My Electric Lawnmower is vibrating excessively

Quick Answer

Excessive vibration in an electric lawnmower is most commonly caused by a damaged, unbalanced, or worn blade. In many cases, the blade will need to be inspected and replaced to resolve the issue.

Tip: Even a small impact with a stone or hard object can cause blade imbalance and vibration.

Before You Start

Before inspecting the mower:

• Switch the lawnmower off
• Disconnect it from the mains power supply
• Ensure the blade has completely stopped
• Place the mower on a stable surface

Important: Always wear protective gloves when working near the blade.

Possible Cause

The most common cause of excessive vibration is blade damage or imbalance.

This may happen if:

• The blade has struck a stone, root, or other hard object
• The blade is worn, bent, or rusty
• The lugs on the blade adapter have sheared or become damaged

If any of the above apply, the blade should be replaced before further use.

If the Blade Is Damaged and Stuck

If the blade is damaged and difficult to remove, follow these steps carefully.

1. Secure the blade

Place a suitable wooden block between the blade and the mower deck to prevent movement.

2. Loosen the fixing bolt

Using a socket wrench:

• Fit the wrench onto the blade fixing bolt
• Turn the bolt anti-clockwise to loosen it
• Apply steady pressure if required
• Continue until the bolt is fully removed

3. Remove and replace the blade

• Carefully remove the damaged blade
• Fit a new compatible blade onto the blade adapter
• Refit the blade fixing bolt
• Tighten securely

Important: Ensure the blade is fitted in the correct orientation before tightening.

If the Issue Persists

If excessive vibration continues after replacing the blade:

• Stop using the mower
• Contact our Technical Support Team
• Provide your model number and details of the issue

There may be a deeper issue with the blade adapter or internal drive components.

Important Information

• Never operate the mower with a damaged or unbalanced blade
• Always inspect the blade after hitting hard objects
• Replace worn or bent blades immediately
• Ensure all fixings are securely tightened before use

Frequently Asked Questions

Why is my lawnmower vibrating so much?

The most common cause is a damaged or unbalanced blade, often caused by impact with stones or hard objects.

Can I still use the mower if it vibrates?

No. Stop using the mower immediately, as continued use may cause further damage or unsafe operation.

Do I need to replace the blade if it is slightly bent?

Yes. Even minor bending can cause imbalance and excessive vibration.

What if vibration continues after replacing the blade?

If the issue persists, contact our Technical Support Team, as there may be damage to the blade adapter or internal components.