My Electric Lawnmower is cutting uneven and rough

Quick Answer

If your electric lawnmower is cutting unevenly or leaving a rough finish, it is usually caused by a damaged, blunt, or incorrectly fitted blade, or a build-up of grass and debris under the deck.

Tip: A sharp, balanced blade and a clean mower deck are essential for an even cut.

Before You Start

Before inspecting or maintaining your lawnmower:

• Switch the mower 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 Causes and Basic Checks

1. Blade condition

Check whether the blade is:

• Blunt
• Worn
• Damaged
• Bent or unbalanced

Blade damage may occur due to:

• Contact with stones, roots, or other hard objects
• Rust or corrosion over time
• Damage to the blade adapter, such as sheared lugs

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

2. Underside of mower deck

Inspect the underside of the mower and check for:

• Built-up grass clippings
• Compact debris
• Blockages around the blade area

Clear any debris before using the mower again.

A clean deck helps maintain airflow and cutting efficiency.

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 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 loosened and removed

3. Remove and replace the blade

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

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

If the Issue Persists

If the mower continues to cut unevenly after cleaning and replacing or checking the blade:

• Stop using the product
• Contact our Technical Support Team
• Provide your model number and a description of the issue

There may be an issue with blade alignment or internal components.

Important Information

• Always use a sharp, undamaged blade
• Clean the mower deck regularly
• Replace blades that are bent or worn
• Ensure the blade is securely fitted before each use
• Do not operate the mower if cutting performance is poor or unstable

Frequently Asked Questions

Why is my lawnmower cutting uneven?

This is usually caused by a blunt, damaged, or incorrectly fitted blade, or a blocked mower deck.

Do I need to replace a blunt blade?

Yes. A blunt blade will tear grass rather than cut it cleanly, resulting in an uneven finish.

Can grass build-up affect cutting performance?

Yes. Build-up under the mower deck can restrict airflow and affect cutting quality.

What should I do if replacing the blade does not fix the issue?

If the problem continues after replacing the blade and cleaning the deck, contact our Technical Support Team for further assistance.