plug: This is an important safety step, as it prevents accidental ignition while you are working on the mower. Locate the spark plug on the engine and use a wrench to unscrew it.
- Locate the Pull Cord Assembly: The pull cord assembly is usually located on the top of the engine. It’s the housing that holds the recoil spring and pull cord.
- Remove the Housing Cover: The cover is typically held in place by screws or clips. Use a screwdriver or pliers to remove these fasteners and carefully detach the cover.
- Release the Old Pull Cord: Once the cover is off, you should see the pull cord wrapped around the recoil spring. Use your fingers or pliers to gently release the cord from the spring. You may need to cut the cord with wire cutters if it’s completely frayed or broken.
2. Installing the New Pull Cord
- Thread the New Cord: Carefully thread the new pull cord through the guide holes on the recoil starter assembly. Make sure the cord is securely in place and there’s no slack.
- Attach the Pull Cord Handle: Secure the pull cord handle to the end of the cord using the clips or screws that came with the new cord.
- Wrap the Cord Around the Recoil Spring: Wrap the new cord around the recoil spring, following the path of the old cord. Make sure the cord is evenly spaced and not tangled.
- Reinstall the Housing Cover: Place the housing cover back on and secure it with the screws or clips you removed earlier.
3. Testing the Pull Cord
- Reconnect the Spark Plug: Now that the pull cord is installed, reconnect the spark plug.
- Test the Pull Cord: Carefully pull the cord a few times to ensure it’s working properly. The cord should feel smooth and the spring should provide a strong resistance.
Repairing a Damaged Recoil Spring or Recoil Starter Assembly
If you’ve determined that the problem is a damaged recoil spring or a broken recoil starter assembly, you’ll need to replace those components.
Replacing the Recoil Spring
- Remove the Old Recoil Spring: Once you’ve removed the pull cord housing cover, you’ll need to remove the old recoil spring. Depending on your lawn mower model, the spring may be held in place by a clip or a small nut. Use a screwdriver or pliers to remove the spring.
- Install the New Recoil Spring: Carefully place the new recoil spring in the same location as the old one, making sure it’s properly aligned and seated. If there’s a clip or nut, reinstall it to secure the spring.
Replacing the Recoil Starter Assembly
- Remove the Old Assembly: Remove the pull cord housing cover and identify the recoil starter assembly. It may be held in place by screws or clips. Remove these fasteners and carefully detach the assembly.
- Install the New Assembly: Align the new recoil starter assembly with the housing. Secure it in place with the screws or clips you removed earlier.
Troubleshooting Tips
- Check the Engine Oil Level: Low engine oil levels can cause starting problems. Make sure you have enough oil in the engine before trying to start it.
- Clean the Spark Plug: A dirty or fouled spark plug can also prevent the engine from starting. Clean the spark plug or replace it with a new one.
- Check the Air Filter: A clogged air filter can restrict airflow to the engine, making it difficult to start. Clean or replace the air filter.
- Check the Choke: If you’re using a lawn mower with a choke, make sure it’s in the correct position before starting the engine.
Preventative Maintenance
While pull cord repairs can be relatively simple, preventative maintenance can help to prevent future problems. Here are some tips:
- Inspect the Pull Cord Regularly: Periodically check the pull cord for signs of wear and tear, such as fraying or cracking. Replace the cord as needed.
- Keep the Recoil Spring Clean: Dirt and debris can accumulate on the recoil spring, reducing its effectiveness. Clean the spring regularly with a brush or compressed air.
- Lubricate the Recoil Starter Assembly: Apply a light coating of lubricant to the recoil starter assembly, especially the spring and the cord’s contact points. This will help to prevent wear and tear.
Conclusion
A broken pull cord can be a frustrating experience, but with this guide, you can easily fix the problem and get your lawn mower back in action. By following these steps, you can save money on professional repairs and enjoy the satisfaction of fixing something yourself. Remember, preventative maintenance is key to keeping your lawn mower running smoothly and avoiding future problems. So, get your tools and parts ready, and tackle that pull cord repair with confidence!
FAQ
Q1: What are the common signs of a broken pull cord?
The most obvious sign of a broken pull cord is when it snaps or breaks entirely. However, even if the cord appears intact, it might be frayed, stretched, or weakened, making it difficult to start the mower. Other signs include a feeling of slackness when pulling the cord, a loud snapping sound when you try to start the mower, or the recoil spring not retracting properly.
If you experience any of these issues, it’s best to inspect the pull cord thoroughly to ensure it is in good condition. Replacing a damaged pull cord is a simple task that can save you a lot of frustration and potential injuries.
Q2: How do I access the pull cord on my lawn mower?
To access the pull cord, you’ll need to remove the cover that houses the engine and recoil assembly. The cover is typically held in place by a few screws. Once the cover is removed, you should be able to see the pull cord assembly, which includes the cord, spring, and pulley.
Some lawn mowers may have a slightly different design, so it’s always a good idea to consult your owner’s manual for specific instructions. Remember to disconnect the spark plug before working on the engine to avoid accidental starts.
Q3: What tools do I need to replace a broken pull cord?
Replacing a broken pull cord is a relatively straightforward task, and you only need a few basic tools:
- Screwdriver: To remove the cover that houses the engine and recoil assembly.
- Pliers: To help you pull out the old cord and insert the new one.
- New Pull Cord: You can find replacement cords at most hardware stores or online retailers.
With these tools, you’ll be able to easily replace your broken pull cord and get your lawn mower back in working order.
Q4: Can I reuse the old pull cord?
It’s not recommended to reuse the old pull cord, even if it appears to be slightly damaged. The cord may have weakened fibers, which can lead to further breakage in the future.
Additionally, the recoil spring might be stretched out from the previous breakage, requiring a new pull cord for proper tension. Replacing the cord with a new one ensures a secure and reliable connection, preventing future problems.
Q5: How do I properly install a new pull cord?
Installing a new pull cord is a simple process. First, you’ll need to thread the new cord through the recoil assembly. Make sure the cord is securely attached to the pulley. Then, you’ll need to wind the cord around the spring, ensuring that it is evenly wound and not tangled. Finally, reassemble the cover and secure it with the screws.
Always refer to your owner’s manual for specific instructions regarding your lawn mower model.
Q6: How often should I replace the pull cord?
There is no specific timeframe for replacing the pull cord, as it depends on the usage and quality of the cord. However, it’s always a good idea to inspect the cord regularly for signs of wear and tear. If you notice any fraying, stretching, or weakening, it’s best to replace it as soon as possible.
A broken pull cord can not only hinder your mowing but also create safety hazards.
Q7: What if I can’t fix the broken pull cord myself?
If you are unsure about the process or feel uncomfortable working with the engine, it’s best to seek professional help. A local lawn mower repair shop or qualified mechanic can easily replace the cord for you.
Always remember to prioritize your safety and avoid attempting complex repairs if you are not confident in your abilities.