Learning how to turn lawn mower off properly is a fundamental skill for any homeowner. Turning a lawn mower off correctly involves more than just releasing the safety handle on a push model. It is a key safety practice that protects you, your equipment, and your property.
This guide covers every common type of mower. We will walk you through the precise steps for each model.
You will also learn important safety tips and troubleshooting advice for when the engine won’t stop.
How To Turn Lawn Mower Off
The basic principle for stopping any lawn mower is to interrupt the engine’s operation. This is typically done by cutting off the spark or the fuel supply. The method varies significantly depending on whether you have a push mower, a riding mower, or a zero-turn model.
Always make sure the mower is on a flat, stable surface before you begin the shutdown process. Never attempt to turn off a mower while it is on a slope.
Stopping A Standard Push Mower
Most modern walk-behind lawn mowers use a “deadman” control system. This is a safety feature designed to stop the blade quickly if you let go. The process is generally straightforward, but there are a few key points to remember.
First, release the brake control handle. This is the lever you hold down to keep the engine running. Letting go will immediately stop the engine and the blade rotation on most models.
Next, locate the engine ON/OFF switch or lever. Even after the engine stops, you should move this switch to the “OFF” position. This ensures the engine cannot accidentally restart.
Finally, disconnect the spark plug wire. This is a crucial extra safety step if you will be performing any maintenance, like cleaning the deck or unclogging the chute. It guarantees the engine cannot start while you are working near the blade.
Steps For A Manual Push Mower
- Release the brake control handle fully.
- Wait for the engine and blade to come to a complete stop.
- Move the engine stop switch to the “OFF” position.
- For maintenance, disconnect the spark plug wire and secure it away from the plug.
Turning Off A Riding Lawn Mower
Shutting down a riding mower requires a more deliberate sequence. This ensures all systems are properly disengaged. Rushing this process can lead to mechanical issues.
Begin by bringing the mower to a complete stop. Set the parking brake firmly. This prevents the mower from rolling, especially on inclines.
Next, lower the mower deck to its lowest position or the setting recommended in your manual. This relieves tension on the deck lift system.
Disengage the mower blades by moving the PTO (Power Take-Off) lever or switch to the “OFF” position. You should here a distinct change in the engine sound as the blade clutch disengages.
Place the gear shift lever in “Neutral” or “Park,” depending on your model. Then, turn the ignition key to the “OFF” position and remove it. Some models have a separate fuel shut-off valve that should be turned as well.
Essential Riding Mower Shutdown Checklist
- Park on level ground.
- Set the parking brake.
- Lower the mower deck.
- Disengage the PTO (blades).
- Shift to Neutral/Park.
- Turn the key to OFF and remove it.
- Consider using the fuel valve.
How To Shut Down A Zero-Turn Mower
Zero-turn mowers have highly responsive hydrostatic drives. Their shutdown procedure is similar to a riding mower but with extra emphasis on the drive controls.
First, bring the mower to a full stop. Slowly move the twin steering levers to the neutral position, which is usually centered. Ensure both levers are locked in the neutral detent.
Engage the parking brake. On many zero-turn models, this involves pulling up a lever located between the seats. Always reference your owner’s manual for the exact location and method.
Disengage the mower blades using the PTO switch. Allow the engine to idle for about 30 seconds. This lets the engine cool down and the hydraulic systems stabilize.
After idling, turn the ignition key to “OFF.” Remove the key from the ignition switch to prevent unauthorized use. It is also a good practice to disconnect the battery if the mower will be stored for an extended period.
Stopping An Electric Lawn Mower
Electric mowers, both corded and cordless, are generally the simplest to turn off. The risk here is often accidental restarting, so paying attention to the power source is key.
For a corded electric mower, release the safety start button or handle. Then, unplug the power cord from the wall outlet first, before disconnecting it from the mower. This prevents any chance of a spark at the mower’s connection point.
For a cordless battery-powered mower, release the safety handle or button. Remove the battery pack from the mower. This is the most effective way to ensure it cannot be turned on accidentally.
Store the battery in a cool, dry place away from metal objects. This prevents short circuits and preserves battery life. Always follow the manufacturers specific storage instructions.
What To Do If Your Mower Won’t Turn Off
Sometimes, a mower may continue to run even after you follow the normal steps. This can be alarming, but there are safe ways to handle it. Do not panic, and never try to stop the blade with your hand or foot.
For a push mower, if the engine does not stop when you release the handle, locate the spark plug wire. Carefully pull the boot off the spark plug. This will stop the engine immediately by cutting the spark. Wear a glove for protection.
For a riding mower, if turning the key does not work, locate the fuel shut-off valve near the gas tank or fuel line. Turn the valve to the closed position. The engine will stall once it burns the remaining fuel in the carburetor.
As a last resort, you can choke the engine. On most mowers, moving the choke lever to the full “ON” position while the engine is running will flood it and cause it to stall. Use this method cautiously.
After forcing the engine to stop, do not use the mower again until you have identified and fixed the problem. Common causes include a faulty ignition switch, a stuck brake safety switch, or a broken control cable.
Critical Safety Tips For Shutting Down Your Mower
Following a safe shutdown routine prevents accidents and extends your mower’s lifespan. These tips should become a habit every time you finish mowing.
Always allow the engine to cool before refueling or storing the mower in a shed or garage. A hot engine can ignite gasoline fumes. Wait at least 5-10 minutes after shutdown.
Clear the mower deck of any grass clippings and debris after each use. This prevents corrosion and keeps the discharge chute from clogging. It also makes your next start-up easier.
Never leave a running mower unattended, even for a moment. If you need to step away, always turn the engine off completely. This is especially important if children or pets are nearby.
Regularly check that all safety switches and shut-off controls are functioning properly. A sticky or broken switch is a hazard that needs immediate repair. Consult a professional if you are unsure.
Seasonal Shutdown And Long-Term Storage
Properly preparing your mower for winter or long storage is an extended version of the shutdown process. It prevents fuel system damage and ensures easy starting next season.
For the final mow of the season, add a fuel stabilizer to a nearly empty gas tank. Run the engine for 5 minutes to circulate the treated fuel through the carburetor. This prevents the gasoline from gumming up.
After the stabilized fuel has run through, turn the mower off using its normal procedure. Then, either run the engine until the tank is completely empty, or use a siphon to remove all fuel. An empty tank prevents condensation and varnish buildup.
Remove the spark plug and add a small amount of engine oil into the cylinder. Pull the starter cord slowly a few times to coat the cylinder walls, then reinstall the plug. This prevents internal rust.
Clean the mower thoroughly, including underneath the deck. Store it in a dry, covered place. For battery-powered mowers, store the battery at about a 50% charge in a climate-controlled environment if possible.
Frequently Asked Questions
How Do I Turn Off A Lawn Mower That Won’t Stop?
If the normal controls fail, safely disconnect the spark plug wire on a push mower or close the fuel shut-off valve on a riding mower. These actions cut the engine’s ignition or fuel supply directly.
Is It Bad To Turn A Lawn Mower Off Without Letting It Idle?
For most modern mowers, it is acceptable to turn them off immediately after disengaging the blades. However, letting a riding mower idle for 30 seconds allows turbochargers to cool and hydraulic systems to settle, which is recommended.
Why Should I Disconnect The Spark Plug?
Disconnecting the spark plug wire is a critical safety step before performing any maintenance. It physically prevents the engine from starting, protecting you from accidental blade engagement while your hands are near it.
What Is The Correct Way To Turn Off A Riding Mower?
The correct sequence is: engage parking brake, lower deck, disengage PTO (blades), shift to neutral, turn ignition key to OFF, and remove the key. Always consult your specific model’s manual for variations.
Can I Just Pull The Key Out To Stop My Mower?
No, you should never just yank the key out while the engine is running. Always follow the full shutdown procedure to disengage moving parts like the blades first. Pulling the key abruptly can cause electrical issues and dosen’t allow for proper cooling.