The lawnmower is an essential tool for keeping your yard looking neat and tidy. But like any mechanical device, it can break down from time to time. A common problem is a broken or detached pull cord, leaving you stranded in the middle of your mowing session. Don’t worry – replacing a lawnmower pull cord is a relatively straightforward repair that you can often do yourself. This article will guide you through the steps involved in putting a pull cord back into your lawnmower, ensuring you’re back to cutting grass in no time.
The process of replacing a pull cord typically involves removing the old cord, installing the new one, and ensuring it’s properly connected to the engine. While the specific steps may vary slightly depending on your lawnmower’s model and design, the core principles remain the same. Let’s delve into the specifics.
Understanding the Pull Cord Mechanism
Before jumping into the repair, it’s helpful to understand the mechanics behind a lawnmower pull cord. The pull cord is attached to a recoil starter, a spring-loaded mechanism that provides the force needed to start the engine. Here’s a breakdown:
- Pull Cord: The rope that you pull to engage the starter.
- Recoil Starter: A spring-loaded mechanism containing a pawl and ratchet that engages with the engine crankshaft.
- Pawl and Ratchet: These components allow the spring in the recoil starter to wind up and store energy. When you pull the cord, the pawl releases, allowing the spring to unwind, turning the crankshaft and starting the engine.
Getting Ready for the Repair
Before starting, you’ll need a few basic tools and materials:
- New Pull Cord: Ensure you purchase a pull cord specifically designed for your lawnmower model.
- Screwdriver: A Phillips screwdriver is typically used for lawnmower housing screws.
- Wrench: You might need a wrench to loosen nuts or bolts, depending on your lawnmower’s design.
- Gloves: Protecting your hands is always a good idea, especially when working with sharp objects.
- Clear Workspace: A clean area will make the repair process easier and more efficient.
Step 1: Disengage the Blade
Safety First! Always disconnect the spark plug wire before attempting any repairs to the lawnmower engine. This will prevent accidental starting while working on the pull cord mechanism.
Step 2: Accessing the Recoil Starter
Locate the Recoil Housing: The recoil starter is typically located underneath the engine housing, near the pull cord. It might be covered by a protective shroud or housing.
Remove the Housing: You’ll likely need to remove screws or bolts to access the recoil starter. Refer to your lawnmower’s user manual for specific instructions.
Step 3: Removing the Old Pull Cord
Unwind the Cord: Gently pull the old pull cord out of the recoil housing.
Detach the Cord: Look for the end of the old pull cord attached to the recoil starter. It might be secured with a clip, a knot, or a small screw. Remove this attachment.
Step 4: Installing the New Pull Cord
Attach the New Cord: Thread the new pull cord through the recoil housing and attach it to the recoil starter mechanism. Make sure it’s securely fastened.
Wind the Cord: Carefully wind the new pull cord around the recoil starter spool. The cord should be wound smoothly and evenly.
Step 5: Reassemble the Recoil Housing
Reinstall the Housing: Replace the housing and secure it with the screws or bolts you removed earlier.
Step 6: Test the New Pull Cord
Reconnect the Spark Plug: Make sure the spark plug wire is securely connected to the spark plug.
Start the Engine: Try starting the lawnmower using the new pull cord. If the engine starts without any issues, you’ve successfully replaced the pull cord!
Step 7: Clean Up and Safety Check
Dispose of the Old Cord: Dispose of the old pull cord responsibly.
Final Inspection: Ensure all screws, bolts, and connections are secure before using the lawnmower.
Troubleshooting Common Problems
While replacing the pull cord is often a straightforward process, you may encounter some challenges:
The New Cord Won’t Wind Correctly
This could be due to a faulty recoil starter or a problem with the spring tension. You might need to adjust the spring tension or replace the recoil starter.
The Pull Cord Feels Stiff
A stiff pull cord often indicates a problem with the recoil starter spring. The spring might be worn or broken, requiring replacement.
The Engine Won’t Start
If the engine fails to start after replacing the pull cord, check the following:
- Spark Plug: Ensure the spark plug is properly connected and functioning.
- Fuel Supply: Make sure the fuel tank is full and the fuel line is clear.
- Air Filter: A clogged air filter can prevent the engine from starting.
Professional Help
If you’re encountering persistent problems or feel uncomfortable working on the lawnmower, it’s always best to consult a professional mechanic. They have the expertise and specialized tools to diagnose and repair any complex issues.
Conclusion
Replacing a lawnmower pull cord is a simple repair that you can often tackle yourself. By following the steps outlined above and using caution, you can restore your lawnmower to working order quickly and efficiently. Remember to always prioritize safety and consult a professional if you encounter any problems. With a little effort, you can keep your lawnmower in top shape and enjoy a well-maintained lawn.
Frequently Asked Questions
1. How do I know if my pull cord is broken?
If your lawnmower engine won’t start when you pull the cord, the cord might be broken. Check for visible signs of damage like fraying or a broken spring. If the cord feels loose or doesn’t recoil properly, it’s likely damaged. A broken pull cord is a common problem and can be easily replaced with a new one.
2. What tools do I need to replace the pull cord?
You’ll need a few basic tools to replace the pull cord. A Phillips head screwdriver and a pair of pliers are essential. You might also need a wrench to loosen the recoil housing if it’s stuck. Make sure to disconnect the spark plug wire before working on the engine to prevent accidental starting.
3. How do I remove the old pull cord?
First, locate the recoil housing on the engine. It’s usually a round or oval-shaped part with the pull cord coming out of it. Remove the screws holding the housing in place. You may need to pull the cord out slightly to access the screws. Once the housing is removed, carefully take out the old cord, paying attention to its routing.
4. How do I install the new pull cord?
Start by threading the new cord through the holes in the recoil housing. Make sure it follows the same path as the old cord. Connect the cord to the spring inside the housing. The spring will retract the cord automatically. Secure the spring to the housing with the provided clip or nut.
5. What if the recoil housing is stuck?
If the recoil housing is stuck, you’ll need to use a wrench to loosen it. Place the wrench on the nut that holds the housing in place and turn it counter-clockwise. Use caution as the housing might be under tension. If you can’t loosen it, you may need to use a penetrating oil to loosen the threads.
6. How do I test the new pull cord?
Once the new cord is installed, reconnect the spark plug wire and test the engine. Pull the cord several times to make sure it recoils properly. If it doesn’t recoil or feels loose, check the spring connection and make sure the cord is threaded correctly.
7. How often should I replace the pull cord?
It’s a good idea to inspect the pull cord every season. If it’s showing signs of wear or damage, replace it immediately. This will ensure smooth engine operation and prevent potential safety hazards.